Re: [O] graphviz dot block export and evaluate
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, t...@tsdye.com (Thomas S. Dye) wrote:
> Dmitri Makarov writes:
>
>> Hi all,
>>
>> Has anyone successfully exported and evaluated src blocks with
>> graphviz dot code?
>> I'm trying to export this block
>>
>> #+BEGIN_SRC dot :export both
>> digraph G {
>> A -> B
>> }
>> #+END_SRC
>>
>> and I'm getting the error
>>
>> org-babel-exp processing...
>> executing Dot code block...
>> file-name-extension: Wrong type argument: stringp, nil
>>
>> How do you debug such problems?
>>
>> Regards,
>>
>> Dmitri
>
> Aloha Dmitri,
>
> Currently, you can debug such problems by looking at the source code of
> ob-dot.el. Or, by asking the list, as you did.
>
> 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.
>
> Also, the correct keyword is :exports, with a final "s".
>
> You can find an example of dot code use here:
> http://www.jstatsoft.org/v46/i03
>
> hth,
> Tom
> --
> Thomas S. Dye
> http://www.tsdye.com
Re: [O] graphviz dot block export and evaluate
Dmitri Makarov writes:
> Hi all,
>
> Has anyone successfully exported and evaluated src blocks with
> graphviz dot code?
> I'm trying to export this block
>
>#+BEGIN_SRC dot :export both
> digraph G {
>A -> B
> }
>#+END_SRC
>
> and I'm getting the error
>
> org-babel-exp processing...
> executing Dot code block...
> file-name-extension: Wrong type argument: stringp, nil
>
> How do you debug such problems?
>
> Regards,
>
> Dmitri
Aloha Dmitri,
Currently, you can debug such problems by looking at the source code of
ob-dot.el. Or, by asking the list, as you did.
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.
Also, the correct keyword is :exports, with a final "s".
You can find an example of dot code use here:
http://www.jstatsoft.org/v46/i03
hth,
Tom
--
Thomas S. Dye
http://www.tsdye.com
Re: [O] graphviz dot block export and evaluate
Hi Dmitri,
Dmitri Makarov writes:
>#+BEGIN_SRC dot :export both
> digraph G {
>A -> B
> }
>#+END_SRC
You need a :file parameter:
#+BEGIN_SRC dot :file test.png :export both
digraph G {
A -> B
}
#+END_SRC
HTH,
--
Bastien
[O] graphviz dot block export and evaluate
Hi all,
Has anyone successfully exported and evaluated src blocks with graphviz dot
code?
I'm trying to export this block
#+BEGIN_SRC dot :export both
digraph G {
A -> B
}
#+END_SRC
and I'm getting the error
org-babel-exp processing...
executing Dot code block...
file-name-extension: Wrong type argument: stringp, nil
How do you debug such problems?
Regards,
Dmitri
