Parse and analyze yak shaving stories

Introduce "actions" keyword

Turn ANTLR4 Grammars into Raku Grammars

.netrc file parser module for Perl 6

EBNF grammar and interpreters.

Grammar to parse FORTRAN source code

A system of functional parsers (combinators, transformers, generators.)

a basic parser of vCard

DateTime grammar and actions.

Parsing getopt and argparser parameter specs.