Macros extend the language so you're writing in a language adapted for your domain. That can be fun and productive! I agree Instaparse is delightful, although

Macros extend the language so you're writing in a language adapted for your domain. That can be fun and productive! I agree Instaparse is delightful, although pretty slow compared to clj-antlr, which just speaks to your point about host interop. :)