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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From: David Kastrup <dak <at> gnu.org>
To: Tassilo Horn <tsdh <at> gnu.org>
Cc: Nils Kanning <nils <at> kanning.de>, 22146 <at> debbugs.gnu.org, Mosè Giordano <mose <at> gnu.org>
Subject: bug#22146: Stack overflow in reftex-parse-all
Date: Sun, 13 Dec 2015 18:52:48 +0100

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

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

> Isn't the syntax "\\[[^]]\\{0,1000\\}\\<label"?  I tried going up to a
> maximum of 30000 and it still didn't overflow, so I think that's an
> appropriate fix (say, maybe 2000 instead of 1000 to be extra safe).
> Feel free to change `reftex-label-regexps' accordingly.
>
> Interestingly, "x\\{0,40000\\}" gives an error:
>
>   (invalid-regexp "Invalid content of \\{\\}")
>
> So there seems to be a (pretty random) limit...

I'd guess that the regexp library translates this into a "short", so the
limit would be SHORT_MAX, namely 32767.

-- 
David Kastrup
This bug report was last modified 9 years and 164 days ago.

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