lark-parser 0.9.0

a modern parsing library

Lark is a modern general-purpose parsing library for Python.

With Lark, you can parse any context-free grammar, efficiently, with very little code.

Main Features:

• Builds a parse-tree (AST) automagically, based on the structure of the grammar

• Earley parser

  • Can parse all context-free grammars

  • Full support for ambiguous grammars

• LALR(1) parser

  • Fast and light, competitive with PLY

  • Can generate a stand-alone parser

• CYK parser, for highly ambiguous grammars

• EBNF grammar

• Unicode fully supported

• Python 2 & 3 compatible

• Automatic line & column tracking

• Standard library of terminals (strings, numbers, names, etc.)

• Import grammars from Nearley.js

• Extensive test suite

• And much more!