GNU bug report logs - #41952
CC Mode and js-mode: Erroneous values for comment-start-skip

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Alan Mackenzie <acm <at> muc.de>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#41952: closed (CC Mode and js-mode: Erroneous values for
 comment-start-skip)
Date: Sat, 04 Jul 2020 13:04:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated 4 Jul 2020 13:03:34 -0000
with message-id <20200704130334.58444.qmail <at> mail.muc.de>
and subject line Re: bug#41952: CC Mode and js-mode: Erroneous values for comment-start-skip
has caused the debbugs.gnu.org bug report #41952,
regarding CC Mode and js-mode: Erroneous values for comment-start-skip
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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41952: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=41952
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Alan Mackenzie <acm <at> muc.de>
To: bug-gnu-emacs <at> gnu.org
Subject: CC Mode and js-mode: Erroneous values for comment-start-skip
Date: Fri, 19 Jun 2020 19:40:11 +0000

Hello, Emacs.

In CC Mode modes, a typical value for comment-start-skip is:

    "\\(//+\\|/\\*+\\)\\s *"

.  This is erroneous, since it includes regexp grouping parentheses, yet
the comment being matched doesn't start at (match-end 1), contravening
the definition of comment-start-skip.

This mistake is likely to lead to errors in filling, etc.

The same bug is present in js-mode.

-- 
Alan Mackenzie (Nuremberg, Germany).

[Message part 3 (message/rfc822, inline)]

From: Alan Mackenzie <acm <at> muc.de>
To: Alan Mackenzie <acm <at> muc.de>
Cc: 41952-done <at> debbugs.gnu.org
Subject: Re: bug#41952: CC Mode and js-mode: Erroneous values for
 comment-start-skip
Date: 4 Jul 2020 13:03:34 -0000

In article <mailman.128.1592595664.2574.bug-gnu-emacs <at> gnu.org> you wrote:
> Hello, Emacs.

> In CC Mode modes, a typical value for comment-start-skip is:

>     "\\(//+\\|/\\*+\\)\\s *"

> .  This is erroneous, since it includes regexp grouping parentheses, yet
> the comment being matched doesn't start at (match-end 1), contravening
> the definition of comment-start-skip.

> This mistake is likely to lead to errors in filling, etc.

> The same bug is present in js-mode.

Fixed in master.

-- 
Alan Mackenzie (Nuremberg, Germany).

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