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From: Miles Bader <miles@gnu.org>
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Subject: Re: Display "dash" as "minus" in programming language mode?
Date: Thu, 09 Jul 2009 18:00:33 +0900
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Torsten Bronger <bronger@physik.rwth-aachen.de> writes:
> (add-hook 'python-mode-hook
> 	  (lambda ()
> 	    (font-lock-add-keywords nil
> 				    '(("\\B-\\B"
> 				       (0 (progn (compose-region (match-beginning 0) (match-end 0)  "−"
> 								 'decompose-region)
> 						 nil)))
> 				      ))))
> (add-hook 'python-mode-hook
> 	  (lambda ()
> 	    (aset (or buffer-display-table
> 		      (setq buffer-display-table (make-display-table)))
> 		  ?* [?✻])))

Hmm, why add font-lock stuff, when using display-table for dash too
would be easier and far more efficient (and you're already setting up
the display table anyway, so even simpler...)?

[I mean, like:

(add-hook 'python-mode-hook
	  (lambda ()
            (unless buffer-display-table
              (setq buffer-display-table (make-display-table)))
            (aset buffer-display-table ?* [?✻])
            (aset buffer-display-table ?- [?−])))

]

-Miles

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