btyacc - 3.0+dfsg-1 main

btyacc is a hacked version of the original Berkeley "byacc". The main
change to byacc is the addition of backtracking code, allowing you to
try both alternatives in case of shift-reduce or reduce-reduce conflicts.
As long as no backtracking takes place, the speed is comparable to bison's
one.
.
Additional features:
- Enhanced support for storing of text position information for tokens.
- Closes the potential *yacc/bison memory leak during error recovery.
- Preprocessor directives like %ifdef, %include.
- C++ friendly.
.
Related packages: bison, byacc, antlr