bugged
stringlengths 6
599k
| fixed
stringlengths 6
40.8M
| __index_level_0__
int64 0
3.24M
|
|---|---|---|
void setInputWindowEnd(int v, int min, int max) { int vg = convertRealIntoGraphics(v, max-min, view.getInputGraphicsRange(), min); vg = vg + leftBorder; setInputEndBox(vg); view.updateInputEnd(vg, v); }
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void setInputWindowEnd(int v, int min, int max) { int vg = convertRealIntoGraphics(v, max-min, view.getInputGraphicsRange(), min); vg = vg + leftBorder; setInputEndBox(vg); view.updateInputEnd(vg, v); }
| 3,234,188
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void setInputWindowStart(int value) { if (histogramDialog != null) histogramDialog.getManager().setInputWindowStart(value); }
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void setInputWindowStart(int value) { if (histogramDialog != null) histogramDialog.getManager().setInputWindowStart(value); }
| 3,234,189
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void setInputWindowStart(int v, int min, int max) { int vg = convertRealIntoGraphics(v, max-min, view.getInputGraphicsRange(), min); vg = vg + leftBorder; setInputStartBox(vg); view.updateInputStart(vg, v); }
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void setInputWindowStart(int v, int min, int max) { int vg = convertRealIntoGraphics(v, max-min, view.getInputGraphicsRange(), min); vg = vg + leftBorder; setInputStartBox(vg); view.updateInputStart(vg, v); }
| 3,234,190
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private void resetDefaultGamma() { view.getGammaLabel().setText(" Gamma: "+(double) GraphicsRepresentation.INIT/10); JSlider slider = view.getGamma(); //Remove temporarily the listener otherwise an event is fired. slider.removeChangeListener(this); slider.setValue(GraphicsRepresentation.INIT); slider.addChangeListener(this); }
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private void resetDefaultGamma() { view.getGammaLabel().setText(" Gamma: "+(double) GraphicsRepresentation.INIT/10); JSlider slider = view.getGamma(); //Remove temporarily the listener otherwise an event is fired. slider.removeChangeListener(this); slider.setValue(GraphicsRepresentation.INIT); slider.addChangeListener(this); }
| 3,234,191
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private void resetDefaultComboBox(JComboBox box, int index) { //Remove temporarily the listener otherwise an event is fired. box.removeActionListener(this); box.setSelectedIndex(index); box.addActionListener(this); }
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private void resetDefaultComboBox(JComboBox box, int index) { //Remove temporarily the listener otherwise an event is fired. box.removeActionListener(this); box.setSelectedIndex(index); box.addActionListener(this); }
| 3,234,192
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
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private int nextc() { int c = source.read(); if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
| 3,234,193
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
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private int nextc() { int c; if (c == 65535) { c = -1; } ruby.setSourceLine(source.getLine()); return c; /*int c; if (col == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
| 3,234,194
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
| 3,234,195
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); col = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
| 3,234,196
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
| 3,234,197
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c; }
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private int nextc() { int c; if (lex_p == lex_pend) { if (lex_input != null) { RubyObject v = lex_getline(); if (v.isNil()) { return -1; } if (ph.getHeredocEnd() > 0) { ruby.setSourceLine(ph.getHeredocEnd()); ph.setHeredocEnd(0); } ruby.setSourceLine(ruby.getSourceLine() + 1); lex_curline = ((RubyString) v).getValue(); lex_p = lex_pbeg = 0; lex_pend = lex_curline.length(); if (lex_curline.startsWith("__END__") && (lex_pend == 7 || lex_curline.charAt(7) == '\n' || lex_curline.charAt(7) == '\r')) { ph.setRubyEndSeen(true); lex_lastline = null; return -1; } lex_lastline = v; } else { lex_lastline = null; return -1; } } c = lex_curline.charAt(lex_p++); if (c == '\r' && lex_p <= lex_pend && lex_curline.charAt(lex_p) == '\n') { lex_p++; c = '\n'; } return c;*/ }
| 3,234,198
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private int parse_qstring(int term, int paren) { int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : // fall through if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } tokadd('\\'); } } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); yyVal = RubyString.newString(ruby, tok(), toklen()); ph.setLexState(LexState.EXPR_END); return Token.tSTRING; }
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private int parse_qstring(int term, int paren) { int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : // fall through if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } tokadd('\\'); } } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } yyVal = RubyString.newString(ruby, tok(), toklen()); ph.setLexState(LexState.EXPR_END); return Token.tSTRING; }
| 3,234,199
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (isSpace(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (isSpace(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
| 3,234,200
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!isSpace(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
| 3,234,201
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (isSpace(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
| 3,234,202
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
| 3,234,203
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (isSpace(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (isSpace(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
| 3,234,204
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { tokfix(); Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
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private int parse_quotedwords(int term, int paren) { Node qwords = null; int strstart; int c; int nest = 0; strstart = ruby.getSourceLine(); newtok(); c = nextc(); while (ISSPACE(c)) { c = nextc(); } /* * skip preceding spaces */ pushback(c); while ((c = nextc()) != term || nest > 0) { if (c == -1) { ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } if (c == '\\') { c = nextc(); switch (c) { case '\n' : continue; case '\\' : c = '\\'; break; default : if (c == term || (paren != 0 && c == paren)) { tokadd(c); continue; } if (!ISSPACE(c)) { tokadd('\\'); } break; } } else if (ISSPACE(c)) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); newtok(); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } c = nextc(); while (ISSPACE(c)) { c = nextc(); } // skip continuous spaces pushback(c); continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } if (toklen() > 0) { Node str = nf.newStr(RubyString.newString(ruby, tok(), toklen())); if (qwords == null) { qwords = nf.newList(str); } else { ph.list_append(qwords, str); } } if (qwords == null) { qwords = nf.newZArray(); } yyVal = qwords; ph.setLexState(LexState.EXPR_END); return Token.tDSTRING; }
| 3,234,205
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private int parse_regx(int term, int paren) { int c; char kcode = 0; boolean once = false; int nest = 0; int options = 0; int re_start = ruby.getSourceLine(); Node list = null; newtok(); regx_end : while ((c = nextc()) != -1) { if (c == term && nest == 0) { break regx_end; } switch (c) { case '#' : list = str_extend(list, term); if (list == Node.MINUS_ONE) { return 0; } continue; case '\\' : if (tokadd_escape(term) < 0) { /* * FIX 1.6.5 */ return 0; } continue; case -1 : //goto unterminated; ruby.setSourceLine(re_start); ph.rb_compile_error("unterminated regexp meets end of file"); return 0; default : if (paren != 0) { if (c == paren) { nest++; } if (c == term) { nest--; } } break; } tokadd(c); } end_options : for (;;) { switch (c = nextc()) { case 'i' : options |= ReOptions.RE_OPTION_IGNORECASE; break; case 'x' : options |= ReOptions.RE_OPTION_EXTENDED; break; case 'p' : // /p is obsolete ph.rb_warn("/p option is obsolete; use /m\n\tnote: /m does not change ^, $ behavior"); options |= ReOptions.RE_OPTION_POSIXLINE; break; case 'm' : options |= ReOptions.RE_OPTION_MULTILINE; break; case 'o' : once = true; break; case 'n' : kcode = 16; break; case 'e' : kcode = 32; break; case 's' : kcode = 48; break; case 'u' : kcode = 64; break; default : pushback(c); break end_options; } } tokfix(); ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(re_start); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } // new RuntimeException("Want to change " + list.getClass().getName() + "to DRegxNode").printStackTrace(); // list.nd_set_type(once ? NODE.NODE_DREGX_ONCE : NODE.NODE_DREGX); if (once) { list = new DRegxOnceNode(list.getLiteral(), options | kcode); } else { list = new DRegxNode(list.getLiteral(), options | kcode); } // list.setCFlag(options | kcode); yyVal = list; return Token.tDREGEXP; } else { yyVal = rb_reg_new(tok(), toklen(), options | kcode); return Token.tREGEXP; } //unterminated: //ruby_sourceline = re_start; //rb_compile_error("unterminated regexp meets end of file"); //return 0; }
