From: Josh Huber <huber+rt@...>
Date: 2004-03-17T01:24:58+09:00
Subject: Re: ruby-mode.el - font lock not working?

It seems as though I was pretty confused, since in XEmacs C-h a
searches all symbols, while in GNU Emacs it only searches interactive
commands.

No wonder I couldn't find these functions/variables :)

btw, this is with Emacs 21.3.50.1.

"Josef 'Jupp' SCHUGT" <jupp@gmx.de> writes:

> $ emacs --version|head -1
> GNU Emacs 21.2.1
>
> Start, enter
>
>     M-x describe-mode font-lock-mode
>
> which among other information displays:
>
> You can enable Font Lock mode in any major mode automatically by
> turning on in the major mode's hook.  For example, put in your
> ~/.emacs:
>
>     (add-hook 'c-mode-hook 'turn-on-font-lock)
>
> Switch to *scratch*
>
>     M-x lisp-mode
>
> No highlighting here. Enter
>
>     (add-hook 'lisp-mode-hook 'turn-on-font-lock)
>
> enter
>
>     M-x eval-current-buffer
>
> again enter
>
>     M-x lisp-mode
>
> Voila`: Syntax highlighting.

Unfortunately, my problem is that in ruby-mode, even when syntax
highlighting is enabled, it doesn't work until I toggle font-lock
off, then back on again.

It seems as though if I have:

(global-font-lock-mode 1)
(add-hook 'ruby-mode-hook 'turn-on-font-lock)
(setq font-lock-maximum-decoration t)

*before* I load ruby-mode, then things work as expected, otherwise I
need to toggle font-lock off, then on to make it work.

> [... font-lock-maximum-decoration ...]
> It definitely works in GNU Emacs. Checked with tex-mode. nil
> arguments to textbf (i.e. bold face) display in ordinary face, if
> set to t they display in bold face.

Yes, I see that now.  After reordering as I mentioned above, it seems
to have done the trick.

> You know that the setting to take effect you need to do a
> font-lock-mode cycle (i.e. switch it of and on again).

perhaps this has something to do with it?

> Did I point out that my favorite editor is vim and that I *very*
> rarely use GNU Emacs?

I use vim quite a bit as well, but not for writing code.  I like
being able to write elisp to help coding tasks. (of course, I haven't
had to do this for Ruby, but when dealing with C it's handy to
automate various boring tasks)

-- 
Josh Huber