[NTG-context] handling HTML notes in ConTeXt

Hans Hagen pragma at wxs.nl
Sun Dec 28 18:53:23 CET 2014


On 12/28/2014 12:55 PM, Pablo Rodriguez wrote:
> Dear list,
>
> I would like to be able to parse HTML output from pandoc with ConTeXt
> XML parser (or whichever the right name is).
>
> The only issue I cannot solve are footnotes. From markdown:
>
>      Text^[A footnote.]
>
> pandoc parses into HTML as:
>
>      <p>Text<a href="#fn1" class="footnoteRef"
>      id="fnref1"><sup>1</sup></a></p>
>      <div class="footnotes">
>      <hr />
>      <ol>
>      <li id="fn1"><p>A footnote.<a href="#fnref1">↩</a></p></li>
>      </ol>
>      </div>
>
> Is there a way that the environment file can make a footnote of this?
>
> Sorry for the question, but I’m totally lost at this.

\startbuffer[demo]
<doc>
     <p>Text
         <a href="#fn1" class="footnoteRef" id="fnref1"><sup>1</sup></a> and
         <a href="#fn2" class="footnoteRef" id="fnref2"><sup>2</sup></a>
     </p>
     <div class="footnotes">
         <hr />
         <ol>
             <li id="fn1"><p>A footnote.<a href="#fnref1">↩</a></p></li>
             <li id="fn2"><p>A second footnote.<a 
href="#fnref2">↩</a></p></li>
         </ol>
     </div>
</doc>
\stopbuffer

\starttext

% variant 1:

\startxmlsetups xml:initialize
     \xmlsetsetup{#1}{p|doc}{xml:*}
     \xmlsetsetup{#1}{a[@class='footnoteRef']}{xml:footnote}
     \xmlsetsetup{#1}{div[@class='footnotes']}{xml:nothing}
\stopxmlsetups

\xmlregistersetup{xml:initialize}

\startxmlsetups xml:doc
     variant 1:
     \blank
     \xmlflush{#1}
     \blank
\stopxmlsetups

\startxmlsetups xml:p
     \xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:footnote
 
(1)\footnote{\xmlfirst{main}{div[@class='footnotes']/ol/li[@id=string.sub('\xmlatt{#1}{href}',2)]}}
\stopxmlsetups

\startxmlsetups xml:initialize
     \xmlsetsetup{#1}{p|doc}{xml:*}
     \xmlsetsetup{#1}{a[@class='footnoteRef']}{xml:footnote}
     \xmlfilter{#1}{div[@class='footnotes']/ol/li/command(xml:collectnotes)}
     \xmlsetsetup{#1}{div[@class='footnotes']}{}
\stopxmlsetups

\xmlregistersetup{xml:initialize}

\xmlprocessbuffer{main}{demo}{}

% variant 2:

\startxmlsetups xml:doc
     variant 2:
     \blank
     \xmlflush{#1}
     \blank
\stopxmlsetups

\startxmlsetups xml:p
     \xmlflush{#1}
\stopxmlsetups

\startluacode
     userdata.notes =  {}
\stopluacode

\startxmlsetups xml:collectnotes
     \ctxlua{userdata.notes['\letterhash\xmlatt{#1}{id}'] = '#1'}
\stopxmlsetups

\startxmlsetups xml:footnote
 
(2)\footnote{\xmlflush{\cldcontext{userdata.notes['\xmlatt{#1}{href}']}}}
\stopxmlsetups

\xmlprocessbuffer{main}{demo}{}

\stoptext


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