GNU bug report logs - #58992
28.2; "lax space matching" no longer works

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Package: emacs;

Reported by: Vincent Lefevre <vincent <at> vinc17.net>

Date: Thu, 3 Nov 2022 16:54:02 UTC

Severity: normal

Found in version 28.2

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Juri Linkov <juri <at> linkov.net>
To: Gregory Heytings <gregory <at> heytings.org>
Cc: Eli Zaretskii <eliz <at> gnu.org>, Vincent Lefevre <vincent <at> vinc17.net>, 58992 <at> debbugs.gnu.org
Subject: bug#58992: 28.2; "lax space matching" no longer works
Date: Thu, 03 Nov 2022 20:36:45 +0200

> Okay, this is because of:
>
> commit 74d091a0a665da5dc01989d1b06a61ee21b975b2
> Author: Lars Ingebrigtsen <larsi <at> gnus.org>
> Date:   Fri Sep 10 12:27:28 2021 +0200
>
>     Change the default value of search-whitespace-regexp
>
>     * lisp/isearch.el (search-whitespace-regexp): Change the default
>     to always exclude newlines from the set (bug#21278).  It used to
>     be mode-dependent whether newlines were included or not, and this
>     was confusing as a user interface.
>
> which changed the default value of search-whitespace-regexp from "\\s-+" to
> "[ \t]".

"\\s-+" in many modes includes newlines, so the default could include
explicit newlines as well that it matched in some modes until Emacs 28.
This bug report was last modified 2 years and 203 days ago.

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