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private int parse_regx(int term, int paren) { int c; char kcode = 0; boolean once = false; int nest = 0; int options = 0; int re_start = ruby.getSourceLine(); Node list = null; newtok(); regx_end : while ((c = nextc()) != -1) { if (c == term && nest == 0) { break regx_end; } switch (c) { case '#' : list = str_extend(list, term); if (list == Node.MINUS_ONE) { return 0; } continue; case '\\' : if (tokadd_escape(term) < 0) { /* * FIX 1.6.5 */ return 0; } continue; case -1 : //goto unterminated; ruby.setSourceLine(re_start); ph.rb_compile_error("unterminated regexp meets end of file"); return 0; default : if (paren != 0) { if (c == paren) { nest++; } if (c == term) { nest--; } } break; } tokadd(c); } end_options : for (;;) { switch (c = nextc()) { case 'i' : options |= ReOptions.RE_OPTION_IGNORECASE; break; case 'x' : options |= ReOptions.RE_OPTION_EXTENDED; break; case 'p' : // /p is obsolete ph.rb_warn("/p option is obsolete; use /m\n\tnote: /m does not change ^, $ behavior"); options |= ReOptions.RE_OPTION_POSIXLINE; break; case 'm' : options |= ReOptions.RE_OPTION_MULTILINE; break; case 'o' : once = true; break; case 'n' : kcode = 16; break; case 'e' : kcode = 32; break; case 's' : kcode = 48; break; case 'u' : kcode = 64; break; default : pushback(c); break end_options; } } ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(re_start); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } // new RuntimeException("Want to change " + list.getClass().getName() + "to DRegxNode").printStackTrace(); // list.nd_set_type(once ? NODE.NODE_DREGX_ONCE : NODE.NODE_DREGX); if (once) { list = new DRegxOnceNode(list.getLiteral(), options | kcode); } else { list = new DRegxNode(list.getLiteral(), options | kcode); } // list.setCFlag(options | kcode); yyVal = list; return Token.tDREGEXP; } else { yyVal = rb_reg_new(tok(), toklen(), options | kcode); return Token.tREGEXP; } //unterminated: //ruby_sourceline = re_start; //rb_compile_error("unterminated regexp meets end of file"); //return 0; }
| 3,234,206
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private int parse_regx(int term, int paren) { int c; char kcode = 0; boolean once = false; int nest = 0; int options = 0; int re_start = ruby.getSourceLine(); Node list = null; newtok(); regx_end : while ((c = nextc()) != -1) { if (c == term && nest == 0) { break regx_end; } switch (c) { case '#' : list = str_extend(list, term); if (list == Node.MINUS_ONE) { return 0; } continue; case '\\' : if (tokadd_escape(term) < 0) { /* * FIX 1.6.5 */ return 0; } continue; case -1 : //goto unterminated; ruby.setSourceLine(re_start); ph.rb_compile_error("unterminated regexp meets end of file"); return 0; default : if (paren != 0) { if (c == paren) { nest++; } if (c == term) { nest--; } } break; } tokadd(c); } end_options : for (;;) { switch (c = nextc()) { case 'i' : options |= ReOptions.RE_OPTION_IGNORECASE; break; case 'x' : options |= ReOptions.RE_OPTION_EXTENDED; break; case 'p' : // /p is obsolete ph.rb_warn("/p option is obsolete; use /m\n\tnote: /m does not change ^, $ behavior"); options |= ReOptions.RE_OPTION_POSIXLINE; break; case 'm' : options |= ReOptions.RE_OPTION_MULTILINE; break; case 'o' : once = true; break; case 'n' : kcode = 16; break; case 'e' : kcode = 32; break; case 's' : kcode = 48; break; case 'u' : kcode = 64; break; default : pushback(c); break end_options; } } tokfix(); ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(re_start); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } // new RuntimeException("Want to change " + list.getClass().getName() + "to DRegxNode").printStackTrace(); // list.nd_set_type(once ? NODE.NODE_DREGX_ONCE : NODE.NODE_DREGX); if (once) { list = new DRegxOnceNode(list.getLiteral(), options | kcode); } else { list = new DRegxNode(list.getLiteral(), options | kcode); } // list.setCFlag(options | kcode); yyVal = list; return Token.tDREGEXP; } else { yyVal = rb_reg_new(tok(), toklen(), options | kcode); return Token.tREGEXP; } //unterminated: //ruby_sourceline = re_start; //rb_compile_error("unterminated regexp meets end of file"); //return 0; }
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private int parse_regx(int term, int paren) { int c; char kcode = 0; boolean once = false; int nest = 0; int options = 0; int re_start = ruby.getSourceLine(); Node list = null; newtok(); regx_end : while ((c = nextc()) != -1) { if (c == term && nest == 0) { break regx_end; } switch (c) { case '#' : list = str_extend(list, term); if (list == Node.MINUS_ONE) { return 0; } continue; case '\\' : if (tokadd_escape(term) < 0) { /* * FIX 1.6.5 */ return 0; } continue; case -1 : //goto unterminated; ruby.setSourceLine(re_start); ph.rb_compile_error("unterminated regexp meets end of file"); return 0; default : if (paren != 0) { if (c == paren) { nest++; } if (c == term) { nest--; } } break; } tokadd(c); } end_options : for (;;) { switch (c = nextc()) { case 'i' : options |= ReOptions.RE_OPTION_IGNORECASE; break; case 'x' : options |= ReOptions.RE_OPTION_EXTENDED; break; case 'p' : // /p is obsolete ph.rb_warn("/p option is obsolete; use /m\n\tnote: /m does not change ^, $ behavior"); options |= ReOptions.RE_OPTION_POSIXLINE; break; case 'm' : options |= ReOptions.RE_OPTION_MULTILINE; break; case 'o' : once = true; break; case 'n' : kcode = 16; break; case 'e' : kcode = 32; break; case 's' : kcode = 48; break; case 'u' : kcode = 64; break; default : pushback(c); break end_options; } } tokfix(); ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(re_start); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } // new RuntimeException("Want to change " + list.getClass().getName() + "to DRegxNode").printStackTrace(); // list.nd_set_type(once ? NODE.NODE_DREGX_ONCE : NODE.NODE_DREGX); if (once) { list = new DRegxOnceNode(list.getLiteral(), options | kcode); } else { list = new DRegxNode(list.getLiteral(), options | kcode); } // list.setCFlag(options | kcode); yyVal = list; return Token.tDREGEXP; } else { yyVal = newRegexp(tok(), toklen(), options | kcode); return Token.tREGEXP; } //unterminated: //ruby_sourceline = re_start; //rb_compile_error("unterminated regexp meets end of file"); //return 0; }
| 3,234,207
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private int parse_string(int func, int term, int paren) { int c; Node list = null; int strstart; int nest = 0; if (func == '\'') { return parse_qstring(term, paren); } if (func == 0) { // read 1 line for heredoc // -1 for chomp yyVal = RubyString.newString(ruby, lex_curline, lex_pend - 1); lex_p = lex_pend; return Token.tSTRING; } strstart = ruby.getSourceLine(); newtok(); while ((c = nextc()) != term || nest > 0) { if (c == -1) { //unterm_str: ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } /* * if (ismbchar(c)) { * int i, len = mbclen(c)-1; * for (i = 0; i < len; i++) { * tokadd(c); * c = nextc(); * } * } * else */ if (c == '#') { list = str_extend(list, term); if (list == Node.MINUS_ONE) { //goto unterm_str; ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } continue; } else if (c == '\\') { c = nextc(); if (c == '\n') { continue; } if (c == term) { tokadd(c); } else { pushback(c); if (func != '"') { tokadd('\\'); } tokadd(read_escape()); } continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(strstart); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } yyVal = list; if (func == '`') { // new RuntimeException("[BUG] want to change " + list.getClass().getName() + " to DXStrNode").printStackTrace(); // list.nd_set_type(Constants.NODE_DXSTR); list = new DXStrNode(list.getLiteral()); yyVal = list; return Token.tDXSTRING; } else { return Token.tDSTRING; } } else { yyVal = RubyString.newString(ruby, tok(), toklen()); return (func == '`') ? Token.tXSTRING : Token.tSTRING; } }
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private int parse_string(int func, int term, int paren) { int c; Node list = null; int strstart; int nest = 0; if (func == '\'') { return parse_qstring(term, paren); } if (func == 0) { // read 1 line for heredoc // -1 for chomp yyVal = RubyString.newString(ruby, lex_curline, lex_pend - 1); lex_p = lex_pend; return Token.tSTRING; } strstart = ruby.getSourceLine(); newtok(); while ((c = nextc()) != term || nest > 0) { if (c == -1) { //unterm_str: ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } /* * if (ismbchar(c)) { * int i, len = mbclen(c)-1; * for (i = 0; i < len; i++) { * tokadd(c); * c = nextc(); * } * } * else */ if (c == '#') { list = str_extend(list, term); if (list == Node.MINUS_ONE) { //goto unterm_str; ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } continue; } else if (c == '\\') { c = nextc(); if (c == '\n') { continue; } if (c == term) { tokadd(c); } else { pushback(c); if (func != '"') { tokadd('\\'); } tokadd(read_escape()); } continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(strstart); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } yyVal = list; if (func == '`') { // new RuntimeException("[BUG] want to change " + list.getClass().getName() + " to DXStrNode").printStackTrace(); // list.nd_set_type(Constants.NODE_DXSTR); list = new DXStrNode(list.getLiteral()); yyVal = list; return Token.tDXSTRING; } else { return Token.tDSTRING; } } else { yyVal = RubyString.newString(ruby, tok(), toklen()); return (func == '`') ? Token.tXSTRING : Token.tSTRING; } }
| 3,234,208
