nvi/regex/regcomp.c

143 #define	MORE()	(p->next < p->end)
145 #define	SEE(c)	(MORE() && PEEK() == (c))
146 #define	SEETWO(a, b)	(MORE() && MORE2() && PEEK() == (a) && PEEK2() == (b))
155 #define	MUSTSEE(c, e)	(REQUIRE(MORE() && PEEK() == (c), e))
156 #define	MUSTEAT(c, e)	(REQUIRE(MORE() && GETNEXT() == (c), e))
157 #define	MUSTNOTSEE(c, e)	(REQUIRE(!MORE() || PEEK() != (c), e))
320 		while (MORE() && (c = PEEK()) != '|' && c != stop)
345 	assert(!MORE() || SEE(stop));
362 	assert(MORE());		/* caller should have ensured this */
368 		(void)REQUIRE(MORE(), REG_EPAREN);
424 		(void)REQUIRE(MORE(), REG_EESCAPE);
429 		(void)REQUIRE(!MORE() || !ISDIGIT((UCHAR_T)PEEK()), REG_BADRPT);
436 	if (!MORE())
479 			while (MORE() && PEEK() != '}')
481 			(void)REQUIRE(MORE(), REG_EBRACE);
487 	if (!MORE())
503 	(void)REQUIRE(MORE(), REG_EMPTY);
504 	while (MORE())
542 	while (MORE() && !SEETWO(end1, end2)) {
575 	assert(MORE());		/* caller should have ensured this */
579 		(void)REQUIRE(MORE(), REG_EESCAPE);
591 			/* the MORE here is an error heuristic */
592 			if (MORE() && !SEETWO('\\', ')'))
661 			if (MORE() && ISDIGIT((UCHAR_T)PEEK())) {
670 			while (MORE() && !SEETWO('\\', '}'))
672 			(void)REQUIRE(MORE(), REG_EBRACE);
691 	while (MORE() && ISDIGIT((UCHAR_T)PEEK()) && count <= DUPMAX) {
737 	while (MORE() && PEEK() != ']' && !SEETWO('-', ']'))
794 	switch ((MORE()) ? PEEK() : '\0') {
810 		(void)REQUIRE(MORE(), REG_EBRACK);
814 		(void)REQUIRE(MORE(), REG_EBRACK);
819 		(void)REQUIRE(MORE(), REG_EBRACK);
823 		(void)REQUIRE(MORE(), REG_EBRACK);
859 	while (MORE() && isalpha(PEEK()))
902 	(void)REQUIRE(MORE(), REG_EBRACK);
925 	while (MORE() && !SEETWO(endc, ']'))
927 	if (!MORE()) {