Parse BNF grammar definitions

Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.

misc parsers in rust

A fast, efficient natural language processing engine for Icelandic.

A Parsing-as-Deduction system that parses with different parsing algorithms and some related tools for educational purposes.

A visualization of SPPFs generated during Earley parsing

The greynir.is Icelandic natural language processing API and website.

Extended Date Time Format (ISO 8601-2 / EDTF) Parser for JavaScript

a simple earley parser

Functional Meaning Representation and Semantic Parsing Framework

Structured Editing of Stream Data

A parser for nondeterministic context free languages

Design and implementation of a fast Earley parser with some test cases in Wolfram language ....... also a ready-made lexer with parsing with the grammar for all the regular languages :) :) ....

Probabilistic Context Free Grammar (PCFG) Library for C#

A syntactic parser uses CYK (CKY), Earley. Best fit for English, Vietnamese.

Earley parser in Go.