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- 'Provides "Strip trailing whitespace" under the "Format" menu.'
- class RstripExtension:
- menudefs = [
- ('format', [None, ('Strip trailing whitespace', '<<do-rstrip>>'), ] ), ]
- def __init__(self, editwin):
- self.editwin = editwin
- self.editwin.text.bind("<<do-rstrip>>", self.do_rstrip)
- def do_rstrip(self, event=None):
- text = self.editwin.text
- undo = self.editwin.undo
- undo.undo_block_start()
- end_line = int(float(text.index('end')))
- for cur in range(1, end_line):
- txt = text.get('%i.0' % cur, '%i.end' % cur)
- raw = len(txt)
- cut = len(txt.rstrip())
- # Since text.delete() marks file as changed, even if not,
- # only call it when needed to actually delete something.
- if cut < raw:
- text.delete('%i.%i' % (cur, cut), '%i.end' % cur)
- undo.undo_block_stop()
- if __name__ == "__main__":
- import unittest
- unittest.main('idlelib.idle_test.test_rstrip', verbosity=2, exit=False)
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