lexer

The Fast Lexical Analyzer - scanner generator for lexing in C and C++

A parser library for Go

Create ridiculously fast Lexers

Mago is a toolchain for PHP that aims to provide a set of tools to help developers write better code.

Parser Building Toolkit for JavaScript

Interactive ASCII art diagram generators. :star2:

A tool set for CSS including fast detailed parser, walker, generator and lexer based on W3C specs and browser implementations

Verible is a suite of SystemVerilog developer tools, including a parser, style-linter, formatter and language server

C++ Mathematical Expression Parsing And Evaluation Library https://www.partow.net/programming/exprtk/index.html

DFA regular expression library & friends

Optimised tokenizer/lexer generator! 🐄 Uses /y for performance. Moo.

GraphQL Router / API Gateway framework written in Golang, focussing on correctness, extensibility, and high-performance. Supports Federation v1 & v2, Subscriptions & more.

Grammar files support & parser/PSI generation for IntelliJ IDEA

The fast scanner generator for Java™ with full Unicode support

Yet another high-performance C++ regex library and lexical analyzer generator like Flex: extends Flex++ with Unicode support, indent/dedent anchors, lazy quantifiers, functions for lex and syntax error reporting and more. Seamlessly integrates with Bison and other parsers.

A tiny compiler for a language featuring LL(2) grammar. With Lexer, Parser, ASM-like codegen and VM. Complex enough to give you a flavour of how the "real" thing works whilst not being a mere toy example

Rust grammar tool libraries and binaries

:herb: NodeJS PHP Parser - extract AST or tokens

Small configuration file parser library for C.

Go parsers for web formats