GNU bug report logs - #63272
29.0.90; xref fails on long lines

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Package: emacs;

Reported by: Juri Linkov <juri <at> linkov.net>

Date: Thu, 4 May 2023 15:16:03 UTC

Severity: normal

Tags: notabug

Found in version 29.0.90

Fixed in version 29.0.60

Done: Juri Linkov <juri <at> linkov.net>

Bug is archived. No further changes may be made.

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From: Gregory Heytings <gregory <at> heytings.org>
To: Juri Linkov <juri <at> linkov.net>
Cc: 63272 <at> debbugs.gnu.org
Subject: bug#63272: 29.0.90; xref fails on long lines
Date: Thu, 04 May 2023 15:58:02 +0000

>
> 1. Create a file with a long line, e.g. type
>
> a C-u 500000 b c
>
> Save the file and commit to git.
>
> (long-line-optimizations-p returns t)
>
> 2. Try to search a regexp that matches the whole long line, e.g.
>
>   C-x p g a.*c RET
>
> Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")
>

That seems to be a problem with/limitation of the regexp engine that is 
not immediately related to (displaying) long lines.  After (setq 
long-line-threshold nil) you will get the same error.
This bug report was last modified 2 years and 15 days ago.

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