GNU bug report logs - #47167
Multi-line comment-region with empty comment-continue

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Package: emacs;

Reported by: Juri Linkov <juri <at> linkov.net>

Date: Mon, 15 Mar 2021 17:11:02 UTC

Severity: normal

Tags: fixed, patch

Fixed in version 28.0.50

Done: Juri Linkov <juri <at> linkov.net>

Bug is archived. No further changes may be made.

Full log

Message #11 received at 47167 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: "47167 <at> debbugs.gnu.org" <47167 <at> debbugs.gnu.org>
Subject: Re: [External] : bug#47167: Multi-line comment-region with empty
 comment-continue
Date: Tue, 16 Mar 2021 19:47:37 +0200

> (Haven't looked at your patch.)
>
> Sounds like a reasonable, and useful thing to do.
>
> However, `comment-region' also has optional behaviors
> that involve its use of a prefix arg.  How with those
> interact with what you propose?  Do they even make
> sense (e.g. nesting comment levels and unnesting them)?

With (setq-local comment-style 'extra-line comment-continue ""),
`comment-region' currently breaks HTML syntax
because HTML doesn't support nested comments:

<!--
<!-- line 1 -->
<!-- line 2 -->
<!-- line 3 -->
  -->

With the proposed patch, HTML syntax stays valid:

<!--
line 1
line 2
line 3
  -->
This bug report was last modified 4 years and 128 days ago.

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