bugged
stringlengths 6
599k
| fixed
stringlengths 6
40.8M
| __index_level_0__
int64 0
3.24M
|
|---|---|---|
public void testCountingApiExceptions(){ Set ids = Collections.singleton(new Long(1)); // Does not exist try { iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Missing plural on dataset try { iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null ids try { iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Poorly formed try { iPojos.getCollectionCount("hackers.rock!!!","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount("","datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount(null,"datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty property string try { iPojos.getCollectionCount("ome.model.core.Image","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null property string try { iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } }
|
} catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); public } catch (EJBException ejbe) { log.warn("Should not be here."); void } catch (EJBException ejbe) { log.warn("Should not be here."); testCountingApiExceptions(){ } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); Set } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); = } catch (EJBException ejbe) { log.warn("Should not be here."); Collections.singleton(new } catch (EJBException ejbe) { log.warn("Should not be here."); Long(1)); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Does } catch (EJBException ejbe) { log.warn("Should not be here."); not } catch (EJBException ejbe) { log.warn("Should not be here."); exist } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Missing } catch (EJBException ejbe) { log.warn("Should not be here."); plural } catch (EJBException ejbe) { log.warn("Should not be here."); on } catch (EJBException ejbe) { log.warn("Should not be here."); dataset } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Poorly } catch (EJBException ejbe) { log.warn("Should not be here."); formed } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("hackers.rock!!!","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("","datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount(null,"datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); }
| 3,230,210
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public void testCountingApiExceptions(){ Set ids = Collections.singleton(new Long(1)); // Does not exist try { iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Missing plural on dataset try { iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null ids try { iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Poorly formed try { iPojos.getCollectionCount("hackers.rock!!!","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount("","datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount(null,"datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty property string try { iPojos.getCollectionCount("ome.model.core.Image","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null property string try { iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } }
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} catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); public } catch (EJBException ejbe) { log.warn("Should not be here."); void } catch (EJBException ejbe) { log.warn("Should not be here."); testCountingApiExceptions(){ } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); Set } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); = } catch (EJBException ejbe) { log.warn("Should not be here."); Collections.singleton(new } catch (EJBException ejbe) { log.warn("Should not be here."); Long(1)); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Does } catch (EJBException ejbe) { log.warn("Should not be here."); not } catch (EJBException ejbe) { log.warn("Should not be here."); exist } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Missing } catch (EJBException ejbe) { log.warn("Should not be here."); plural } catch (EJBException ejbe) { log.warn("Should not be here."); on } catch (EJBException ejbe) { log.warn("Should not be here."); dataset } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Poorly } catch (EJBException ejbe) { log.warn("Should not be here."); formed } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("hackers.rock!!!","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("","datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount(null,"datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); }
| 3,230,211
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public void testCountingApiExceptions(){ Set ids = Collections.singleton(new Long(1)); // Does not exist try { iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Missing plural on dataset try { iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null ids try { iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Poorly formed try { iPojos.getCollectionCount("hackers.rock!!!","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount("","datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount(null,"datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty property string try { iPojos.getCollectionCount("ome.model.core.Image","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null property string try { iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } }
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} catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); public } catch (EJBException ejbe) { log.warn("Should not be here."); void } catch (EJBException ejbe) { log.warn("Should not be here."); testCountingApiExceptions(){ } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); Set } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); = } catch (EJBException ejbe) { log.warn("Should not be here."); Collections.singleton(new } catch (EJBException ejbe) { log.warn("Should not be here."); Long(1)); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Does } catch (EJBException ejbe) { log.warn("Should not be here."); not } catch (EJBException ejbe) { log.warn("Should not be here."); exist } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Missing } catch (EJBException ejbe) { log.warn("Should not be here."); plural } catch (EJBException ejbe) { log.warn("Should not be here."); on } catch (EJBException ejbe) { log.warn("Should not be here."); dataset } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Poorly } catch (EJBException ejbe) { log.warn("Should not be here."); formed } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("hackers.rock!!!","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("","datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount(null,"datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); }
| 3,230,212
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public void testCountingApiExceptions(){ Set ids = Collections.singleton(new Long(1)); // Does not exist try { iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Missing plural on dataset try { iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null ids try { iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Poorly formed try { iPojos.getCollectionCount("hackers.rock!!!","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount("","datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty Class string try { iPojos.getCollectionCount(null,"datasets",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Empty property string try { iPojos.getCollectionCount("ome.model.core.Image","",ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } // Null property string try { iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); fail("An exception should have been thrown"); } catch (ApiUsageException e) { // Good. } }
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} catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); public } catch (EJBException ejbe) { log.warn("Should not be here."); void } catch (EJBException ejbe) { log.warn("Should not be here."); testCountingApiExceptions(){ } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); Set } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); = } catch (EJBException ejbe) { log.warn("Should not be here."); Collections.singleton(new } catch (EJBException ejbe) { log.warn("Should not be here."); Long(1)); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Does } catch (EJBException ejbe) { log.warn("Should not be here."); not } catch (EJBException ejbe) { log.warn("Should not be here."); exist } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("DoesNotExist","meNeither",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Missing } catch (EJBException ejbe) { log.warn("Should not be here."); plural } catch (EJBException ejbe) { log.warn("Should not be here."); on } catch (EJBException ejbe) { log.warn("Should not be here."); dataset } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","dataset",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); ids } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.containers.Project","datasets",null,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Poorly } catch (EJBException ejbe) { log.warn("Should not be here."); formed } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("hackers.rock!!!","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("","datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); Class } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount(null,"datasets",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Empty } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image","",ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Null } catch (EJBException ejbe) { log.warn("Should not be here."); property } catch (EJBException ejbe) { log.warn("Should not be here."); string } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); try } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); iPojos.getCollectionCount("ome.model.core.Image",null,ids,null); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); fail("An } catch (EJBException ejbe) { log.warn("Should not be here."); exception } catch (EJBException ejbe) { log.warn("Should not be here."); should } catch (EJBException ejbe) { log.warn("Should not be here."); have } catch (EJBException ejbe) { log.warn("Should not be here."); been } catch (EJBException ejbe) { log.warn("Should not be here."); thrown"); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); catch } catch (EJBException ejbe) { log.warn("Should not be here."); (ApiUsageException } catch (EJBException ejbe) { log.warn("Should not be here."); e) } catch (EJBException ejbe) { log.warn("Should not be here."); { } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); // } catch (EJBException ejbe) { log.warn("Should not be here."); Good. } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); } catch (EJBException ejbe) { log.warn("Should not be here."); }
| 3,230,213
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public void test_getUserImages() throws Exception { try { results = iPojos.getUserImages(null); fail("APIUsage: experimenter/group option must be set."); } catch (ApiUsageException e) { } results = iPojos.getUserImages(new PojoOptions().exp(new Long(10000)).map()); assertTrue(results.size() > 0); }
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public void test_getUserImages() throws Exception { try { results = iPojos.getUserImages(null); fail("APIUsage: experimenter/group option must be set."); } catch (ApiUsageException e) { } catch (EJBException ejbe) { log.warn("Should not be here."); } results = iPojos.getUserImages(new PojoOptions().exp(new Long(10000)).map()); assertTrue(results.size() > 0); }
| 3,230,215
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ThumbWin(JFrame parent, BufferedImage fullScaleThumb, DataObject image) { super(parent, fullScaleThumb); if (image == null) throw new IllegalArgumentException("No image."); dataObject = image; parentFrame = parent; uiDelegate.attachMouseListener(this); addMouseListener(this); }
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ThumbWin(JFrame parent, BufferedImage fullScaleThumb, DataObject image, HiViewer model, ImageDisplay node) { super(parent, fullScaleThumb); if (image == null) throw new IllegalArgumentException("No image."); dataObject = image; parentFrame = parent; uiDelegate.attachMouseListener(this); addMouseListener(this); }
| 3,230,217
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public void unmarshal(HttpMethod response, HttpChannel context) throws TransportException { checkStatusCode(response); this.reply = REPLY; }
