GNU bug report logs - #31796
26.1; dired-do-find-regexp-and-replace fails to find multiline regexps

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From: Juri Linkov <juri <at> linkov.net>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: Eli Zaretskii <eliz <at> gnu.org>, abela <at> chalmers.se, 31796 <at> debbugs.gnu.org
Subject: bug#31796: 27.1; dired-do-find-regexp-and-replace fails to find multiline regexps
Date: Sun, 06 Dec 2020 23:00:24 +0200

>> dired-do-find-regexp uses 'ignores' to filter out ignored files.
>> You could add another filter to filter out files without matches
>> using 'grep -PzL'.
>
> Right. This is sorta a backup plan. Although, when the number of files to
> search can be counted on one hand, there's nothing too bad in doing the
> search in Emacs.

Another backup plan is to use ripgrep.  Its multiline handling with -U
also allows to search words ignoring any whitespace, even newlines.
This is like isearch-lax-whitespace using search-whitespace-regexp
when it contains a newline, e.g. "[ \t\r\n]+".

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