GNU bug report logs - #14013
24.3.50; dired-isearch-filenames-regexp is matching text outside filenames

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Juri Linkov <juri <at> jurta.org>
Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>, 14013 <at> debbugs.gnu.org
Subject: bug#14013: 24.3.50; dired-isearch-filenames-regexp is matching text outside filenames
Date: Sun, 03 Jul 2022 19:34:26 +0200

Juri Linkov <juri <at> jurta.org> writes:

> -		   (looking-at (cond
> -				((functionp isearch-regexp-function)
> -				 (funcall isearch-regexp-function isearch-string t))
> -				(isearch-regexp-function (word-search-regexp isearch-string t))
> -				(isearch-regexp isearch-string)
> -				(t (regexp-quote isearch-string)))))
> +		   ;; Like `looking-at' but uses search functions:
> +		   (let ((isearch-forward t))
> +		     (isearch-search-string
> +		      (concat "\\=\\(?:" isearch-string "\\)") nil t)))
>  	       (error nil))

These lines seem to break backwards char-fold isearch for me.  Test
case:

Insert "creme" in an empty buffer (yes, all just ascii latin chars), go
to eob, and C-r M-s ' creme ==> fails.

Works with forward search and non-char-folding backward search.

Michael.

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