GnuWin32.Flex 2.5.4a

fast lexical analyzer generator

Flex is a fast lexical analyzer generator. It is a tool for generating programs that perform pattern-matching on text. There are many applications for Flex, including writing compilers in conjunction with GNU Bison. Flex is a free implementation of the well known Lex program. It features a Lex compatibility mode, and also provides several new features such as exclusive start conditions.

Command Line

Download Links For Version 2.5.4a