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private int parse_string(int func, int term, int paren) { int c; Node list = null; int strstart; int nest = 0; if (func == '\'') { return parse_qstring(term, paren); } if (func == 0) { // read 1 line for heredoc // -1 for chomp yyVal = RubyString.newString(ruby, lex_curline, lex_pend - 1); lex_p = lex_pend; return Token.tSTRING; } strstart = ruby.getSourceLine(); newtok(); while ((c = nextc()) != term || nest > 0) { if (c == -1) { //unterm_str: ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } /* * if (ismbchar(c)) { * int i, len = mbclen(c)-1; * for (i = 0; i < len; i++) { * tokadd(c); * c = nextc(); * } * } * else */ if (c == '#') { list = str_extend(list, term); if (list == Node.MINUS_ONE) { //goto unterm_str; ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } continue; } else if (c == '\\') { c = nextc(); if (c == '\n') { continue; } if (c == term) { tokadd(c); } else { pushback(c); if (func != '"') { tokadd('\\'); } tokadd(read_escape()); } continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } tokfix(); ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(strstart); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } yyVal = list; if (func == '`') { // new RuntimeException("[BUG] want to change " + list.getClass().getName() + " to DXStrNode").printStackTrace(); // list.nd_set_type(Constants.NODE_DXSTR); list = new DXStrNode(list.getLiteral()); yyVal = list; return Token.tDXSTRING; } else { return Token.tDSTRING; } } else { yyVal = RubyString.newString(ruby, tok(), toklen()); return (func == '`') ? Token.tXSTRING : Token.tSTRING; } }
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private int parse_string(int func, int term, int paren) { int c; Node list = null; int strstart; int nest = 0; if (func == '\'') { return parse_qstring(term, paren); } if (func == 0) { // read 1 line for heredoc // -1 for chomp yyVal = RubyString.newString(ruby, lex_curline, lex_pend - 1); lex_p = lex_pend; return Token.tSTRING; } strstart = ruby.getSourceLine(); newtok(); while ((c = nextc()) != term || nest > 0) { if (c == -1) { //unterm_str: ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } /* * if (ismbchar(c)) { * int i, len = mbclen(c)-1; * for (i = 0; i < len; i++) { * tokadd(c); * c = nextc(); * } * } * else */ if (c == '#') { list = str_extend(list, term); if (list == Node.MINUS_ONE) { //goto unterm_str; ruby.setSourceLine(strstart); ph.rb_compile_error("unterminated string meets end of file"); return 0; } continue; } else if (c == '\\') { c = nextc(); if (c == '\n') { continue; } if (c == term) { tokadd(c); } else { pushback(c); if (func != '"') { tokadd('\\'); } tokadd(read_escape()); } continue; } if (paren != 0) { if (c == paren) { nest++; } if (c == term && nest-- == 0) { break; } } tokadd(c); } ph.setLexState(LexState.EXPR_END); if (list != null) { list.setLine(strstart); if (toklen() > 0) { RubyObject ss = RubyString.newString(ruby, tok(), toklen()); ph.list_append(list, nf.newStr(ss)); } yyVal = list; if (func == '`') { // new RuntimeException("[BUG] want to change " + list.getClass().getName() + " to DXStrNode").printStackTrace(); // list.nd_set_type(Constants.NODE_DXSTR); list = new DXStrNode(list.getLiteral()); yyVal = list; return Token.tDXSTRING; } else { return Token.tDSTRING; } } else { yyVal = RubyString.newString(ruby, tok(), toklen()); return (func == '`') ? Token.tXSTRING : Token.tSTRING; } }
| 3,234,209
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private boolean peek(int c) { return lex_p != lex_pend && c == lex_curline.charAt(lex_p); }
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private boolean peek(int c) { return source.isNext((char) c); }
| 3,234,210
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private void pushback(int c) { if (c == -1) { return; } lex_p--; }
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private void pushback(int c) { if (c == -1) { return; } lex_p--; }
| 3,234,211
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private int read_escape() { int c; switch (c = nextc()) { case '\\' : // Backslash return c; case 'n' : // newline return '\n'; case 't' : // horizontal tab return '\t'; case 'r' : // carriage-return return '\r'; case 'f' : // form-feed return '\f'; case 'v' : // vertical tab return '\013'; case 'a' : // alarm(bell) return '\007'; case 'e' : // escape return '\033'; case '0' : case '1' : case '2' : case '3' : // octal constant case '4' : case '5' : case '6' : case '7' : { int cc = 0; pushback(c); for (int i = 0; i < 3; i++) { c = nextc(); if (c == -1) { // goto eof yyerror("Invalid escape character syntax"); return '\0'; } if (c < '0' || '7' < c) { pushback(c); break; } cc = cc * 8 + c - '0'; } c = cc; } return c; case 'x' : // hex constant { int[] numlen = new int[1]; c = (int) scan_hex(lex_curline, lex_p, 2, numlen); lex_p += numlen[0]; } return c; case 'b' : // backspace return '\010'; case 's' : // space return ' '; case 'M' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return '\0'; } if ((c = nextc()) == '\\') { return read_escape() | 0x80; } else if (c == -1) { // goto eof yyerror("Invalid escape character syntax"); return '\0'; } else { return ((c & 0xff) | 0x80); } case 'C' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return '\0'; } case 'c' : if ((c = nextc()) == '\\') { c = read_escape(); } else if (c == '?') { return 0177; } else if (c == -1) { // goto eof yyerror("Invalid escape character syntax"); return '\0'; } return c & 0x9f; case -1 : // eof: yyerror("Invalid escape character syntax"); return '\0'; default : return c; } }
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private int read_escape() { int c; switch (c = nextc()) { case '\\' : // Backslash return c; case 'n' : // newline return '\n'; case 't' : // horizontal tab return '\t'; case 'r' : // carriage-return return '\r'; case 'f' : // form-feed return '\f'; case 'v' : // vertical tab return '\013'; case 'a' : // alarm(bell) return '\007'; case 'e' : // escape return '\033'; case '0' : case '1' : case '2' : case '3' : // octal constant case '4' : case '5' : case '6' : case '7' : { int cc = 0; pushback(c); for (int i = 0; i < 3; i++) { c = nextc(); if (c == -1) { // goto eof yyerror("Invalid escape character syntax"); return '\0'; } if (c < '0' || '7' < c) { pushback(c); break; } cc = cc * 8 + c - '0'; } c = cc; } return c; case 'x' : // hex constant { int[] numlen = new int[1]; c = (int) scan_hex(lex_curline, lex_p, 2, numlen); lex_p += numlen[0]; } return c; case 'b' : // backspace return '\010'; case 's' : // space return ' '; case 'M' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return '\0'; } if ((c = nextc()) == '\\') { return read_escape() | 0x80; } else if (c == -1) { // goto eof yyerror("Invalid escape character syntax"); return '\0'; } else { return ((c & 0xff) | 0x80); } case 'C' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return '\0'; } case 'c' : if ((c = nextc()) == '\\') { c = read_escape(); } else if (c == '?') { return 0177; } else if (c == -1) { // goto eof yyerror("Invalid escape character syntax"); return '\0'; } return c & 0x9f; case -1 : // eof: yyerror("Invalid escape character syntax"); return '\0'; default : return c; } }
| 3,234,212
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,213
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,214
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!isHexDigit(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,215
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,216
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = getNumFromString(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,217
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,218
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = getNumFromString(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,219
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
| 3,234,220
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private int start_num(int c) { boolean is_float; boolean seen_point; boolean seen_e; boolean seen_uc; is_float = seen_point = seen_e = seen_uc = false; ph.setLexState(LexState.EXPR_END); newtok(); if (c == '-' || c == '+') { tokadd(c); c = nextc(); } if (c == '0') { c = nextc(); if (c == 'x' || c == 'X') { // hexadecimal c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (!ISXDIGIT(c)) { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("hexadecimal number without hex-digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 16); return Token.tINTEGER; } if (c == 'b' || c == 'B') { // binary c = nextc(); do { if (c == '_') { seen_uc = true; continue; } if (c != '0' && c != '1') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (toklen() == 0) { yyerror("numeric literal without digits"); } else if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = rb_cstr2inum(tok(), 2); return Token.tINTEGER; } if (c >= '0' && c <= '7' || c == '_') { // octal do { if (c == '_') { seen_uc = true; continue; } if (c < '0' || c > '7') { break; } seen_uc = false; tokadd(c); } while ((c = nextc()) != 0); pushback(c); tokfix(); if (seen_uc) { return decode_num(c, is_float, seen_uc, true); } yyVal = getNumFromString(tok(), 8); return Token.tINTEGER; } if (c > '7' && c <= '9') { yyerror("Illegal octal digit"); } else if (c == '.') { tokadd('0'); } else { pushback(c); yyVal = RubyFixnum.zero(ruby); return Token.tINTEGER; } } for (;;) { switch (c) { case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : seen_uc = false; tokadd(c); break; case '.' : if (seen_point || seen_e) { return decode_num(c, is_float, seen_uc); } else { int c0 = nextc(); if (!Character.isDigit((char) c0)) { pushback(c0); return decode_num(c, is_float, seen_uc); } c = c0; } tokadd('.'); tokadd(c); is_float = true; seen_point = true; seen_uc = false; break; case 'e' : case 'E' : if (seen_e) { return decode_num(c, is_float, seen_uc); } tokadd(c); seen_e = true; is_float = true; while ((c = nextc()) == '_') { seen_uc = true; } if (c == '-' || c == '+') { tokadd(c); } else { continue; } break; case '_' : // '_' in number just ignored seen_uc = true; break; default : return decode_num(c, is_float, seen_uc); } c = nextc(); } }
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!isIdentifierChar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
| 3,234,222
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (isIdentifierChar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (isIdentifierChar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
