[relaxng-user] Imlementing regular expression

[David Tolpin]

> > I am not sure it is important, or even usable,
> > because Posix regexps are not Unicode-aware,
> > and because implementing full XML Schema regular expressions
> > took just one evening (and under one thousand lines in C).
> 
> Hmm.  DFA or NFA?  One advantage of not allowing extensions to regularity
> is that the compactness and speed of a DFA becomes available.

Lazy building of NFA. Derivative(delta)-based, similar to that
of Jing for RelaxNG.