From: Rob Biedenharn <Rob@...>
Date: 2007-11-05T00:15:40+09:00
Subject: Re: Emacs highlighting, keywords


On Nov 4, 2007, at 7:45 AM, Rolf Andreassen wrote:

> Hi,
>
> I'm a new user trying to set up a Ruby dev environment. I've gotten to
> the point where emacs is willing to highlight some syntax, but not  
> all.
> Specifically, I get strings in grey and comments in red, but keywords
> ('class', 'def', 'end') stay stubbornly black, as do class and  
> variable
> names. Keywords do get highlighted in .C files, so it does not seem to
> be a global emacs issue.
>
> I wonder if the issue can be that font-lock-defaults is not getting
> defined properly, for its value is nil in my test.rb file. Can anyone
> help me understand how to get it properly set?
>
> Background information: I am using GNU Emacs 21.3.1
> (i386-mingw-nt5.1.2600), on Windows XP, and Ruby version 1.8.6. I am
> loading ruby mode with the following lines in my .emacs:
>
> (setq load-path (append load-path
> '("D:/ruby/doc/ruby/ruby-1.8.6/misc")))
> (autoload 'ruby-mode "ruby-mode" "Major mode for editing ruby  
> scripts."
> t)
> (setq auto-mode-alist (cons '("\\.rb$" . ruby-mode) auto-mode-alist))
> (setq interpreter-mode-alist (append '(("ruby" . ruby-mode))
> interpreter-mode-alist))
>
>
> Thanks,
>
> Rolf Andreassen.

I set these font faces before I autoload the ruby-mode.  It's old  
'cause I've been using Emacs for a looong time, but my keywords in  
ruby-mode are now cyan (and have been for ages so I have no clue what  
they were normally).  I use a black background so you may have to  
change some of the colors if you prefer a light background.

(require 'font-core)
(require 'font-lock)

(setq font-lock-maximum-decoration t)
(global-font-lock-mode t nil)		; this is what I want! (8/26/01)

(setq font-lock-face-attributes
       (list
        '(font-lock-comment-face		"firebrick"	nil nil nil nil)
        '(font-lock-function-name-face	"orange"	nil nil nil nil)
        '(font-lock-keyword-face		"cyan"		nil nil nil nil)
;;        '(font-lock-reference-face	"red"		nil nil nil nil)
        '(font-lock-string-face		"blue"  	nil nil nil nil)
        '(font-lock-type-face		"magenta"	nil nil nil nil)
        '(font-lock-variable-name-face	"green"		nil nil nil nil)
        ))


I also have this bit (probably from a couple years ago) that, I think,  
shows a better way to set fonts that are at least minimally aware of  
the lightness or darkness of the background. (e.g., the '(background  
light) list)

(custom-set-faces
   ;; custom-set-faces was added by Custom.
   ;; If you edit it by hand, you could mess it up, so be careful.
   ;; Your init file should contain only one such instance.
   ;; If there is more than one, they won't work right.
  '(cperl-array ((((class color) (background light)) (:background  
"lightyellow2" :foreground "Blue"))))
  '(cperl-hash ((((class color) (background light)) (:background  
"lightyellow2" :foreground "Red" :slant italic))))
  )


-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com