172 #define	MORE()	(p->end - p->next > 0)  macro
174 #define	SEE(c)	(MORE() && PEEK() == (c))
187 #define	MUSTSEE(c, e)	(REQUIRE(MORE() && PEEK() == (c), e))
188 #define	MUSTEAT(c, e)	(REQUIRE(MORE() && GETNEXT() == (c), e))
189 #define	MUSTNOTSEE(c, e)	(REQUIRE(!MORE() || PEEK() != (c), e))
403 	assert(MORE());		/* caller should have ensured this */  in p_ere_exp()
412 		(void)REQUIRE(MORE(), REG_EPAREN);  in p_ere_exp()
471 		(void)REQUIRE(MORE(), REG_EESCAPE);  in p_ere_exp()
543 	    (void)REQUIRE(!MORE() || !isdigit((uch)PEEK()), REG_BADRPT);  in p_ere_exp()
555 	if (!MORE())  in p_ere_exp()
608 			while (MORE() && PEEK() != '}')  in p_ere_exp()
610 			(void)REQUIRE(MORE(), REG_EBRACE);  in p_ere_exp()
616 	if (!MORE())  in p_ere_exp()
633 	(void)REQUIRE(MORE(), REG_EMPTY);  in p_str()
634 	while (MORE())  in p_str()
719 	else if ((ate > 1 || (bc->outer && !MORE())) && !p_branch_empty(p, bc))  in p_branch_do()
789 		while (MORE() && (!p->allowbranch || !SEESPEC('|')) && !SEEEND()) {  in p_re()
815 	assert(!MORE() || SEE(end1));  in p_re()
839 	assert(MORE());		/* caller should have ensured this */  in p_simp_re()
842 		(void)REQUIRE(MORE(), REG_EESCAPE);  in p_simp_re()
900 			if (MORE() && !SEETWO('\\', ')'))  in p_simp_re()
976 			if (MORE() && isdigit((uch)PEEK())) {  in p_simp_re()
985 			while (MORE() && !SEETWO('\\', '}'))  in p_simp_re()
987 			(void)REQUIRE(MORE(), REG_EBRACE);  in p_simp_re()
1006 	while (MORE() && isdigit((uch)PEEK()) && count <= DUPMAX) {  in p_count()
1050 	while (MORE() && PEEK() != ']' && !SEETWO('-', ']'))  in p_bracket()
1101 	switch ((MORE()) ? PEEK() : '\0') {
1116 		(void)REQUIRE(MORE(), REG_EBRACK);
1120 		(void)REQUIRE(MORE(), REG_EBRACK);
1125 		(void)REQUIRE(MORE(), REG_EBRACK);
1129 		(void)REQUIRE(MORE(), REG_EBRACK);
1212 	while (MORE() && isalpha((uch)PEEK()))
1263 	(void)REQUIRE(MORE(), REG_EBRACK);
1287 	while (MORE() && !SEETWO(endc, ']'))
1289 	if (!MORE()) {