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public void unmarshal(HttpMethod response, HttpChannel context) throws TransportException { checkStatusCode(response); this.reply = REPLY; }
| 3,230,219
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private void createPlanes() throws IOException { planeCount = pixels.getSizeZ() * pixels.getSizeC() * pixels.getSizeT(); // FIXME: *Hack* right now we assume everything is 16-bits wide planeSize = pixels.getSizeX() * pixels.getSizeY() * 2; path = ome.io.nio.Helper.getPixelsPath(pixels.getId()); originalDigests = new byte[planeCount][]; FileOutputStream stream = new FileOutputStream(path); for (int i = 0; i < planeCount; i++) { byte[] plane = createPlane(planeSize.intValue(), (byte)(i - 128)); originalDigests[i] = Helper.calculateMessageDigest(plane); stream.write(plane); } }
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private void createPlanes() throws IOException { planeCount = pixels.getSizeZ() * pixels.getSizeC() * pixels.getSizeT(); // FIXME: *Hack* right now we assume everything is 16-bits wide planeSize = pixels.getSizeX() * pixels.getSizeY() * 2; path = new PixelsService(PixelsService.ROOT_DEFAULT).getPixelsPath(pixels.getId()); originalDigests = new byte[planeCount][]; FileOutputStream stream = new FileOutputStream(path); for (int i = 0; i < planeCount; i++) { byte[] plane = createPlane(planeSize.intValue(), (byte)(i - 128)); originalDigests[i] = Helper.calculateMessageDigest(plane); stream.write(plane); } }
| 3,230,220
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public void testAllPlanes() throws IOException, DimensionsOutOfBoundsException { PixelsService service = PixelsService.getInstance(); PixelBuffer pixbuf = service.getPixelBuffer(pixels); String newMessageDigest; String oldMessageDigest; int digestOffset; for (int t = 0; t < pixels.getSizeT(); t++) { for (int c = 0; c < pixels.getSizeC(); c++) { for (int z = 0; z < pixels.getSizeZ(); z++) { digestOffset = getDigestOffset(z, c, t); MappedByteBuffer plane = pixbuf.getPlane(z, c, t); newMessageDigest = Helper.bytesToHex(Helper.calculateMessageDigest(plane)); oldMessageDigest = Helper.bytesToHex(originalDigests[digestOffset]); assertEquals(getPlaneCheckErrStr(z, c, t), oldMessageDigest, newMessageDigest); } } } }
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public void testAllPlanes() throws IOException, DimensionsOutOfBoundsException { PixelsService service = new PixelsService(PixelsService.ROOT_DEFAULT); PixelBuffer pixbuf = service.getPixelBuffer(pixels); String newMessageDigest; String oldMessageDigest; int digestOffset; for (int t = 0; t < pixels.getSizeT(); t++) { for (int c = 0; c < pixels.getSizeC(); c++) { for (int z = 0; z < pixels.getSizeZ(); z++) { digestOffset = getDigestOffset(z, c, t); MappedByteBuffer plane = pixbuf.getPlane(z, c, t); newMessageDigest = Helper.bytesToHex(Helper.calculateMessageDigest(plane)); oldMessageDigest = Helper.bytesToHex(originalDigests[digestOffset]); assertEquals(getPlaneCheckErrStr(z, c, t), oldMessageDigest, newMessageDigest); } } } }
| 3,230,221
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public void testInitialPlane() throws IOException, DimensionsOutOfBoundsException { PixelsService service = PixelsService.getInstance(); PixelBuffer pixbuf = service.getPixelBuffer(pixels); MappedByteBuffer plane = pixbuf.getPlane(0, 0, 0); byte[] messageDigest = Helper.calculateMessageDigest(plane); assertEquals(Helper.bytesToHex(originalDigests[0]), Helper.bytesToHex(messageDigest)); }
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public void testInitialPlane() throws IOException, DimensionsOutOfBoundsException { PixelsService service = new PixelsService(PixelsService.ROOT_DEFAULT); PixelBuffer pixbuf = service.getPixelBuffer(pixels); MappedByteBuffer plane = pixbuf.getPlane(0, 0, 0); byte[] messageDigest = Helper.calculateMessageDigest(plane); assertEquals(Helper.bytesToHex(originalDigests[0]), Helper.bytesToHex(messageDigest)); }
| 3,230,222
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public void testLastPlane() throws IOException, DimensionsOutOfBoundsException { PixelsService service = PixelsService.getInstance(); PixelBuffer pixbuf = service.getPixelBuffer(pixels); MappedByteBuffer plane = pixbuf.getPlane(pixels.getSizeZ() - 1, pixels.getSizeC() - 1, pixels.getSizeT() - 1); int digestOffset = getDigestOffset(pixels.getSizeZ() - 1, pixels.getSizeC() - 1, pixels.getSizeT() - 1); byte[] messageDigest = Helper.calculateMessageDigest(plane); assertEquals(Helper.bytesToHex(originalDigests[digestOffset]), Helper.bytesToHex(messageDigest)); }
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public void testLastPlane() throws IOException, DimensionsOutOfBoundsException { PixelsService service = new PixelsService(PixelsService.ROOT_DEFAULT); PixelBuffer pixbuf = service.getPixelBuffer(pixels); MappedByteBuffer plane = pixbuf.getPlane(pixels.getSizeZ() - 1, pixels.getSizeC() - 1, pixels.getSizeT() - 1); int digestOffset = getDigestOffset(pixels.getSizeZ() - 1, pixels.getSizeC() - 1, pixels.getSizeT() - 1); byte[] messageDigest = Helper.calculateMessageDigest(plane); assertEquals(Helper.bytesToHex(originalDigests[digestOffset]), Helper.bytesToHex(messageDigest)); }
| 3,230,223
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protected Mock newMock(){ final Mock mock = mock(Session.class); iQuery.setHibernateTemplate(new HibernateTemplate(){ @Override protected Session getSession() { mock.setDefaultStub( new DefaultResultStub() ); // mock.expects( once() ).method( "close" ).after( "test" ); return (Session) mock.proxy(); } }); return mock; }
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protected Mock newMock(){ final Mock mock = mock(Session.class); impl.setHibernateTemplate(new HibernateTemplate(){ @Override protected Session getSession() { mock.setDefaultStub( new DefaultResultStub() ); // mock.expects( once() ).method( "close" ).after( "test" ); return (Session) mock.proxy(); } }); return mock; }
| 3,230,225
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protected void setUp() throws Exception { super.setUp(); iQuery = new QueryImpl(); mockSession = newMock(); }
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protected void setUp() throws Exception { super.setUp(); impl = new QueryImpl(); ProxyFactory pf = new ProxyFactory( impl ); pf.addAdvice( new ServiceHandler() ); iQuery = (IQuery) pf.getProxy(); mockSession = newMock(); }
| 3,230,226
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public void test_get_nulls() throws Exception { mockSession.expects( once() ).method( "load" ).id("test"); iQuery.get(null,1L); }
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public void test_get_nulls() throws Exception { iQuery.get(null,1L); }
| 3,230,227
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public void write(FastWriter out, Context context) throws PropertyException, IOException { Object l, limit, from; int loopLimit=-1, loopStart=1, loopIndex=0; l = list; while (l instanceof Macro) l = ((Macro) l).evaluate(context); if (limitExpr != null) { limit = limitExpr; while (limit instanceof Macro) limit = ((Macro) limit).evaluate(context); if (Expression.isNumber(limit)) loopLimit = (int) Expression.numberValue(limit); else { String warning = "#foreach: Cannot evaluate limit"; context.getLog("engine").warning(warning); writeWarning(warning, context, out); } } if (index != null && indexFromExpr != null) { from = indexFromExpr; while (from instanceof Macro) from = ((Macro) from).evaluate(context); if (Expression.isNumber(from)) loopStart = (int) Expression.numberValue(from); else { String warning = "#foreach: Cannot evaluate loop start"; context.getLog("engine").warning(warning); writeWarning(warning, context, out); } } Iterator iter; try { iter = context.getBroker()._propertyOperators.getIterator(l); } catch (Exception e) { String warning = "#foreach: list argument is not a list: " + l; context.getLog("engine").warning(warning + "; " + e); writeWarning(warning, context, out); return; } while(iter.hasNext() && ((loopLimit == -1) || (loopLimit > loopIndex))) { try { target.setValue(context, iter.next()); if (index != null) index.setValue(context, new Integer(loopIndex + loopStart)); } catch (PropertyException e) { String errorText = "#foreach: Unable to set list index"; context.getBroker().getLog("engine").error(errorText); writeWarning(errorText, context, out); } catch (Exception e) { throw new PropertyException ("Unable to iterate list", e); } body.write(out, context); ++loopIndex; } }
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public void write(FastWriter out, Context context) throws PropertyException, IOException { Object l, limit, from; int loopLimit=-1, loopStart=1, loopIndex=0; l = list; while (l instanceof Macro && l != UNDEF) l = ((Macro) l).evaluate(context); if (limitExpr != null) { limit = limitExpr; while (limit instanceof Macro) limit = ((Macro) limit).evaluate(context); if (Expression.isNumber(limit)) loopLimit = (int) Expression.numberValue(limit); else { String warning = "#foreach: Cannot evaluate limit"; context.getLog("engine").warning(warning); writeWarning(warning, context, out); } } if (index != null && indexFromExpr != null) { from = indexFromExpr; while (from instanceof Macro) from = ((Macro) from).evaluate(context); if (Expression.isNumber(from)) loopStart = (int) Expression.numberValue(from); else { String warning = "#foreach: Cannot evaluate loop start"; context.getLog("engine").warning(warning); writeWarning(warning, context, out); } } Iterator iter; try { iter = context.getBroker()._propertyOperators.getIterator(l); } catch (Exception e) { String warning = "#foreach: list argument is not a list: " + l; context.getLog("engine").warning(warning + "; " + e); writeWarning(warning, context, out); return; } while(iter.hasNext() && ((loopLimit == -1) || (loopLimit > loopIndex))) { try { target.setValue(context, iter.next()); if (index != null) index.setValue(context, new Integer(loopIndex + loopStart)); } catch (PropertyException e) { String errorText = "#foreach: Unable to set list index"; context.getBroker().getLog("engine").error(errorText); writeWarning(errorText, context, out); } catch (Exception e) { throw new PropertyException ("Unable to iterate list", e); } body.write(out, context); ++loopIndex; } }
| 3,230,228
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public NotVariableBuildException(String directive, Exception e) { super("#" + directive + ": Argument must be a variable", e); }
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public NotVariableBuildException(String directive, Exception e) { super("#" + directive + ": Argument must be a variable", e); }
| 3,230,229
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private void addContactItem(final ContactGroup contactGroup, final ContactItem item) { ContactItem newContact = new ContactItem(item.getNickname(), item.getFullJID()); newContact.setPresence(item.getPresence()); newContact.setIcon(item.getIcon()); newContact.getNicknameLabel().setFont(item.getNicknameLabel().getFont()); contactGroup.addContactItem(newContact); contactGroup.clearSelection(); final ContactGroup oldGroup = getContactGroup(item.getGroupName()); SwingWorker worker = new SwingWorker() { public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; } public void finished() { // Now try and remove the group from the old one. removeContactItem(oldGroup, item); } }; worker.start(); }
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private void addContactItem(final ContactGroup contactGroup, final ContactItem item) { ContactItem newContact = new ContactItem(item.getNickname(), item.getFullJID()); newContact.setPresence(item.getPresence()); newContact.setIcon(item.getIcon()); newContact.getNicknameLabel().setFont(item.getNicknameLabel().getFont()); contactGroup.addContactItem(newContact); contactGroup.clearSelection(); final ContactGroup oldGroup = getContactGroup(item.getGroupName()); SwingWorker worker = new SwingWorker() { public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for (RosterGroup group : roster.getGroups()) { if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; } public void finished() { // Now try and remove the group from the old one. removeContactItem(oldGroup, item); } }; worker.start(); }
| 3,230,230
