Problems with replace in rectangular selection

Hi,
I'm using wxSTC and i would like to let users make a replace on a rectangular selection.
Not problems since in the stc document there are unicode chars
Ah, I'm using wx2.5.3msw unicode version

This is the code i'm using:

    def ReplaceRect(self, evt):
        doc = self.GetTextCtrl() # this is my stc document
        if not doc:
            wx.Bell()
            return
        if not doc.SelectionIsRectangle():
            wx.Bell()
            return
        else:
            dlg = wx.TextEntryDialog(self, 'Insert replace words here', 'Replace with', '')
            if dlg.ShowModal() == wx.ID_OK:
                replaced_text = dlg.GetValue()
                s_start = min(doc.GetSelectionStart(), doc.GetSelectionEnd())
                s_end = max(doc.GetSelectionStart(), doc.GetSelectionEnd())
                l_start = doc.LineFromPosition(s_start)
                l_end = doc.LineFromPosition(s_end)
                c_start = doc.GetColumn(s_start)
                c_end = doc.GetColumn(s_end)
                while l_start <= l_end:
                    pos = doc.PositionFromLine(l_start) + c_start
                    end_position = pos + (c_end - c_start)
                    if (end_position) > doc.GetLineEndPosition(l_start):
                        end_position = doc.GetLineEndPosition(l_start)
                    doc.SetSelection(pos, end_position)
                    doc.ReplaceSelection( replaced_text )
                    l_start += 1

When in a line of the selection is present a char, let's say € (euro symbol), the application crashes.
The problem is on the setSelection and replaceSelection due to the fact unicode chars have lenght > 1. but i don't know how to fix the problem and the script.
Can anyone help me?
Thanks in advance

Alessandro Crugnola - sephiroth

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