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bug#3628: Python-Mode Ignores Global Font Lock
From: |
Lawrence Mitchell |
Subject: |
bug#3628: Python-Mode Ignores Global Font Lock |
Date: |
Mon, 22 Jun 2009 10:10:30 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.90 (gnu/linux) |
Sean B. Palmer wrote:
> In my .emacs file I turn off global font lock:
> (global-font-lock-mode 0)
[...]
> In emacs 23.0.95.1 (build details below), this no longer works for
> Python files. That is to say, various *.py files that I've tested have
> syntax highlighting ON when I edit them in emacs with a normal
> command:
> $ emacs example.py
> $ emacs api.py
> Perl and C files have syntax highlighting OFF, on the other hand. When
> editing one of the Python files, syntax highlighting can be turned OFF
> by using the following procedure:
> M-x eval-expression <RET>
> (global-font-lock-mode 0) <RET>
> In other words, by evaluating the expression from my .emacs file
> manually. On repeating the expression, syntax highlighting remains
> OFF, so it is apparently not acting as a toggle.
(global-font-lock-mode 0) only turns /off/ font lock
| With prefix arg, turn Global-Font-Lock mode on if and only if
| arg is positive.
I.e., it's not acting as a toggle, but this is intended.
[...]
The overriding of user preference regarding font lock appears to
be a deliberate change. A commit on Feb 21 2008 merges changes
from Dave Love's python.el.
| Author: Chong Yidong <cyd@stupidchicken.com>
| Date: Thu Feb 21 17:03:47 2008 +0000
| Merge from Dave Love's 2008-01-20 version.
These include:
| (python-mode): Add python-pea-hook to pre-abbrev-expand-hook. Use
| symbol-completion-try-complete for hippie expansion. Turn on font
| lock unconditionally.
Font-lock is used unconditionally in python buffers, I think, so
that text properties marking strings and comments can be
maintained with greater ease than otherwise. It appears to be a
design decision.
Cheers,
Lawrence
--
Lawrence Mitchell <wence@gmx.li>