cl-lex
cl-lex is a set of Common Lisp macros for generating lexical analyzers automatically. Registers (including named registers) can be accessed by number or name in token generation code. The cl-ppcre regex library is used for implementing regular expressions. Lexers generated using cl-lex can be used with cl-yacc.

Repository: https://github.com/djr7C4/cl-lex

License: GPL