From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Juri Linkov <juri@linkov.net>
Cc: Lars Ingebrigtsen <larsi@gnus.org>, 49534@debbugs.gnu.org
Subject: bug#49534: 26.3; Isearch should support using filter predicates with empty search hits
Date: Tue, 13 Jul 2021 18:48:39 -0400 [thread overview]
Message-ID: <jwv4kcxygui.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <874kcy6k4l.fsf@mail.linkov.net> (Juri Linkov's message of "Tue, 13 Jul 2021 23:20:42 +0300")
> This means that if isearch-filter-predicate does own matching,
> it will break later (= (match-beginning 0) (match-end 0)).
> What would be better: to remember its result in a let-bound variable,
> or to use save-match-data? Probably, save-match-data:
Remembering the result in a var might be more efficient.
Also if `isearch-filter-predicate` clobbers the match data we have more
problems (unless it tells us to skip this match).
But whichever choice we make I think the docstring of
`isearch-filter-predicate` should clarify what happens with the match
data (i.e. whether it needs to be careful not to clobber it or not).
Stefan
next prev parent reply other threads:[~2021-07-13 22:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-12 14:34 bug#49534: 26.3; Isearch should support using filter predicates with empty search hits Drew Adams
2021-07-13 16:27 ` Lars Ingebrigtsen
2021-07-13 19:25 ` Juri Linkov
2021-07-13 20:20 ` Juri Linkov
2021-07-13 20:41 ` Lars Ingebrigtsen
2021-07-13 22:30 ` Juri Linkov
2021-07-13 21:42 ` bug#49534: [External] : " Drew Adams
2021-07-13 22:30 ` Juri Linkov
2021-07-13 23:00 ` Drew Adams
2021-07-13 22:48 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2021-07-13 23:21 ` Juri Linkov
2021-07-13 21:44 ` bug#49534: [External] : " Drew Adams
2021-07-13 22:31 ` Juri Linkov
2021-07-13 23:04 ` Drew Adams
2022-02-16 4:20 ` Drew Adams
2022-02-16 18:20 ` Juri Linkov
2022-02-16 18:54 ` bug#49534: [External] : " Drew Adams
2022-02-16 19:09 ` Juri Linkov
2022-02-16 19:17 ` Drew Adams
2022-02-16 19:25 ` Juri Linkov
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