(Flex) A reimplementation of the Lex {scanner generator}, by Vern Paxson . Flex++ produces C++ and aFlex produces Ada. FTP Flex-2.3.8.tar.Z from a GNU archive site or . ["The Flex Scanner Generator", Vern Paxson , Systems Engineering, LBL, CA]. [Start? Current version?] (2003-12-16)