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Autumn

Autumn is a Java (8+) parser combinator library written with an unmatched feature set:

Bundles pre-defined parsers and combinators for most common use cases
Write your own parsers with regular Java code
Support for both scannerless parsing and a separate lexing/tokenization step
Support for parsing both text strings and lists of objects
Associativity support for operators
Left-recursion support
Context-sensitive parsing (exclusive !!)
Reasonably fast (5x slower than (the very fast) ANTLR)
Thoroughly documented
Small & clean codebase

Examples:

The latest version of this document is available online at
https://github.com/norswap/autumn4/blob/master/README.md

Installation

If you are using Maven (or another popular JVM build tool), see here.