Usage: YACC [options] filename Options: -b file_prefix set filename prefix (default "y.") -B create a backtracking parser -d write definitions (.tab.h) -H defines_file write definitions to defines_file -i write interface (y.tab.i) -g write a graphical description -l suppress #line directives -L enable position processing, e.g., "%locations" -o output_file (default ".tab.c") -p symbol_prefix set symbol prefix (default "yy") -P create a reentrant parser, e.g., "%pure-parser" -r produce separate code and table files (y.code.c) -s suppress #define's for quoted names in %token lines -t add debugging support -v write description (y.output) -V show version information and exit