From: Alan Mackenzie <acm@muc.de>
To: help-gnu-emacs@gnu.org
Subject: Re: comments in cc mode
Date: Sat, 22 May 2010 19:15:40 +0000 (UTC) [thread overview]
Message-ID: <ht9ags$2oo9$1@colin2.muc.de> (raw)
In-Reply-To: 803a9456-e1ed-433b-b660-df186b066249@z17g2000vbd.googlegroups.com
Michael <mmassmann@econ.vu.nl> wrote:
> Dear Alan,
> On May 22, 11:43?am, Alan Mackenzie <a...@muc.de> wrote:
>> Hi, Michael,
>> "Massmann, M. (Michael)" <mmassm...@feweb.vu.nl> wrote:
>> > Dear Andreas,
>> > Many thanks for this. Could you point me to the documentation for the
>> > options available for comment-style? After playing around with some of
>> > them I did not get the desired effect.
>> > I also had a look at cc-mode's `c-indent-comment-alist' and set every
>> > single entry to `column' and `nil', so as to have the default column
>> > (ie 100) apply, no matter what the surrounding syntax is. The variable
>> > `c-indent-comments-syntactically-p' I set to nil so that it does not
>> > override the previous settings.
>> > This seems to have the desired effect that when I press M-; to insert a
>> > *new* comment on a line, empty or not, the comment indeed starts in
>> > column 100.
>> > Yet when I press M-; to re-align an *existing* comment, the entire
>> > comment is moved to a column other than 100 in 9 out of 10 cases.
>> > Any advice on how to rectify this problem would be appreciated. Thanks!
>> I've just gone through `comment-dwim' in edebug (the Emacs debugger), and
>> it seems like comments are being made to fit within `fill-column'. ?I
>> don't know why this is being done, but could you try setting it to a high
>> value, say
>> ? ? (setq fill-column 150)
>> . ?Does this solve the immediate problem? ?Does it introduce any new
>> problems?
>> > Regards,
>> > Michael
>> --
>> Alan Mackenzie (Nuremberg, Germany).
> Many thanks for your suggestion! This was precisely what was going
> pear-shaped. I did have my fill-column at 150 to start with, but some
> of my comments were more than 50 characters long, and they seem to
> have been shifted left such that they ended on column 150. I have now
> increased fill-column to 200 and everything works beautifully.
> One more question if I may: is there an easy way to tell Emacs to
> automatically set fill-column to 200 when in cc-mode and to leave it
> at 150 otherwise (eg when loading auctex)? Column 200 is off my screen
> and it is only with code comments that this doesn't bother me.
The following (not tested) should do it:
(setq-default fill-column 150)
(defun mm-cc-fill-column ()
(setq fill-column 200))
(add-hook 'c-mode-common-hook 'mm-cc-fill-column)
> Thanks again for your help,
No problem. I must say, you've got a MUCH wider screen than I have. ;-)
> Michael
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2010-05-22 19:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-06 15:39 comments in cc mode Michael
2009-10-07 19:04 ` John A Pershing Jr
2009-10-08 9:06 ` Andreas Röhler
2010-05-20 9:33 ` Massmann, M. (Michael)
[not found] ` <mailman.0.1274363526.31702.help-gnu-emacs@gnu.org>
2010-05-22 9:43 ` Alan Mackenzie
2010-05-22 16:20 ` Michael
2010-05-22 19:15 ` Alan Mackenzie [this message]
2010-05-23 11:45 ` Michael
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