From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitri Makarov <dmakarv@gmail.com>
Subject: Re: graphviz dot block export and evaluate
Date: Fri, 28 Sep 2012 19:27:59 +0200
Message-ID: <821644A1-7764-401C-858A-3ED9FF60629F@gmail.com>
References: <C62ACE57-E48C-4F93-B585-CC75BE6363C7@gmail.com>
	<m1k3vekr2w.fsf@tsdye.com>
Mime-Version: 1.0 (Mac OS X Mail 6.1 \(1498\))
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: quoted-printable
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([208.118.235.92]:44110)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <dmakarv@gmail.com>) id 1THeME-00026L-Se
	for emacs-orgmode@gnu.org; Fri, 28 Sep 2012 13:28:13 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <dmakarv@gmail.com>) id 1THeM7-0006bL-Ac
	for emacs-orgmode@gnu.org; Fri, 28 Sep 2012 13:28:10 -0400
Received: from mail-wi0-f177.google.com ([209.85.212.177]:56680)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <dmakarv@gmail.com>) id 1THeM7-0006ah-0H
	for emacs-orgmode@gnu.org; Fri, 28 Sep 2012 13:28:03 -0400
Received: by wibhj13 with SMTP id hj13so74225wib.12
	for <emacs-orgmode@gnu.org>; Fri, 28 Sep 2012 10:28:02 -0700 (PDT)
In-Reply-To: <m1k3vekr2w.fsf@tsdye.com>
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>

Hi Tom and Bastien,

Thank you, your answers helped a lot.
My fault that I used "export" not "exports" and that I didn't read the =
section Specific header arguments in the Org manual.

Thanks!

Dmitri

On Sep 28, 2012, at 7:14 PM, tsd@tsdye.com (Thomas S. Dye) wrote:

> Dmitri Makarov <dmakarv@gmail.com> writes:
>=20
>> Hi all,
>>=20
>> Has anyone successfully exported and evaluated src blocks with
>> graphviz dot code?
>> I'm trying to export this block
>>=20
>>   #+BEGIN_SRC dot :export both
>>     digraph G {
>>       A -> B
>>     }
>>   #+END_SRC
>>=20
>> and I'm getting the error
>>=20
>> org-babel-exp processing...
>> executing Dot code block...
>> file-name-extension: Wrong type argument: stringp, nil
>>=20
>> How do you debug such problems?
>>=20
>> Regards,
>>=20
>> Dmitri
>=20
> Aloha Dmitri,
>=20
> Currently, you can debug such problems by looking at the source code =
of
> ob-dot.el.  Or, by asking the list, as you did.
>=20
> Your example is lacking a :file header argument.  dot source code =
blocks
> produce graphics files and babel leaves it to the user to name the
> output file.  The file-name-extension function is looking for the =
value
> of the :file header argument, so that it can configure the call to =
dot.
> It is expecting to see a string, but gets nil because the header
> argument is absent.
>=20
> Also, the correct keyword is :exports, with a final "s".
>=20
> You can find an example of dot code use here:
> http://www.jstatsoft.org/v46/i03
>=20
> hth,
> Tom
> --=20
> Thomas S. Dye
> http://www.tsdye.com