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30 lines
868 B
30 lines
868 B
6 years ago
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'Provides "Strip trailing whitespace" under the "Format" menu.'
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class Rstrip:
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def __init__(self, editwin):
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self.editwin = editwin
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def do_rstrip(self, event=None):
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text = self.editwin.text
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undo = self.editwin.undo
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undo.undo_block_start()
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end_line = int(float(text.index('end')))
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for cur in range(1, end_line):
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txt = text.get('%i.0' % cur, '%i.end' % cur)
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raw = len(txt)
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cut = len(txt.rstrip())
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# Since text.delete() marks file as changed, even if not,
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# only call it when needed to actually delete something.
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if cut < raw:
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text.delete('%i.%i' % (cur, cut), '%i.end' % cur)
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undo.undo_block_stop()
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if __name__ == "__main__":
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from unittest import main
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main('idlelib.idle_test.test_rstrip', verbosity=2,)
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