Harry's example depends on eager (shortest match) recognition.  IIRC Perl
regex named properties won't get him there.

On Sat, Oct 15, 2016 at 9:06 PM, Paul Bennett <paul.w.benn...@gmail.com>
wrote:

> On Oct 15, 2016 13:01, "Jeffrey Kegler" <jeffreykeg...@jeffreykegler.com>
> wrote:
> >
> > Re #4, why not implement Perl regexes?  A full syntax of Perl regexes is
> gruesomely complex, and much of it is symptoms rather than features.
>
> Somewhere deep within perldoc there's a howto on making your own \p{}
> named properties, which AFAICT are acceptable to Marpa's regex engine.
> IIRC, I once had some progress that way.
>
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