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Comment by Cieplak | Hacker News Reader

Gotta love Parsec for Haskell and pyparsing for Python. Some other awesome parsing libs:

PEGTL - C++ Parsing Expression Grammar Template Library https://github.com/taocpp/PEGTL

Parboiled - Java & Scala PEG Library https://github.com/sirthias/parboiled

Nom - Rust parser combinator framework https://github.com/Geal/nom

Nearley - JavaScript parser toolkit https://github.com/Hardmath123/nearley

Neotoma - Erlang library and packrat parser-generator for PEGs https://github.com/seancribbs/neotoma

I've used Nom to parse a couple RFC-based protocols now, and I'm amazed at how easy and performant the result ends up being.

There's a great walk-through of using it here, including fuzzing your parsers to make sure they're solid. https://github.com/Geal/langsec-2017-hackathon-code

Geal is very helpful too, he pops up around the place in the Rust community and is responsive on the nom Gitter channel.

Instaparse - Clojure/Clojurescript https://github.com/Engelberg/instaparse

Nearly is pretty slow.

check out Chevrotain

http://sap.github.io/chevrotain/performance/

angstrom - OCaml parser combinators built for speed and memory efficiency https://github.com/inhabitedtype/angstrom

Add fparsec for F#/.Net http://www.quanttec.com/fparsec/

I used that 2 times and found it pretty easy to use, once I had grasped all the operators (like .>>, .>>., <|>, etc.)

Pegged - PEG generator implemented in the D programming language https://github.com/PhilippeSigaud/Pegged , works in run-time or compile-time

I haven't tried pyparsing, but I enjoyed implementing a simple DSL with funcparserlib having no previous experience with parser combinators: https://github.com/vlasovskikh/funcparserlib

The library has a well-written tutorial that doesn't require previous knowledge about parser combinators.

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