GNU bug report logs - #53680
Endless loop in peculiar case of string-match and string-match-p 27.02 and 28.0.50

Previous Next

Package: emacs;

Reported by: Christian Johansson <christian <at> cvj.se>

Date: Tue, 1 Feb 2022 07:38:01 UTC

Severity: normal

Tags: confirmed, notabug

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

Full log

Message #19 received at 53680 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Christian Johansson <christian <at> cvj.se>, 53680 <at> debbugs.gnu.org
Subject: Re: bug#53680: Endless loop in peculiar case of string-match and
 string-match-p 27.02 and 28.0.50
Date: Tue, 01 Feb 2022 12:25:43 +0100

On Feb 01 2022, Lars Ingebrigtsen wrote:

> This simplified version also infloops:
>
> (string-match
>  "implements\\([\r\t ]*[\\a-zA-Z0-9_]+,?\\)+{$"

This has the same search space explosion.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."
This bug report was last modified 3 years and 105 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.