From: Alan Schmitt <alan.schmitt@polytechnique.org>
To: emacs-devel@gnu.org
Subject: set-text-properties and jit-lock-mode
Date: Sun, 21 Feb 2016 19:02:31 +0100 [thread overview]
Message-ID: <m24md20wnc.fsf@polytechnique.org> (raw)
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Hello,
I'm tracking down a bug in ledger-mode and I'm now at the point where I
think I need some help about some emacs core code.
The problem: if jit-lock-mode it t, then using set-text-properties to
change the face does not work.
To reproduce: start emacs with -Q. In the scratch buffer, type "foo".
Then evaluate:
(set-text-properties 192 195 (list 'face 'italic))
Nothing changes, and when I do a `describe-char' on one letter of "foo"
I don't see the face.
If I then evaluate
(setq jit-lock-mode nil)
(set-text-properties 192 195 (list 'face 'italic))
then I see the face change to italic, confirmed by `describe-char'.
As `set-text-properties' is a function in C, I don't know how to look at
its source (any pointers on how to do this would be great). Is it
supposed not to work for faces when jit-lock is on?
Thanks,
Alan
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next reply other threads:[~2016-02-21 18:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-21 18:02 Alan Schmitt [this message]
2016-02-21 19:04 ` set-text-properties and jit-lock-mode Alan Mackenzie
2016-02-22 7:29 ` Alan Schmitt
2016-02-24 3:40 ` Stefan Monnier
2016-02-21 20:30 ` Eli Zaretskii
2016-02-22 7:38 ` Alan Schmitt
2016-02-22 8:51 ` Anders Lindgren
2016-02-22 9:02 ` Alan Schmitt
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