xml file inclusion

xml file inclusion

[Hans van der Meer]

I would like to include files with the following input xml-file

  <root>
    <file location=".." other_attributes</file>
  </root>

In the xmlsetup for <file> I thought to place a call to \xmlinclude:

\startxmlsetups xml:file
  \xmlinclude{#1}{.}{location}
\stopxmlsetups

But this does not work and I get the following error message:

! LuaTeX error ...-new/tex/texmf-context/tex/context/base/lxml-aux.lua:368: attempt to index field '__p__' (a nil value)
stack traceback:
	...-new/tex/texmf-context/tex/context/base/lxml-aux.lua:368: in function 'include'
	...-new/tex/texmf-context/tex/context/base/lxml-aux.lua:393: in function 'include'
	...-new/tex/texmf-context/tex/context/base/lxml-tex.lua:430: in function 'include'
	<main ctx instance>:1: in main chunk.

What am I doing wrong? This is how I interprete the manual text "includes the file specified by attribute of the element located by lpath at node node.

Hans van der Meer



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Re: xml file inclusion

[Hans van der Meer]

After a lot of experimenting I finally succeeded including a file with thw \xmlinclude macro. The next hurdle is how to extend the xml tree with its xml contents (if that is possibl, of course).

Thus the main file being:
  <?xml version="1.0" encoding="UTF-8"?>
  <main> .. </main>
I would like to extend the tree starting with node <main> with subnodes coming from included xml-files:
  <?xml version="1.0" encoding="UTF-8"?>
  <subtree>..</subtree>
Then execute \xmlall on the subtree's.

Of course another route (I have already explored) is to call \xmlprocessfile for the subtree's. But then I found I cannot retrieve other elements from <main> while processing the independent subtree. And that is just what I aimed for.

I would appreciate your help.
Hans van der Meer

On 4 jan. 2012, at 14:23, Hans van der Meer wrote:

> I would like to include files with the following input xml-file
> 
>  <root>
>    <file location=".." other_attributes</file>
>  </root>
> 
> In the xmlsetup for <file> I thought to place a call to \xmlinclude:
> 
> \startxmlsetups xml:file
>  \xmlinclude{#1}{.}{location}
> \stopxmlsetups
> 

___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________