From: Dmitry Gutov <dgutov@yandex.ru>
To: 13817@debbugs.gnu.org
Subject: bug#13817: 24.3.50; Disabling whitespace-mode that was enabled in sgml-mode-hook breaks font-lock
Date: Tue, 26 Feb 2013 10:29:13 +0400 [thread overview]
Message-ID: <87ppznbnba.fsf@yandex.ru> (raw)
Revno 111881 fixed the obvious problem with whitespace-mode, here's a
less obvious one.
This seems to be localized to sgml-mode and its derivatives so far:
js-mode, ruby-mode, etc are not affected.
1. (add-hook 'sgml-mode-hook 'whitespace-mode)
2. Open a file in sgml-mode or html-mode, or create a buffer and turn
either mode manually. whitespace-mode will be enabled.
3. M-x whitespace-mode => it's disabled, font-lock is gone, the value of
font-lock-keywords is (t nil).
On the surface, the reason for this is that when whitespace-mode is being
turned on in the hook, font-lock-keywords is still nil, and so nil is
saved in whitespace-font-lock-keywords.
In GNU Emacs 24.3.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.6.0)
of 2013-02-26 on vbx
Bzr revision: 111882 eggert@cs.ucla.edu-20130226030908-c65ivknn1bm5hjru
Windowing system distributor `The X.Org Foundation', version 11.0.11300000
System Description: Ubuntu 12.10
next reply other threads:[~2013-02-26 6:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-26 6:29 Dmitry Gutov [this message]
2013-03-17 22:30 ` bug#13817: 24.3.50; Disabling whitespace-mode that was enabled in sgml-mode-hook breaks font-lock Stefan Monnier
2013-03-19 5:09 ` Dmitry Gutov
2013-03-19 13:02 ` Stefan Monnier
2013-03-19 15:14 ` Dmitry Gutov
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