\xmlfirst broken?

\xmlfirst broken?

[Henri Menke]

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Dear list,

A recent question on TeX.SX is asking about XML processing.
https://tex.stackexchange.com/questions/380935

To reproduce the error from the question I copied the demo from the XML manual.  First of all we
have demo.xml:


<?xml version='1.0' standalone='yes'?>
<document>
  <section>
    <title>Some title</title>
    <content>
      <p>a paragraph of text</p>
      <p>another paragraph of text</p>
    </content>
  </section>
</document>


And then we have a ConTeXt document:


\startxmlsetups xml:demo:base
  \xmlsetsetup{#1}{*}{-}
  \xmlsetsetup{#1}{document|section|p}{xml:demo:*}
\stopxmlsetups

\xmlregisterdocumentsetup{demo}{xml:demo:base}

\startxmlsetups xml:demo:document
  \starttitle[title={Contents}]
    \placelist[chapter]
  \stoptitle
  \xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:demo:section
  \startchapter[title=\xmlfirst{#1}{/title}]
    \xmlfirst{#1}{/content}
  \stopchapter
\stopxmlsetups

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

\starttext
\xmlprocessfile{demo}{demo.xml}{}
\stoptext


This works partially.  Some entities are printed fine but stuff in \xmlfirst is missing.  I can
reproduce this in TL2017 and latest beta.  In the attached PDF you can see that the section has no
title and no content (exactly the stuff \xmlfirst was supposed to get).

Cheers, Henri

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Re: \xmlfirst broken?

[Hans Hagen]

On 7/17/2017 3:40 AM, Henri Menke wrote:
> Dear list,
> 
> A recent question on TeX.SX is asking about XML processing.
> https://tex.stackexchange.com/questions/380935
> 
> To reproduce the error from the question I copied the demo from the XML manual.  First of all we
> have demo.xml:
> 
> 
> <?xml version='1.0' standalone='yes'?>
> <document>
>    <section>
>      <title>Some title</title>
>      <content>
>        <p>a paragraph of text</p>
>        <p>another paragraph of text</p>
>      </content>
>    </section>
> </document>
> 
> 
> And then we have a ConTeXt document:
> 
> 
> \startxmlsetups xml:demo:base
>    \xmlsetsetup{#1}{*}{-}
>    \xmlsetsetup{#1}{document|section|p}{xml:demo:*}
> \stopxmlsetups
> 
> \xmlregisterdocumentsetup{demo}{xml:demo:base}
> 
> \startxmlsetups xml:demo:document
>    \starttitle[title={Contents}]
>      \placelist[chapter]
>    \stoptitle
>    \xmlflush{#1}
> \stopxmlsetups
> 
> \startxmlsetups xml:demo:section
>    \startchapter[title=\xmlfirst{#1}{/title}]
>      \xmlfirst{#1}{/content}
>    \stopchapter
> \stopxmlsetups
> 
> \startxmlsetups xml:demo:p
>    \xmlflush{#1}\endgraf
> \stopxmlsetups
> 
> \starttext
> \xmlprocessfile{demo}{demo.xml}{}
> \stoptext
> 
> 
> This works partially.  Some entities are printed fine but stuff in \xmlfirst is missing.  I can
> reproduce this in TL2017 and latest beta.  In the attached PDF you can see that the section has no
> title and no content (exactly the stuff \xmlfirst was supposed to get).
just comment the line:

    \xmlsetsetup{#1}{*}{-}

or provide setups for content and title too

Hans


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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________