An LL(1) parser for simple expressions written in Java. It's a recursive descent parser, but it might not exactly fit the exact criteria of an LL(1) parser. The whole project was written from scratch ...

A virtual machine for executing programs written in Hack. - facebook/hhvm ...

This study presents a novel method for finding and evaluating mathematical expressions using Abstract Syntax Trees (AST). The approach is particularly adaptable for both academic and professional ...