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From: Stefan Monnier via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: When is a syntax-propertize-function called when parse-sexp-lookup-properties is t for a current buffer?
Date: Tue, 05 Oct 2021 08:54:26 -0400	[thread overview]
Message-ID: <jwvfstf8wld.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: CALTqLiaFx90oQu-ZvPkFSCPsTUNO++7u2ODZs_TYXqnno8WmaA@mail.gmail.com

> What I'd like to understand is what calls the generated function, providing
> it the 2 arguments (start & end) and when should it be called.

It's called from various places in various cases.
Most importantly/directly it's called by `syntax-ppss` as well as
"internally" from the C-level syntax scanning code (e.g. the code
implementing `parse-partial-sexp`, `forward-sexp`, ...).

In shouldn't need/want to know the details, normally.

> Are these calls protected against error so I can't see them if they occur?

No, although some of them can occur in contexts where the error might be
silenced or at least not displayed in a prominent way.

Why do you ask?
Are you having an actual problem, or are you asking out of curiosity?


        Stefan




  parent reply	other threads:[~2021-10-05 12:54 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-05  3:54 When is a syntax-propertize-function called when parse-sexp-lookup-properties is t for a current buffer? Pierre Rouleau
2021-10-05  4:15 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-10-05 12:00   ` Pierre Rouleau
2021-10-05 12:54 ` Stefan Monnier via Users list for the GNU Emacs text editor [this message]
2021-10-05 13:48   ` Pierre Rouleau
2021-10-05 14:57     ` Stefan Monnier
2021-10-05 15:36       ` Pierre Rouleau
2021-10-05 17:29         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-10-05 18:45           ` Pierre Rouleau
2021-10-05 19:08             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-10-05 19:42               ` Pierre Rouleau
2021-10-05 19:41         ` Stefan Monnier
     [not found]           ` <CALTqLiab4AZx=fn1wX1ovckxFtie9C20O=qZFYTLyQNKWfWZGg@mail.gmail.com>
2021-10-05 20:05             ` Fwd: " Pierre Rouleau
2021-10-05 20:17           ` Pierre Rouleau
2021-10-06  1:55             ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-10-06  2:46               ` Pierre Rouleau

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