Martin Fowler on DSLs, including internal and external DSLs: https://martinfowler.com/books/dsl.html https://martinfowler.com/books/dsl.html https://martinfow

Martin Fowler on DSLs, including internal and external DSLs: https://martinfowler.com/books/dsl.html https://martinfowler.com/books/dsl.html https://martinfowler.com/dsl.html https://martinfowler.com/dsl.html Also see: https://en.m.wikipedia.org/wiki/Domain-specific_language https://en.m.wikipedia.org/wiki/Domain-specific_language including the References section.