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Win flex-bison is a port Flex & Bison tools to the Windows platform
Win flex-bison is a windows port the Flex (the fast lexical analyser) and Bison (GNU parser generator). win_flex based on Flex version 2.6.3 source code and win_bison based on Bison version 2.7 and they depend on system libraries only.
Git repository: https://github.com/lexxmark/winflexbison
UPDATE1: Bison version 3.x.x available in Files section in win_flex_bison3-latest.zip package.
UPDATE2: Now "winflexbison" available as package in Chocolatey (https://chocolatey.org/packages/winflexbison and https://chocolatey.org/packages/winflexbison3)
UPDATE3: You can use VS custom build rules to simplify working with winflexbison in Visual Studio 2010 and upper (https://sourceforge.net/p/winflexbison/wiki/Visual%20Studio%20custom%20build%20rules/).
This project has moved to https://github.com/jplevyak/dparser
The master on github is the stable. Please pull that for the very latest code.
DParser is a scannerless GLR parser generator based on the Tomita algorithm. It is self-hosted and very easy to use. Grammars are written in a natural style of EBNF and regular expressions and support both speculative and final actions.