#Python/PLY JS parser

A fully-functional JS parser, written in Python and PLY (a LALR compiler-compiler for Python).
It even parses difficult regexpr cases (something that is much more difficult than the ECMAScript spec implies, as to properly implement it in a regexpr lexical scanner requires manual unrolling of a conditional grammar loop).

This is based off of an in-house ES6->ES5 compiler, which you can also find on my github repository.

##Requirements

• Python3.x
• PyPLY: http://www.dabeaz.com/ply/

##Basic Usage You can validate JS source files with:

js_cc.py [path-to-file]

Since this is a reference implementation, the parser doesn't actually do anything other than parse JS files into AST trees (see js_ast.py for the AST node types).