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Re: auto-fill-mode and docstring
From: |
Robert J. Chassell |
Subject: |
Re: auto-fill-mode and docstring |
Date: |
Mon, 13 Sep 2004 13:14:39 +0000 (UTC) |
Katsumi Yamaoka <address@hidden> wrote
... auto-fill-mode ... inserts undesired spaces in the
beginning of lines. For instance, when I type space just after
`jumps' in the following form
(defun quick-brown-fox (jumps-over &optional the-lazy-dog)
"The quich brown fox jumps over the lazy dog.
The quich brown fox jumps over the lazy dog. The quich brown fox jumps
, it is folded as follows:
...
The quich brown fox jumps over the lazy dog. The quich brown fox
jumps
Yes, I repeated the bug in a Lisp Interaction buffer (the `*scratch*'
buffer) with auto-fill turned on.
Using today's CVS snapshot, Mon, 2004 Sep 13 12:01 UTC
GNU Emacs 21.3.50.35 (i686-pc-linux-gnu, GTK+ Version 2.4.9)
started with
/usr/local/src/emacs/src/emacs -Q
The bug occurs when do-auto-fill, which is in lisp/simple.el, tries
to find a fill-prefix automatically and the current fill-prefix is "".
On the other hand, M-q (fill-paragraph) does the filling properly.
That is because fill-paragraph, which is in lisp/textmodes/fill.el,
calls fill-paragraph-function. In this mode, that function has the
value of lisp-fill-paragraph (in lisp/emacs-lisp/lisp-mode.el).
However, do-auto-fill does not call fill-paragraph-function.
When I changed do-auto-fill to call fill-paragraph-function, it
filled properly both in buffers in lisp-interaction-mode and text-mode
with auto-fill-mode on, but it failed in a buffer in lisp-mode and
auto-fill-mode on.
(By default, neither a lisp-interaction-mode nor a lisp-mode buffer
turn on auto-fill-mode.)
(For the unsuccessful fix, I added the fill-paragraph-function
expression from fill-paragraph to do-auto-fill like this:
(defun do-auto-fill ()
(let (fc justify give-up
(fill-prefix fill-prefix))
! (if (or
! ;; First try fill-paragraph-function.
! (and fill-paragraph-function
! ....
)
Unfortunately, I do not have time to investigate this further.
--
Robert J. Chassell
address@hidden GnuPG Key ID: 004B4AC8
http://www.rattlesnake.com http://www.teak.cc