I have some difficulties understanding the intake of ConTeXt-code in an XML 
processing environment.
The setup is as follows.

\startbuffer[buffername]
\startuseMPgraphic{graphicname}{}
..
\stopuseMPgraphic
\stopbuffer

Processing inside xmlsetup:

\startxmlsetups xmlcommon:mpgraphic
  Here I want to read the buffer and then call it up with
  \useMPgraphic{graphicname}{}
\stopxmlsetups

This works if I pack the graphic definition in the buffer inside a <tex></tex> 
node and call
  \xmlprocessbuffer{tex}{\xmlatt{#1}{buffer}}{}
where <tex> is a ConTeXt processing setup.

This actuallty works, but has the drawback of putting the ConTeXt code inside 
<tex></tex> thereby makeing it difficult to reuse the definition of the graphic 
in a non XML-context. I thus want to get rid of the <tex></tex> enclosure.

I tried things like
  \xmlloadbuffer{tex}{\xmlatt{#1}{buffer}}
  \xmlsetup{tex}{xmlcommon:tex}    <== the tex processing xmlsetups
But this does not work. Because the graphic in this case is not found by 
\useMPgraphic.
Clearly I am misunderstanding some of the intricacies of the xmlloading macros 
and probably the solution is quite simple. But I cannot find the right way to 
do it.
Any help would be appreciated.

Hans van der Meer



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