GNU bug report logs - #22146
Stack overflow in reftex-parse-all

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Package: auctex;

Reported by: Nils Kanning <nils <at> kanning.de>

Date: Fri, 11 Dec 2015 21:19:02 UTC

Severity: normal

Done: Tassilo Horn <tsdh <at> gnu.org>

Bug is archived. No further changes may be made.

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Message #20 received at 22146 <at> debbugs.gnu.org (full text, mbox):

From: David Kastrup <dak <at> gnu.org>
To: Mosè Giordano <mose <at> gnu.org>
Cc: Nils Kanning <nils <at> kanning.de>, 22146 <at> debbugs.gnu.org,
 Tassilo Horn <tsdh <at> gnu.org>
Subject: Re: bug#22146: Stack overflow in reftex-parse-all
Date: Sat, 12 Dec 2015 11:05:12 +0100

Mosè Giordano <mose <at> gnu.org> writes:

> I'm not completely sure how to fix a "Stack overflow in regexp
> matcher" error: the problem is that it matches nothing or too much?

It has incomplete matches in too many different ways.  Something like

.*.*

is a trivial example of stuff that can usually match in too many
different ways.  A nice regexp is one where each character of an
incomplete match is only a candidate for a single component of the
regexp.

An ugly regexp is one where adding one character to the match grows the
possibly match/pattern correspondences by more than one repeatedly.

-- 
David Kastrup
This bug report was last modified 9 years and 163 days ago.

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