PGE/Perl 6 rules status

Available now:

• Support for basic expressions
• Constant quantifiers
• :, ::, :::
• \w, \W, \d, \D, \n, \N, \b, \B, \s, \S
• <[...]>, <-[...]>
• <?ws>
• subrules (capturing and non-capturing)
• subpatterns (capturing and non-capturing)
• scalar named and numbered alias captures
• grammars
• builtins: <alpha>, <ident>, <digit>, <upper>, <lower>, <sp>, <ident>