From: Joost Kremers <joostkremers@fastmail.fm>
To: Matthias Pfeifer <mpfeifer77@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: call-process writing to the wrong buffer
Date: Wed, 02 Nov 2016 12:41:24 +0100 [thread overview]
Message-ID: <87mvhi6rdn.fsf@fastmail.fm> (raw)
In-Reply-To: <CAPzsW6h9n+FbrEOg3u1JyUz6pZV_NCC9jcdSBET=SoEBQqjWRw@mail.gmail.com>
On Wed, Nov 02 2016, Matthias Pfeifer wrote:
> I frequently have to look into a binary file and want to
> translate it into
> text by using an external program. I came up with this snippet
> from which I
> had expected that it opens a new buffer, selects that buffer and
> writes
> into it the output of this external program:
>
> (defun mp/show-x509 ()
> (interactive)
> (let ((cert-file (buffer-file-name))
> (right-window (split-window-right))
> (openssl-buffer (generate-new-buffer
> (generate-new-buffer-name
> "*openssl*"))))
> (select-window right-window)
> (set-window-buffer nil openssl-buffer)
> (call-process "openssl" nil t (list openssl-buffer t) "x509"
> "-text"
> "-noout" "-in" cert-file)))
>
> However I must have some misunderstanding here. The output of
> call-process
> is in fact inserted into the window on the left (left when
> assuming there
> is only one window in the frame when caling mp/show-x509). And I
> really do
> not have a clue whats wrong.
You probably want:
(call-process "openssl" nil (list openssl-buffer t) t "x509"
"-text" "-noout" "-in" cert-file)
(Swap third and fourth argument.)
--
Joost Kremers
Life has its moments
next prev parent reply other threads:[~2016-11-02 11:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-02 11:30 call-process writing to the wrong buffer Matthias Pfeifer
2016-11-02 11:41 ` Joost Kremers [this message]
2016-11-02 17:43 ` Matthias Pfeifer
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