Salvete,
I just started to think about using ConTeXt on XML input files, so I've got a question which should be easy to answer: My MathML source generates presentation code which includes <mo></mo> between a function symbol and its arguments. I get a black rectangle for that; I'd like ConTeXt to ignore this character, where do I define it as “nothing”?
This is the hex unicode reference for the entity which is already defined in xtag-mml.tex as nothing ({}) via its expansion into . So the problem seems to be in arriving at from . I'm not sure how to do that, but in the meantime you can define explicitly using: \defineXMLentity [x02061] {} I think there is a mapping mechanism though, since a lot of Unicode is supported natively; perhaps the vector to which belongs hasn't been completed yet. Duncan