Hi, yacc_EOF is mentioned in parse.y in something like this
%left '&' ';' '\n' yacc_EOF | error yacc_EOF But I don't find where it is defined similarly to other tokens like BAR_AND. %token GREATER_BAR BAR_AND Where is yacc_EOF defined? (y.tab.c and y.tab.h are files generated by bison. so yacc_EOF must be defined before bison is called?) -- Regards, Peng