GNU bug report logs - #55798
font-lock-fontify-syntactically-region uses point without initializing it.

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Package: emacs;

Reported by: Alan Mackenzie <acm <at> muc.de>

Date: Sat, 4 Jun 2022 19:18:02 UTC

Severity: normal

Tags: notabug

Done: Alan Mackenzie <acm <at> muc.de>

Bug is archived. No further changes may be made.

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From: Alan Mackenzie <acm <at> muc.de>
To: 55798 <at> debbugs.gnu.org
Subject: bug#55798: font-lock-fontify-syntactically-region uses point without initializing it.
Date: Sat, 4 Jun 2022 19:17:42 +0000

Hello, Emacs.

Emacs master branch:

* emacs/lisp/font-lock.el (font-lock-fontify-syntactically-region): At
line 26 of this function, appears:

    (setq state (parse-partial-sexp (point) end nil nil state
                                    'syntax-table))

..  However, there is no goto-char or other way of setting point earlier
in the function (except in one arm of an `if' form).  Neither is point
defined to have a defined setting at the entry to the function.

This is a bug.

-- 
Alan Mackenzie (Nuremberg, Germany).
This bug report was last modified 3 years and 45 days ago.

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