GNU bug report logs - #13646
Mode-specific and file-regexp-specific settings

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Package: emacs;

Reported by: Didier Verna <didier <at> didierverna.net>

Date: Thu, 7 Feb 2013 12:46:01 UTC

Severity: wishlist

Tags: wontfix

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Didier Verna <didier <at> didierverna.net>
To: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
Cc: 13646 <at> debbugs.gnu.org, viniciusjl <at> ig.com.br
Subject: bug#13646: mode-specific and file-regexp-specific settings
Date: Thu, 07 Feb 2013 18:25:37 +0100
Stefan Monnier <monnier <at> IRO.UMontreal.CA> wrote:

> Also, we should introduce a way to set variables to a value that is
> mode-dependent.  Maybe something like
>
>   (setq-modes whitespace-style
>      (foo-mode 'face)
>      (bar-mode 'trailing)
>      (t 'tab-mark))
>
> Which could turn into something akin to
>
>   (setq-default whitespace-style 'tab-mark)
>   (add-hook 'bar-mode-hook (lambda () (setq-local whitespace-style 'trailing)))
>   (add-hook 'foo-mode-hook (lambda () (setq-local whitespace-style 'face)))

  Oh, and BTW this is not gonna work. What you're doing here is
  instantiating buffer-local values once and for all. If later on the
  user changes his mode-specific settings, they won't be propagated to
  the already existing buffers.

  On the contrary, what I do in whitespace.el (and I think what should
  be done in a general solution) is to dynamically retreive the
  file/mode-specific value everytime it's needed, so that user changes
  are visible everywhere immediately (this is what specifiers do in
  XEmacs in fact).

-- 
ELS 2013, June 3/4, Madrid, Spain:  http://els2013.european-lisp-symposium.org

Scientific site:   http://www.lrde.epita.fr/~didier
Music (Jazz) site: http://www.didierverna.com




This bug report was last modified 4 years and 304 days ago.

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