esprima-harmony-jscs

Esprima (esprima.org, BSD license) is a high performance,
standard-compliant ECMAScript
parser written in ECMAScript (also popularly known as
JavaScript).
Esprima is created and maintained by Ariya Hidayat,
with the help of many contributors.

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- Full support for ECMAScript 5.1 (ECMA-262)
- Sensible syntax tree format compatible with Mozilla
Parser AST
- Optional tracking of syntax node location (index-based and line-column)
- Heavily tested (> 650 unit tests with full code coverage)
- Experimental support for ES6/Harmony (module, class, destructuring, ...)

Esprima serves as a building block for some JavaScript
language tools, from code instrumentation
to editor autocompletion.

Esprima runs on many popular web browsers, as well as other ECMAScript platforms such as
Rhino and Node.js.

For more information, check the web site esprima.org.