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| From: | Stefan Monnier |
| Subject: | Re: (add-hook 'font-lock-mode-hook ...) keeps adding to font-lock-keywords |
| Date: | Fri, 02 Sep 2005 10:34:30 -0400 |
| User-agent: | Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) |
> (defun show-tabs () "Show tabs with a slightly changed background"
> (setq font-lock-keywords
> (append font-lock-keywords '(("[\t]+" (0 'tab-face t))))))
> (add-hook 'font-lock-mode-hook 'show-tabs)
font-lock-mode-hook is called both when turning the mode ON and when turning
the mode OFF.
font-lock-keywords should not be modified as you do. Instead you should use
font-lock-add-keywords, which knows about font-lock-compile-keywords.
Stefan
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