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private void addContactItem(final ContactGroup contactGroup, final ContactItem item) { ContactItem newContact = new ContactItem(item.getNickname(), item.getFullJID()); newContact.setPresence(item.getPresence()); newContact.setIcon(item.getIcon()); newContact.getNicknameLabel().setFont(item.getNicknameLabel().getFont()); contactGroup.addContactItem(newContact); contactGroup.clearSelection(); final ContactGroup oldGroup = getContactGroup(item.getGroupName()); SwingWorker worker = new SwingWorker() { public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; } public void finished() { // Now try and remove the group from the old one. removeContactItem(oldGroup, item); } }; worker.start(); }
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private void addContactItem(final ContactGroup contactGroup, final ContactItem item) { ContactItem newContact = new ContactItem(item.getNickname(), item.getFullJID()); newContact.setPresence(item.getPresence()); newContact.setIcon(item.getIcon()); newContact.getNicknameLabel().setFont(item.getNicknameLabel().getFont()); contactGroup.addContactItem(newContact); contactGroup.clearSelection(); final ContactGroup oldGroup = getContactGroup(item.getGroupName()); SwingWorker worker = new SwingWorker() { public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return true; } public void finished() { // Now try and remove the group from the old one. removeContactItem(oldGroup, item); } }; worker.start(); }
| 3,230,231
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private void addContactItem(final ContactGroup contactGroup, final ContactItem item) { ContactItem newContact = new ContactItem(item.getNickname(), item.getFullJID()); newContact.setPresence(item.getPresence()); newContact.setIcon(item.getIcon()); newContact.getNicknameLabel().setFont(item.getNicknameLabel().getFont()); contactGroup.addContactItem(newContact); contactGroup.clearSelection(); final ContactGroup oldGroup = getContactGroup(item.getGroupName()); SwingWorker worker = new SwingWorker() { public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; } public void finished() { // Now try and remove the group from the old one. removeContactItem(oldGroup, item); } }; worker.start(); }
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private void addContactItem(final ContactGroup contactGroup, final ContactItem item) { ContactItem newContact = new ContactItem(item.getNickname(), item.getFullJID()); newContact.setPresence(item.getPresence()); newContact.setIcon(item.getIcon()); newContact.getNicknameLabel().setFont(item.getNicknameLabel().getFont()); contactGroup.addContactItem(newContact); contactGroup.clearSelection(); final ContactGroup oldGroup = getContactGroup(item.getGroupName()); SwingWorker worker = new SwingWorker() { public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; } public void finished() { // Now try and remove the group from the old one. if ((Boolean)get()) { removeContactItem(oldGroup, item); } } }; worker.start(); }
| 3,230,232
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public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; }
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public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for (RosterGroup group : roster.getGroups()) { if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; }
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public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return "ok"; }
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public Object construct() { Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup groupFound = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { groupFound = group; group.addEntry(entry); } catch (XMPPException e1) { Log.error(e1); } } } // This is a new group if (groupFound == null) { groupFound = roster.createGroup(contactGroup.getGroupName()); try { groupFound.addEntry(entry); } catch (XMPPException e) { Log.error(e); } } return true; }
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public void finished() { // Now try and remove the group from the old one. removeContactItem(oldGroup, item); }
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public void finished() { // Now try and remove the group from the old one. if ((Boolean)get()) { removeContactItem(oldGroup, item); } }
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public boolean removeContactItem(ContactGroup contactGroup, ContactItem item) { if (contactGroup.isSharedGroup()) { return false; } if (contactGroup.isUnfiledGroup()) { contactGroup.removeContactItem(item); contactGroup.fireContactGroupUpdated(); return true; } // Remove entry from Roster Group Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup rosterGroup = null; for(RosterGroup group : roster.getGroups()){ if (group.getName().equals(contactGroup.getGroupName())) { try { rosterGroup = group; group.removeEntry(entry); } catch (XMPPException e1) { return false; } } } if (rosterGroup == null) { return false; } if (!rosterGroup.contains(entry)) { contactGroup.removeContactItem(item); return true; } return false; }
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public boolean removeContactItem(ContactGroup contactGroup, ContactItem item) { if (contactGroup.isSharedGroup()) { return false; } if (contactGroup.isUnfiledGroup()) { contactGroup.removeContactItem(item); contactGroup.fireContactGroupUpdated(); return true; } // Remove entry from Roster Group Roster roster = SparkManager.getConnection().getRoster(); RosterEntry entry = roster.getEntry(item.getFullJID()); RosterGroup rosterGroup = null; for (RosterGroup group : roster.getGroups()) { if (group.getName().equals(contactGroup.getGroupName())) { try { rosterGroup = group; group.removeEntry(entry); } catch (XMPPException e1) { return false; } } } if (rosterGroup == null) { return false; } if (!rosterGroup.contains(entry)) { contactGroup.removeContactItem(item); return true; } return false; }
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private int getNumberToken(String number, boolean isFloat, char nondigit) { if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } if (isFloat) { Double d = new Double(0.0); try { d = Double.valueOf(number); } catch (NumberFormatException e) { warnings.warn(src.getPosition(), "Float " + number + " out of range."); if (number.startsWith("-")) { d = new Double(Double.NEGATIVE_INFINITY); } else { d = new Double(Double.POSITIVE_INFINITY); } } yaccValue = d; return Tokens.tFLOAT; } yaccValue = getInteger(number, 10); return Tokens.tINTEGER; }
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private int getNumberToken(String number, boolean isFloat, char nondigit) { if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } if (isFloat) { Double d = new Double(0.0); try { d = Double.valueOf(number); } catch (NumberFormatException e) { warnings.warn(src.getPosition(), "Float " + number + " out of range."); if (number.startsWith("-")) { d = new Double(Double.NEGATIVE_INFINITY); } else { d = new Double(Double.POSITIVE_INFINITY); } } yaccValue = new Token(d, getPosition(null, false)); return Tokens.tFLOAT; } yaccValue = getInteger(number, 10); return Tokens.tINTEGER; }
| 3,230,237
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private int getNumberToken(String number, boolean isFloat, char nondigit) { if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } if (isFloat) { Double d = new Double(0.0); try { d = Double.valueOf(number); } catch (NumberFormatException e) { warnings.warn(src.getPosition(), "Float " + number + " out of range."); if (number.startsWith("-")) { d = new Double(Double.NEGATIVE_INFINITY); } else { d = new Double(Double.POSITIVE_INFINITY); } } yaccValue = d; return Tokens.tFLOAT; } yaccValue = getInteger(number, 10); return Tokens.tINTEGER; }
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private int getNumberToken(String number, boolean isFloat, char nondigit) { if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } if (isFloat) { Double d = new Double(0.0); try { d = Double.valueOf(number); } catch (NumberFormatException e) { warnings.warn(src.getPosition(), "Float " + number + " out of range."); if (number.startsWith("-")) { d = new Double(Double.NEGATIVE_INFINITY); } else { d = new Double(Double.POSITIVE_INFINITY); } } yaccValue = d; return Tokens.tFLOAT; } yaccValue = getInteger(number, 10); return Tokens.tINTEGER; }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = new Token(getInteger(tokenBuffer.toString(), 16), getPosition(null, false)); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = new Token(getInteger(tokenBuffer.toString(), 2), getPosition(null, false)); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = new Token(getInteger(tokenBuffer.toString(), 2), getPosition(null, false)); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = new Token(getInteger(tokenBuffer.toString(), 2), getPosition(null, false)); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = new Token(getInteger(tokenBuffer.toString(), 2), getPosition(null, false)); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = new Token(getInteger(tokenBuffer.toString(), 8), getPosition(null, false)); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Token(new Long(0), getPosition(null, false)); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
| 3,230,243
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = getInteger(tokenBuffer.toString(), 10); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int parseNumber(char c) { lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); if (c == '-') { tokenBuffer.append(c); c = src.read(); } else if (c == '+') { // We don't append '+' since Java number parser gets confused c = src.read(); } char nondigit = '\0'; if (c == '0') { int startLen = tokenBuffer.length(); switch (c = src.read()) { case 'x' : case 'X' : // hexadecimal c = src.read(); if (isHexChar(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (isHexChar(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Hexadecimal number without hex-digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 16); return Tokens.tINTEGER; case 'b' : case 'B' : // binary c = src.read(); if (c == '0' || c == '1') { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c == '0' || c == '1') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case 'd' : case 'D' : // decimal c = src.read(); if (Character.isDigit(c)) { for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (Character.isDigit(c)) { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } } src.unread(c); if (tokenBuffer.length() == startLen) { throw new SyntaxException(src.getPosition(), "Binary number without digits."); } else if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 2); return Tokens.tINTEGER; case '0' : case '1' : case '2' : case '3' : case '4' : //Octal case '5' : case '6' : case '7' : case '_' : for (;; c = src.read()) { if (c == '_') { if (nondigit != '\0') { break; } nondigit = c; } else if (c >= '0' && c <= '7') { nondigit = '\0'; tokenBuffer.append(c); } else { break; } } if (tokenBuffer.length() > startLen) { src.unread(c); if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } yaccValue = getInteger(tokenBuffer.toString(), 8); return Tokens.tINTEGER; } case '8' : case '9' : throw new SyntaxException(src.getPosition(), "Illegal octal digit."); case '.' : case 'e' : case 'E' : tokenBuffer.append('0'); break; default : src.unread(c); yaccValue = new Long(0); return Tokens.tINTEGER; } } boolean seen_point = false; boolean seen_e = false; for (;; c = src.read()) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : nondigit = '\0'; tokenBuffer.append(c); break; case '.' : if (nondigit != '\0') { src.unread(c); throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_point || seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { char c2; if (!Character.isDigit(c2 = src.read())) { src.unread(c2); src.unread('.'); if (c == '_') { // Enebo: c can never be antrhign but '.' // Why did I put this here? } else { yaccValue = new Token(getInteger(tokenBuffer.toString(), 10), getPosition(null, false)); return Tokens.tINTEGER; } } else { tokenBuffer.append('.'); tokenBuffer.append(c2); seen_point = true; nondigit = '\0'; } } break; case 'e' : case 'E' : if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } else if (seen_e) { src.unread(c); return getNumberToken(tokenBuffer.toString(), true, nondigit); } else { tokenBuffer.append(c); seen_e = true; nondigit = c; c = src.read(); if (c == '-' || c == '+') { tokenBuffer.append(c); nondigit = c; } else { src.unread(c); } } break; case '_' : // '_' in number just ignored if (nondigit != '\0') { throw new SyntaxException(src.getPosition(), "Trailing '_' in number."); } nondigit = c; break; default : src.unread(c); return getNumberToken(tokenBuffer.toString(), seen_e || seen_point, nondigit); } } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = new Token("**", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = new Token("**", getPosition(null, false)); src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = new Token("*", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("*", getPosition(null, false)); return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = new Token("*", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("*", getPosition(null, false)); return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = new Token("===", getPosition(null, false)); return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = new Token("==", getPosition(null, false)); return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = new Token("=~", getPosition(null, false)); return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = new Token("<=>", getPosition(null, false)); return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = new Token("<", getPosition(null, false)); src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
