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bug#2470: 23.0.90; auto-fill-mode, :minor-mode-function
From: |
Stefan Monnier |
Subject: |
bug#2470: 23.0.90; auto-fill-mode, :minor-mode-function |
Date: |
Wed, 25 Feb 2009 14:56:44 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.90 (gnu/linux) |
> So it seems to be in need of a fix, but I see no bug filed against it.
Then file one.
> 2. What is :minor-mode-function? It is used in a couple of places in
> the Emacs Lisp sources, with no comment or other explanation. It is
> not in the Elisp manual. It seems to be a way to associate a
> different function with a minor mode - a function with a different
> name from the mode itself. For example, `auto-fill-function' is the
> :minor-mode-function for `auto-fill-mode'.
> Is this mechanism still needed if `define-minor-mode' is used? Is it
> just for compatibility with XEmacs code and legacy code?
It's got nothing to do with XEmacs, AFAIK, but it does have with legacy
code such as auto-fill-function.
> How about documenting it - at least with a comment in the code
> somewhere: what is for, how and when to use it.
When to use it, is easy: never in new code.
Stefan