GNU bug report logs - #24157
25.1.50; (princ "..." t) does not go to stderr in batch mode

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Package: emacs;

Reported by: Clément Pit--Claudel <clement.pitclaudel <at> live.com>

Date: Fri, 5 Aug 2016 05:30:02 UTC

Severity: minor

Tags: notabug

Found in version 25.1.50

Done: npostavs <at> users.sourceforge.net

Bug is archived. No further changes may be made.

Full log

Message #14 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Clément Pit--Claudel <clement.pit <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#24157: 25.1.50; (princ "..." t) does not go to stderr in
 batch mode
Date: Fri, 5 Aug 2016 03:11:59 -0400

[Message part 1 (text/plain, inline)]
On 2016-08-05 02:03, Eli Zaretskii wrote:
> OK to close this bug?

Thanks Eli. Sorry for the false alarm.

This means that the only way to write to stderr without a newline is (let ((cursor-in-echo-area t)) (message ...)), right? This is not ideal.

Also, I still think that this is an issue:

  $ emacs --batch --eval '(progn (princ "to stdout!") (message "to stderr."))' > /dev/null

  to stderr.
  $ emacs --batch --eval '(progn (message "to stderr.") (princ "to stdout!"))' > /dev/null
  to stderr.
  $ emacs --batch --eval '(progn (princ "to stdout!") (message "to stderr."))' 2> /dev/null
  to stdout!

If I read what you sent correctly, the first two rpograms should produce the same output, and the call to princ shouldn't cause 'message' to insert a newline before "to stderr.", right?

Clément.


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