191 #define	REQUIRE(co, e)	((co) || SETERROR(e))  macro
192 #define	MUSTSEE(c, e)	(REQUIRE(MORE() && PEEK() == (c), e))
193 #define	MUSTEAT(c, e)	(REQUIRE(MORE() && GETNEXT() == (c), e))
194 #define	MUSTNOTSEE(c, e)	(REQUIRE(!MORE() || PEEK() != (c), e))
417 		(void)REQUIRE(MORE(), REG_EPAREN);  in p_ere_exp()
474 		(void)REQUIRE(MORE(), REG_EESCAPE);  in p_ere_exp()
560 		(void)REQUIRE(MORE2() && \  in p_ere_exp()
564 	(void)REQUIRE(!wascaret, REG_BADRPT);  in p_ere_exp()
591 				(void)REQUIRE(count <= count2, REG_BADBR);  in p_ere_exp()
600 			(void)REQUIRE(MORE(), REG_EBRACE);  in p_ere_exp()
623 	(void)REQUIRE(MORE(), REG_EMPTY);  in p_str()
785 		(void) REQUIRE(p->gnuext || HERE() != bc.start, REG_EMPTY);  in p_re()
832 		(void)REQUIRE(MORE(), REG_EESCAPE);  in p_simp_re()
897 			(void)REQUIRE(EATTWO('\\', ')'), REG_EPAREN);  in p_simp_re()
931 			(void)REQUIRE(bc->nchain == 0, REG_BADRPT);  in p_simp_re()
965 				(void)REQUIRE(count <= count2, REG_BADBR);  in p_simp_re()
974 			(void)REQUIRE(MORE(), REG_EBRACE);  in p_simp_re()
998 	(void)REQUIRE(ndigits > 0 && count <= DUPMAX, REG_BADBR);  in p_count()
1103 		(void)REQUIRE(MORE(), REG_EBRACK);
1105 		(void)REQUIRE(c != '-' && c != ']', REG_ECTYPE);
1107 		(void)REQUIRE(MORE(), REG_EBRACK);
1108 		(void)REQUIRE(EATTWO(':', ']'), REG_ECTYPE);
1112 		(void)REQUIRE(MORE(), REG_EBRACK);
1114 		(void)REQUIRE(c != '-' && c != ']', REG_ECOLLATE);
1116 		(void)REQUIRE(MORE(), REG_EBRACK);
1117 		(void)REQUIRE(EATTWO('=', ']'), REG_ECOLLATE);
1138 				(void)REQUIRE(start <= finish, REG_ERANGE);
1141 				(void)REQUIRE(p_range_cmp(start, finish) <= 0, REG_ERANGE);
1250 	(void)REQUIRE(MORE(), REG_EBRACK);
1256 	(void)REQUIRE(EATTWO('.', ']'), REG_ECOLLATE);