Pandoc filter tikz.py returns "not a valid json value"

Pandoc filter tikz.py returns "not a valid json value"

[Rick Nouwen]

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I'm using the tikz.py pandocfilter to turn latex tikz code in a markdown 
file into images in the output html file. I'm running pandoc version 
1.17.0.2, python 2.7.10 and ImageMagick 6.9.6-4. My pandoc command is:

pandoc -s -c --mathjax -i- t slidy tik.md --filter tikz.py -o tik.html

(but I've tried simpler commands without slidy or mathjax and they give the 
same issue)

Where tik.md contains a simple tikz environment:

\begin{tikzpicture}
\draw (0,0) -- (4,0) -- (4,4) -- (0,4) -- (0,0);
\end{tikzpicture}

tikz.py runs well and it seems to successfully generate the image:

$ pandoc -s -c --mathjax -i -t slidy tik.md --filter tikz.py -o tik.html

This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015) (preloaded 
format=pdflatex) restricted \write18 enabled.

entering extended mode 

(./tikz.tex 

LaTeX2e <2015/01/01> 

Babel ...

.....

[1] (./tikz.aux) )

Output written on tikz.pdf (1 page, 1077 bytes).

Transcript written on tikz.log.

Created image tikz-images/53200b26dfa2c05d2b92647ef74211f7a2ce0c0e.png

pandoc: Error in $: Failed reading: not a valid json value

I am using an unaltered tikz.py so it is not clear to me where the source 
of the problem could be. Any thoughts? 
[duplicate at stackoverflow: 
http://stackoverflow.com/questions/40543436/pandoc-filter-tikz-py-returns-not-a-valid-json-value]

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Re: Pandoc filter tikz.py returns "not a valid json value"

[John MacFarlane]

Try updating your pandocfilters library using pip.

+++ Rick Nouwen [Nov 11 16 01:21 ]:
>   I'm using the tikz.py pandocfilter to turn latex tikz code in a
>   markdown file into images in the output html file. I'm running pandoc
>   version 1.17.0.2, python 2.7.10 and ImageMagick 6.9.6-4. My pandoc
>   command is:
>pandoc -s -c --mathjax -i- t slidy tik.md --filter tikz.py -o tik.html
>
>   (but I've tried simpler commands without slidy or mathjax and they give
>   the same issue)
>
>   Where tik.md contains a simple tikz environment:
>\begin{tikzpicture}
>\draw (0,0) -- (4,0) -- (4,4) -- (0,4) -- (0,0);
>\end{tikzpicture}
>
>   tikz.py runs well and it seems to successfully generate the image:
>
>     $ pandoc -s -c --mathjax -i -t slidy tik.md --filter tikz.py -o
>     tik.html
>
>     This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015)
>     (preloaded format=pdflatex) restricted \write18 enabled.
>
>     entering extended mode
>
>     (./tikz.tex
>
>     LaTeX2e <2015/01/01>
>
>     Babel ...
>
>     .....
>
>     [1] (./tikz.aux) )
>
>     Output written on tikz.pdf (1 page, 1077 bytes).
>
>     Transcript written on tikz.log.
>
>     Created image
>     tikz-images/53200b26dfa2c05d2b92647ef74211f7a2ce0c0e.png
>
>     pandoc: Error in $: Failed reading: not a valid json value
>
>   I am using an unaltered tikz.py so it is not clear to me where the
>   source of the problem could be. Any thoughts?
>   [duplicate at stackoverflow:
>   http://stackoverflow.com/questions/40543436/pandoc-filter-tikz-py-retur
>   ns-not-a-valid-json-value]
>
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>
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Re: Pandoc filter tikz.py returns "not a valid json value"

[Rick Nouwen]

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I tried this, but was already running pandocfilters 1.4.1, so no luck.


>

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Re: Pandoc filter tikz.py returns "not a valid json value"

[John MacFarlane]

It's possible that the filter itself needs updating in light
of the JSON format changes.  (And if so, maybe the example
in the repository needs updating.)

+++ Rick Nouwen [Nov 14 16 01:59 ]:
>   I tried this, but was already running pandocfilters 1.4.1, so no luck.
>
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>   9edf-151f24585a6c%40googlegroups.com.
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>
>References
>
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>   2. mailto:pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
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>   4. https://groups.google.com/d/optout