GNU bug report logs - #13816
24.3.50; turn-on-font-lock doesn't turn it on

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Katsumi Yamaoka <yamaoka <at> jpl.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#13816: closed (24.3.50; turn-on-font-lock doesn't turn it on)
Date: Tue, 26 Feb 2013 07:54:03 +0000

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Your message dated Tue, 26 Feb 2013 16:51:10 +0900
with message-id <b4mbob74ioh.fsf <at> jpl.org>
and subject line Re: bug#13816: 24.3.50; turn-on-font-lock doesn't turn it on
has caused the debbugs.gnu.org bug report #13816,
regarding 24.3.50; turn-on-font-lock doesn't turn it on
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Katsumi Yamaoka <yamaoka <at> jpl.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; turn-on-font-lock doesn't turn it on
Date: Tue, 26 Feb 2013 11:02:12 +0900

Recently turn-on-font-lock set to some hook turns font-lock
on but turns it off immediately regardless of the value of
global-font-lock-mode.  Here's a recipe:

emacs -Q
Eval: (add-hook 'emacs-lisp-mode-hook 'turn-on-font-lock)
and visit some .el file.

In Emacs 24.2, it works no matter what global-font-lock-mode is.
Thanks.

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From: Katsumi Yamaoka <yamaoka <at> jpl.org>
To: 13816-done <at> debbugs.gnu.org
Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#13816: 24.3.50; turn-on-font-lock doesn't turn it on
Date: Tue, 26 Feb 2013 16:51:10 +0900

I confirmed it has been fixed on:

In GNU Emacs 24.3.50.1 (i686-pc-cygwin, X toolkit, Xaw3d scroll bars)
 of 2013-02-26 on yamaoka-PC
Bzr revision: 111882 eggert <at> cs.ucla.edu-20130226030908-c65ivknn1bm5hjru
Windowing system distributor `The Cygwin/X Project', version 11.0.11302000

Sorry for the noise.

Katsumi Yamaoka wrote:
> Stefan Monnier wrote:
>>> Recently turn-on-font-lock set to some hook turns font-lock
>>> on but turns it off immediately regardless of the value of
>>> global-font-lock-mode.  Here's a recipe:

>>> emacs -Q
>>> Eval: (add-hook 'emacs-lisp-mode-hook 'turn-on-font-lock)
>>> and visit some .el file.

>> Works fine on the trunk right now.  Can you confirm it was fixed if you
>> try a recent enough build?

> I build Emacs from the trunk almost everyday.  Now I use:

> In GNU Emacs 24.3.50.1 (i686-pc-cygwin, X toolkit, Xaw3d scroll bars)
>  of 2013-02-26 on localhost
> Bzr revision: 111880 monnier <at> iro.umontreal.ca-20130225232750-8wmx78e4uz1u7tfk
> Windowing system distributor `The Cygwin/X Project', version 11.0.11302000
> Configured using:
>  `configure --verbose --with-x-toolkit=lucid --without-imagemagick
>  --without-dbus --without-gconf --without-gsettings'

> I've reverted the 111870 change because of bug#13818, though.

> According to my tracing of run-mode-hooks, it turns on font-lock
> but turns it off by the last line:

> (defun run-mode-hooks (&rest hooks)
> [...]
>     ;; ON
>     (apply 'run-hooks (cons 'change-major-mode-after-body-hook hooks))
>     ;; OFF
>     (run-hooks 'after-change-major-mode-hook)))

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