| 3,234,223
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (isIdentifierChar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (isIdentifierChar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
| 3,234,224
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
| 3,234,225
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); tokfix(); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: tokfix(); node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
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private Node str_extend(Node list, int term) { int c; int brace = -1; RubyObject ss; Node node; int nest; c = nextc(); switch (c) { case '$' : case '@' : case '{' : break; default : tokadd('#'); pushback(c); return list; } ss = RubyString.newString(ruby, tok(), toklen()); if (list == null) { list = nf.newDStr(ss); } else if (toklen() > 0) { ph.list_append(list, nf.newStr(ss)); } newtok(); fetch_id : for (;;) { switch (c) { case '$' : tokadd('$'); c = nextc(); if (c == -1) { return Node.MINUS_ONE; } switch (c) { case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } pushback(c); break fetch_id; case '&' : case '+' : case '_' : case '~' : case '*' : case '$' : case '?' : case '!' : case '@' : case ',' : case '.' : case '=' : case ':' : case '<' : case '>' : case '\\' : //refetch: tokadd(c); break fetch_id; default : if (c == term) { ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#$"))); pushback(c); newtok(); return list; } switch (c) { case '\"' : case '/' : case '\'' : case '`' : //goto refetch; tokadd(c); break fetch_id; } if (!is_identchar(c)) { yyerror("bad global variable in string"); newtok(); return list; } } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '@' : tokadd(c); c = nextc(); if (c == '@') { tokadd(c); c = nextc(); } while (is_identchar(c)) { tokadd(c); c = nextc(); } pushback(c); break; case '{' : if (c == '{') { brace = '}'; } nest = 0; do { loop_again : for (;;) { c = nextc(); switch (c) { case -1 : if (nest > 0) { yyerror("bad substitution in string"); newtok(); return list; } return Node.MINUS_ONE; case '}' : if (c == brace) { if (nest == 0) { break; } nest--; } tokadd(c); continue loop_again; case '\\' : c = nextc(); if (c == -1) { return Node.MINUS_ONE; } if (c == term) { tokadd(c); } else { tokadd('\\'); tokadd(c); } break; case '{' : if (brace != -1) { nest++; } case '\"' : case '/' : case '`' : if (c == term) { pushback(c); ph.list_append(list, nf.newStr(RubyString.newString(ruby, "#"))); ph.rb_warning("bad substitution in string"); ph.list_append(list, nf.newStr(RubyString.newString(ruby, tok(), toklen()))); newtok(); return list; } default : tokadd(c); break; } break loop_again; } } while (c != brace); } break; } //fetch_id: node = nf.newEVStr(tok(), toklen()); ph.list_append(list, node); newtok(); return list; }
| 3,234,226
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private int tokadd_escape(int term) { /* * FIX 1.6.5 */ int c; switch (c = nextc()) { case '\n' : return 0; /* * just ignore */ case '0' : case '1' : case '2' : case '3' : /* * octal constant */ case '4' : case '5' : case '6' : case '7' : { int i; tokadd('\\'); tokadd(c); for (i = 0; i < 2; i++) { c = nextc(); if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } if (c < '0' || '7' < c) { pushback(c); break; } tokadd(c); } } return 0; case 'x' : // hex constant { tokadd('\\'); tokadd(c); int[] numlen = new int[1]; scan_hex(lex_curline, lex_p, 2, numlen); while (numlen[0]-- != 0) { tokadd(nextc()); } } return 0; case 'M' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return 0; } tokadd('\\'); tokadd('M'); tokadd('-'); //goto escaped; if ((c = nextc()) == '\\') { return tokadd_escape(term); /* * FIX 1.6.5 */ } else if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } tokadd(c); return 0; case 'C' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return 0; } tokadd('\\'); tokadd('C'); tokadd('-'); //goto escaped; if ((c = nextc()) == '\\') { return tokadd_escape(term); /* * FIX 1.6.5 */ } else if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } tokadd(c); return 0; case 'c' : tokadd('\\'); tokadd('c'); //escaped: if ((c = nextc()) == '\\') { return tokadd_escape(term); /* * FIX 1.6.5 */ } else if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } tokadd(c); return 0; case -1 : // eof: yyerror("Invalid escape character syntax"); return -1; default : if (c != term) { /* * FIX 1.6.5 */ tokadd('\\'); } /* * FIX 1.6.5 */ tokadd(c); } return 0; }
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private int tokadd_escape(int term) { /* * FIX 1.6.5 */ int c; switch (c = nextc()) { case '\n' : return 0; /* * just ignore */ case '0' : case '1' : case '2' : case '3' : /* * octal constant */ case '4' : case '5' : case '6' : case '7' : { int i; tokadd('\\'); tokadd(c); for (i = 0; i < 2; i++) { c = nextc(); if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } if (c < '0' || '7' < c) { pushback(c); break; } tokadd(c); } } return 0; case 'x' : // hex constant { tokadd('\\'); tokadd(c); int[] numlen = new int[1]; scan_hex(lex_curline, lex_p, 2, numlen); while (numlen[0]-- != 0) { tokadd(nextc()); } } return 0; case 'M' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return 0; } tokadd('\\'); tokadd('M'); tokadd('-'); //goto escaped; if ((c = nextc()) == '\\') { return tokadd_escape(term); /* * FIX 1.6.5 */ } else if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } tokadd(c); return 0; case 'C' : if ((c = nextc()) != '-') { yyerror("Invalid escape character syntax"); pushback(c); return 0; } tokadd('\\'); tokadd('C'); tokadd('-'); //goto escaped; if ((c = nextc()) == '\\') { return tokadd_escape(term); /* * FIX 1.6.5 */ } else if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } tokadd(c); return 0; case 'c' : tokadd('\\'); tokadd('c'); //escaped: if ((c = nextc()) == '\\') { return tokadd_escape(term); /* * FIX 1.6.5 */ } else if (c == -1) { // goto eof; yyerror("Invalid escape character syntax"); return -1; // goto eof; end } tokadd(c); return 0; case -1 : // eof: yyerror("Invalid escape character syntax"); return -1; default : if (c != term) { /* * FIX 1.6.5 */ tokadd('\\'); } /* * FIX 1.6.5 */ tokadd(c); } return 0; }
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private void yyerror(String msg) { System.err.println(msg); }
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private void yyerror(String msg) { System.err.println(msg); }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; Keyword kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (isArgState() && space_seen != 0 && !isSpace(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (isArgState() && space_seen != 0 && !isSpace(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (isArgState() && space_seen != 0 && !isSpace(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (source.getColumn() == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (support.isNext("begin") && Character.isWhitespace(support.getCharAt(5))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { support.readLine(); c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } support.readLine(); continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!isArgState() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); boolean indent = false; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = true; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (isArgState() && isSpace(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (isArgState() && space_seen != 0 && !isSpace(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (isArgState() && space_seen != 0 && !isSpace(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (isArgState() && space_seen != 0 && !isSpace(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (isArgState() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || isSpace(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (isArgState() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (isIdentifierChar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (isIdentifierChar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (isIdentifierChar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (isIdentifierChar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!isIdentifierChar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!isIdentifierChar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!isIdentifierChar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!isIdentifierChar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!isIdentifierChar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (isIdentifierChar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && isIdentifierChar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = getKeyword(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
|
