GNU bug report logs - #24510
25.1; Info: searching for ` does not find what looks like `

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: Juri Linkov <juri <at> linkov.net>, 24510 <at> debbugs.gnu.org
Subject: bug#24510: 25.1; Info: searching for ` does not find what looks like `
Date: Thu, 28 Apr 2022 12:48:25 +0200

Drew Adams <drew.adams <at> oracle.com> writes:

> emacs -Q
>
> C-h r g Dired
> C-s `list
>
> finds nothing, missing the occurrence of ‘list-directory’ that is in the
> same node.
>
> What looks exactly (AFAICT) like the backquote you typed at the prompt
> is NOT the same as the character that precedes "list-directory" in the
> buffer.  And it is not matched to that character by Isearch.  That
> character is LEFT SINGLE QUOTATION MARK.

It would be possible to fold certain character groups into equivalence
classes for isearch in these modes (I'm thinking info-mode and
help-mode) so that ` and ‘ are treated equivalently -- that might help
users and shouldn't lead to regressions?

Perhaps Juri has some comments; added to the CCs.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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