GNU bug report logs - #1286
comment-dwim on a comment line does not toggle comment

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: bug#1286: marked as done (comment-dwim on a comment line does not
 toggle comment)

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Your message dated Fri, 31 Oct 2008 21:33:32 -0400
with message-id <jwvabcknsf4.fsf-monnier+emacsbugreports <at> gnu.org>
and subject line Re: bug#1286: comment-dwim on a comment line does not toggle comment
has caused the Emacs bug report #1286,
regarding comment-dwim on a comment line does not toggle comment
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
1286: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=1286
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: xah lee <xah <at> xahlee.org>
To: bug-gnu-emacs <at> gnu.org
Subject: comment-dwim on a comment line does not toggle comment
Date: Fri, 31 Oct 2008 14:25:09 -0700

this appears to be like a bug.

in emacs-lisp-mode, if you have a comment like this:

;; This is a comment

and your cursor is somewhere on that line. Now, do comment-dwim, it  
doesn't uncomment the line. It just moves the cursor to the “T”  
in “This”.

Same behavior in cperl mode and probably all others.

I think this might be by design, but it seems counter-intuitive.

In GNU Emacs 22.2.1 (powerpc-apple-darwin8.11.0, Carbon Version 1.6.0)
 of 2008-04-05 on g5.tokyo.stp.isas.jaxa.jp

  Xah
∑ http://xahlee.org/

☄

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: xah lee <xah <at> xahlee.org>
Cc: 1286-done <at> debbugs.gnu.org
Subject: Re: bug#1286: comment-dwim on a comment line does not toggle comment
Date: Fri, 31 Oct 2008 21:33:32 -0400

> this appears to be like a bug.

> in emacs-lisp-mode, if you have a comment like this:

> ;; This is a comment

> and your cursor is somewhere on that line. Now, do comment-dwim, it doesn't
> uncomment the line. It just moves the cursor to the “T”  in “This”.

> Same behavior in cperl mode and probably all others.

> I think this might be by design, but it seems counter-intuitive.

This is the way M-; has worked for as long as I can remember.
It also re-indents the comment, if needed.  If you want to uncomment,
then select the line via e.g. C-a C-SPC C-n and then M-; will do what
you asked for.


        Stefan

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