GNU bison is a free parser generator computer program written for the GNU project, and available for virtually all common operating systems. It is mostly compatible with YACC, and offers several improvements over the earlier program. It is commonly used in conjunction with flex.

Bison converts a grammar description for a LALR context-free grammar into a C or C++ program to parse that grammar.

References

• Bison Website in the GNU project
• Bison in Free Software Foundation's Directory

GNU project software | Parsers | Free compilers and interpreters

GNU bison | GNU bison | GNU bison | Bison (program) | GNU bison | Bison