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From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 58558@debbugs.gnu.org, acm@muc.de, yantar92@posteo.net, larsi@gnus.org
Subject: bug#58558: 29.0.50; re-search-forward is slow in some buffers
Date: Wed, 12 Apr 2023 10:38:50 -0400	[thread overview]
Message-ID: <jwvjzyhnp6j.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83fs956ulv.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 12 Apr 2023 17:30:36 +0300")

>> > 1. emacs -Q
>> > 2. M-: (require 'cc-langs) <RET>
>> > 3. C-x b asd <RET>
>> > 4. M-: parse-sexp-lookup-properties <RET> => t
>> >
>> > On Emacs 28, (4) yields nil.
>> 
>> I suspect that the patch below might fix the immediate problem.
>> Of course, setting `parse-sexp-lookup-properties` should not have such
>> a major performance impact, so maybe we should keep digging into
>> the problem.
>
> Also, that code was there in Emacs 28 as well, so how come it suddenly
> has this effect now?

The effect of the code depends on whether the buffer that's current when
`cc-defs.el` is loaded has set `parse-sexp-lookup-properties`
buffer-locally or not.

I don't have Emacs-28 at hand, but the value of
`parse-sexp-lookup-properties` in *scratch* is (buffer-local) t in
Emacs-29 and (global) nil in Emacs-27.


        Stefan






  reply	other threads:[~2023-04-12 14:38 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-16  1:26 bug#58558: 29.0.50; re-search-forward is slow in some buffers Ihor Radchenko
2022-10-16  9:19 ` Lars Ingebrigtsen
2022-10-16  9:34   ` Ihor Radchenko
2022-10-16  9:37     ` Lars Ingebrigtsen
2022-10-16 10:02       ` Ihor Radchenko
2022-10-16 10:04         ` Lars Ingebrigtsen
2022-10-16 10:53           ` Ihor Radchenko
2022-10-16 11:01             ` Lars Ingebrigtsen
2022-10-16 11:21               ` Eli Zaretskii
2022-10-16 14:23                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-17  0:56                   ` Ihor Radchenko
2022-10-18 11:50                     ` Lars Ingebrigtsen
2022-10-18 14:58                       ` Eli Zaretskii
2022-10-18 18:19                         ` Lars Ingebrigtsen
2022-10-18 18:38                           ` Eli Zaretskii
2022-12-13 10:28                           ` Ihor Radchenko
2022-12-13 13:11                             ` Eli Zaretskii
2022-12-13 13:32                               ` Ihor Radchenko
2022-12-13 14:28                                 ` Eli Zaretskii
2022-12-13 15:56                                   ` Ihor Radchenko
2022-12-13 16:08                                     ` Eli Zaretskii
2022-12-13 17:43                                       ` Ihor Radchenko
2022-12-13 17:52                                         ` Eli Zaretskii
2022-12-13 18:03                                           ` Ihor Radchenko
2022-12-13 20:02                                             ` Eli Zaretskii
2022-12-14 11:40                                               ` Ihor Radchenko
2022-12-14 13:06                                                 ` Eli Zaretskii
2022-12-14 13:23                                                   ` Ihor Radchenko
2022-12-14 13:32                                                     ` Eli Zaretskii
2022-12-14 13:39                                                       ` Ihor Radchenko
2022-12-14 14:12                                                         ` Eli Zaretskii
2022-12-13 18:15                                         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-13 18:40                                           ` Ihor Radchenko
2022-12-13 19:55                                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-13 20:21                                               ` Eli Zaretskii
2022-12-14 11:42                                                 ` Ihor Radchenko
2022-12-13 17:38                                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-12-14 12:00                                       ` Ihor Radchenko
2022-12-14 12:23                                       ` Ihor Radchenko
2022-12-14 13:10                                         ` Eli Zaretskii
2022-12-14 13:26                                           ` Ihor Radchenko
2022-12-14 13:57                                             ` Eli Zaretskii
2022-12-14 14:01                                               ` Ihor Radchenko
2023-04-06 11:49                                                 ` Ihor Radchenko
2023-04-06 12:05                                                   ` Eli Zaretskii
2023-04-09 19:54                                                     ` Ihor Radchenko
2023-04-10  4:14                                                       ` Eli Zaretskii
2023-04-10 12:24                                                         ` Ihor Radchenko
2023-04-10 13:40                                                           ` Eli Zaretskii
2023-04-10 14:55                                                             ` Ihor Radchenko
2023-04-10 16:04                                                               ` Eli Zaretskii
2023-04-10 14:27                                                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-04-11 11:29                                                             ` Ihor Radchenko
2023-04-11 11:51                                                               ` Eli Zaretskii
2023-04-12 13:39                                                                 ` Ihor Radchenko
2023-04-12 14:06                                                                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-04-12 14:30                                                                     ` Eli Zaretskii
2023-04-12 14:38                                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2023-04-12 15:22                                                                         ` Eli Zaretskii
2023-04-12 15:59                                                                           ` Alan Mackenzie
2023-04-12 14:38                                                                       ` Stephen Berman
2023-04-12 14:42                                                                       ` Ihor Radchenko
2023-04-12 14:39                                                                     ` Ihor Radchenko
2023-04-12 15:20                                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-04-12 23:23                                                                         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-04-13  4:33                                                                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-04-13 20:05                                                                             ` Ihor Radchenko
2023-04-13  4:52                                                                           ` Eli Zaretskii
2023-04-13  5:15                                                                             ` Eli Zaretskii
2023-04-12 18:31                                                                     ` Alan Mackenzie
2023-04-12 23:25                                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-04-13  4:43                                                                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-04-13 12:09                                                                     ` Ihor Radchenko
2022-12-13 13:27                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-16 10:36         ` Eli Zaretskii
2023-02-19 12:17     ` Dmitry Gutov
2023-02-20 10:24       ` Ihor Radchenko
2023-02-20 14:54         ` Dmitry Gutov
2023-04-10  8:48 ` Mattias Engdegård
2023-04-10  9:57   ` Ihor Radchenko
2023-04-10 10:05     ` Mattias Engdegård

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