On Wed, 29 Apr 2009 17:55:05 +0200 luigi scarso <luigi.sca...@gmail.com> scribit:
> > > > > > 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 . (chap.24-26 of the Texbook are embryos of a grammar, but they are not usable like the grammar of Pascal or Python) > I suspect that TeX is not a cfl . > > Anyway, > lpeg can make the thing easier > > -- > luigi I think that something user-friendly could be do in a cooperative wiki (in the between, i found http://texshow.contextgarden.net/) beginning with CONTEXT_SOURCE ::= PREAMBLE "\starttext" TEXT "\stoptext" | CONTEXT_SOURCE TEXT ::= STARTSTOPS | SETUPS | DEFINES | OTHERS [ TEXT and so on. ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________