private int yylex() { int c; int space_seen = 0; kwtable kw; retry : for (;;) { switch (c = nextc()) { case '\0' : // NUL case '\004' : // ^D case '\032' : // ^Z case -1 : //end of script. return 0; // white spaces case ' ' : case '\t' : case '\f' : case '\r' : case '\013' : // '\v' space_seen++; continue retry; case '#' : // it's a comment while ((c = nextc()) != '\n') { if (c == -1) { return 0; } } // fall through case '\n' : switch (ph.getLexState()) { case LexState.EXPR_BEG : case LexState.EXPR_FNAME : case LexState.EXPR_DOT : continue retry; default : break; } ph.setLexState(LexState.EXPR_BEG); return '\n'; case '*' : if ((c = nextc()) == '*') { ph.setLexState(LexState.EXPR_BEG); if (nextc() == '=') { yyVal = "**"; // ph.newId(Token.tPOW); return Token.tOP_ASGN; } pushback(c); return Token.tPOW; } if (c == '=') { yyVal = "*"; // ph.newId('*'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("'*' interpreted as argument prefix"); c = Token.tSTAR; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tSTAR; } else { c = '*'; } ph.setLexState(LexState.EXPR_BEG); return c; case '!' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tNEQ; } if (c == '~') { return Token.tNMATCH; } pushback(c); return '!'; case '=' : if (lex_p == 1) { // skip embedded rd document if (lex_curline.startsWith("=begin") && (lex_pend == 6 || ISSPACE(lex_curline.charAt(6)))) { for (;;) { lex_p = lex_pend; c = nextc(); if (c == -1) { ph.rb_compile_error("embedded document meets end of file"); return 0; } if (c != '=') { continue; } if (lex_curline.substring(lex_p, lex_p + 3).equals("end") && (lex_p + 3 == lex_pend || ISSPACE(lex_curline.charAt(lex_p + 3)))) { break; } } lex_p = lex_pend; continue retry; } } ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { if ((c = nextc()) == '=') { return Token.tEQQ; } pushback(c); return Token.tEQ; } if (c == '~') { return Token.tMATCH; } else if (c == '>') { return Token.tASSOC; } pushback(c); return '='; case '<' : c = nextc(); if (c == '<' && ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ENDARG && ph.getLexState() != LexState.EXPR_CLASS && (!IS_ARG() || space_seen != 0)) { int c2 = nextc(); int indent = 0; if (c2 == '-') { indent = 1; c2 = nextc(); } if (!ISSPACE(c2) && ("\"'`".indexOf(c2) != -1 || is_identchar(c2))) { return here_document(c2, indent); } pushback(c2); } ph.setLexState(LexState.EXPR_BEG); if (c == '=') { if ((c = nextc()) == '>') { return Token.tCMP; } pushback(c); return Token.tLEQ; } if (c == '<') { if (nextc() == '=') { yyVal = "<<"; // ph.newId(Token.tLSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tLSHFT; } pushback(c); return '<'; case '>' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { return Token.tGEQ; } if (c == '>') { if ((c = nextc()) == '=') { yyVal = ">>"; //ph.newId(Token.tRSHFT); return Token.tOP_ASGN; } pushback(c); return Token.tRSHFT; } pushback(c); return '>'; case '"' : return parse_string(c, c, c); case '`' : if (ph.getLexState() == LexState.EXPR_FNAME) { return c; } if (ph.getLexState() == LexState.EXPR_DOT) { return c; } return parse_string(c, c, c); case '\'' : return parse_qstring(c, 0); case '?' : if (ph.getLexState() == LexState.EXPR_END) { ph.setLexState(LexState.EXPR_BEG); return '?'; } c = nextc(); if (c == -1) { /* FIX 1.6.5 */ ph.rb_compile_error("incomplete character syntax"); return 0; } if (IS_ARG() && ISSPACE(c)) { pushback(c); ph.setLexState(LexState.EXPR_BEG); return '?'; } if (c == '\\') { c = read_escape(); } c &= 0xff; yyVal = RubyFixnum.newFixnum(ruby, c); ph.setLexState(LexState.EXPR_END); return Token.tINTEGER; case '&' : if ((c = nextc()) == '&') { ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "&&"; // ph.newId(Token.tANDOP); return Token.tOP_ASGN; } pushback(c); return Token.tANDOP; } else if (c == '=') { yyVal = "&"; //ph.newId('&'); ph.setLexState(LexState.EXPR_BEG); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { ph.rb_warning("`&' interpeted as argument prefix"); c = Token.tAMPER; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tAMPER; } else { c = '&'; } ph.setLexState(LexState.EXPR_BEG); return c; case '|' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '|') { if ((c = nextc()) == '=') { yyVal = "||"; // ph.newId(Token.tOROP); return Token.tOP_ASGN; } pushback(c); return Token.tOROP; } else if (c == '=') { yyVal = "|"; //ph.newId('|'); return Token.tOP_ASGN; } pushback(c); return '|'; case '+' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUPLUS; } pushback(c); return '+'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "+"; //ph.newId('+'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '+'; return start_num(c); } return Token.tUPLUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '+'; case '-' : c = nextc(); if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if (c == '@') { return Token.tUMINUS; } pushback(c); return '-'; } if (c == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "-"; // ph.newId('-'); return Token.tOP_ASGN; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0 && !ISSPACE(c))) { if (IS_ARG()) { arg_ambiguous(); } ph.setLexState(LexState.EXPR_BEG); pushback(c); if (Character.isDigit((char) c)) { c = '-'; return start_num(c); } return Token.tUMINUS; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '-'; case '.' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '.') { if ((c = nextc()) == '.') { return Token.tDOT3; } pushback(c); return Token.tDOT2; } pushback(c); if (!Character.isDigit((char) c)) { ph.setLexState(LexState.EXPR_DOT); return '.'; } c = '.'; // fall through //start_num: case '0' : case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : return start_num(c); case ']' : case '}' : ph.setLexState(LexState.EXPR_END); return c; case ')' : if (cond_nest > 0) { cond_stack >>= 1; } ph.setLexState(LexState.EXPR_END); return c; case ':' : c = nextc(); if (c == ':') { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID || (IS_ARG() && space_seen != 0)) { ph.setLexState(LexState.EXPR_BEG); return Token.tCOLON3; } ph.setLexState(LexState.EXPR_DOT); return Token.tCOLON2; } pushback(c); if (ph.getLexState() == LexState.EXPR_END || ISSPACE(c)) { ph.setLexState(LexState.EXPR_BEG); return ':'; } ph.setLexState(LexState.EXPR_FNAME); return Token.tSYMBEG; case '/' : if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { return parse_regx('/', '/'); } if ((c = nextc()) == '=') { ph.setLexState(LexState.EXPR_BEG); yyVal = "/"; // ph.newId('/'); return Token.tOP_ASGN; } pushback(c); if (IS_ARG() && space_seen != 0) { if (!ISSPACE(c)) { arg_ambiguous(); return parse_regx('/', '/'); } } ph.setLexState(LexState.EXPR_BEG); return '/'; case '^' : ph.setLexState(LexState.EXPR_BEG); if ((c = nextc()) == '=') { yyVal = "^"; //ph.newId('^'); return Token.tOP_ASGN; } pushback(c); return '^'; case ',' : case ';' : ph.setLexState(LexState.EXPR_BEG); return c; case '~' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) != '@') { pushback(c); } } ph.setLexState(LexState.EXPR_BEG); return '~'; case '(' : if (cond_nest > 0) { cond_stack = (cond_stack << 1) | 0; } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLPAREN; } else if (ph.getLexState() == LexState.EXPR_ARG && space_seen != 0) { ph.rb_warning(tok() + " (...) interpreted as method call"); } ph.setLexState(LexState.EXPR_BEG); return c; case '[' : if (ph.getLexState() == LexState.EXPR_FNAME || ph.getLexState() == LexState.EXPR_DOT) { if ((c = nextc()) == ']') { if ((c = nextc()) == '=') { return Token.tASET; } pushback(c); return Token.tAREF; } pushback(c); return '['; } else if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { c = Token.tLBRACK; } else if (IS_ARG() && space_seen != 0) { c = Token.tLBRACK; } ph.setLexState(LexState.EXPR_BEG); return c; case '{' : if (ph.getLexState() != LexState.EXPR_END && ph.getLexState() != LexState.EXPR_ARG) { c = Token.tLBRACE; } ph.setLexState(LexState.EXPR_BEG); return c; case '\\' : c = nextc(); if (c == '\n') { space_seen = 1; continue retry; // skip \\n } pushback(c); return '\\'; case '%' : quotation : for (;;) { if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_MID) { int term; int paren; c = nextc(); if (!Character.isLetterOrDigit((char) c)) { term = c; c = 'Q'; } else { term = nextc(); } if (c == -1 || term == -1) { ph.rb_compile_error("unterminated quoted string meets end of file"); return 0; } paren = term; if (term == '(') { term = ')'; } else if (term == '[') { term = ']'; } else if (term == '{') { term = '}'; } else if (term == '<') { term = '>'; } else { paren = 0; } switch (c) { case 'Q' : return parse_string('"', term, paren); case 'q' : return parse_qstring(term, paren); case 'w' : return parse_quotedwords(term, paren); case 'x' : return parse_string('`', term, paren); case 'r' : return parse_regx(term, paren); default : yyerror("unknown type of %string"); return 0; } } if ((c = nextc()) == '=') { yyVal = "%"; //ph.newId('%'); return Token.tOP_ASGN; } if (IS_ARG() && space_seen != 0 && !ISSPACE(c)) { pushback(c); continue quotation; } break quotation; } ph.setLexState(LexState.EXPR_BEG); pushback(c); return '%'; case '$' : ph.setLexState(LexState.EXPR_END); newtok(); c = nextc(); switch (c) { case '_' : // $_: last read line string c = nextc(); if (is_identchar(c)) { tokadd('$'); tokadd('_'); break; } pushback(c); c = '_'; // fall through case '~' : // $~: match-data ph.getLocalIndex(String.valueOf(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 '\"' : // $": already loaded files tokadd('$'); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); return Token.tGVAR; case '-' : tokadd('$'); tokadd(c); c = nextc(); tokadd(c); tokfix(); yyVal = tok(); // ruby.intern(tok()); /* xxx shouldn't check if valid option variable */ return Token.tGVAR; case '&' : // $&: last match case '`' : // $`: string before last match case '\'' : // $': string after last match case '+' : // $+: string matches last paren. yyVal = nf.newBackRef(c); return Token.tBACK_REF; case '1' : case '2' : case '3' : case '4' : case '5' : case '6' : case '7' : case '8' : case '9' : tokadd('$'); while (Character.isDigit((char) c)) { tokadd(c); c = nextc(); } if (is_identchar(c)) { break; } pushback(c); tokfix(); yyVal = nf.newNthRef(Integer.parseInt(tok().substring(1))); return Token.tNTH_REF; default : if (!is_identchar(c)) { pushback(c); return '$'; } case '0' : tokadd('$'); } break; case '@' : c = nextc(); newtok(); tokadd('@'); if (c == '@') { tokadd('@'); c = nextc(); } if (Character.isDigit((char) c)) { ph.rb_compile_error("`@" + c + "' is not a valid instance variable name"); } if (!is_identchar(c)) { pushback(c); return '@'; } break; default : if (!is_identchar(c) || Character.isDigit((char) c)) { ph.rb_compile_error("Invalid char `\\" + c + "' in expression"); continue