ECMAScript 5 Parser

I'm an ECMAScript 5 parser. In the textfield below, enter some ECMAScript 5 source code. If text is selected, I will only parse the selected part of the source. Otherwise, I parse the entire input. I output the AST in a simple JsonML format.
Note: I'm a work-in-progress version. I may also still have issues.

Produced AST
Parse as:

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