Coming soon to a grammar engine near you
Next:
- {...} closures (via calls to Pugs/Parrot/other languages)
- <'...'>, <"...">
- rule parser
- negated subrules <!expr>
- lookahead / lookbehind
- combining rules <+alpha-[aeiou]>
- array named and numbered alias captures
- hash named and numbered alias captures
- more optimizations
- more tests
- other closure/subroutine calls