GNU bug report logs - #61514
30.0.50; sadistically long xml line hangs emacs

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Package: emacs;

Reported by: "Mark A. Hershberger" <mah <at> everybody.org>

Date: Tue, 14 Feb 2023 21:05:02 UTC

Severity: normal

Found in version 30.0.50

Done: Gregory Heytings <gregory <at> heytings.org>

Bug is archived. No further changes may be made.

Full log

Message #158 received at 61514 <at> debbugs.gnu.org (full text, mbox):

From: Gregory Heytings <gregory <at> heytings.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 61514 <at> debbugs.gnu.org, mah <at> everybody.org
Subject: Re: bug#61514: 30.0.50; sadistically long xml line hangs emacs
Date: Mon, 20 Feb 2023 17:34:45 +0000

>
> I simplified it down to:
>
> (with-current-buffer (get-buffer-create "*bug*")
>  (erase-buffer)
>  (insert (make-string 266666 ?n))
>  (goto-char (point-min))
>  (looking-at "[[:alpha:]]*=*"))
>
> This fails with 266666, and succeeds with 266665.
>

Even shorter:

(with-current-buffer (get-buffer-create "*bug*")
  (erase-buffer)
  (insert (make-string 266666 ?x))
  (goto-char (point-min))
  (looking-at "x*=*"))

Again this fails with 266666, and succeeds with 266665.

Likewise:

(with-current-buffer (get-buffer-create "*bug*")
  (erase-buffer)
  (insert (make-string 266666 ?x))
  (insert "=")
  (goto-char (point-min))
  (looking-at "x*=*"))

fails with 266666 and succeeds with 266665.
This bug report was last modified 2 years and 147 days ago.

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