From: Tim X <timx@nospam.dev.null>
To: help-gnu-emacs@gnu.org
Subject: Re: problem understanding font-lock-defaults structure
Date: Fri, 10 Oct 2008 11:45:11 +1100 [thread overview]
Message-ID: <87ljwxmg6g.fsf@lion.rapttech.com.au> (raw)
In-Reply-To: 5f116baa-33e0-48ed-a27e-8446a7791c1d@a18g2000pra.googlegroups.com
Xah <xahlee@gmail.com> writes:
> On Oct 9, 10:16 am, Nikolaj Schumacher <m...@nschum.de> wrote:
>
>> 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'.
>
> Thanks a lot. That's helpful and much info in this thread.
>
> possibly begging, is it possible to get this to work with using font-
> lock-keywords?
>
> Here's what i have now based on all the info in this thread. I
> couldn't see where it went wrong.
>
> ; Sin[x]^2 + Cos[y]^2 = 1
> ; π^2/6 == Sum[1/x^2,{x,1,∞}]
>
> (setq myKeywordsLevel1
> (quote
> (
> ("Sin\\|Cos" . font-lock-function-name-face)
> ("π\\|∞" . font-lock-constant-face)
> ("x\\|y" . font-lock-variable-name-face)
> )
> )
> )
>
> (setq font-lock-keywords
> (
> myKeywordsLevel1
> nil
> nil
> )
> )
>
> (font-lock-fontify-buffer)
>
> In the “setq font-lock-keywords”, block, i tried various quoting and
> nesting but no go.
>
> Xah
> ∑ http://xahlee.org/
Have a look at sql.el in the lisp/progmodes directory. It has very clear
examples of how you can do what you want. As the mode supports different
font-locking depending on the type of database your connecting to, it
has a mechanism for setting what keywords are font locked dynamically,
which seems to be close to what you are wanting to do (i.e. assign the
words to be font-locked to a variable and then use that in setting up
font locking). Also, Alex's code
is quite clear and well structured, making it quite easy to follow what
he is doing.
Tim
☄
--
tcross (at) rapttech dot com dot au
prev parent reply other threads:[~2008-10-10 0:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-08 18:46 problem understanding font-lock-defaults structure Xah
2008-10-08 21:22 ` Nikolaj Schumacher
[not found] ` <mailman.619.1223500981.25473.help-gnu-emacs@gnu.org>
2008-10-09 0:02 ` Xah
2008-10-09 0:54 ` Lennart Borgman (gmail)
2008-10-09 2:25 ` Kevin Rodgers
[not found] ` <mailman.643.1223519147.25473.help-gnu-emacs@gnu.org>
2008-10-09 21:18 ` Xah
2008-10-09 11:13 ` Nikolaj Schumacher
[not found] ` <mailman.637.1223513718.25473.help-gnu-emacs@gnu.org>
2008-10-09 15:04 ` Xah
2008-10-09 15:26 ` harven
2008-10-09 17:17 ` Nikolaj Schumacher
[not found] ` <mailman.677.1223550826.25473.help-gnu-emacs@gnu.org>
2008-10-09 15:29 ` Xah
2008-10-09 17:16 ` Nikolaj Schumacher
[not found] ` <mailman.719.1223572620.25473.help-gnu-emacs@gnu.org>
2008-10-09 21:40 ` Xah
2008-10-09 23:27 ` Nikolaj Schumacher
[not found] ` <mailman.739.1223594868.25473.help-gnu-emacs@gnu.org>
2008-10-10 0:20 ` Xah
2008-10-10 0:45 ` Tim X [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87ljwxmg6g.fsf@lion.rapttech.com.au \
--to=timx@nospam.dev.null \
--cc=help-gnu-emacs@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).