If the language has a large enough community, someone's bound to come up with an AST format and parser/generator themselves. JavaScript has https://github.com/

If the language has a large enough community, someone's bound to come up with an AST format and parser/generator themselves. JavaScript has https://github.com/estree/estree https://github.com/estree/estree for example. I've written a (very experimental) S-expression syntax for JavaScript around it here https://github.com/anko/eslisp https://github.com/anko/eslisp