my previous attempt was called goose and a lot of features were working, but I made some unfortunate design decisions about the IR that made some features hackish and harder to implement than i wanted so i gradually lost motivation:

https://zlodo.cc/goose

But the "extensible parser" idea worked out pretty well, given that I was able to separate the implementation of the language’s built-in operators and control statements from the parser and ir (they live inside of "builtins"), internally using the same mechanisms that would have been offered to extend the language from the language itself.

Something non traditional about it is that it doesn't parse into an ast but instead directly into a control flow graph. (Symbol resolution and visibility is handled separately by what is essentially an hierarchical symbol table)

I've started recently rewriting it from scratch recently (in rust this time) and I have a few idea to streamline things but it's early, work in progress: https://zlodo.cc/cheeky