From: rusi <rustompmody@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: How to make font lock work with comments?
Date: Thu, 30 Dec 2010 09:28:44 -0800 (PST) [thread overview]
Message-ID: <82cc058d-0daf-4750-8725-0ffaa20783e3@29g2000prb.googlegroups.com> (raw)
In-Reply-To: 87bp43nyha.fsf@kuiper.lan.informatimago.com
On Dec 30, 7:09 pm, "Pascal J. Bourguignon" <p...@informatimago.com>
wrote:
> rusi <rustompm...@gmail.com> writes:
> > Im hacking on an apl mode
> > In other words emacs sees this as a comment-type char (similar to what
> > it says for semicolon in elisp buffers
>
> > And yet in an elisp buffer the ; to EOL is red
> > but here it is not.
>
> Font locking is a tricky matter.
>
> (font-lock-add-keywords nil
> '(("⍝.*" 0 font-lock-comment-face prepend)
> ("[^\\]\"\\([^\"\\]*\\|\\.\\)\"" 0 font-lock-string-face prepend)))
Thanks Pascal. I gave this (\x235 is that char) and it works
[Else I get some unicode-related messages when I try ot save the el
file]
(font-lock-add-keywords 'inferior-apl-mode
'(("\x235d.*" 0 font-lock-comment-face prepend)))
I guess the second line is for strings?
Where do I get all the (typical) faces that should be set up for a
progmode?
Ive been trying to copy stuff from scheme.el -- is there a better
model?
>
> The main problem is that it uses regular expressions to find the
> "keywords", but you want syntax coloring. However, there's a way to use
> it for syntax coloring, since instead of a regular expression, you can
> use a function here, which will have to set the "matched regions".
>
> For example, for an assembler, I wrote a function to parse
> (syntactically) an assembler line, and matching the fields. It is
> configured with font-lock-add-keywords as:
>
> (font-lock-add-keywords
> nil
> (list
> (list
> (function search-asm7090-fields)
> '(1 font-lock-function-name-face) ; labels
> '(2 font-lock-keyword-face) ; operation codes
> '(3 font-lock-reference-face) ; arguments
> '(4 font-lock-comment-face) ; comments
> '(5 font-lock-preprocessor-face) ; ibsys
> '(6 font-lock-type-face) ; cols 72-80
> )))
I dont think I really understand this... In any case I guess I dont
need much parsing (for apl)
>
> Of course, you can also implement buffer-wide syntax analysis, and have
> these functions just report the findings.
>
> --
> __Pascal Bourguignon__ http://www.informatimago.com/
> A bad day in () is better than a good day in {}.
next prev parent reply other threads:[~2010-12-30 17:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-29 9:50 How to make font lock work with comments? rusi
2010-12-30 8:43 ` Elena
2010-12-30 21:27 ` Tim X
2010-12-30 14:09 ` Pascal J. Bourguignon
2010-12-30 17:28 ` rusi [this message]
2010-12-30 18:35 ` Pascal J. Bourguignon
2011-01-03 4:28 ` Stefan Monnier
2011-01-03 4:29 ` Stefan Monnier
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