Re: [NTG-context] What happened with sectionworld?

May be that ConTeXt is not a 'context free language' ;-) than it will be difficult to express something in a BNF grammar http://en.wikipedia.org/wiki/Backus-Naur_form.

hmm. Context is a macro package in TeX language which is Turing Complete.

But if (ConTeXt == formal_language), it should be possible to develop TEXT, NUMBER, DIMENSION, REFERENCE, etc and also to add examples for "[optional user data]".

hmm I'm not sure that ConTeXt == TeX (but it seems YES) , I'm nor sure that TeX is a context free language too, in the sense that I never see a BNF grammar of TeX . I suspect that TeX is not a cfl . Anyway, lpeg can make the thing easier -- luigi