| 3,230,256
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = new Token(">=", getPosition(null, false)); return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = new Token("`", getPosition(null, false)); if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Token(new Long(c), getPosition(null, false)); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = new Token("&&", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = new Token("&", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("&", getPosition(null, false)); return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = new Token("&", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("&", getPosition(null, false)); return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = new Token("||", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = new Token("|", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("|", getPosition(null, false)); src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = new Token("@+", getPosition(null, false)); return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = new Token("+", getPosition(null, false)); src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = new Token("+", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = new Token("@-", getPosition(null, false)); return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = new Token("-", getPosition(null, false)); src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = new Token("-", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = new Token("/", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("/", getPosition(null, false)); return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("~", getPosition(null, false)); return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = new Token("[]=", getPosition(null, false)); return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = new Token("[]", getPosition(null, false)); src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = new Token("%", getPosition(null, false)); lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = new Token("%", getPosition(null, false)); src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = new Token(tokenBuffer.toString(), getPosition(null, false)); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = new Token(tokenBuffer.toString(), getPosition(null, false)); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = new Token(tokenBuffer.toString(), getPosition(null, false)); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = new Token(tokenBuffer.toString(), getPosition(null, false)); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = new Token(tokenBuffer.toString(), getPosition(null, false)); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = new Token(tokenBuffer.toString(), getPosition(null, false)); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = keyword.name; } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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private int yylex() { char c; boolean spaceSeen = false; boolean commandState; if (lex_strterm != null) { int tok = lex_strterm.parseString(this, src); if (tok == Tokens.tSTRING_END || tok == Tokens.tREGEXP_END) { lex_strterm = null; lex_state = LexState.EXPR_END; } return tok; } currentPos = src.getPosition(); commandState = commandStart; commandStart = false; retry: for(;;) { c = src.read(); switch(c) { case '\004': /* ^D */ case '\032': /* ^Z */ case 0: /* end of script. */ return 0; /* white spaces */ case ' ': case '\t': case '\f': case '\r': case '\13': /* '\v' */ spaceSeen = true; continue retry; case '#': /* it's a comment */ while ((c = src.read()) != '\n') { if (c == EOF) { return 0; } } /* fall through */ case '\n': // Replace a string of newlines with a single one while((c = src.read()) == '\n') { currentPos = src.getPosition(); } src.unread( c ); if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_CLASS) { continue retry; } commandStart = true; lex_state = LexState.EXPR_BEG; return '\n'; case '*': if ((c = src.read()) == '*') { if ((c = src.read()) == '=') { yaccValue = "**"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } yaccValue = "**"; src.unread(c); c = Tokens.tPOW; } else { if (c == '=') { yaccValue = "*"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { warnings.warning(src.getPosition(), "`*' interpreted as argument prefix"); c = Tokens.tSTAR; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tSTAR; } else { c = Tokens.tSTAR2; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "*"; return c; case '!': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { return Tokens.tNEQ; } if (c == '~') { return Tokens.tNMATCH; } src.unread(c); return Tokens.tBANG; case '=': // Skip documentation nodes if (src.wasBeginOfLine()) { /* skip embedded rd document */ if (isNextNoCase("begin")) { c = src.read(); if (Character.isWhitespace(c)) { // In case last next was the newline. src.unread(c); for (;;) { c = src.read(); // If a line is followed by a blank line put // it back. while (c == '\n') { c = src.read(); } if (c == EOF) { throw new SyntaxException(src.getPosition(), "embedded document meets end of file"); } if (c != '=') continue; if (src.wasBeginOfLine() && isNextNoCase("end")) { //if (src.peek('\n')) { // break; //} //c = src.read(); //if (Character.isWhitespace(c)) { src.readLine(); break; //} //src.unread(c); } } continue retry; } src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } c = src.read(); if (c == '=') { c = src.read(); if (c == '=') { yaccValue = "==="; return Tokens.tEQQ; } src.unread(c); yaccValue = "=="; return Tokens.tEQ; } if (c == '~') { yaccValue = "=~"; return Tokens.tMATCH; } else if (c == '>') { return Tokens.tASSOC; } src.unread(c); return '='; case '<': c = src.read(); if (c == '<' && lex_state != LexState.EXPR_END && lex_state != LexState.EXPR_DOT && lex_state != LexState.EXPR_ENDARG && lex_state != LexState.EXPR_CLASS && (!lex_state.isArgument() || spaceSeen)) { int tok = hereDocumentIdentifier(); if (tok != 0) return tok; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if (c == '=') { if ((c = src.read()) == '>') { yaccValue = "<=>"; return Tokens.tCMP; } yaccValue = "<="; src.unread(c); return Tokens.tLEQ; } if (c == '<') { yaccValue = "<<"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tLSHFT; } yaccValue = "<"; src.unread(c); return Tokens.tLT; case '>': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } if ((c = src.read()) == '=') { yaccValue = ">="; return Tokens.tGEQ; } if (c == '>') { yaccValue = ">>"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tRSHFT; } yaccValue = ">"; src.unread(c); return Tokens.tGT; case '"': lex_strterm = new StringTerm(str_dquote, '"', '\0'); return Tokens.tSTRING_BEG; case '`': yaccValue = "`"; if (lex_state == LexState.EXPR_FNAME) { lex_state = LexState.EXPR_END; return Tokens.tBACK_REF2; } if (lex_state == LexState.EXPR_DOT) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } return Tokens.tBACK_REF2; } lex_strterm = new StringTerm(str_xquote, '`', '\0'); return Tokens.tXSTRING_BEG; case '\'': lex_strterm = new StringTerm(str_squote, '\'', '\0'); return Tokens.tSTRING_BEG; case '?': if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG) { lex_state = LexState.EXPR_BEG; return '?'; } c = src.read(); if (c == EOF) { throw new SyntaxException(src.getPosition(), "incomplete character syntax"); } if (Character.isWhitespace(c)){ if (!lex_state.isArgument()){ int c2 = 0; switch (c) { case ' ': c2 = 's'; break; case '\n': c2 = 'n'; break; case '\t': c2 = 't'; break; /* What is \v in C? case '\v': c2 = 'v'; break; */ case '\r': c2 = 'r'; break; case '\f': c2 = 'f'; break; } if (c2 != 0) { warnings.warn(src.getPosition(), "invalid character syntax; use ?\\" + c2); } } src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; /*} else if (ismbchar(c)) { // ruby - we don't support them either? rb_warn("multibyte character literal not supported yet; use ?\\" + c); support.unread(c); lexState = LexState.EXPR_BEG; return '?';*/ } else if ((Character.isLetterOrDigit(c) || c == '_') && !src.peek('\n') && isNext_identchar()) { src.unread(c); lex_state = LexState.EXPR_BEG; return '?'; } else if (c == '\\') { c = src.readEscape(); } c &= 0xff; lex_state = LexState.EXPR_END; yaccValue = new Long(c); return Tokens.tINTEGER; case '&': if ((c = src.read()) == '&') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "&&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tANDOP; } else if (c == '=') { yaccValue = "&"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)){ warnings.warning(src.getPosition(), "`&' interpreted as argument prefix"); c = Tokens.tAMPER; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tAMPER; } else { c = Tokens.tAMPER2; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "&"; return c; case '|': if ((c = src.read()) == '|') { lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '=') { yaccValue = "||"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); return Tokens.tOROP; } if (c == '=') { yaccValue = "|"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "|"; src.unread(c); return Tokens.tPIPE; case '+': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@+"; return Tokens.tUPLUS; } yaccValue = "+"; src.unread(c); return Tokens.tPLUS; } if (c == '=') { yaccValue = "+"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { c = '+'; return parseNumber(c); } return Tokens.tUPLUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tPLUS; case '-': c = src.read(); if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if (c == '@') { yaccValue = "@-"; return Tokens.tUMINUS; } yaccValue = "-"; src.unread(c); return Tokens.tMINUS; } if (c == '=') { yaccValue = "-"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c))) { if (lex_state.isArgument()) arg_ambiguous(); lex_state = LexState.EXPR_BEG; src.unread(c); if (Character.isDigit(c)) { return Tokens.tUMINUS_NUM; } return Tokens.tUMINUS; } lex_state = LexState.EXPR_BEG; src.unread(c); return Tokens.tMINUS; case '.': lex_state = LexState.EXPR_BEG; if ((c = src.read()) == '.') { if ((c = src.read()) == '.') { return Tokens.tDOT3; } src.unread(c); return Tokens.tDOT2; } src.unread(c); if (Character.isDigit(c)) { throw new SyntaxException(src.getPosition(), "no .