From: Eli Zaretskii <eliz@gnu.org>
To: "Jan Djärv" <jan.h.d@swipnet.se>
Cc: larsi@gnus.org, emacs-devel@gnu.org
Subject: Re: Redirecting standard output
Date: Thu, 21 Apr 2011 15:15:20 -0400 [thread overview]
Message-ID: <E1QCzLU-0001st-5Q@fencepost.gnu.org> (raw)
In-Reply-To: <876FF1E0-A9BB-4804-845C-46947AC085EE@swipnet.se> (message from Jan Djärv on Thu, 21 Apr 2011 19:05:39 +0200)
> Cc: Lars Magne Ingebrigtsen <larsi@gnus.org>,
> "emacs-devel@gnu.org" <emacs-devel@gnu.org>
> From: Jan Djärv <jan.h.d@swipnet.se>
> Date: Thu, 21 Apr 2011 19:05:39 +0200
>
> > On Posix systems, we use a pipe to read from subprocess's STDOUT. You
> > cannot do the same with STDERR, but you can redirect STDERR to a
> > temporary file, and then read it when the subprocess exits.
>
> That is news to me. I've redirected STDERR to a pipe many times in other programs. Why can't it be done in Emacs?
Maybe I'm missing something, but the call to `pipe' produces only 2
file descriptors on each end. So you can have either stdout or stderr
of the subprocess, or both of them together, but not both of them
separately.
next prev parent reply other threads:[~2011-04-21 19:15 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-20 21:19 Redirecting standard output Lars Magne Ingebrigtsen
2011-04-20 22:54 ` Stefan Monnier
2011-04-21 1:54 ` Lars Magne Ingebrigtsen
2011-04-21 6:10 ` Eli Zaretskii
2011-04-21 11:45 ` Lars Magne Ingebrigtsen
2011-04-21 13:25 ` Lars Magne Ingebrigtsen
2011-04-21 14:10 ` Eli Zaretskii
2011-04-21 15:15 ` Lars Magne Ingebrigtsen
2011-04-21 15:46 ` Lars Magne Ingebrigtsen
2011-04-21 16:15 ` Eli Zaretskii
2011-04-21 16:22 ` Lars Magne Ingebrigtsen
2011-04-21 16:24 ` Lars Magne Ingebrigtsen
2011-04-21 16:55 ` Eli Zaretskii
2011-04-21 17:05 ` Jan Djärv
2011-04-21 19:15 ` Eli Zaretskii [this message]
2011-04-21 19:19 ` Davis Herring
2011-04-21 19:31 ` Lars Magne Ingebrigtsen
2011-04-22 5:50 ` Eli Zaretskii
2011-04-23 18:46 ` Lars Magne Ingebrigtsen
2011-04-23 20:10 ` Eli Zaretskii
2011-04-24 8:30 ` Jan Djärv
2011-04-30 23:58 ` Lars Magne Ingebrigtsen
2011-05-01 0:06 ` Lars Magne Ingebrigtsen
2011-05-01 17:56 ` Andy Moreton
2011-05-07 11:34 ` Eli Zaretskii
2011-05-07 12:10 ` Eli Zaretskii
2011-05-30 17:39 ` Lars Magne Ingebrigtsen
2011-04-21 16:29 ` Glenn Morris
2011-04-21 8:27 ` Michael Albinus
2011-04-21 5:57 ` Eli Zaretskii
2011-04-21 6:28 ` Thierry Volpiatto
2011-04-21 6:41 ` Eli Zaretskii
2011-04-21 7:33 ` Thierry Volpiatto
2011-04-21 11:40 ` Lars Magne Ingebrigtsen
2011-04-21 11:58 ` Eli Zaretskii
2011-04-21 12:24 ` Lars Magne Ingebrigtsen
2011-04-21 14:25 ` Lars Magne Ingebrigtsen
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