Projects / flex.rb


flex.rb is a regexp matching and scanning library for the Ruby language. It is more than 3 times faster than Ruby regexps, and supports matching text arriving in multiple parts (via async, non-blocking I/O). flex.rb embeds the GNU Flex 2.5.4 (fast lexical analyzer generator) as an engine, and all of Flex's functionality is accessible from Ruby scripts.

Operating Systems

Recent releases

  •  30 May 2001 15:08

    Release Notes: Minor documentation fixes were made, and two bugs were corrected in Flex#most.

    •  18 Dec 2000 19:40

      Release Notes: A new Flex.most method which gives the Ruby scripts all the power of Flex-generated C scanners, a comprehensive testsuite, a tutorial with examples, and more thorough documentation.

      •  11 Dec 2000 20:29

        Release Notes: Initial freshmeat announcement.


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