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From: Stephen Berman <stephen.berman@gmx.net>
To: help-gnu-emacs@gnu.org
Subject: Re: Stack overflow in regexp matcher
Date: Sun, 06 Feb 2011 14:31:43 +0100	[thread overview]
Message-ID: <87wrldcmrk.fsf@escher.home> (raw)
In-Reply-To: m139o1cucx.fsf@gmail.com

On Sun, 06 Feb 2011 10:47:42 +0000 Dan Davison <dandavison7@gmail.com> wrote:

> The following fails with "Stack overflow in regexp matcher" in emacs 23
> and 24:
>
> (string-match
>  "^\\[.+\\]$"
>  (concat
>   "["
>   (mapconcat (lambda (i) "x") (number-sequence 1 33500) "")
>   "]"))
>
> This surprised me; I assumed that the ^ and $ anchors, and the simple
> ".+" requirement in the middle would result in a simple, efficient
> regexp.

It does not fail on my GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+
Version 2.20.1) of 2011-01-13, but returns, as expected, 0.

Steve Berman




  reply	other threads:[~2011-02-06 13:31 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-06 10:47 Stack overflow in regexp matcher Dan Davison
2011-02-06 13:31 ` Stephen Berman [this message]
2011-02-06 14:01   ` guivho
2011-02-06 14:17   ` Eli Zaretskii
2011-02-06 14:30     ` Dan Davison
2011-02-06 16:02     ` Stephen Berman
  -- strict thread matches above, loose matches on Subject: below --
2014-10-24  6:41 Alan Schmitt
2014-10-24 19:02 ` Charles Berry
2014-10-24 19:51   ` Gregor Zattler
2014-10-25 17:00     ` Charles C. Berry
2014-10-25 18:34       ` Charles C. Berry
2014-11-28 18:33         ` Alan Schmitt
2014-10-26 11:11       ` Alan Schmitt
2014-10-25  9:24   ` Alan Schmitt
     [not found] <mailman.0.1296989279.10345.help-gnu-emacs@gnu.org>
2011-02-07 20:24 ` Stefan Monnier
2011-02-08 22:58   ` Dan Davison
2010-11-20 16:03 Michael Brand
2010-11-28 20:08 ` Matt Lundin
2009-12-16 17:15 akaiser
2009-12-17 17:01 ` Barry Margolin
2009-12-17 22:10   ` Ilya Zakharevich
2009-12-17 22:13   ` akaiser
2003-10-16 16:35 Sam Steingold
2003-10-16 18:56 ` Stefan Monnier
2003-10-17  6:13   ` Stephen J. Turnbull
2003-10-17 13:55     ` Stefan Monnier
2003-10-17 14:24       ` Andreas Schwab

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