retry; } newtok(); break; } break retry; } while (is_identchar(c)) { tokadd(c); c = nextc(); } if ((c == '!' || c == '?') && is_identchar(tok().charAt(0)) && !peek('=')) { tokadd(c); } else { pushback(c); } tokfix(); { int result = 0; switch (tok().charAt(0)) { case '$' : ph.setLexState(LexState.EXPR_END); result = Token.tGVAR; break; case '@' : ph.setLexState(LexState.EXPR_END); if (tok().charAt(1) == '@') { result = Token.tCVAR; } else { result = Token.tIVAR; } break; default : if (ph.getLexState() != LexState.EXPR_DOT) { // See if it is a reserved word. kw = rb_reserved_word(tok(), toklen()); if (kw != null) { // enum lex_state int state = ph.getLexState(); ph.setLexState(kw.state); if (state == LexState.EXPR_FNAME) { yyVal = kw.name; // ruby.intern(kw.name); } if (kw.id0 == Token.kDO) { if (COND_P()) { return Token.kDO_COND; } if (CMDARG_P()) { return Token.kDO_BLOCK; } return Token.kDO; } if (state == LexState.EXPR_BEG) { return kw.id0; } else { if (kw.id0 != kw.id1) { ph.setLexState(LexState.EXPR_BEG); } return kw.id1; } } } if (toklast() == '!' || toklast() == '?') { result = Token.tFID; } else { if (ph.getLexState() == LexState.EXPR_FNAME) { if ((c = nextc()) == '=' && !peek('~') && !peek('>') && (!peek('=') || lex_p + 1 < lex_pend && lex_curline.charAt(lex_p + 1) == '>')) { result = Token.tIDENTIFIER; tokadd(c); } else { pushback(c); } } if (result == 0 && Character.isUpperCase(tok().charAt(0))) { result = Token.tCONSTANT; } else { result = Token.tIDENTIFIER; } } if (ph.getLexState() == LexState.EXPR_BEG || ph.getLexState() == LexState.EXPR_DOT || ph.getLexState() == LexState.EXPR_ARG) { ph.setLexState(LexState.EXPR_ARG); } else { ph.setLexState(LexState.EXPR_END); } } tokfix(); yyVal = tok(); // ruby.intern(tok()); return result; } }
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protected IRubyObject invokeMethod(IRubyObject recv, Object[] methodArgs) { Object[] reflectionArguments = packageArgumentsForReflection(methodArgs, recv); try { return (IRubyObject) getMethod().invoke( isStaticMethod ? null : recv, reflectionArguments); } catch (InvocationTargetException itExcptn) { if (itExcptn.getTargetException() instanceof RaiseException) { throw (RaiseException) itExcptn.getTargetException(); } else if (itExcptn.getTargetException() instanceof JumpException) { throw (JumpException) itExcptn.getTargetException(); } else { recv.getRuntime().getJavaSupport().handleNativeException( (Exception) itExcptn.getTargetException()); return recv.getRuntime().getNil(); } } catch (IllegalAccessException iaExcptn) { StringBuffer message = new StringBuffer(); message.append(iaExcptn.getMessage()); message.append(':'); message.append(" methodName=").append(methodName); message.append(" recv=").append(recv.toString()); message.append(" klass=").append(klass.getName()); message.append(" methodArgs=["); for (int i = 0; i < methodArgs.length; i++) { message.append(methodArgs[i]); message.append(' '); } message.append(']'); Asserts.assertNotReached(message.toString()); } catch (final IllegalArgumentException iaExcptn) { throw new RaiseException(recv.getRuntime(), "TypeError", iaExcptn.getMessage()); } throw new AssertError("[BUG] Run again with Asserts.ENABLE_ASSERT=true"); }
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protected IRubyObject invokeMethod(IRubyObject recv, Object[] methodArgs) { Object[] reflectionArguments = packageArgumentsForReflection(methodArgs, recv); try { return (IRubyObject) getMethod().invoke( isStaticMethod ? null : recv, reflectionArguments); } catch (InvocationTargetException itExcptn) { if (itExcptn.getTargetException() instanceof RaiseException) { throw (RaiseException) itExcptn.getTargetException(); } else if (itExcptn.getTargetException() instanceof JumpException) { throw (JumpException) itExcptn.getTargetException(); } else { recv.getRuntime().getJavaSupport().handleNativeException( (Exception) itExcptn.getTargetException()); return recv.getRuntime().getNil(); } } catch (IllegalAccessException iaExcptn) { StringBuffer message = new StringBuffer(); message.append(iaExcptn.getMessage()); message.append(':'); message.append(" methodName=").append(methodName); message.append(" recv=").append(recv.toString()); message.append(" klass=").append(klass.getName()); message.append(" methodArgs=["); for (int i = 0; i < methodArgs.length; i++) { message.append(methodArgs[i]); message.append(' '); } message.append(']'); Asserts.assertNotReached(message.toString()); } catch (final IllegalArgumentException iaExcptn) { throw new RaiseException(recv.getRuntime(), "TypeError", iaExcptn.getMessage()); } throw new AssertError("[BUG] Run again with Asserts.ENABLE_ASSERT=true"); }
| 3,234,268
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protected IRubyObject invokeMethod(IRubyObject recv, Object[] methodArgs) { Object[] reflectionArguments = packageArgumentsForReflection(methodArgs, recv); try { return (IRubyObject) getMethod().invoke( isStaticMethod ? null : recv, reflectionArguments); } catch (InvocationTargetException itExcptn) { if (itExcptn.getTargetException() instanceof RaiseException) { throw (RaiseException) itExcptn.getTargetException(); } else if (itExcptn.getTargetException() instanceof JumpException) { throw (JumpException) itExcptn.getTargetException(); } else { recv.getRuntime().getJavaSupport().handleNativeException( (Exception) itExcptn.getTargetException()); return recv.getRuntime().getNil(); } } catch (IllegalAccessException iaExcptn) { StringBuffer message = new StringBuffer(); message.append(iaExcptn.getMessage()); message.append(':'); message.append(" methodName=").append(methodName); message.append(" recv=").append(recv.toString()); message.append(" klass=").append(klass.getName()); message.append(" methodArgs=["); for (int i = 0; i < methodArgs.length; i++) { message.append(methodArgs[i]); message.append(' '); } message.append(']'); Asserts.assertNotReached(message.toString()); } catch (final IllegalArgumentException iaExcptn) { throw new RaiseException(recv.getRuntime(), "TypeError", iaExcptn.getMessage()); } throw new AssertError("[BUG] Run again with Asserts.ENABLE_ASSERT=true"); }
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protected IRubyObject invokeMethod(IRubyObject recv, Object[] methodArgs) { Object[] reflectionArguments = packageArgumentsForReflection(methodArgs, recv); try { return (IRubyObject) getMethod().invoke( isStaticMethod ? null : recv, reflectionArguments); } catch (InvocationTargetException itExcptn) { if (itExcptn.getTargetException() instanceof RaiseException) { throw (RaiseException) itExcptn.getTargetException(); } else if (itExcptn.getTargetException() instanceof JumpException) { throw (JumpException) itExcptn.getTargetException(); } else { recv.getRuntime().getJavaSupport().handleNativeException( (Exception) itExcptn.getTargetException()); return recv.getRuntime().getNil(); } } catch (IllegalAccessException iaExcptn) { StringBuffer message = new StringBuffer(); message.append(iaExcptn.getMessage()); message.append(':'); message.append(" methodName=").append(methodName); message.append(" recv=").append(recv.toString()); message.append(" klass=").append(klass.getName()); message.append(" methodArgs=["); for (int i = 0; i < methodArgs.length; i++) { message.append(methodArgs[i]); message.append(' '); } message.append(']'); Asserts.assertNotReached(message.toString()); } catch (final IllegalArgumentException iaExcptn) { throw new RaiseException(recv.getRuntime(), "TypeError", iaExcptn.getMessage()); } throw new AssertError("[BUG] Run again with Asserts.ENABLE_ASSERT=true"); }
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private final Object[] packageRestArgumentsForReflection(final Object[] originalArgs) { IRubyObject[] restArray = new IRubyObject[originalArgs.length - (args.length - 1)]; Object[] result = new Object[args.length]; try { System.arraycopy( originalArgs, args.length - 1, restArray, 0, originalArgs.length - (args.length - 1)); } catch (ArrayIndexOutOfBoundsException aioobExcptn) { throw new RuntimeException( "Cannot call \"" + methodName + "\" in class \"" + klass.getName() + "\". " + getExpectedArgsString((IRubyObject[]) originalArgs)); } System.arraycopy(originalArgs, 0, result, 0, args.length - 1); result[args.length - 1] = restArray; return result; }
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private final Object[] packageRestArgumentsForReflection(final Object[] originalArgs) { IRubyObject[] restArray = new IRubyObject[originalArgs.length - (args.length - 1)]; Object[] result = new Object[args.length]; try { System.arraycopy( originalArgs, args.length - 1, restArray, 0, originalArgs.length - (args.length - 1)); } catch (ArrayIndexOutOfBoundsException aioobExcptn) { throw new RuntimeException( "Cannot call \"" + methodName + "\" in class \"" + klass.getName() + "\". " + getExpectedArgsString((IRubyObject[]) originalArgs)); } System.arraycopy(originalArgs, 0, result, 0, args.length - 1); result[args.length - 1] = restArray; return result; }
| 3,234,270
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private Object[] packageStaticArgumentsForReflection( Object[] arguments, Ruby ruby, IRubyObject rubyClass) { Object[] result = new Object[arguments.length + 2]; result[0] = ruby; result[1] = rubyClass; System.arraycopy(arguments, 0, result, 2, arguments.length); return result; }
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private Object[] packageStaticArgumentsForReflection( Object[] arguments, Ruby ruby, IRubyObject rubyClass) { Object[] result = new Object[arguments.length + 2]; result[0] = ruby; result[1] = rubyClass; System.arraycopy(arguments, 0, result, 2, arguments.length); return result; }
