🚀 go-pugleaf

GNU Emacs 18.55.1 of Tue Oct 31 1989 on marat (hpux)

I suggest that header lines in outline mode not be auto-filled.  That
is, if the current line begins with outline-regexp, it should not be
wrapped.  This is so that headers remain headers, and don't get
"mixed" with the text.  Of course, I can imagine a style of use of
outline mode where this feature is not wanted (headers as first line
of paragraph rather than as titles), so I guess it needs to be
customizable.  What I've done for myself is add an extra condition in
do-auto-fill: 

(defun do-auto-fill ()
  (or (and (eq major-mode 'outline-mode)
	   (save-excursion
	     (beginning-of-line)
	     (looking-at outline-regexp)))
	...

but it could equally well be done by having a different do-auto-fill
for outline-mode or with (yet another) variable:

(defun do-auto-fill ()
  (or (and header-nofill
	   (save-excursion
	     (beginning-of-line)
	     (looking-at outline-regexp)))
	...

or

(defun do-auto-fill ()
  (or (and nofill-regexp
	   (save-excursion
	     (beginning-of-line)
	     (looking-at nofill-regexp)))
	...

Problem: synchronizing nofill-regexp and outline-regexp.