<digit> floating literal anymore; put 0 before dot"); } lex_state = LexState.EXPR_DOT; return Tokens.tDOT; case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return parseNumber(c); case ']': case '}': case ')': conditionState.restart(); cmdArgumentState.restart(); lex_state = LexState.EXPR_END; return c; case ':': c = src.read(); if (c == ':') { if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_CLASS || (lex_state.isArgument() && spaceSeen)) { lex_state = LexState.EXPR_BEG; return Tokens.tCOLON3; } lex_state = LexState.EXPR_DOT; return Tokens.tCOLON2; } if (lex_state == LexState.EXPR_END || lex_state == LexState.EXPR_ENDARG || Character.isWhitespace(c)) { src.unread(c); lex_state = LexState.EXPR_BEG; return ':'; } switch (c) { case '\'': lex_strterm = new StringTerm(str_ssym, c, '\0'); break; case '"': lex_strterm = new StringTerm(str_dsym, c, '\0'); break; default: src.unread(c); break; } lex_state = LexState.EXPR_FNAME; return Tokens.tSYMBEG; case '/': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } if ((c = src.read()) == '=') { yaccValue = "/"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } src.unread(c); if (lex_state.isArgument() && spaceSeen) { if (!Character.isWhitespace(c)) { arg_ambiguous(); lex_strterm = new StringTerm(str_regexp, '/', '\0'); return Tokens.tREGEXP_BEG; } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "/"; return Tokens.tDIVIDE; case '^': yaccValue = "^"; if ((c = src.read()) == '=') { lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } src.unread(c); return Tokens.tCARET; case ';': commandStart = true; case ',': lex_state = LexState.EXPR_BEG; return c; case '~': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { if ((c = src.read()) != '@') { src.unread(c); } } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "~"; return Tokens.tTILDE; case '(': c = Tokens.tLPAREN2; commandStart = true; if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLPAREN; } else if (spaceSeen) { if (lex_state == LexState.EXPR_CMDARG) { c = Tokens.tLPAREN_ARG; } else if (lex_state == LexState.EXPR_ARG) { warnings.warn(src.getPosition(), "don't put space before argument parentheses"); c = Tokens.tLPAREN2; } } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '[': if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; if ((c = src.read()) == ']') { if ((c = src.read()) == '=') { yaccValue = "[]="; return Tokens.tASET; } yaccValue = "[]"; src.unread(c); return Tokens.tAREF; } src.unread(c); return '['; } else if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { c = Tokens.tLBRACK; } else if (lex_state.isArgument() && spaceSeen) { c = Tokens.tLBRACK; } lex_state = LexState.EXPR_BEG; conditionState.stop(); cmdArgumentState.stop(); return c; case '{': c = Tokens.tLCURLY; if (lex_state.isArgument() || lex_state == LexState.EXPR_END) { c = Tokens.tLCURLY; /* block (primary) */ } else if (lex_state == LexState.EXPR_ENDARG) { c = Tokens.tLBRACE_ARG; /* block (expr) */ } else { c = Tokens.tLBRACE; /* hash */ } conditionState.stop(); cmdArgumentState.stop(); lex_state = LexState.EXPR_BEG; return c; case '\\': c = src.read(); if (c == '\n') { spaceSeen = true; continue retry; /* skip \\n */ } src.unread(c); return '\\'; case '%': if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID) { return parseQuote(src.read()); } if ((c = src.read()) == '=') { yaccValue = "%"; lex_state = LexState.EXPR_BEG; return Tokens.tOP_ASGN; } if (lex_state.isArgument() && spaceSeen && !Character.isWhitespace(c)) { return parseQuote(c); } if (lex_state == LexState.EXPR_FNAME || lex_state == LexState.EXPR_DOT) { lex_state = LexState.EXPR_ARG; } else { lex_state = LexState.EXPR_BEG; } yaccValue = "%"; src.unread(c); return Tokens.tPERCENT; case '$': lex_state = LexState.EXPR_END; tokenBuffer.setLength(0); c = src.read(); switch (c) { case '_': /* $_: last read line string */ c = src.read(); if (isIdentifierChar(c)) { tokenBuffer.append('$'); tokenBuffer.append('_'); break; } src.unread(c); c = '_'; /* fall through */ case '*': /* $*: argv */ case '$': /* $$: pid */ case '?': /* $?: last status */ case '!': /* $!: error string */ case '@': /* $@: error position */ case '/': /* $/: input record separator */ case '\\': /* $\: output record separator */ case ';': /* $;: field separator */ case ',': /* $,: output field separator */ case '.': /* $.: last read line number */ case '=': /* $=: ignorecase */ case ':': /* $:: load path */ case '<': /* $<: reading filename */ case '>': /* $>: default output handle */ case '\"': /* $": already loaded files */ tokenBuffer.append('$'); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); return Tokens.tGVAR; case '-': tokenBuffer.append('$'); tokenBuffer.append(c); c = src.read(); tokenBuffer.append(c); yaccValue = tokenBuffer.toString(); /* xxx shouldn't check if valid option variable */ return Tokens.tGVAR; case '~': /* $~: match-data */ case '&': /* $&: last match */ case '`': /* $`: string before last match */ case '\'': /* $': string after last match */ case '+': /* $+: string matches last paren. */ yaccValue = new BackRefNode(src.getPosition(), c); return Tokens.tBACK_REF; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': tokenBuffer.append('$'); do { tokenBuffer.append(c); c = src.read(); } while (Character.isDigit(c)); src.unread(c); yaccValue = new NthRefNode(src.getPosition(), Integer.parseInt(tokenBuffer.substring(1))); return Tokens.tNTH_REF; default: if (!isIdentifierChar(c)) { src.unread(c); return '$'; } case '0': tokenBuffer.append('$'); } break; case '@': c = src.read(); tokenBuffer.setLength(0); tokenBuffer.append('@'); if (c == '@') { tokenBuffer.append('@'); c = src.read(); } if (Character.isDigit(c)) { if (tokenBuffer.length() == 1) { throw new SyntaxException(src.getPosition(), "`@" + c + "' is not allowed as an instance variable name"); } throw new SyntaxException(src.getPosition(), "`@@" + c + "' is not allowed as a class variable name"); } if (!isIdentifierChar(c)) { src.unread(c); return '@'; } break; case '_': if (src.wasBeginOfLine() && src.matchString("_END__\n", false)) { parserSupport.getResult().setEndSeen(true); return 0; } tokenBuffer.setLength(0); break; default: if (!isIdentifierChar(c)) { throw new SyntaxException(src.getPosition(), "Invalid char `\\" + new PrintfFormat("%.3o").sprintf(c) + "' in expression"); } tokenBuffer.setLength(0); break; } do { tokenBuffer.append(c); /* no special multibyte character handling is needed in Java * if (ismbchar(c)) { int i, len = mbclen(c)-1; for (i = 0; i < len; i++) { c = src.read(); tokenBuffer.append(c); } }*/ c = src.read(); } while (isIdentifierChar(c)); char peek = src.read(); if ((c == '!' || c == '?') && isIdentifierChar(tokenBuffer.charAt(0)) && peek != '=') { src.unread(peek); tokenBuffer.append(c); } else { src.unread(peek); src.unread(c); } int result = 0; switch (tokenBuffer.charAt(0)) { case '$': lex_state = LexState.EXPR_END; result = Tokens.tGVAR; break; case '@': lex_state = LexState.EXPR_END; if (tokenBuffer.charAt(1) == '@') { result = Tokens.tCVAR; } else { result = Tokens.tIVAR; } break; default: char last = tokenBuffer.charAt(tokenBuffer.length() - 1); if (last == '!' || last == '?') { result = Tokens.tFID; } else { if (lex_state == LexState.EXPR_FNAME) { /* // Enebo: This should be equivalent to below without // so much read/unread action. if ((c = src.read()) == '=') { char c2 = src.read(); if (c2 != '~' && c2 != '>' && (c2 != '=' || (c2 == '\n' && src.peek('>')))) { result = Token.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c2); src.unread(c); } } else { src.unread(c); } */ if ((c = src.read()) == '=' && !src.peek('~') && !src.peek('>') && (!src.peek('=') || (src.peek('\n') && src.getCharAt(1) == '>'))) { result = Tokens.tIDENTIFIER; tokenBuffer.append(c); } else { src.unread(c); } } if (result == 0 && ISUPPER(tokenBuffer.charAt(0))) { result = Tokens.tCONSTANT; } else { result = Tokens.tIDENTIFIER; } } if (lex_state != LexState.EXPR_DOT) { /* See if it is a reserved word. */ Keyword keyword = Keyword.getKeyword(tokenBuffer.toString(), tokenBuffer.length()); if (keyword != null) { // enum lex_state LexState state = lex_state; lex_state = keyword.state; if (state.isExprFName()) { yaccValue = new Token(keyword.name, getPosition(null, false)); } else { yaccValue = new Token(tokenBuffer.toString(), getPosition(null, false)); } if (keyword.id0 == Tokens.kDO) { if (conditionState.isInState()) { return Tokens.kDO_COND; } if (cmdArgumentState.isInState() && state != LexState.EXPR_CMDARG) { return Tokens.kDO_BLOCK; } if (state == LexState.EXPR_ENDARG) { return Tokens.kDO_BLOCK; } return Tokens.kDO; } if (state == LexState.EXPR_BEG) { return keyword.id0; } if (keyword.id0 != keyword.id1) { lex_state = LexState.EXPR_BEG; } return keyword.id1; } } if (lex_state == LexState.EXPR_BEG || lex_state == LexState.EXPR_MID || lex_state == LexState.EXPR_DOT || lex_state == LexState.EXPR_ARG || lex_state == LexState.EXPR_CMDARG) { if (commandState) { lex_state = LexState.EXPR_CMDARG; } else { lex_state = LexState.EXPR_ARG; } } else { lex_state = LexState.EXPR_END; } } yaccValue = tokenBuffer.toString(); // Lame: parsing logic made it into lexer in ruby...So we // are emulating if (IdUtil.isLocal((String)yaccValue) && ((((LocalNamesElement) parserSupport.getLocalNames().peek()).isInBlock() && ((BlockNamesElement) parserSupport.getBlockNames().peek()).isDefined((String) yaccValue)) || ((LocalNamesElement) parserSupport.getLocalNames().peek()).isLocalRegistered((String) yaccValue))) { lex_state = LexState.EXPR_END; } return result; } }
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public boolean isDefined(String name) { return blockNames != null ? blockNames.contains(name) : false || (next != null && next.isDefined(name)); }
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public boolean isDefined(String name) { return (blockNames != null ? blockNames.contains(name) : false) || (next != null && next.isDefined(name)); }
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public List transmute() { ome.model.ImagePixel oldPixels = (ome.model.ImagePixel) getModel(); List toSave = getToSave(); Event creationEvent = getCreationEvent(); // Transform the pixels set metadata Pixels p = new Pixels(); p.setCreationEvent(creationEvent); p.setSha1(oldPixels.getFileSha1()); p.setSizeX(oldPixels.getSizeX()); p.setSizeY(oldPixels.getSizeY()); p.setSizeZ(oldPixels.getSizeZ()); p.setSizeC(oldPixels.getSizeC()); p.setSizeT(oldPixels.getSizeT()); p.setBigEndian(false); // FIXME: This really shouldn't be here p.setOwner(getOwner()); // Transform the pixels set info PixelsTypeTrans ptransform = new PixelsTypeTrans(this, oldPixels); toSave = ptransform.transmute(); PixelsType pixelsType = (PixelsType) toSave.get(toSave.size() - 1); p.setPixelsType(pixelsType); // The pixels type doesn't actually need to be saved, as it is an // internal OMERO3 enumeration, so remove it from the list. toSave.remove(pixelsType); // Now transform all channel components of the given pixels set Set channelComponents = oldPixels.getChannelComponents(); Set channelList = new HashSet(); for (Object o : channelComponents) { ome.model.ChannelComponent c = (ome.model.ChannelComponent) o; ChannelTrans ctransform = new ChannelTrans(this, c); ctransform.setIndex(c.getIndex()); toSave = ctransform.transmute(); channelList.add(toSave.get(toSave.size() - 1)); } // Add the channels to the pixels set p.setChannels(channelList); // Build an acquisiton context from the logical channel ome.model.LogicalChannel lc = getFirstLogicalChannel(); AcquisitionContext ac = null; if (lc != null) { AcquisitionContextTrans actransform = new AcquisitionContextTrans(this, lc); toSave = actransform.transmute(); ac = (AcquisitionContext) toSave.get(toSave.size() - 1); } else ac = new AcquisitionContext(); toSave.add(ac); // Add the acquistion context to the pixels set p.setAcquisitionContext(ac); // Transform the PixelsDimensions and add them to the save list ome.model.ImageDimension imageD = (ome.model.ImageDimension) getModel(); PixelsDimensionsTrans pdtransform = new PixelsDimensionsTrans(this, imageD); toSave = pdtransform.transmute(); PixelsDimensions pixelsDimensions = (PixelsDimensions) toSave.get(toSave.size() - 1); p.setPixelsDimensions(pixelsDimensions); // Finish up by adding this object to the toSave list and returning toSave.add(p); return toSave; }
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public List transmute() { ome.model.ImagePixel oldPixels = (ome.model.ImagePixel) getModel(); List toSave = getToSave(); Event creationEvent = getCreationEvent(); // Transform the pixels set metadata Pixels p = new Pixels(); p.setCreationEvent(creationEvent); p.setSha1(oldPixels.getFileSha1()); p.setSizeX(oldPixels.getSizeX()); p.setSizeY(oldPixels.getSizeY()); p.setSizeZ(oldPixels.getSizeZ()); p.setSizeC(oldPixels.getSizeC()); p.setSizeT(oldPixels.getSizeT()); p.setBigEndian(false); // FIXME: This really shouldn't be here p.setOwner(getOwner()); // Transform the pixels set info PixelsTypeTrans ptransform = new PixelsTypeTrans(this, oldPixels); toSave = ptransform.transmute(); PixelsType pixelsType = (PixelsType) toSave.get(toSave.size() - 1); p.setPixelsType(pixelsType); // The pixels type doesn't actually need to be saved, as it is an // internal OMERO3 enumeration, so remove it from the list. toSave.remove(pixelsType); // Now transform all channel components of the given pixels set Set channelComponents = oldPixels.getChannelComponents(); Set channelList = new HashSet(); for (Object o : channelComponents) { ome.model.ChannelComponent c = (ome.model.ChannelComponent) o; ChannelTrans ctransform = new ChannelTrans(this, c); ctransform.setIndex(c.getIndex()); toSave = ctransform.transmute(); channelList.add(toSave.get(toSave.size() - 1)); } // Add the channels to the pixels set p.setChannels(channelList); // Build an acquisiton context from the logical channel ome.model.LogicalChannel lc = getFirstLogicalChannel(); AcquisitionContext ac = null; if (lc != null) { AcquisitionContextTrans actransform = new AcquisitionContextTrans(this, lc); toSave = actransform.transmute(); ac = (AcquisitionContext) toSave.get(toSave.size() - 1); } else ac = new AcquisitionContext(); toSave.add(ac); // Add the acquistion context to the pixels set p.setAcquisitionContext(ac); // Transform the PixelsDimensions and add them to the save list ome.model.ImageDimension imageD = (ome.model.ImageDimension) getModel(); PixelsDimensionsTrans pdtransform = new PixelsDimensionsTrans(this, imageD); toSave = pdtransform.transmute(); PixelsDimensions pixelsDimensions = (PixelsDimensions) toSave.get(toSave.size() - 1); p.setPixelsDimensions(pixelsDimensions); // Finish up by adding this object to the toSave list and returning toSave.add(p); return toSave; }
