From: John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>
To: "Agustín Martín"
<agusmba-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
pandoc-discuss
<pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: Re: lua filter, convert Para into RawBlock
Date: Wed, 06 Jun 2018 15:00:17 -0700 [thread overview]
Message-ID: <yh480k7enbh8y6.fsf@johnmacfarlane.net> (raw)
In-Reply-To: <e32ff546-810b-4df6-a96e-71b07b753397-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Almost there! pandoc.RawBlock is a function that takes two
arguments (not a table), so you should have () rather than {} after it.
Agustín Martín <agusmba-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
> Hi, I'm new to lua, so forgive me if this is something basic.
>
> I'm trying to create a filter to convert the text "{{pagebreak}}" into a
> docx page break. I know there are existing haskel filters for this, and
> that I could also use a raw block directly in my docx (I've done that
> already) but I wanted to scratch my itch and do it with a lua filter.
>
> So far trying different approaches I have ended up with:
>
> -- file: macro-expander.lua
>
> function pagebreak_to_docx (inlines)
>
> if #inlines ~= 1 then return end
> if inlines[1].t == 'Str' and inlines[1].text == "{{pagebreak}}" then
> return pandoc.RawBlock{"openxml", "<w:p><w:r><w:br w:type=\"page\"
> /></w:r></w:p>"}
> end
> end
>
> function Para (c)
> return pagebreak_to_docx(c.content)
> end
>
> Still when I run it with a basic example, I get the following error:
>
> Could not read list: Could not get Block value: Expected a string but got a
> nil
>
> Right at the exact place where the {{pagebreak}} occurs.
>
> Without the filter:
>
> $ echo -e "Raw Block in md: \n\n\`\`\`{=openxml}\n<w:p>\n\`\`\` \n\nLua
> Filter Test: \n\n{{pagebreak}}" | pandoc -f markdown -t native
> [Para [Str "Raw",Space,Str "Block",Space,Str "in",Space,Str "md:"]
> ,RawBlock (Format "openxml") "<w:p>"
> ,Para [Str "Lua",Space,Str "Filter",Space,Str "Test:"]
> ,Para [Str "{{pagebreak}}"]]
>
> With the filter I'd expect the last Para to turn into a RawBlock but...
>
> $ echo -e "Raw Block in md: \n\n\`\`\`{=openxml}\n<w:p>\n\`\`\` \n\nLua
> Filter Test: \n\n{{pagebreak}}" | pandoc -f markdown -t native
> --lua-filter="./macro-expander.lua"
>
> Error running filter ./src/servicio-gestion-software/macro-expander.lua:
> Could not read list: Could not get Block value: Expected a string but got a
> nil
>
>
> Any help would be appreciated.
> Thanks!
>
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next prev parent reply other threads:[~2018-06-06 22:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-06 17:03 Agustín Martín
[not found] ` <e32ff546-810b-4df6-a96e-71b07b753397-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2018-06-06 22:00 ` John MacFarlane [this message]
[not found] ` <yh480k7enbh8y6.fsf-pgq/RBwaQ+zq8tPRBa0AtqxOck334EZe@public.gmane.org>
2018-06-07 7:06 ` Agustín Martín
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