GNU bug report logs - #16655
24.3.50; M-q on a command line does mix up commands and comments

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Sebastien Vauban" <sva-news <at> mygooglest.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; M-q on a command line does mix up commands and comments
Date: Wed, 05 Feb 2014 17:21:32 +0100

Hello,

With such a shell script file:

--8<---------------cut here---------------start------------->8---
#!/bin/sh

# display symbol definitions, as found in the relevant manual (for AWK, C, Emacs Lisp, and other languages that have documentation in Info)
echo Some text
--8<---------------cut here---------------end--------------->8---

We can observe that:

- `M-q' done on the first line will correctly refill the comment into
  2 lines

--8<---------------cut here---------------start------------->8---
  # display symbol definitions, as found in the relevant manual (for AWK, C,
  # Emacs Lisp, and other languages that have documentation in Info)
  echo Some text
--8<---------------cut here---------------end--------------->8---

- `M-q' done on the second line will completely break the code:

--8<---------------cut here---------------start------------->8---
  # display symbol definitions, as found in the relevant manual (for AWK, C,
  Emacs Lisp, and other languages that have documentation in Info) echo Some text
--8<---------------cut here---------------end--------------->8---

See http://screencast.com/t/XGs10gmz0m2.

Best regards,
  Seb

In GNU Emacs 24.3.50.1 (i686-pc-mingw32)
 of 2013-10-19 on LEG570
Bzr revision: 114715 rgm <at> gnu.org-20131019023520-s8mwtib7xcx9e05w
Windowing system distributor `Microsoft Corp.', version 6.2.9200
Configured using:
 `configure --enable-checking 'CFLAGS=-O0 -g3' CPPFLAGS=-DGLYPH_DEBUG=1'

Major mode: Shell-script

-- 
Sebastien Vauban

Message #8 received at 16655 <at> debbugs.gnu.org (full text, mbox):

From: Marcin Borkowski <mbork <at> mbork.pl>
To: "Sebastien Vauban" <sva-news <at> mygooglest.com>
Cc: 16655 <at> debbugs.gnu.org
Subject: Re: bug#16655: 24.3.50;
 M-q on a command line does mix up commands and comments
Date: Thu, 04 Feb 2016 22:00:42 +0100

Hi all,

I'm writing to confirm that this is still present in GNU Emacs
25.1.50.1.  To make it a bit more precise: the OP means M-q with point
on either the 3rd line of the script (i.e., the line beginning with "#
display"), which works fine, and then M-q on the fourth line (i.e., the
line beginning with "echo"), which breaks as described below.

Best,
Marcin Borkowski


On 2014-02-05, at 17:21, "Sebastien Vauban" <sva-news <at> mygooglest.com> wrote:

> Hello,
>
> With such a shell script file:
>
> #!/bin/sh
>
> # display symbol definitions, as found in the relevant manual (for AWK, C, Emacs Lisp, and other languages that have documentation in Info)
> echo Some text
>
>
> We can observe that:
>
> - `M-q' done on the first line will correctly refill the comment into
>   2 lines
>
>   # display symbol definitions, as found in the relevant manual (for AWK, C,
>   # Emacs Lisp, and other languages that have documentation in Info)
>   echo Some text
>
>
> - `M-q' done on the second line will completely break the code:
>
>   # display symbol definitions, as found in the relevant manual (for AWK, C,
>   Emacs Lisp, and other languages that have documentation in Info) echo Some text
>
> See http://screencast.com/t/XGs10gmz0m2.
>
> Best regards,
>   Seb
>
> In GNU Emacs 24.3.50.1 (i686-pc-mingw32)
>  of 2013-10-19 on LEG570
> Bzr revision: 114715 rgm <at> gnu.org-20131019023520-s8mwtib7xcx9e05w
> Windowing system distributor `Microsoft Corp.', version 6.2.9200
> Configured using:
>  `configure --enable-checking 'CFLAGS=-O0 -g3' CPPFLAGS=-DGLYPH_DEBUG=1'
>
> Major mode: Shell-script

Message #11 received at 16655 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefan <at> marxist.se>
To: Marcin Borkowski <mbork <at> mbork.pl>
Cc: 16655 <at> debbugs.gnu.org
Subject: Re: bug#16655: 24.3.50; M-q on a command line does mix up commands
 and comments
Date: Thu, 26 Sep 2019 14:55:15 +0200

tags 16655 + confirmed
found 16655 25.1
found 16655 26.1
quit

Marcin Borkowski <mbork <at> mbork.pl> writes:

> I'm writing to confirm that this is still present in GNU Emacs
> 25.1.50.1.  To make it a bit more precise: the OP means M-q with point
> on either the 3rd line of the script (i.e., the line beginning with "#
> display"), which works fine, and then M-q on the fourth line (i.e., the
> line beginning with "echo"), which breaks as described below.
[...]
>> With such a shell script file:
>>
>> #!/bin/sh
>>
>> # display symbol definitions, as found in the relevant manual (for AWK, C, Emacs Lisp, and other languages that have documentation in Info)
>> echo Some text
>>
>>
>> We can observe that:
>>
>> - `M-q' done on the first line will correctly refill the comment into
>>   2 lines
>>
>>   # display symbol definitions, as found in the relevant manual (for AWK, C,
>>   # Emacs Lisp, and other languages that have documentation in Info)
>>   echo Some text
>>
>>
>> - `M-q' done on the second line will completely break the code:
>>
>>   # display symbol definitions, as found in the relevant manual (for AWK, C,
>>   Emacs Lisp, and other languages that have documentation in Info) echo Some text
>>
>> See http://screencast.com/t/XGs10gmz0m2.

I can reproduce this on Emacs 26.1 and current master.

Best regards,
Stefan Kangas

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