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public List transmute() { ome.model.ImagePixel oldPixels = (ome.model.ImagePixel) getModel(); List toSave = getToSave(); Event creationEvent = getCreationEvent(); // Transform the pixels set metadata Pixels p = new Pixels(); p.setCreationEvent(creationEvent); p.setSha1(oldPixels.getFileSha1()); p.setSizeX(oldPixels.getSizeX()); p.setSizeY(oldPixels.getSizeY()); p.setSizeZ(oldPixels.getSizeZ()); p.setSizeC(oldPixels.getSizeC()); p.setSizeT(oldPixels.getSizeT()); p.setBigEndian(false); // FIXME: This really shouldn't be here p.setOwner(getOwner()); // Transform the pixels set info PixelsTypeTrans ptransform = new PixelsTypeTrans(this, oldPixels); toSave = ptransform.transmute(); PixelsType pixelsType = (PixelsType) toSave.get(toSave.size() - 1); p.setPixelsType(pixelsType); // The pixels type doesn't actually need to be saved, as it is an // internal OMERO3 enumeration, so remove it from the list. toSave.remove(pixelsType); // Now transform all channel components of the given pixels set Set channelComponents = oldPixels.getChannelComponents(); Set channelList = new HashSet(); for (Object o : channelComponents) { ome.model.ChannelComponent c = (ome.model.ChannelComponent) o; ChannelTrans ctransform = new ChannelTrans(this, c); ctransform.setIndex(c.getIndex()); toSave = ctransform.transmute(); channelList.add(toSave.get(toSave.size() - 1)); } // Add the channels to the pixels set p.setChannels(channelList); // Build an acquisiton context from the logical channel ome.model.LogicalChannel lc = getFirstLogicalChannel(); AcquisitionContext ac = null; if (lc != null) { AcquisitionContextTrans actransform = new AcquisitionContextTrans(this, lc); toSave = actransform.transmute(); ac = (AcquisitionContext) toSave.get(toSave.size() - 1); } else ac = new AcquisitionContext(); toSave.add(ac); // Add the acquistion context to the pixels set p.setAcquisitionContext(ac); // Transform the PixelsDimensions and add them to the save list ome.model.ImageDimension imageD = (ome.model.ImageDimension) getModel(); PixelsDimensionsTrans pdtransform = new PixelsDimensionsTrans(this, imageD); toSave = pdtransform.transmute(); PixelsDimensions pixelsDimensions = (PixelsDimensions) toSave.get(toSave.size() - 1); p.setPixelsDimensions(pixelsDimensions); // Finish up by adding this object to the toSave list and returning toSave.add(p); return toSave; }
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public List transmute() { ome.model.ImagePixel oldPixels = (ome.model.ImagePixel) getModel(); List toSave = getToSave(); Event creationEvent = getCreationEvent(); // Transform the pixels set metadata Pixels p = new Pixels(); p.setCreationEvent(creationEvent); p.setSha1(oldPixels.getFileSha1()); p.setSizeX(oldPixels.getSizeX()); p.setSizeY(oldPixels.getSizeY()); p.setSizeZ(oldPixels.getSizeZ()); p.setSizeC(oldPixels.getSizeC()); p.setSizeT(oldPixels.getSizeT()); p.setBigEndian(false); // FIXME: This really shouldn't be here p.setOwner(getOwner()); // Transform the pixels set info PixelsTypeTrans ptransform = new PixelsTypeTrans(this, oldPixels); toSave = ptransform.transmute(); PixelsType pixelsType = (PixelsType) toSave.get(toSave.size() - 1); p.setPixelsType(pixelsType); // The pixels type doesn't actually need to be saved, as it is an // internal OMERO3 enumeration, so remove it from the list. toSave.remove(pixelsType); // Now transform all channel components of the given pixels set Set channelComponents = oldPixels.getChannelComponents(); Set channelList = new HashSet(); for (Object o : channelComponents) { ome.model.ChannelComponent c = (ome.model.ChannelComponent) o; ChannelTrans ctransform = new ChannelTrans(this, c); ctransform.setIndex(c.getIndex()); toSave = ctransform.transmute(); channelList.add(toSave.get(toSave.size() - 1)); } // Add the channels to the pixels set p.setChannels(channelList); // Build an acquisiton context from the logical channel ome.model.LogicalChannel lc = getFirstLogicalChannel(); AcquisitionContext ac = null; if (lc != null) { AcquisitionContextTrans actransform = new AcquisitionContextTrans(this, lc); toSave = actransform.transmute(); ac = (AcquisitionContext) toSave.get(toSave.size() - 1); } else ac = new AcquisitionContext(); toSave.add(ac); // Add the acquistion context to the pixels set p.setAcquisitionContext(ac); // Transform the PixelsDimensions and add them to the save list ome.model.ImageDimension imageD = (ome.model.ImageDimension) getModel(); PixelsDimensionsTrans pdtransform = new PixelsDimensionsTrans(this, imageD); toSave = pdtransform.transmute(); PixelsDimensions pixelsDimensions = (PixelsDimensions) toSave.get(toSave.size() - 1); p.setPixelsDimensions(pixelsDimensions); // Finish up by adding this object to the toSave list and returning toSave.add(p); return toSave; }
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public PixelsDimensionsTrans(Transformer transformer, Object model) { super(model, transformer.getSession(), transformer.getOwner(), transformer.getCreationEvent(), transformer.getToSave()); }
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public PixelsDimensionsTrans(Object model, Session session, Experimenter owner, Event creationEvent, List toSave) { super(model, transformer.getSession(), transformer.getOwner(), transformer.getCreationEvent(), transformer.getToSave()); }
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public PixelsDimensionsTrans(Transformer transformer, Object model) { super(model, transformer.getSession(), transformer.getOwner(), transformer.getCreationEvent(), transformer.getToSave()); }
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public PixelsDimensionsTrans(Transformer transformer, Object model) { super(model, transformer.getSession(), transformer.getOwner(), transformer.getCreationEvent(), transformer.getToSave()); }
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public List transmute() { List toSave = getToSave(); Event creationEvent = getCreationEvent(); ome.model.ImageDimension oldDimensions = (ome.model.ImageDimension) getModel(); PixelsDimensions p = new PixelsDimensions(); p.setOwner(getOwner()); p.setCreationEvent(creationEvent); p.setSizeX(oldDimensions.getPixelSizeX()); p.setSizeY(oldDimensions.getPixelSizeY()); p.setSizeZ(oldDimensions.getPixelSizeZ()); toSave.add(p); return toSave; }
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public List transmute() { List toSave = getToSave(); Event creationEvent = getCreationEvent(); ome.model.ImageDimension oldDimensions = (ome.model.ImageDimension) getModel(); PixelsDimensions p = new PixelsDimensions(); p.setOwner(getOwner()); p.setCreationEvent(creationEvent); p.setSizeX(oldDimensions.getPixelSizeX()); p.setSizeY(oldDimensions.getPixelSizeY()); p.setSizeZ(oldDimensions.getPixelSizeZ()); toSave.add(p); return toSave; }
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private void checkNotificationPreferences(final ChatRoom room) { LocalPreferences pref = SettingsManager.getLocalPreferences(); if (pref.getWindowTakesFocus()) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } if (pref.getShowToasterPopup()) { SparkToaster toaster = new SparkToaster(); toaster.setCustomAction(new AbstractAction() { public void actionPerformed(ActionEvent actionEvent) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } }); toaster.setDisplayTime(5000); toaster.setBorder(BorderFactory.createBevelBorder(0)); String nickname = ((ChatRoomImpl)room).getParticipantNickname(); toaster.setTitle(nickname); toaster.setToasterHeight(150); toaster.setToasterWidth(200); int size = room.getTranscripts().size(); Message message = (Message)room.getTranscripts().get(size - 1); toaster.showToaster(room.getTabIcon(), message.getBody()); } }
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private void checkNotificationPreferences(final ChatRoom room) { LocalPreferences pref = SettingsManager.getLocalPreferences(); if (pref.getWindowTakesFocus()) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } if (pref.getShowToasterPopup()) { SparkToaster toaster = new SparkToaster(); toaster.setCustomAction(new AbstractAction() { public void actionPerformed(ActionEvent actionEvent) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } }); toaster.setDisplayTime(5000); toaster.setBorder(BorderFactory.createBevelBorder(0)); String nickname = ((ChatRoomImpl)room).getParticipantNickname(); toaster.setTitle(nickname); toaster.setToasterHeight(150); toaster.setToasterWidth(200); int size = room.getTranscripts().size(); if (size > 0) { Message message = (Message)room.getTranscripts().get(size - 1); toaster.showToaster(room.getTabIcon(), message.getBody()); } }
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private void checkNotificationPreferences(final ChatRoom room) { LocalPreferences pref = SettingsManager.getLocalPreferences(); if (pref.getWindowTakesFocus()) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } if (pref.getShowToasterPopup()) { SparkToaster toaster = new SparkToaster(); toaster.setCustomAction(new AbstractAction() { public void actionPerformed(ActionEvent actionEvent) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } }); toaster.setDisplayTime(5000); toaster.setBorder(BorderFactory.createBevelBorder(0)); String nickname = ((ChatRoomImpl)room).getParticipantNickname(); toaster.setTitle(nickname); toaster.setToasterHeight(150); toaster.setToasterWidth(200); int size = room.getTranscripts().size(); Message message = (Message)room.getTranscripts().get(size - 1); toaster.showToaster(room.getTabIcon(), message.getBody()); } }
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private void checkNotificationPreferences(final ChatRoom room) { LocalPreferences pref = SettingsManager.getLocalPreferences(); if (pref.getWindowTakesFocus()) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } if (pref.getShowToasterPopup()) { SparkToaster toaster = new SparkToaster(); toaster.setCustomAction(new AbstractAction() { public void actionPerformed(ActionEvent actionEvent) { chatFrame.setState(Frame.NORMAL); chatFrame.setVisible(true); int tabLocation = indexOfComponent(room); setSelectedIndex(tabLocation); } }); toaster.setDisplayTime(5000); toaster.setBorder(BorderFactory.createBevelBorder(0)); String nickname = ((ChatRoomImpl)room).getParticipantNickname(); toaster.setTitle(nickname); toaster.setToasterHeight(150); toaster.setToasterWidth(200); int size = room.getTranscripts().size(); Message message = (Message)room.getTranscripts().get(size - 1); toaster.showToaster(room.getTabIcon(), message.getBody()); } } }
