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:
..
I would like to extend the tree starting with node with subnodes
I would like to include files with the following input xml-file
In the xmlsetup for 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/