bison++ - 1.21.11-5+b1 main

Based on bison version 1.19. Compatible with bison but with C++ support.
Bison is a general-purpose parser generator that converts a grammar
description for an LALR (BNF-like) context free grammar into a C/C++ program
to parse that grammar. Once you are proficient with bison++ you can generate
a wide range of language parsers, from those used in simple desk calculators
to complex programming languages.