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public static RubyClass createDirClass(Ruby ruby) { RubyClass dirClass = ruby.defineClass("Dir", ruby.getClasses().getObjectClass()); dirClass.includeModule(ruby.getRubyModule("Enumerable")); dirClass.defineSingletonMethod("glob", CallbackFactory.getSingletonMethod(RubyDir.class, "glob", RubyString.class)); dirClass.defineSingletonMethod("[]", CallbackFactory.getSingletonMethod(RubyDir.class, "glob", RubyString.class)); // dirClass.defineAlias("[]", "glob"); dirClass.defineSingletonMethod("chdir", CallbackFactory.getSingletonMethod(RubyDir.class, "chdir", RubyString.class)); dirClass.defineSingletonMethod("chroot", CallbackFactory.getSingletonMethod(RubyDir.class, "chroot", RubyString.class)); dirClass.defineSingletonMethod("delete", CallbackFactory.getSingletonMethod(RubyDir.class, "delete", RubyString.class)); dirClass.defineSingletonMethod("entries", CallbackFactory.getSingletonMethod(RubyDir.class, "entries", RubyString.class)); dirClass.defineSingletonMethod("foreach", CallbackFactory.getBlockMethod(RubyDir.class, "foreach")); dirClass.defineSingletonMethod("getwd", CallbackFactory.getSingletonMethod(RubyDir.class, "getwd", RubyString.class)); dirClass.defineSingletonMethod("pwd", CallbackFactory.getSingletonMethod(RubyDir.class, "getwd", RubyString.class)); // dirClass.defineAlias("pwd", "getwd"); dirClass.defineSingletonMethod("mkdir", CallbackFactory.getOptSingletonMethod(RubyDir.class, "mkdir", RubyString.class)); dirClass.defineSingletonMethod("open", CallbackFactory.getOptSingletonMethod(RubyDir.class, "open", RubyString.class)); dirClass.defineSingletonMethod("rmdir", CallbackFactory.getSingletonMethod(RubyDir.class, "rmdir", RubyString.class)); dirClass.defineSingletonMethod("unlink", CallbackFactory.getSingletonMethod(RubyDir.class, "rmdir", RubyString.class)); dirClass.defineSingletonMethod("delete", CallbackFactory.getSingletonMethod(RubyDir.class, "rmdir", RubyString.class)); // dirClass.defineAlias("unlink", "rmdir"); // dirClass.defineAlias("delete", "rmdir"); dirClass.defineMethod("close", CallbackFactory.getMethod(RubyDir.class, "close")); dirClass.defineMethod("each", CallbackFactory.getOptMethod(RubyDir.class, "each")); dirClass.defineMethod("tell", CallbackFactory.getMethod(RubyDir.class, "tell")); dirClass.defineAlias("pos", "tell"); dirClass.defineMethod("seek", CallbackFactory.getMethod(RubyDir.class, "seek", RubyInteger.class)); dirClass.defineAlias("pos=", "seek"); dirClass.defineMethod("read", CallbackFactory.getMethod(RubyDir.class, "read")); dirClass.defineMethod("rewind", CallbackFactory.getMethod(RubyDir.class, "rewind")); return dirClass; }
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public static RubyClass createDirClass(Ruby ruby) { RubyClass dirClass = ruby.defineClass("Dir", ruby.getClasses().getObjectClass()); dirClass.includeModule(ruby.getRubyModule("Enumerable")); dirClass.defineSingletonMethod("glob", CallbackFactory.getSingletonMethod(RubyDir.class, "glob", RubyString.class)); dirClass.defineSingletonMethod("[]", CallbackFactory.getSingletonMethod(RubyDir.class, "glob", RubyString.class)); // dirClass.defineAlias("[]", "glob"); dirClass.defineSingletonMethod("chdir", CallbackFactory.getSingletonMethod(RubyDir.class, "chdir", RubyString.class)); dirClass.defineSingletonMethod("chroot", CallbackFactory.getSingletonMethod(RubyDir.class, "chroot", RubyString.class)); dirClass.defineSingletonMethod("delete", CallbackFactory.getSingletonMethod(RubyDir.class, "delete", RubyString.class)); dirClass.defineSingletonMethod("entries", CallbackFactory.getSingletonMethod(RubyDir.class, "entries", RubyString.class)); dirClass.defineSingletonMethod("foreach", CallbackFactory.getBlockMethod(RubyDir.class, "foreach")); dirClass.defineSingletonMethod("getwd", CallbackFactory.getSingletonMethod(RubyDir.class, "getwd", RubyString.class)); dirClass.defineSingletonMethod("pwd", CallbackFactory.getSingletonMethod(RubyDir.class, "getwd", RubyString.class)); // dirClass.defineAlias("pwd", "getwd"); dirClass.defineSingletonMethod("mkdir", CallbackFactory.getOptSingletonMethod(RubyDir.class, "mkdir", RubyString.class)); dirClass.defineSingletonMethod("open", CallbackFactory.getOptSingletonMethod(RubyDir.class, "open", RubyString.class)); dirClass.defineSingletonMethod("rmdir", CallbackFactory.getSingletonMethod(RubyDir.class, "rmdir", RubyString.class)); dirClass.defineSingletonMethod("unlink", CallbackFactory.getSingletonMethod(RubyDir.class, "rmdir", RubyString.class)); dirClass.defineSingletonMethod("delete", CallbackFactory.getSingletonMethod(RubyDir.class, "rmdir", RubyString.class)); // dirClass.defineAlias("unlink", "rmdir"); // dirClass.defineAlias("delete", "rmdir"); dirClass.defineMethod("close", CallbackFactory.getMethod(RubyDir.class, "close")); dirClass.defineMethod("each", CallbackFactory.getOptMethod(RubyDir.class, "each")); dirClass.defineMethod("tell", CallbackFactory.getMethod(RubyDir.class, "tell")); dirClass.defineAlias("pos", "tell"); dirClass.defineMethod("seek", CallbackFactory.getMethod(RubyDir.class, "seek", RubyInteger.class)); dirClass.defineAlias("pos=", "seek"); dirClass.defineMethod("read", CallbackFactory.getMethod(RubyDir.class, "read")); dirClass.defineMethod("rewind", CallbackFactory.getMethod(RubyDir.class, "rewind")); return dirClass; }
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public RubyArray(Ruby ruby, List array) { this(ruby, new ArrayList(array), false); }
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public RubyArray(Ruby ruby, List array) { this(ruby, new ArrayList(array), false); }
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public IRubyObject newInstance(IRubyObject[] args) { if (isSingleton()) { throw new TypeError(getRuntime(), "can't create instance of virtual class"); } RubyObject obj = new RubyObject(getRuntime(), this); obj.callInit(args); return obj; }
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public IRubyObject newInstance(IRubyObject[] args) { if (isSingleton()) { throw new TypeError(getRuntime(), "can't create instance of virtual class"); } IRubyObject obj = getRuntime().getFactory().newObject(this); obj.callInit(args); return obj; }
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ViewerUIF(ViewerCtrl control, Registry registry, PixelsDimensions pxsDims, int defaultT, int defaultZ) { super("", registry.getTaskBar()); active = false; this.control = control; im = IconManager.getInstance(registry); int maxT = pxsDims.sizeT-1; int maxZ = pxsDims.sizeZ-1; setJMenuBar(createMenuBar(maxZ, maxT)); toolBar = new ToolBar(control, registry, maxT, defaultT, maxZ, defaultZ); initSliders(maxT, defaultT, maxZ, defaultZ); buildGUI(); }
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ViewerUIF(ViewerCtrl control, Registry registry, PixelsDimensions pxsDims, int defaultT, int defaultZ) { super("", registry.getTaskBar()); active = false; this.control = control; im = IconManager.getInstance(registry); int maxT = pxsDims.sizeT-1; int maxZ = pxsDims.sizeZ-1; setJMenuBar(createMenuBar(maxZ, maxT)); toolBar = new ToolBar(control, registry, maxT, defaultT, maxZ, defaultZ); initSliders(maxT, defaultT, maxZ, defaultZ); buildGUI(); }
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private void buildGUI() { Container container = getContentPane(); layer = new JLayeredPane(); canvas = new ImageCanvas(this); layer.add(canvas, new Integer(0)); scrollPane = new JScrollPane(layer); container.add(toolBar, BorderLayout.NORTH); container.add(buildMain(), BorderLayout.WEST); container.add(scrollPane, BorderLayout.CENTER); //Configure the display buttons in the TaskBar. configureDisplayButtons(); }
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private void buildGUI() { Container container = getContentPane(); layer = new JLayeredPane(); canvas = new ImageCanvas(this); layer.add(canvas, new Integer(0)); scrollPane = new JScrollPane(layer); container.add(toolBar, BorderLayout.NORTH); container.add(buildMain(), BorderLayout.WEST); container.add(scrollPane, BorderLayout.CENTER); //Configure the display buttons in the TaskBar. configureDisplayButtons(); }
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private void buildGUI() { Container container = getContentPane(); layer = new JLayeredPane(); canvas = new ImageCanvas(this); layer.add(canvas, new Integer(0)); scrollPane = new JScrollPane(layer); container.add(toolBar, BorderLayout.NORTH); container.add(buildMain(), BorderLayout.WEST); container.add(scrollPane, BorderLayout.CENTER); //Configure the display buttons in the TaskBar. configureDisplayButtons(); }
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private void buildGUI() { Container container = getContentPane(); layer = new JLayeredPane(); canvas = new ImageCanvas(this); layer.add(canvas, new Integer(0)); scrollPane = new JScrollPane(layer); container.add(toolBar, BorderLayout.NORTH); container.add(buildMain(), BorderLayout.WEST); container.add(scrollPane, BorderLayout.CENTER); //Configure the display buttons in the TaskBar. configureDisplayButtons(); }
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private void buildGUI() { Container container = getContentPane(); layer = new JLayeredPane(); canvas = new ImageCanvas(this); layer.add(canvas, new Integer(0)); scrollPane = new JScrollPane(layer); container.add(toolBar, BorderLayout.NORTH); container.add(buildMain(), BorderLayout.WEST); container.add(scrollPane, BorderLayout.CENTER); //Configure the display buttons in the TaskBar. configureDisplayButtons(); }
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private void buildGUI() { Container container = getContentPane(); layer = new JLayeredPane(); canvas = new ImageCanvas(this); layer.add(canvas, new Integer(0)); scrollPane = new JScrollPane(layer); container.add(toolBar, BorderLayout.NORTH); container.add(buildMain(), BorderLayout.WEST); container.add(scrollPane, BorderLayout.CENTER); //Configure the display buttons in the TaskBar. configureDisplayButtons(); }
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private JPanel buildMain() { JPanel p = new JPanel(); p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS)); //z-slider JLabel label = new JLabel("Z "); JPanel pz = new JPanel(); pz.setLayout(new BoxLayout(pz, BoxLayout.Y_AXIS)); pz.add(label); pz.add(zSlider); //t-slider label = new JLabel("T "); JPanel pt = new JPanel(); pt.setLayout(new BoxLayout(pt, BoxLayout.Y_AXIS)); pt.add(label); pt.add(tSlider); p.add(pz); p.add(pt); return p; }
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private JPanel buildMain() { JPanel p = new JPanel(); p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS)); //z-slider JLabel label = new JLabel("Z "); JPanel pz = new JPanel(); pz.setLayout(new BoxLayout(pz, BoxLayout.Y_AXIS)); pz.add(label); pz.add(zSlider); //t-slider label = new JLabel("T "); JPanel pt = new JPanel(); pt.setLayout(new BoxLayout(pt, BoxLayout.Y_AXIS)); pt.add(label); pt.add(tSlider); p.add(pz); p.add(pt); return p; }
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private JPanel buildMain() { JPanel p = new JPanel(); p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS)); //z-slider JLabel label = new JLabel("Z "); JPanel pz = new JPanel(); pz.setLayout(new BoxLayout(pz, BoxLayout.Y_AXIS)); pz.add(label); pz.add(zSlider); //t-slider label = new JLabel("T "); JPanel pt = new JPanel(); pt.setLayout(new BoxLayout(pt, BoxLayout.Y_AXIS)); pt.add(label); pt.add(tSlider); p.add(pz); p.add(pt); return p; }
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private JPanel buildMain() { JPanel p = new JPanel(); p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS)); //z-slider JLabel label = new JLabel("Z "); JPanel pz = new JPanel(); pz.setLayout(new BoxLayout(pz, BoxLayout.Y_AXIS)); pz.add(label); pz.add(zSlider); //t-slider label = new JLabel("T "); JPanel pt = new JPanel(); pt.setLayout(new BoxLayout(pt, BoxLayout.Y_AXIS)); pt.add(label); pt.add(tSlider); p.add(pz); p.add(pt); return p; }
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private void configureDisplayButtons() { configureQuickLaunchBtn(im.getIcon(IconManager.VIEWER), "Bring up the Viewer."); configureWinMenuEntry("Viewer ", im.getIcon(IconManager.VIEWER)); }
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private void configureDisplayButtons() { configureQuickLaunchBtn(im.getIcon(IconManager.VIEWER), "Bring up the Viewer."); configureWinMenuEntry("Viewer ", im.getIcon(IconManager.VIEWER)); }
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private JMenu createControlsMenu(int maxZ, int maxT) { JMenu menu = new JMenu("Controls"); JMenuItem menuItem = new JMenuItem("Rendering", im.getIcon(IconManager.RENDER)); control.attachItemListener(menuItem, ViewerCtrl.RENDERING); menu.add(menuItem); menuItem = new JMenuItem("Inspector", im.getIcon(IconManager.INSPECTOR)); control.attachItemListener(menuItem, ViewerCtrl.INSPECTOR); menu.add(menuItem); viewer3DItem = new JMenuItem("3D view", im.getIcon(IconManager.VIEWER3D)); control.attachItemListener(viewer3DItem, ViewerCtrl.VIEWER3D); viewer3DItem.setEnabled(maxZ != 0); menu.add(viewer3DItem); movieItem = new JMenuItem("Movie", im.getIcon(IconManager.MOVIE)); control.attachItemListener(menuItem, ViewerCtrl.MOVIE); menu.add(movieItem); menuItem = new JMenuItem("SAVE AS...", im.getIcon(IconManager.SAVEAS)); control.attachItemListener(menuItem, ViewerCtrl.SAVE_AS); menu.add(menuItem); if (maxT == 0 && maxZ == 0) movieItem.setEnabled(false); return menu; }
