Re: Restricting 'add-hook to a specific file extension

[Barry Margolin <barmar@alum.mit.edu>]

In article <mailman.5.1140910129.18076.help-gnu-emacs@gnu.org>,
 Tim Johnson <tim@johnsons-web.com> wrote:

> Is there a way to restrict 'add-hook to a specific file extension?
>     
> Below is code from my .emacs:
> 
> (require 'newlisp-mode++) ;; uses 'add-hook to extend 'scheme-mode
> (add-to-list 'auto-mode-alist '("\\.lsp\\'" . scheme-mode))
> (autoload 'scheme-mode "scheme" "Turn on scheme mode" t)
> (add-hook 'scheme-mode-hook 'turn-on-font-lock)
> 
> I only want 'newlisp-mode++ to be used when the file extension is ".lsp". If
> the file extension is ".scm", I would want 'scheme-mode, but I would *not* 
> want
> the code from 'newlisp-mode++ to take effect. 
> 
> One solution is derived-mode, but I've had no luck with it. For the time 
> being
> (until I've had another 6 months or so of elisp under my belt), is there a 
> way
> to restrict the add-hook action to only a file with a .lsp extension? 

Have the function you put in the hook check the filename suffix.

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
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