monkey-rust

This is lexer for the Monkey programming language written in Rust

What’s Monkey?

Monkey has a C-like syntax, supports variable bindings, prefix and infix operators, has first-class and higher-order functions, can handle closures with ease and has integers, booleans, arrays and hashes built-in.

Official site is: https://monkeylang.org/. It's has various implementation languages :).

There is a book about learning how to make an interpreter: Writing An Interpreter In Go. This is where the Monkey programming language come from.