Oniguruma++ (鬼車++) regular expression engine

My custom assembler that produces custom created (by hand) ELF file

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.

R interface to Google re2 (C++) regular expression engine

This is the "one": Linuxy infrastructureish mostly C++ code.

An esoteric programming language based on Turing Machines

A Regex📋 implementation in C++ using Thompson's NFA algorithm

The original timed regular expression matcher over temporal behaviors

Regex Engine using SIMD and Roaring-Bitmaps

Regular expression. Scaner. Parser. Compiler. Engineering a Compiler, 2nd Edition - K. Cooper, L. Torczon (2012)

A Zero to One Regular expression engine which supports almost all feature except Capturing Groups, Negated Character Classes and something else.

search with regex in file line per line and replace it

Simple regex engine implementation.

DFA Regex Implement

A regex engine based on formal automata parsing techniques.

High-performance regular expression matching library

A regular expression engine implemented with virtual machine approach. Python wrapper provided.

High Performance Incremental Parser Engine

Lex is a Regex Engine for lexical analyzer