GNU bug report logs - #11208
23.4; shell-command-on-region does not {de,en}code as documented

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#11208: closed (23.4; shell-command-on-region does not
 {de,en}code as documented)
Date: Mon, 09 Apr 2012 17:02:01 +0000

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Your message dated Mon, 09 Apr 2012 19:58:50 +0300
with message-id <83y5q47sfp.fsf <at> gnu.org>
and subject line Re: bug#11208: 23.4; shell-command-on-region does not {de,en}code as documented
has caused the debbugs.gnu.org bug report #11208,
regarding 23.4; shell-command-on-region does not {de,en}code as documented
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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From: Gustav Hållberg <gustav <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.4; shell-command-on-region does not {de,en}code as documented
Date: Mon, 9 Apr 2012 13:09:07 +0200

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shell-command-on-region (M-|) does not do the {de,en}coding of I/O to the
process as documented.

It says (if I read it correctly) that it will use buffer-file-coding-system
(at least unless coding-system-for-{read,write} are set) for output to and
input from (if doing substitution with a prefix argument) the process.

However, it "just" calls call-process-region which will use
default-process-coding-system rather than buffer-file-coding-system.

To try, 'emacs -q', switch to an empty buffer, and:

  C-x RET f iso-8859-7 RET C-SPC C-u M-| echo -e '\0245' RET

This does not insert a drachma sign.

However, if you run (setq default-process-coding-system '(iso-8859-7
iso-8859-7)) first, it does indeed produce a drachma.

Output encoding works the same way.

- Gustav

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Gustav Hållberg <gustav <at> gmail.com>
Cc: 11208-done <at> debbugs.gnu.org
Subject: Re: bug#11208: 23.4;
	shell-command-on-region does not {de,en}code as documented
Date: Mon, 09 Apr 2012 19:58:50 +0300

> Date: Mon, 9 Apr 2012 13:09:07 +0200
> From: Gustav Hållberg <gustav <at> gmail.com>
> 
> shell-command-on-region (M-|) does not do the {de,en}coding of I/O to the
> process as documented.
> 
> It says (if I read it correctly) that it will use buffer-file-coding-system
> (at least unless coding-system-for-{read,write} are set) for output to and
> input from (if doing substitution with a prefix argument) the process.
> 
> However, it "just" calls call-process-region which will use
> default-process-coding-system rather than buffer-file-coding-system.

Thanks, I made the doc string match the implementation.

The fix is committed as revision 107794 on the emacs-24 branch, and
will be in Emacs 24.1.

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