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From: Lars Ingebrigtsen <larsi@gnus.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: p.stephani2@gmail.com, pipcet@gmail.com, 33414@debbugs.gnu.org
Subject: bug#33414: 27.0.50; inhibit-changing-match-data can be t in syntax-propertize functions, breaking backtrace and looking-at
Date: Sun, 05 Sep 2021 11:45:50 +0200	[thread overview]
Message-ID: <87v93fmk35.fsf@gnus.org> (raw)
In-Reply-To: <83v93ftl6e.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 05 Sep 2021 12:40:25 +0300")

Eli Zaretskii <eliz@gnu.org> writes:

> FWIW, I don't share the above view.  We bind variables to affect
> behavior of functions all over the place, and that is perfectly okay,
> IMO.

This one leads to really hard to debug problems, though.

>> -@defun looking-at regexp
>> +@defun looking-at regexp &optional inhibit-save
>                                       ^^^^^^^^^^^^
> A typo?

Yup.  I changed the name of these parameters five times while writing
the patch.

>> +(make-obsolete-variable 'inhibit-changing-match-data nil "28.1")
>
> Really? why obsolete it?

Because it's not used (and shouldn't be used).  `save-match-data' is the
proper way to achieve this in normal code.

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





  reply	other threads:[~2021-09-05  9:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-17 13:30 bug#33414: 27.0.50; inhibit-changing-match-data can be t in syntax-propertize functions, breaking backtrace and looking-at Pip Cet
2018-11-17 13:46 ` Eli Zaretskii
2018-11-17 14:14   ` Pip Cet
2018-11-17 14:36     ` Eli Zaretskii
2021-08-12 13:11       ` Lars Ingebrigtsen
2021-09-04 18:39         ` Philipp
2021-09-04 19:33           ` bug#33414: [External] : " Drew Adams
2021-09-05  9:29           ` Lars Ingebrigtsen
2021-09-05  9:40             ` Eli Zaretskii
2021-09-05  9:45               ` Lars Ingebrigtsen [this message]
2021-09-05  9:55                 ` Eli Zaretskii
2021-10-07 18:49                   ` Lars Ingebrigtsen
2021-10-07 19:07                     ` bug#33414: [External] : " Drew Adams
2021-10-07 19:11                       ` Lars Ingebrigtsen

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