* bug#18462: Emacs freeze with python mode and M-q
@ 2014-09-12 13:37 Gaetan Kenway
2014-09-30 20:35 ` Leonardo Nobrega
0 siblings, 1 reply; 3+ messages in thread
From: Gaetan Kenway @ 2014-09-12 13:37 UTC (permalink / raw)
To: 18462
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I ran across a odd bug the other day. Essentially, when M-q is run with an
open bracket in python mode, emacs will freeze.
To replicate the error:
$ emacs test.py
type:
def test(
then hit M-q
The version of emacs I'm using is:
GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7)
of 2014-03-07 on lamiak, modified by Debian
Its not a huge deal, it just struck me as odd since it generally really
difficult to get emacs to crash.
Thanks,
Gaetan
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^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#18462: Emacs freeze with python mode and M-q
2014-09-12 13:37 bug#18462: Emacs freeze with python mode and M-q Gaetan Kenway
@ 2014-09-30 20:35 ` Leonardo Nobrega
2014-09-30 23:01 ` Stefan Monnier
0 siblings, 1 reply; 3+ messages in thread
From: Leonardo Nobrega @ 2014-09-30 20:35 UTC (permalink / raw)
To: 18462
The second loop in python-fill-paren moves the point until the syntax
context changes. If it doesn't find a close-paren before the end of
the buffer, it loops forever.
ChangeLog entry:
* lisp/progmodes/python.el (python-fill-paren): Break
end-of-region loop when it reaches point-max.
Patch:
=== modified file 'lisp/progmodes/python.el'
*** lisp/progmodes/python.el 2014-09-29 18:14:08 +0000
--- lisp/progmodes/python.el 2014-09-30 20:14:37 +0000
*************** JUSTIFY should be used (if applicable) a
*** 3300,3306 ****
(end-of-line)
(when (not (python-syntax-context 'paren))
(skip-syntax-backward "^)")))
! (while (python-syntax-context 'paren)
(goto-char (1+ (point-marker))))
(point-marker)))
(let ((paragraph-start "\f\\|[ \t]*$")
--- 3300,3307 ----
(end-of-line)
(when (not (python-syntax-context 'paren))
(skip-syntax-backward "^)")))
! (while (and (python-syntax-context 'paren)
! (< (point) (point-max)))
(goto-char (1+ (point-marker))))
(point-marker)))
(let ((paragraph-start "\f\\|[ \t]*$")
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2014-09-12 13:37 bug#18462: Emacs freeze with python mode and M-q Gaetan Kenway
2014-09-30 20:35 ` Leonardo Nobrega
2014-09-30 23:01 ` Stefan Monnier
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