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Asked: 2026-06-09T22:06:38+00:00

I want to make a python program that uses PLY to parse Javascript files,

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I want to make a python program that uses PLY to parse Javascript files, I din’t found any sources of parsers that implement the ECMAScript, Javascript rules that use PLY.

The only thing I found was some ANTLR grammar files to parse javascript and ecmascript:
http://www.antlr.org/grammar/1153976512034/ecmascriptA3.g
http://www.antlr.org/grammar/1206736738015/JavaScript.g

Can ANTLR grammar files be adapted to be used as PLY rules, if yes, how can be done in a semi-automatic way, do I need to parse the grammar files? Is there another workaround this (i.e. than using ANTLR grammar files)?

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1 Answer

  1. Editorial Team

    Can ANTLR grammar files be adapted to be used as PLY rules, […] ?

    No, they can’t. PLY generates LALR parsers while ANTLR generates LL ones. Their input grammars are too different for a trivial (or automated) conversion.

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