[NTG-context] xml in lua advice ?

Hi, Is there a more elegant way to feed an xml tree into a context() command that what I have below? \startluacode function xml.functions.heading(t) context.section("{") lxml.flush(t) context("}") end \stopluacode The subtree in ’t’ could have embedded xml tags that should be processed, so just stripping it clean will not do. (this is not about \section as such, I just needed an example. \startsection would be more modern, but it would not help fix the issue ) Thanks for any help, Taco