Bison News ---------- Changes in version 1.23: The user can define YYPARSE_PARAM as the name of an argument to be passed into yyparse. The argument should have type void *. It should actually point to an object. Grammar actions can access the variable by casting it to the proper pointer type. Error in printing reductions fixed. Line numbers in output file corrected. Configuration and compilation problems fixed. Changes in version 1.22: --help option added. Configuration and compilation problems fixed. Changes in version 1.21: Configuration and compilation problems fixed. Changes in version 1.20: Output file does not redefine const for C++. Configuration and compilation problems fixed.