33 lines
1 KiB
Python
33 lines
1 KiB
Python
'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)
|