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Re: (font-lock-mode 1) does not always force font-lock
From: |
Hrvoje Niksic |
Subject: |
Re: (font-lock-mode 1) does not always force font-lock |
Date: |
Fri, 24 Oct 2003 00:30:17 +0200 |
User-agent: |
Gnus/5.1002 (Gnus v5.10.2) XEmacs/21.4 (Rational FORTRAN, linux) |
Richard Stallman <address@hidden> writes:
> This returns nil because `(font-lock-mode 1)' does not force
> font-lock, contrary to the docstring which, in GNU Emacs 21.2.1,
> states:
>
> With arg, turn Font Lock mode off if and only if arg is a
> non-positive number; if arg is nil, toggle Font Lock mode;
> anything else turns Font Lock on.
>
> I assume the problem is that the buffer is that the buffer in
> question is temporary.
>
> that seems like a bug to me. perhaps it is a consequence of a
> feature meant for some other case.
It was probably meant to prevent unwanted fontification of temporary
buffers for users who turn on font-lock from a global hook or who use
global-font-lock-mode.
The idea is correct, but the place is wrong. The code that excludes
temporary buffers from font-lock should be in global-font-lock-mode or
perhaps in turn-on-font-lock, but not in font-lock-mode proper.
> what code tests this?
I don't have the sources handy. It seems that the code recognizes the
buffer as temporary by checking for names that begins with space. For
instance, this works (returns t):
(let ((newbuf (generate-new-buffer "*foo*")))
(with-current-buffer newbuf
(c-mode)
(font-lock-mode 1)
(prog1 font-lock-mode
(kill-buffer (current-buffer)))))
Change "*foo*" to " *foo*", and it no longer works, i.e. it returns
nil.
> can u suggest a patch?
I don't have a patch, sorry.
- Re: (font-lock-mode 1) does not always force font-lock, Richard Stallman, 2003/10/23
- Re: (font-lock-mode 1) does not always force font-lock,
Hrvoje Niksic <=
- Re: (font-lock-mode 1) does not always force font-lock, Alexander Pohoyda, 2003/10/24
- Re: (font-lock-mode 1) does not always force font-lock, Hrvoje Niksic, 2003/10/24
- Re: (font-lock-mode 1) does not always force font-lock, Alexander Pohoyda, 2003/10/24
- Re: (font-lock-mode 1) does not always force font-lock, Hrvoje Niksic, 2003/10/24
- Re: (font-lock-mode 1) does not always force font-lock, Alexander Pohoyda, 2003/10/25
- Re: (font-lock-mode 1) does not always force font-lock, Hrvoje Niksic, 2003/10/25
- Re: (font-lock-mode 1) does not always force font-lock, Alexander Pohoyda, 2003/10/26
- Re: (font-lock-mode 1) does not always force font-lock, Hrvoje Niksic, 2003/10/26
- Re: (font-lock-mode 1) does not always force font-lock, Stefan Monnier, 2003/10/26
- Re: (font-lock-mode 1) does not always force font-lock, Richard Stallman, 2003/10/27