Re: display of TAB character

[Georg.Wittig@zv.Fraunhofer.de (Georg Wittig)]

Kai Grossjohann <kai@emptydomain.de> writes:

> georg1000@gmx.de writes:
> 
> > I was unable to find out how to do this. The only way to change
> > the display of TAB is by changing `tab-width', which can only be set to
> > a constant value.
> 
> That's also what I think.
> 
> > I do not want to change the behaviour of the tab key (with
> > `tab-stop-list' for example), but the display of the TAB key.
> 
> To change the display of the tab key, you have to paint your keyboard ;-)


Here's a small code sequence you can put into your ~/.emacs. It
assigns a color to the TAB-Key and to a trailing space character at
the end of the line. I think I found it in this news group some years
ago. Works for me quite well and fast.



(custom-set-faces
 '(my-tab-face            ((((class color)) (:background "lemon chiffon"))) t)
 '(my-trailing-space-face ((((class color)) (:background "Gold"))) t))

(add-hook 'font-lock-mode-hook
  (function
    (lambda ()
      (setq font-lock-keywords
            (append font-lock-keywords
                    '(("\t+" (0 'my-tab-face t))
                      ("[ \t]+$" (0 'my-trailing-space-face t))))))))

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