| '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) |
