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Re: problem understanding font-lock-defaults structure
From: |
Nikolaj Schumacher |
Subject: |
Re: problem understanding font-lock-defaults structure |
Date: |
Thu, 09 Oct 2008 19:16:37 +0200 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.3 (darwin) |
Xah <xahlee@gmail.com> wrote:
> (setq myKeywordsLevel1
> (list
> ("Sin\\|Cos" . font-lock-function-name-face)
> ("π\\|∞" . font-lock-constant-face)
> ("x\\|y" . font-lock-variable-name-face)))
>
> Are you sure? It gives (invalid-function "Sin\\|Cos").
You're right.
(setq myKeywordsLevel1
(list (cons "Sin\\|Cos" font-lock-function-name-face)
(cons "π\\|∞" font-lock-constant-face)
(cons "x\\|y" font-lock-variable-name-face)))
I was looking only at the "(quote" line.
>> There's no need to use `, here. `font-lock-keywords' accepts symbols.
>> (setq font-lock-keywords '((myKeywordsLevel1 nil nil)))
>
> after eval that form, than i looked at the value of font-lock-keywords
> using describe-variable, it says:
My bad, too. I meant `font-lock-defaults' -- the variable you were
already using, and we were talking about. -keywords just crept in from
finger memory.
Here's a complete, working example:
(setq myKeywordsLevel1
'(("Sin\\|Cos" . font-lock-function-name-face)
("π\\|∞" . font-lock-constant-face)
("x\\|y" . font-lock-variable-name-face)))
(define-derived-mode foo-mode fundamental-mode
(setq font-lock-defaults '(myKeywordsLevel1)))
> Its value is
> (t
> (myKeywordsLevel1)
> (myKeywordsLevel1
> (0 font-lock-keyword-face)))
>
> Local in buffer untitled<3>;
> »
>
> Where did all the extra came from?
The list has been "compiled". The t marks it as such, so it isn't
processed twice. Due to this kind of voodoo, I avoid touching
`font-lock-keywords'. I use `font-lock-add-keywords'.
regards,
Nikolaj Schumacher
- Re: problem understanding font-lock-defaults structure, (continued)
- Re: problem understanding font-lock-defaults structure, Nikolaj Schumacher, 2008/10/08
- Message not available
- Re: problem understanding font-lock-defaults structure, Nikolaj Schumacher, 2008/10/09
- Message not available
- Re: problem understanding font-lock-defaults structure, Xah, 2008/10/09
- Re: problem understanding font-lock-defaults structure, harven, 2008/10/09
- Re: problem understanding font-lock-defaults structure, Nikolaj Schumacher, 2008/10/09
- Message not available
- Re: problem understanding font-lock-defaults structure, Xah, 2008/10/09
- Re: problem understanding font-lock-defaults structure,
Nikolaj Schumacher <=
- Message not available
- Re: problem understanding font-lock-defaults structure, Xah, 2008/10/09
- Re: problem understanding font-lock-defaults structure, Nikolaj Schumacher, 2008/10/09
- Message not available
- Re: problem understanding font-lock-defaults structure, Xah, 2008/10/09
- Re: problem understanding font-lock-defaults structure, Tim X, 2008/10/09