1'Provides "Strip trailing whitespace" under the "Format" menu.'
2
3__author__ = "Roger D. Serwy <roger.serwy at gmail.com>"
4
5class RstripExtension:
6
7    menudefs = [
8        ('format', [None,
9               ('Strip trailing whitespace', '<<do-rstrip>>'),
10       ]),]
11
12    def __init__(self, editwin):
13        self.editwin = editwin
14        self.editwin.text.bind("<<do-rstrip>>", self.do_rstrip)
15
16    def do_rstrip(self, event=None):
17
18        text = self.editwin.text
19        undo = self.editwin.undo
20
21        undo.undo_block_start()
22
23        end_line = int(float(text.index('end'))) + 1
24        for cur in range(1, end_line):
25            txt = text.get('%i.0' % cur, '%i.0 lineend' % cur)
26            cut = len(txt.rstrip())
27            text.delete('%i.%i' % (cur, cut), '%i.0 lineend' % cur)
28
29        undo.undo_block_stop()
30