Parsing Perl 6

(This is an overview -- more details about parsers in Parrot in tomorrow's talk!)

Multi-layer parser:

• Block and statement-level constructs parsed "top-down"

• Expressions and operators parsed "bottom-up"

• Terms and tokens parsed either "top-down" or using specialized Parrot subs

• ... all of the top-down and bottom-up parse components are specified using Perl 6 syntax:
• /languages/perl6/src/grammar_rules.pg
• /languages/perl6/src/grammar_optok.pg