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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...
The LALR parser generator (LPG) is a tool for developing scanners and parsers written in Java, C++ or C. Input is specified by BNF rules. LPG supports backtracking (to resolve ambiguity), automatic AST generation and grammar inheritance.