Re: fill-paragraph / fill region in latex (auctex) buffer

[Ralf Angeli <dev.null@iwi.uni-sb.de>]

* Stefan Monnier (2005-11-23) writes:

>> In which sense?  That you cannot hook specialized filling functions
>> into `fill-region'?
>
> Either that, or that fill-region doesn't understand the fact that blocks of
> comments are paragraphs (actually fill-paragraph doesn't quite understand
> it either: it only works when you're inside the comment, and even then only
> in some cases).

`fill-region' should probably call a comment-aware function for
filling paragraphs.  I managed to improve this a bit by using
	    (if (and fill-paragraph-handle-comment
		     comment-start (equal comment-end "")
		     (setq fill-pfx (fill-comment-paragraph)))
		(goto-char end)
	      (setq fill-pfx (fill-region-as-paragraph (point) end justify
						       nosqueeze)))
instead of the simple `fill-region-as-paragraph' call (in the else
part of the above form) currently in `fill-region' and making `end' a
marker.  But it would probably make more sense to make
`fill-region-as-paragraph' aware of comments.

Anyway, AUCTeX provides specialized filling functions using
specialized functions for moving forward and backward over paragraphs
and these functions as well as their key bindings are documented in
AUCTeX's manual.  The functions are able to fill paragraphs and
regions with comments correctly and are even capable of doing
syntax-aware indentation inside of comments.

So for the problem at hand the OP should simply use the functions
provided by AUCTeX instead of `fill-region'.  Of course it would be
nice if the specialized function(s) could be hooked into `fill-region'
because then the menu entry `Edit --> Fill' would work as well.

-- 
Ralf