Skip to main content

a modern parsing library

Project description

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!

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

lark-parser-0.10.1.tar.gz (216.6 kB view details)

Uploaded Source

File details

Details for the file lark-parser-0.10.1.tar.gz.

File metadata

  • Download URL: lark-parser-0.10.1.tar.gz
  • Upload date:
  • Size: 216.6 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: Python-urllib/3.8

File hashes

Hashes for lark-parser-0.10.1.tar.gz
Algorithm Hash digest
SHA256 42f367612a1bbc4cf9d8c8eb1b209d8a9b397d55af75620c9e6f53e502235996
MD5 6565bd22ff0fdbcdf5bd811beb624963
BLAKE2b-256 0da560580c84bbc28f3952aec8f718e7311eb679a825f9c1d424d98a5542d7c0

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page