1 1.1 christos /* $NetBSD: err_syntax19.y,v 1.1.1.1 2015/01/03 22:58:23 christos Exp $ */ 2 1.1 christos 3 1.1 christos %{ 4 1.1 christos int yylex(void); 5 1.1 christos static void yyerror(const char *); 6 1.1 christos %} 7 1.1 christos 8 1.1 christos %% 9 1.1 christos 10 1.1 christos expr : '(' expr ')' 11 1.1 christos { $$ = $<oops>; } 12 1.1 christos ; 13 1.1 christos 14 1.1 christos %% 15 1.1 christos 16 1.1 christos #include <stdio.h> 17 1.1 christos 18 1.1 christos int 19 1.1 christos main(void) 20 1.1 christos { 21 1.1 christos printf("yyparse() = %d\n", yyparse()); 22 1.1 christos return 0; 23 1.1 christos } 24 1.1 christos 25 1.1 christos int 26 1.1 christos yylex(void) 27 1.1 christos { 28 1.1 christos return -1; 29 1.1 christos } 30 1.1 christos 31 1.1 christos static void 32 1.1 christos yyerror(const char* s) 33 1.1 christos { 34 1.1 christos printf("%s\n", s); 35 1.1 christos } 36