Subject: bug#55798: font-lock-fontify-syntactically-region uses point without initializing it.

From: Lars Ingebrigtsen <[email-masked]>
Date: Sun, 05 Jun 2022 16:23:35 +0200

Alan Mackenzie <[email-masked]> writes:

> * 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.

(syntax-ppss start) (called earlier) will skip to start, won't it?

-- 
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   bloggy blog: http://lars.ingebrigtsen.no