"""
Rstrip Extension:
Provides "Do rstrip()" under the "Format" menu.

Author: Roger D. Serwy
        roger.serwy@gmail.com
Date:   2009-05-28


Add these lines to config-extensions.def

[RstripExtension]
enable=1
enable_shell=0
enable_editor=1

"""

class RstripExtension:

    menudefs = [
        ('format', [None,
               ('Do rstrip()', '<<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'))) + 1
        for cur in range(1, end_line):
            txt = text.get('%i.0' % cur, '%i.0 lineend' % cur)
            cut = len(txt.rstrip()) 
            text.delete('%i.%i' % (cur, cut), '%i.0 lineend' % cur)

        undo.undo_block_stop()