From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: 46274@debbugs.gnu.org
Subject: bug#46274: 28.0.50; Inconsistent doc for syntax-propertize-function
Date: Thu, 04 Feb 2021 15:34:33 -0500 [thread overview]
Message-ID: <jwvy2g38tej.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <871rdwgrjw.fsf@gnus.org> (Lars Ingebrigtsen's message of "Thu, 04 Feb 2021 09:34:11 +0100")
>> C-h v syntax-propertize-function contains this text:
>>
>> The specified function may call `syntax-ppss' on any position
>> before END, but if it calls `syntax-ppss' on some
>> position and later modifies the buffer on some earlier position,
>> then it is its responsibility to call `syntax-ppss-flush-cache' to flush
>> the now obsolete ppss info from the cache.
>>
>> But (info "(elisp) Syntax Properties") has a different view:
>>
>> It is allowed to call ‘syntax-ppss’ on any position before END.
>> However, it should not call ‘syntax-ppss-flush-cache’; so, it is not
>> allowed to call ‘syntax-ppss’ on some position and later modify the
>> buffer at an earlier position.
>>
>> Which is the right one?
>
> Good question. Stefan M added to the CCs.
I think the docstring is the one that's more right (especially since
there is a fair number of syntax-propertize-functions which do call
‘syntax-ppss-flush-cache’).
Stefan
prev parent reply other threads:[~2021-02-04 20:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-03 20:04 bug#46274: 28.0.50; Inconsistent doc for syntax-propertize-function Filipp Gunbin
2021-02-04 8:34 ` Lars Ingebrigtsen
2021-02-04 16:23 ` Stefan Monnier
2021-02-05 8:38 ` Lars Ingebrigtsen
2021-02-05 14:59 ` Filipp Gunbin
2021-02-04 20:34 ` Stefan Monnier [this message]
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