< tool > (byacc, previously Zeus, then Zoo) Probably the best variant of the Yacc parser generator . Written by Robert Corbett Robert.Corbett@eng.sun.com .
Latest version: 1.9, as of 2000-06-09.
ftp://ftp.cs.berkeley.edu/pub/4bsd/byacc.1.9.tar.Z .
(2000-07-16)