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public void run() { int period = now(); while( !isInterrupted()) { try { sleep(_duration); } catch (InterruptedException e) { continue; } int newPeriod = now(); while (period != newPeriod) { if (++period >= _periods) period = 0; synchronized(_locks[period]) { Runnable tasks[] = _tasks[period]; boolean repeats[] = _repeats[period]; for (int i = 0; i < tasks.length; i++) { if (tasks[i] != null) { try { tasks[i].run(); } catch (Exception e) { _syslog.warning(this + ": task " + tasks[i] + " threw an exception", e); } finally { if (!repeats[i]) { tasks[i] = null; } } } } } } } }
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public void run() { int period = now(); while( !isInterrupted()) { try { sleep(_duration); } catch (InterruptedException e) { break; } int newPeriod = now(); while (period != newPeriod) { if (++period >= _periods) period = 0; synchronized(_locks[period]) { Runnable tasks[] = _tasks[period]; boolean repeats[] = _repeats[period]; for (int i = 0; i < tasks.length; i++) { if (tasks[i] != null) { try { tasks[i].run(); } catch (Exception e) { _syslog.warning(this + ": task " + tasks[i] + " threw an exception", e); } finally { if (!repeats[i]) { tasks[i] = null; } } } } } } } }
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public boolean isWriteable() { return (modes & RDWR) != 0 || (modes & WRONLY) != 0 || (modes & CREAT) != 0; }
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public boolean isWriteable() { return isWritable(); }
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public RGBPane() { manager = new RGBPaneManager(this); }
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publicRGBPane() { manager=newRGBPaneManager(this); }
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private void buildBody() { contents = new JPanel(); contents.setBorder(BorderFactory.createEmptyBorder(5, 10, 5, 10)); GridBagLayout gridbag = new GridBagLayout(); contents.setLayout(gridbag); GridBagConstraints cst = new GridBagConstraints(); cst.ipadx = RenderingAgtUIF.H_SPACE; cst.weightx = 0.5; cst.fill = GridBagConstraints.HORIZONTAL; cst.anchor = GridBagConstraints.EAST; ChannelData[] channelData = eventManager.getChannelData(); Color color; int[] rgba; boolean active; for (int i = 0; i < channelData.length; i++) { rgba = eventManager.getRGBA(i); active = eventManager.isActive(i); color = new Color(rgba[0], rgba[1], rgba[2], rgba[3]); addRow(gridbag, cst, i, channelData[i], color, active); } }
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privatevoidbuildBody() { contents=newJPanel(); contents.setBorder(BorderFactory.createEmptyBorder(5,10,5,10)); GridBagLayoutgridbag=newGridBagLayout(); contents.setLayout(gridbag); GridBagConstraintscst=newGridBagConstraints(); cst.ipadx=RenderingAgtUIF.H_SPACE; cst.weightx=0.5; cst.fill=GridBagConstraints.HORIZONTAL; cst.anchor=GridBagConstraints.EAST; ChannelData[] channelData=eventManager.getChannelData(); Colorcolor; int[]rgba; booleanactive; for(inti=0;i<channelData.length;i++){ rgba=eventManager.getRGBA(i); active=eventManager.isActive(i); color=newColor(rgba[0],rgba[1],rgba[2],rgba[3]); addRow(gridbag,cst,i,channelData[i],color,active); } }
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public void setAnnotations(Map map) { if (model.getState() != LOADING_ANNOTATION) throw new IllegalStateException("This method can only be invoked" + " in the LOADING_ANNOTATION state."); if (map == null) throw new IllegalArgumentException("No annotations."); DOEditor editor = EditorFactory.getEditor(); if (editor == null) return; editor.setAnnotations(map); view.getLoadingWindow().setVisible(false); if (editor.hasThumbnail()) model.fireThumbnailLoading(); else model.setState(READY); fireStateChange(); view.addComponent(editor); }
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public void setAnnotations(Map map) { if (model.getState() != LOADING_ANNOTATION) throw new IllegalStateException("This method can only be invoked" + " in the LOADING_ANNOTATION state."); if (map == null) throw new IllegalArgumentException("No annotations."); EditorUI editor = EditorFactory.getEditor(); if (editor == null) return; editor.setAnnotations(map); view.getLoadingWindow().setVisible(false); if (editor.hasThumbnail()) model.fireThumbnailLoading(); else model.setState(READY); fireStateChange(); view.addComponent(editor); }
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public void setDataObjectThumbnail(BufferedImage thumbnail) { if (model.getState() != LOADING_THUMBNAIL) throw new IllegalStateException("This method can only be invoked" + " in the LOADING_THUMBNAIL state."); if (thumbnail == null) throw new IllegalArgumentException("No thumbnail."); if (model.getEditorType() == CLASSIFIER_EDITOR) { Classifier classifier = ClassifierFactory.getClassifier(); if (classifier == null) return; classifier.setThumbnail(thumbnail); } else { DOEditor editor = EditorFactory.getEditor(); if (editor == null) return; editor.setThumbnail(thumbnail); } model.setState(READY); }
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public void setDataObjectThumbnail(BufferedImage thumbnail) { if (model.getState() != LOADING_THUMBNAIL) throw new IllegalStateException("This method can only be invoked" + " in the LOADING_THUMBNAIL state."); if (thumbnail == null) throw new IllegalArgumentException("No thumbnail."); if (model.getEditorType() == CLASSIFIER_EDITOR) { Classifier classifier = ClassifierFactory.getClassifier(); if (classifier == null) return; classifier.setThumbnail(thumbnail); } else { EditorUI editor = EditorFactory.getEditor(); if (editor == null) return; editor.setThumbnail(thumbnail); } model.setState(READY); }
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public void setRetrievedClassification(Set paths) { if (model.getState() != LOADING_CLASSIFICATION) throw new IllegalStateException("This method should only be " + "invoked in the LOADING_CLASSIFICATION state."); if (paths == null) throw new IllegalArgumentException("No paths to set."); DOEditor editor = EditorFactory.getEditor(); if (editor == null) return; Set set = TreeViewerTranslator.transformHierarchy(paths); editor.setClassifiedNodes(set); model.setState(READY); view.getLoadingWindow().setVisible(false); }
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public void setRetrievedClassification(Set paths) { if (model.getState() != LOADING_CLASSIFICATION) throw new IllegalStateException("This method should only be " + "invoked in the LOADING_CLASSIFICATION state."); if (paths == null) throw new IllegalArgumentException("No paths to set."); EditorUI editor = EditorFactory.getEditor(); if (editor == null) return; Set set = TreeViewerTranslator.transformHierarchy(paths); editor.setClassifiedNodes(set); model.setState(READY); view.getLoadingWindow().setVisible(false); }
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public void showProperties(DataObject object, int editorType) { if (editorType == PROPERTIES_EDITOR || editorType == CREATE_EDITOR) model.setEditorType(editorType); else return; model.setDataObject(object); DOEditor panel = EditorFactory.getEditor(this, object, editorType); panel.addPropertyChangeListener(DOEditor.CANCEL_EDITION_PROPERTY, controller); if ((object instanceof ImageData) || (object instanceof DatasetData)) { model.fireAnnotationLoading(object); fireStateChange(); UIUtilities.centerAndShow(view.getLoadingWindow()); } else view.addComponent(panel); }
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public void showProperties(DataObject object, int editorType) { if (editorType == PROPERTIES_EDITOR || editorType == CREATE_EDITOR) model.setEditorType(editorType); else return; model.setDataObject(object); DOEditor panel = EditorFactory.getEditor(this, object, editorType); panel.addPropertyChangeListener(DOEditor.CANCEL_EDITION_PROPERTY, controller); if ((object instanceof ImageData) || (object instanceof DatasetData)) { model.fireAnnotationLoading(object); fireStateChange(); UIUtilities.centerAndShow(view.getLoadingWindow()); } else view.addComponent(panel); }
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public IRubyObject inspect() { // TODO Review this and either remove the comment, or do it // if (TYPE(obj) == T_OBJECT // && ROBJECT(obj)->iv_tbl // && ROBJECT(obj)->iv_tbl->num_entries > 0) { // VALUE str; // char *c; // // c = rb_class2name(CLASS_OF(obj)); // /*if (rb_inspecting_p(obj)) { // str = rb_str_new(0, strlen(c)+10+16+1); /* 10:tags 16:addr 1:eos */ // sprintf(RSTRING(str)->ptr, "#<%s:0x%lx ...>", c, obj); // RSTRING(str)->len = strlen(RSTRING(str)->ptr); // return str; // }*/ // str = rb_str_new(0, strlen(c)+6+16+1); /* 6:tags 16:addr 1:eos */ // sprintf(RSTRING(str)->ptr, "-<%s:0x%lx ", c, obj); // RSTRING(str)->len = strlen(RSTRING(str)->ptr); // return rb_protect_inspect(inspect_obj, obj, str); // } // return rb_funcall(obj, rb_intern("to_s"), 0, 0); // } return callMethod("to_s"); }
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public IRubyObject inspect() { // TODO Review this and either remove the comment, or do it // if (TYPE(obj) == T_OBJECT // && ROBJECT(obj)->iv_tbl // && ROBJECT(obj)->iv_tbl->num_entries > 0) { // VALUE str; // char *c; // // c = rb_class2name(CLASS_OF(obj)); // /*if (rb_inspecting_p(obj)) { // str = rb_str_new(0, strlen(c)+10+16+1); /* 10:tags 16:addr 1:eos */ // sprintf(RSTRING(str)->ptr, "#<%s:0x%lx ...>", c, obj); // RSTRING(str)->len = strlen(RSTRING(str)->ptr); // return str; // }*/ // str = rb_str_new(0, strlen(c)+6+16+1); /* 6:tags 16:addr 1:eos */ // sprintf(RSTRING(str)->ptr, "-<%s:0x%lx ", c, obj); // RSTRING(str)->len = strlen(RSTRING(str)->ptr); // return rb_protect_inspect(inspect_obj, obj, str); // } // return rb_funcall(obj, rb_intern("to_s"), 0, 0); // } return callMethod("to_s"); }
