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From: Michael Heerdegen <michael_heerdegen@web.de>
To: help-gnu-emacs@gnu.org
Subject: Re: Program working with shell-command but not call-process
Date: Fri, 04 Jul 2014 17:21:16 +0200	[thread overview]
Message-ID: <87egy1no9f.fsf@web.de> (raw)
In-Reply-To: slrnlrcvoa.tf0.joost.m.kremers@j.kremers4.news.arnhem.chello.nl

Joost Kremers <joost.m.kremers@gmail.com> writes:

> >     (with-output-to-string
> >       (call-process "git" nil standard-output nil "--version"))
> >       ;=> it returns ""
> >       ;=> `call-process' alone returns 53
>
> `with-output-to-string' takes whatever is sent to `standard-output',
> converts it to a string and returns it. `call-process' sends its output
> to a buffer, or optionally to a file, but not to stdout. So you won't
> get any output from this construct unless `standard-output' is set to a
> buffer.

I don't think this is true.  `with-output-to-string` binds
`standard-output` to a temporary buffer and returns its content, so the
above should work (and actually does work here).

Michael.




  reply	other threads:[~2014-07-04 15:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.4812.1404406058.1147.help-gnu-emacs@gnu.org>
2014-07-04 10:16 ` Program working with shell-command but not call-process Joost Kremers
2014-07-04 15:21   ` Michael Heerdegen [this message]
2014-07-03 16:46 John Mastro
2014-07-03 22:51 ` Michael Heerdegen

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