Bugs item #1152762, was opened at 2005-02-27 01:00
Message generated for change (Comment added) made by akuchling
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Category: Python Library
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: John McPherson (jrm21)
Assigned to: Nobody/Anonymous (nobody)
Summary: curses.textpad raises error
Initial Comment:
textpad seems to have a bug when you backspace from the
start of a line. By default, stripspaces is on, so it
tries to skip any spaces on the previous line. But if
there are no spaces, it raises a curses error and makes
the app quit.
Reproduce by:
$ python /usr/lib/python2.3/curses/textpad.py
type "1234567890" into the textpad
press backspace twice.
The problem is _end_of_line() function doing "last =
last + 1"
I think a better way would be to start at the end of
the line (last=self.maxx), and skip backwards while
"last" is a space:
while last > 0 and ascii.ascii(self.win.inch(y,
last)) == ascii.SP:
last -= 1
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>Comment By: A.M. Kuchling (akuchling)
Date: 2005-06-01 20:07
Message:
Logged In: YES
user_id=11375
Thanks for reporting this problem!
Skipping backwards doesn't really solve the problem, because the function
is supposed to return the index of the last space; even if you go
backwards, you still need to increment 'last' by 1 to get the index of the
space. I think the fix is to do 'last = min(last+1, self.maxx)', and this is
the fix I'll check in.
----------------------------------------------------------------------
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