From: Luc Teirlinck <teirllm@dms.auburn.edu>
Cc: emacs-devel@gnu.org
Subject: Re: Defcustom write-file-functions and write-contents-functions?
Date: Wed, 31 Dec 2003 13:27:08 -0600 (CST) [thread overview]
Message-ID: <200312311927.hBVJR8H29112@raven.dms.auburn.edu> (raw)
In-Reply-To: <iluu13gx5jj.fsf@latte.josefsson.org> (message from Simon Josefsson on Wed, 31 Dec 2003 18:26:08 +0100)
Simon Josefsson wrote:
The example I gave, copyright-update, appear to be intended for users.
This does not contradict what I said. From its documentation,
`write-contents-functions' seems to be a mode-specific way to save
files, `write-file-functions' appears to be a file-specific way to do
so. Custom can not really handle either buffer-local or file-local
customization. Personally, I believe you need a new _normal_ hook,
intended to be called unconditionally.
This could work too. My reason for choosing w-f-f was that
copyright.el suggested it, and I want to use custom to enable that
package.
That suggestion was wrong, because w-f-f is _not_ unconditionally run.
It is the third of a bunch of hooks called in an `or' form in
`basic-save-buffer'. If any of the two prior hooks in the or form
takes care of saving the file, w-f-f is _not_ run. (I personally
believe that the docstring and the definition in he Elisp manual
should mention this.) Your patch replaced it with w-c-f. This is
better, because that is the first hook in the `or' form. But major
modes would seem free to override anything the user customized using
your defcustom, because the variable is intended to be set
buffer-locally by major modes.
Again, I personally believe that for what you want to do, one needs a
new normal hook, to be called unconditionally, _before_ the `or' form
in `basic-save-buffer'.
Sincerely,
Luc.
next prev parent reply other threads:[~2003-12-31 19:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-31 14:38 Defcustom write-file-functions and write-contents-functions? Simon Josefsson
2003-12-31 16:57 ` Luc Teirlinck
2003-12-31 17:26 ` Simon Josefsson
2003-12-31 19:27 ` Luc Teirlinck [this message]
2003-12-31 19:56 ` Simon Josefsson
2003-12-31 20:10 ` Luc Teirlinck
2004-01-01 5:52 ` Eli Zaretskii
2004-01-01 12:22 ` Simon Josefsson
2004-01-01 14:45 ` Eli Zaretskii
2004-01-04 23:33 ` Stefan Monnier
2004-01-05 0:14 ` Luc Teirlinck
2004-01-05 0:31 ` Miles Bader
2004-01-05 0:46 ` Simon Josefsson
2004-01-05 17:56 ` Richard Stallman
2004-01-05 18:38 ` Simon Josefsson
2004-01-04 14:54 ` Per Abrahamsen
2004-01-05 4:41 ` Luc Teirlinck
2004-01-07 2:07 ` Luc Teirlinck
2004-01-07 3:03 ` Luc Teirlinck
2004-01-07 15:05 ` Richard Stallman
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