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Subject: Re: show tabs and white space
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rgb wrote:
> If you want to be able to spot the difference between a tab
> and a space character you could highlight tabs like this.
> 
> (defface tab-face '((t (:background "red")))
>   "highlight tabs")
> (font-lock-add-keywords 'tacl-mode '(("\t" 0 tab-face   prepend)))
> ;;                       ^^^ substitute your mode name here
> 
> ;; spaces can be highlighted too if you really want.
> (defface space-face '((t (:background "grey" )))
>   "highlight whitespace")
> (font-lock-add-keywords 'tacl-mode '((" "  0 space-face prepend)))
> ;;                       ^^^ substitute your mode name here
> 
> If you only want to see trailing whitespace I use this
> (defun stw () "Toggles `show-trailing-whitespace' on/off"
>   (interactive)
>   (setq show-trailing-whitespace (not show-trailing-whitespace)))

Actually I'm looking for a similar minibuffer cmd like the xemacs:
   M-x old-whitespace-mode RET
which highlights both white space and tabs.

Anyway, thanks a lot!

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