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private JMenu createControlsMenu(int maxZ, int maxT) { JMenu menu = new JMenu("Controls"); JMenuItem menuItem = new JMenuItem("Rendering", im.getIcon(IconManager.RENDER)); control.attachItemListener(menuItem, ViewerCtrl.RENDERING); menu.add(menuItem); menuItem = new JMenuItem("Inspector", im.getIcon(IconManager.INSPECTOR)); control.attachItemListener(menuItem, ViewerCtrl.INSPECTOR); menu.add(menuItem); viewer3DItem = new JMenuItem("3D view", im.getIcon(IconManager.VIEWER3D)); control.attachItemListener(viewer3DItem, ViewerCtrl.VIEWER3D); viewer3DItem.setEnabled(maxZ != 0); menu.add(viewer3DItem); movieItem = new JMenuItem("Movie", im.getIcon(IconManager.MOVIE)); control.attachItemListener(menuItem, ViewerCtrl.MOVIE); menu.add(movieItem); menuItem = new JMenuItem("SAVE AS...", im.getIcon(IconManager.SAVEAS)); control.attachItemListener(menuItem, ViewerCtrl.SAVE_AS); menu.add(menuItem); if (maxT == 0 && maxZ == 0) movieItem.setEnabled(false); return menu; }
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private JMenu createControlsMenu(int maxZ, int maxT) { JMenu menu = new JMenu("Controls"); JMenuItem menuItem = new JMenuItem("Rendering", im.getIcon(IconManager.RENDER)); control.attachItemListener(menuItem, ViewerCtrl.RENDERING); menu.add(menuItem); menuItem = new JMenuItem("Inspector", im.getIcon(IconManager.INSPECTOR)); control.attachItemListener(menuItem, ViewerCtrl.INSPECTOR); menu.add(menuItem); viewer3DItem = new JMenuItem("3D view", im.getIcon(IconManager.VIEWER3D)); control.attachItemListener(viewer3DItem, ViewerCtrl.VIEWER3D); viewer3DItem.setEnabled(maxZ != 0); menu.add(viewer3DItem); movieItem = new JMenuItem("Movie", im.getIcon(IconManager.MOVIE)); control.attachItemListener(menuItem, ViewerCtrl.MOVIE); menu.add(movieItem); menuItem = new JMenuItem("SAVE AS...", im.getIcon(IconManager.SAVEAS)); control.attachItemListener(menuItem, ViewerCtrl.SAVE_AS); menu.add(menuItem); if (maxT == 0 && maxZ == 0) movieItem.setEnabled(false); return menu; }
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private JMenu createControlsMenu(int maxZ, int maxT) { JMenu menu = new JMenu("Controls"); JMenuItem menuItem = new JMenuItem("Rendering", im.getIcon(IconManager.RENDER)); control.attachItemListener(menuItem, ViewerCtrl.RENDERING); menu.add(menuItem); menuItem = new JMenuItem("Inspector", im.getIcon(IconManager.INSPECTOR)); control.attachItemListener(menuItem, ViewerCtrl.INSPECTOR); menu.add(menuItem); viewer3DItem = new JMenuItem("3D view", im.getIcon(IconManager.VIEWER3D)); control.attachItemListener(viewer3DItem, ViewerCtrl.VIEWER3D); viewer3DItem.setEnabled(maxZ != 0); menu.add(viewer3DItem); movieItem = new JMenuItem("Movie", im.getIcon(IconManager.MOVIE)); control.attachItemListener(menuItem, ViewerCtrl.MOVIE); menu.add(movieItem); menuItem = new JMenuItem("SAVE AS...", im.getIcon(IconManager.SAVEAS)); control.attachItemListener(menuItem, ViewerCtrl.SAVE_AS); menu.add(menuItem); if (maxT == 0 && maxZ == 0) movieItem.setEnabled(false); return menu; }
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private JMenu createControlsMenu(int maxZ, int maxT) { JMenu menu = new JMenu("Controls"); JMenuItem menuItem = new JMenuItem("Rendering", im.getIcon(IconManager.RENDER)); control.attachItemListener(menuItem, ViewerCtrl.RENDERING); menu.add(menuItem); menuItem = new JMenuItem("Inspector", im.getIcon(IconManager.INSPECTOR)); control.attachItemListener(menuItem, ViewerCtrl.INSPECTOR); menu.add(menuItem); viewer3DItem = new JMenuItem("3D view", im.getIcon(IconManager.VIEWER3D)); control.attachItemListener(viewer3DItem, ViewerCtrl.VIEWER3D); viewer3DItem.setEnabled(maxZ != 0); menu.add(viewer3DItem); movieItem = new JMenuItem("Movie", im.getIcon(IconManager.MOVIE)); control.attachItemListener(menuItem, ViewerCtrl.MOVIE); menu.add(movieItem); menuItem = new JMenuItem("SAVE AS...", im.getIcon(IconManager.SAVEAS)); control.attachItemListener(menuItem, ViewerCtrl.SAVE_AS); menu.add(menuItem); if (maxT == 0 && maxZ == 0) movieItem.setEnabled(false); return menu; }
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private JMenu createControlsMenu(int maxZ, int maxT) { JMenu menu = new JMenu("Controls"); JMenuItem menuItem = new JMenuItem("Rendering", im.getIcon(IconManager.RENDER)); control.attachItemListener(menuItem, ViewerCtrl.RENDERING); menu.add(menuItem); menuItem = new JMenuItem("Inspector", im.getIcon(IconManager.INSPECTOR)); control.attachItemListener(menuItem, ViewerCtrl.INSPECTOR); menu.add(menuItem); viewer3DItem = new JMenuItem("3D view", im.getIcon(IconManager.VIEWER3D)); control.attachItemListener(viewer3DItem, ViewerCtrl.VIEWER3D); viewer3DItem.setEnabled(maxZ != 0); menu.add(viewer3DItem); movieItem = new JMenuItem("Movie", im.getIcon(IconManager.MOVIE)); control.attachItemListener(menuItem, ViewerCtrl.MOVIE); menu.add(movieItem); menuItem = new JMenuItem("SAVE AS...", im.getIcon(IconManager.SAVEAS)); control.attachItemListener(menuItem, ViewerCtrl.SAVE_AS); menu.add(menuItem); if (maxT == 0 && maxZ == 0) movieItem.setEnabled(false); return menu; }
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private JMenuBar createMenuBar(int maxZ, int maxT) { JMenuBar menuBar = new JMenuBar(); menuBar.add(createControlsMenu(maxZ, maxT)); return menuBar; }
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private JMenuBar createMenuBar(int maxZ, int maxT) { JMenuBar menuBar = new JMenuBar(); menuBar.add(createControlsMenu(maxZ, maxT)); return menuBar; }
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private void initSliders(int maxT, int t, int maxZ, int z) { tSlider = new JSlider(JSlider.VERTICAL, 0, maxT, t); String s = "Move the slider to navigate across time."; tSlider.setToolTipText(UIUtilities.formatToolTipText(s)); tSlider.setEnabled(maxT != 0); zSlider = new JSlider(JSlider.VERTICAL, 0, maxZ, z); s = "Move the slider to navigate across Z stack."; zSlider.setToolTipText(UIUtilities.formatToolTipText(s)); zSlider.setEnabled(maxZ != 0); }
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private void initSliders(int maxT, int t, int maxZ, int z) { tSlider = new JSlider(JSlider.VERTICAL, 0, maxT, t); String s = "Move the slider to navigate across time."; tSlider.setToolTipText(UIUtilities.formatToolTipText(s)); tSlider.setEnabled(maxT != 0); zSlider = new JSlider(JSlider.VERTICAL, 0, maxZ, z); s = "Move the slider to navigate across Z stack."; zSlider.setToolTipText(UIUtilities.formatToolTipText(s)); zSlider.setEnabled(maxZ != 0); }
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private void resetSliders(int maxT, int t, int maxZ, int z) { tSlider.removeChangeListener(control); tSlider.setMaximum(maxT); tSlider.setValue(t); tSlider.addChangeListener(control); zSlider.removeChangeListener(control); zSlider.setMaximum(maxZ); zSlider.setValue(z); zSlider.addChangeListener(control); zSlider.setEnabled(maxZ != 0); tSlider.setEnabled(maxT != 0); }
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private void resetSliders(int maxT, int t, int maxZ, int z) { tSlider.removeChangeListener(control); tSlider.setMaximum(maxT); tSlider.setValue(t); tSlider.addChangeListener(control); zSlider.removeChangeListener(control); zSlider.setMaximum(maxZ); zSlider.setValue(z); zSlider.addChangeListener(control); zSlider.setEnabled(maxZ != 0); tSlider.setEnabled(maxT != 0); }
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void setDefaultZT(int t, int z, int sizeT, int sizeZ) { ToolBarManager tbm = toolBar.getManager(); tbm.onTChange(t); tbm.onZChange(z); int maxZ = sizeZ-1; int maxT = sizeT-1; tbm.setMaxT(maxT); tbm.setMaxZ(maxZ); toolBar.getZLabel().setText("/"+maxZ); toolBar.getTLabel().setText("/"+maxT); resetSliders(maxT, t, maxZ, z); boolean bT = false, bZ = false; if (maxT != 0) bT = true; if (maxZ != 0) bZ = true; toolBar.getTField().setEditable(bT); toolBar.getZField().setEditable(bZ); toolBar.getViewer3D().setEnabled(bZ); viewer3DItem.setEnabled(bZ); if (bZ && bT) movieItem.setEnabled(true); }
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void setDefaultZT(int t, int z, int sizeT, int sizeZ) { ToolBarManager tbm = toolBar.getManager(); tbm.onTChange(t); tbm.onZChange(z); int maxZ = sizeZ-1; int maxT = sizeT-1; tbm.setMaxT(maxT); tbm.setMaxZ(maxZ); toolBar.getZLabel().setText("/"+maxZ); toolBar.getTLabel().setText("/"+maxT); resetSliders(maxT, t, maxZ, z); boolean bT = false, bZ = false; if (maxT != 0) bT = true; if (maxZ != 0) bZ = true; toolBar.getTField().setEditable(bT); toolBar.getZField().setEditable(bZ); toolBar.getViewer3D().setEnabled(bZ); viewer3DItem.setEnabled(bZ); if (bZ && bT) movieItem.setEnabled(true); }
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void setDefaultZT(int t, int z, int sizeT, int sizeZ) { ToolBarManager tbm = toolBar.getManager(); tbm.onTChange(t); tbm.onZChange(z); int maxZ = sizeZ-1; int maxT = sizeT-1; tbm.setMaxT(maxT); tbm.setMaxZ(maxZ); toolBar.getZLabel().setText("/"+maxZ); toolBar.getTLabel().setText("/"+maxT); resetSliders(maxT, t, maxZ, z); boolean bT = false, bZ = false; if (maxT != 0) bT = true; if (maxZ != 0) bZ = true; toolBar.getTField().setEditable(bT); toolBar.getZField().setEditable(bZ); toolBar.getViewer3D().setEnabled(bZ); viewer3DItem.setEnabled(bZ); if (bZ && bT) movieItem.setEnabled(true); }
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void setDefaultZT(int t, int z, int sizeT, int sizeZ) { ToolBarManager tbm = toolBar.getManager(); tbm.onTChange(t); tbm.onZChange(z); int maxZ = sizeZ-1; int maxT = sizeT-1; tbm.setMaxT(maxT); tbm.setMaxZ(maxZ); toolBar.getZLabel().setText("/"+maxZ); toolBar.getTLabel().setText("/"+maxT); resetSliders(maxT, t, maxZ, z); boolean bT = false, bZ = false; if (maxT != 0) bT = true; if (maxZ != 0) bZ = true; toolBar.getTField().setEditable(bT); toolBar.getZField().setEditable(bZ); toolBar.getViewer3D().setEnabled(bZ); viewer3DItem.setEnabled(bZ); if (bZ && bT) movieItem.setEnabled(true); }
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void setImage(BufferedImage img) { if (!active) { int w = img.getWidth()+2*START; int h = img.getHeight()+2*START; setSizePaintedComponents(new Dimension(w, h)); setWindowSize(img.getWidth()+4*START, img.getHeight()+4*START); } canvas.paintImage(img); active = true; }
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void setImage(BufferedImage img) { if (!active) { int w = img.getWidth()+2*START; int h = img.getHeight()+2*START; setSizePaintedComponents(new Dimension(w, h)); setWindowSize(img.getWidth()+4*START, img.getHeight()+4*START); } canvas.paintImage(img); active = true; }
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void setImage(BufferedImage img) { if (!active) { int w = img.getWidth()+2*START; int h = img.getHeight()+2*START; setSizePaintedComponents(new Dimension(w, h)); setWindowSize(img.getWidth()+4*START, img.getHeight()+4*START); } canvas.paintImage(img); active = true; }
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void setImage(BufferedImage img) { if (!active) { int w = img.getWidth()+2*START; int h = img.getHeight()+2*START; setSizePaintedComponents(new Dimension(w, h)); setWindowSize(img.getWidth()+4*START, img.getHeight()+4*START); } canvas.paintImage(img); active = true; }
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private void setWindowSize(int w, int h) { Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); int width = 7*(screenSize.width/10); int height = 7*(screenSize.height/10); if (w > width) w = width; if (h > height) h = height; setSize(w, h); }
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private void setWindowSize(int w, int h) { Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); int width = 7*(screenSize.width/10); int height = 7*(screenSize.height/10); if (w > width) w = width; if (h > height) h = height; setSize(w, h); }
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public ImageInspector(ViewerCtrl control, ImageCanvas canvas, double magFactor) { super(control.getReferenceFrame(), "Image inspector"); init(control, canvas, magFactor); setJMenuBar(menuBar); buildGUI(); pack(); }
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public ImageInspector(ViewerCtrl control, ImageCanvas canvas, double magFactor, int w, int h) { super(control.getReferenceFrame(), "Image inspector"); init(control, canvas, magFactor); setJMenuBar(menuBar); buildGUI(); pack(); }
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