Instaparse is a simple yet powerful parser generator for Clojure and ClojureScript that turns grammars written in EBNF or ABNF into executable parsers, with support for left recursion, ambiguous grammars, PEG-like lookahead, and various output formats.

Features

  • Grammar definitions in familiar EBNF or ABNF syntax
  • Handles left- and right-recursive and ambiguous grammars
  • Support for lookahead and negative lookahead (PEG-like extensions)
  • Multiple output formats including hiccup and enlive parse trees
  • Detailed error reporting and optional lazy parse results
  • "Total parsing" mode and combinator-based grammar building

Project Samples

Project Activity

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License

Eclipse Public License

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Registered

3 days ago