#define FIRST_BINARY_OP 17
#define OP_INT 1 /* arguments to operator are integer */
#define OP_STRING 2 /* arguments to operator are string */
#define OP_FILE 3 /* argument is a file name */
extern char *const unary_op
[];
extern char *const binary_op
[];
extern char *const andor_op
[];
extern const char op_priority
[];
extern const char op_argflag
[];