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public XMLReport(ProjectData projectData, File destinationDir, File sourceDirectory) throws IOException { this.sourceDirectory = sourceDirectory; pw = new PrintWriter(new FileWriter(new File(destinationDir, "coverage.xml"))); try { println("<?xml version=\"1.0\"?>"); println("<!DOCTYPE coverage SYSTEM \"http://cobertura.sourceforge.net/xml/" + coverageDTD + "\">"); println(""); // TODO: Set a schema? //println("<coverage " + sourceDirectories.toString() + " xmlns=\"http://cobertura.sourceforge.net\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://cobertura.sourceforge.net/xml/coverage.xsd\">"); println("<coverage line-rate=\"" + projectData.getLineCoverageRate() + "\" branch-rate=\"" + projectData.getBranchCoverageRate() + "\" version=\"" + Header.version() + "\" timestamp=\"" + new Date().getTime() + "\">"); increaseIndentation(); dumpSources(sourceDirectory); dumpPackages(projectData); decreaseIndentation(); println("</coverage>"); } finally { pw.close(); } }
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public XMLReport(ProjectData projectData, File destinationDir, File sourceDirectory) throws IOException { this.sourceDirectory = sourceDirectory; pw = new PrintWriter(new FileWriter(new File(destinationDir, "coverage.xml"))); try { println("<?xml version=\"1.0\"?>"); println("<!DOCTYPE coverage SYSTEM \"http://cobertura.sourceforge.net/xml/" + coverageDTD + "\">"); println(""); // TODO: Set a schema? //println("<coverage " + sourceDirectories.toString() + " xmlns=\"http://cobertura.sourceforge.net\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://cobertura.sourceforge.net/xml/coverage.xsd\">"); println("<coverage line-rate=\"" + projectData.getLineCoverageRate() + "\" branch-rate=\"" + projectData.getBranchCoverageRate() + "\" version=\"" + Header.version() + "\" timestamp=\"" + new Date().getTime() + "\">"); increaseIndentation(); dumpSources(sourceDirectory); dumpPackages(projectData); decreaseIndentation(); println("</coverage>"); } finally { pw.close(); } }
| 3,234,282
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public XMLReport(ProjectData projectData, File destinationDir, File sourceDirectory) throws IOException { this.sourceDirectory = sourceDirectory; pw = new PrintWriter(new FileWriter(new File(destinationDir, "coverage.xml"))); try { println("<?xml version=\"1.0\"?>"); println("<!DOCTYPE coverage SYSTEM \"http://cobertura.sourceforge.net/xml/" + coverageDTD + "\">"); println(""); // TODO: Set a schema? //println("<coverage " + sourceDirectories.toString() + " xmlns=\"http://cobertura.sourceforge.net\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://cobertura.sourceforge.net/xml/coverage.xsd\">"); println("<coverage line-rate=\"" + projectData.getLineCoverageRate() + "\" branch-rate=\"" + projectData.getBranchCoverageRate() + "\" version=\"" + Header.version() + "\" timestamp=\"" + new Date().getTime() + "\">"); increaseIndentation(); dumpSources(sourceDirectory); dumpPackages(projectData); decreaseIndentation(); println("</coverage>"); } finally { pw.close(); } }
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public XMLReport(ProjectData projectData, File destinationDir, File sourceDirectory) throws IOException { this.sourceDirectory = sourceDirectory; pw = new PrintWriter(new FileWriter(new File(destinationDir, "coverage.xml"))); try { println("<?xml version=\"1.0\"?>"); println("<!DOCTYPE coverage SYSTEM \"http://cobertura.sourceforge.net/xml/" + coverageDTD + "\">"); println(""); // TODO: Set a schema? //println("<coverage " + sourceDirectories.toString() + " xmlns=\"http://cobertura.sourceforge.net\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://cobertura.sourceforge.net/xml/coverage.xsd\">"); println("<coverage line-rate=\"" + projectData.getLineCoverageRate() + "\" branch-rate=\"" + projectData.getBranchCoverageRate() + "\" version=\"" + Header.version() + "\" timestamp=\"" + new Date().getTime() + "\">"); increaseIndentation(); dumpSources(sourceDirectory); dumpPackages(projectData); decreaseIndentation(); println("</coverage>"); } finally { pw.close(); } }
| 3,234,283
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public XMLReport(ProjectData projectData, File destinationDir, File sourceDirectory) throws IOException { this.sourceDirectory = sourceDirectory; pw = new PrintWriter(new FileWriter(new File(destinationDir, "coverage.xml"))); try { println("<?xml version=\"1.0\"?>"); println("<!DOCTYPE coverage SYSTEM \"http://cobertura.sourceforge.net/xml/" + coverageDTD + "\">"); println(""); // TODO: Set a schema? //println("<coverage " + sourceDirectories.toString() + " xmlns=\"http://cobertura.sourceforge.net\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://cobertura.sourceforge.net/xml/coverage.xsd\">"); println("<coverage line-rate=\"" + projectData.getLineCoverageRate() + "\" branch-rate=\"" + projectData.getBranchCoverageRate() + "\" version=\"" + Header.version() + "\" timestamp=\"" + new Date().getTime() + "\">"); increaseIndentation(); dumpSources(sourceDirectory); dumpPackages(projectData); decreaseIndentation(); println("</coverage>"); } finally { pw.close(); } }
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public XMLReport(ProjectData projectData, File destinationDir, File sourceDirectory) throws IOException { this.sourceDirectory = sourceDirectory; pw = new PrintWriter(new FileWriter(new File(destinationDir, "coverage.xml"))); try { println("<?xml version=\"1.0\"?>"); println("<!DOCTYPE coverage SYSTEM \"http://cobertura.sourceforge.net/xml/" + coverageDTD + "\">"); println(""); // TODO: Set a schema? //println("<coverage " + sourceDirectories.toString() + " xmlns=\"http://cobertura.sourceforge.net\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://cobertura.sourceforge.net/xml/coverage.xsd\">"); println("<coverage line-rate=\"" + projectData.getLineCoverageRate() + "\" branch-rate=\"" + projectData.getBranchCoverageRate() + "\" version=\"" + Header.version() + "\" timestamp=\"" + new Date().getTime() + "\">"); increaseIndentation(); dumpSources(sourceDirectory); dumpPackages(projectData); decreaseIndentation(); println("</coverage>"); } finally { pw.close(); } }
| 3,234,284
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private void dumpClass(ClassData classData) { logger.debug("Dumping class " + classData.getName()); double ccn = Util.getCCN(new File(sourceDirectory, classData .getSourceFileName()), false); println("<class name=\"" + classData.getName() + "\" filename=\"" + classData.getSourceFileName() + "\" line-rate=\"" + classData.getLineCoverageRate() + "\" branch-rate=\"" + classData.getBranchCoverageRate() + "\" complexity=\"" + ccn + "\"" + ">"); increaseIndentation(); dumpMethods(classData); dumpLines(classData); decreaseIndentation(); println("</class>"); }
|
private void dumpClass(ClassData classData) { logger.debug("Dumping class " + classData.getName()); double ccn = Util.getCCN(new File(sourceDirectory, classData .getSourceFileName()), false); println("<class name=\"" + classData.getName() + "\" filename=\"" + classData.getSourceFileName() + "\" line-rate=\"" + classData.getLineCoverageRate() + "\" branch-rate=\"" + classData.getBranchCoverageRate() + "\" complexity=\"" + ccn + "\"" + ">"); increaseIndentation(); dumpMethods(classData); dumpLines(classData); decreaseIndentation(); println("</class>"); }
| 3,234,285
|
private void dumpPackage(PackageData packageData) { logger.debug("Dumping package " + packageData.getName()); double ccn = Util.getCCN(new File(sourceDirectory, packageData .getSourceFileName()), false); println("<package name=\"" + packageData.getName() + "\" line-rate=\"" + packageData.getLineCoverageRate() + "\" branch-rate=\"" + packageData.getBranchCoverageRate() + "\" complexity=\"" + ccn + "\"" + ">"); increaseIndentation(); dumpSourceFiles(packageData); decreaseIndentation(); println("</package>"); }
|
private void dumpPackage(PackageData packageData) { logger.debug("Dumping package " + packageData.getName()); double ccn = Util.getCCN(new File(sourceDirectory, packageData .getSourceFileName()), false); println("<package name=\"" + packageData.getName() + "\" line-rate=\"" + packageData.getLineCoverageRate() + "\" branch-rate=\"" + packageData.getBranchCoverageRate() + "\" complexity=\"" + ccn + "\"" + ">"); increaseIndentation(); dumpSourceFiles(packageData); decreaseIndentation(); println("</package>"); }
| 3,234,286
|
private void dumpSources(File sourceDirectory) { if (sourceDirectory == null) return; println("<sources>"); increaseIndentation(); dumpSource(sourceDirectory); decreaseIndentation(); println("</sources>"); }
|
private void dumpSources(File sourceDirectory) { if (sourceDirectory == null) return; println("<sources>"); increaseIndentation(); dumpSource(sourceDirectory); decreaseIndentation(); println("</sources>"); }
| 3,234,287
|
private void dumpSources(File sourceDirectory) { if (sourceDirectory == null) return; println("<sources>"); increaseIndentation(); dumpSource(sourceDirectory); decreaseIndentation(); println("</sources>"); }
|
private void dumpSources(File sourceDirectory) { if (sourceDirectory == null) return; println("<sources>"); increaseIndentation(); dumpSource(sourceDirectory); decreaseIndentation(); println("</sources>"); }
| 3,234,288
|
private void dumpSources(File sourceDirectory) { if (sourceDirectory == null) return; println("<sources>"); increaseIndentation(); dumpSource(sourceDirectory); decreaseIndentation(); println("</sources>"); }
|
private void dumpSources(File sourceDirectory) { if (sourceDirectory == null) return; println("<sources>"); increaseIndentation(); dumpSource(sourceDirectory); decreaseIndentation(); println("</sources>"); }
| 3,234,289
|
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