Parsinator.js – a JavaScript parser combinator library with state

Yet another parser combinator library with a couple unique features:

* State, which helps for contextful languages of any reasonable amount of complexity (like ones that have LR conflicts or whitespace delimiting).

* Supports parameterized parsers and recursive parsers.

* Powerful debug recording and displaying. This can be enormously helpful figuring out why your parser isn't working as you expect.