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"""Example extension, also used for testing. |
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See extend.txt for more details on creating an extension. |
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See config-extension.def for configuring an extension. |
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""" |
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from idlelib.config import idleConf |
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from functools import wraps |
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def format_selection(format_line): |
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"Apply a formatting function to all of the selected lines." |
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@wraps(format_line) |
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def apply(self, event=None): |
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head, tail, chars, lines = self.formatter.get_region() |
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for pos in range(len(lines) - 1): |
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line = lines[pos] |
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lines[pos] = format_line(self, line) |
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self.formatter.set_region(head, tail, chars, lines) |
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return 'break' |
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return apply |
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class ZzDummy: |
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"""Prepend or remove initial text from selected lines.""" |
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menudefs = [ |
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('format', [ |
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('Z in', '<<z-in>>'), |
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('Z out', '<<z-out>>'), |
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] ) |
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] |
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def __init__(self, editwin): |
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"Initialize the settings for this extension." |
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self.editwin = editwin |
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self.text = editwin.text |
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self.formatter = editwin.fregion |
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@classmethod |
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def reload(cls): |
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"Load class variables from config." |
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cls.ztext = idleConf.GetOption('extensions', 'ZzDummy', 'z-text') |
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@format_selection |
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def z_in_event(self, line): |
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"""Insert text at the beginning of each selected line. |
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This is bound to the <<z-in>> virtual event when the extensions |
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are loaded. |
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""" |
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return f'{self.ztext}{line}' |
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@format_selection |
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def z_out_event(self, line): |
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"""Remove specific text from the beginning of each selected line. |
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This is bound to the <<z-out>> virtual event when the extensions |
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are loaded. |
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""" |
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zlength = 0 if not line.startswith(self.ztext) else len(self.ztext) |
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return line[zlength:] |
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ZzDummy.reload() |
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if __name__ == "__main__": |
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import unittest |
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unittest.main('idlelib.idle_test.test_zzdummy', verbosity=2, exit=False) |
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