Re: Graphviz python filter without using pygraphviz

[Mohammed Haris Minai <mhminai-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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The code is here 
<https://github.com/jgm/pandocfilters/blob/master/examples/graphviz.py>. 
From what I could understand:

   1. It creates an object of type pygraphviz.AGraph feeling it the 
   enclosed code from the code block marked as .graphviz
   2. Creates the file name that needs to be written to by reading other 
   arguments from the code block
   3. Writes the "png/pdf" file via pygraphviz to this file.
   4. Modifies the markdown to be an image link pointing to this new file

I would like to get rid of the dependency on pygraphviz, so instead if the 
filter could replace step 3 with a run on "dot" program, something like 
"dot -T{filetype} -o{src} < {code}"
everything should work without depending upon pygraphviz. Note that all 
text delimited by {} is already being formed by the filter.

On Tuesday, January 20, 2015 at 5:35:52 PM UTC+5:30, Ivan Miljenovic wrote:
>
> What does the graphviz filter do?  Just take the raw Dot code and run 
> it through dot/neato? 
>
> (clipped for brevity)

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