Flex is a tool for generating programs that recognize lexical patterns in 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.
| Tags | Software Development |
|---|---|
| Licenses | BSD Revised GPL BSD Original |
Recent releases


Changes: Numerous bug and security fixes were done. A number of new translations from the translation project are included as well.


Changes: The --enable-maintainer-mode configure switch was removed. yylineno is per-buffer in reentrant scanners. A new %top directive was added. m4 is used to generate scanners. Automatic stack management has been added for input buffers. yy namespace cleanups were made, along with other bugfixes and portability fixes.


No changes have been submitted for this release.