Grammars for jobs entities: titles, skills, acronyms, keywords, etc.

Grammars for Machine Learning entities: classifier names, classifier measures, etc.

Grammar and role for metadata entities: data types, column names, schema names, etc.

DSL-to-DSL translation with multiple DSLs.

EBNF grammar and interpreters.

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

Classic Line-Numbered BASIC interpreter for Raku

Text::SubParsers is for extracting and processing of interpret-able sub-strings in texts

DateTime grammar and actions.

Grammar and role for metadata entities: data types, column names, schema names, etc.