...Supports fast scanning of UTF-8/16/32 files, strings, and streams. The reflex scanner generator generates clean C++ lexer class code that is thread-safe. Generates Graphviz files to visualize state machine DFAs. RE/flex works seamlessly with Bison.
Language: C++
License: BSD-3
Documentation: https://www.genivia.com/doc/reflex/html/index.html
Repository: https://github.com/Genivia/RE-flex
Changelog: see SF-README.md