665 static int utf8ncursor(struct utf8cursor *u8c, const struct utf8data *data,  in utf8ncursor()  argument
672 	u8c->data = data;  in utf8ncursor()
673 	u8c->s = s;  in utf8ncursor()
674 	u8c->p = NULL;  in utf8ncursor()
675 	u8c->ss = NULL;  in utf8ncursor()
676 	u8c->sp = NULL;  in utf8ncursor()
677 	u8c->len = len;  in utf8ncursor()
678 	u8c->slen = 0;  in utf8ncursor()
679 	u8c->ccc = STOPPER;  in utf8ncursor()
680 	u8c->nccc = STOPPER;  in utf8ncursor()
682 	if (u8c->len != len)  in utf8ncursor()
700 static int utf8cursor(struct utf8cursor *u8c, const struct utf8data *data,
703 	return utf8ncursor(u8c, data, s, (unsigned int)-1);
734 static int utf8byte(struct utf8cursor *u8c)  in utf8byte()  argument
741 		if (u8c->p && *u8c->s == '\0') {  in utf8byte()
742 			u8c->s = u8c->p;  in utf8byte()
743 			u8c->p = NULL;  in utf8byte()
747 		if (!u8c->p && (u8c->len == 0 || *u8c->s == '\0')) {  in utf8byte()
749 			if (u8c->ccc == STOPPER)  in utf8byte()
754 		} else if ((*u8c->s & 0xC0) == 0x80) {  in utf8byte()
756 			if (!u8c->p)  in utf8byte()
757 				u8c->len--;  in utf8byte()
758 			return (unsigned char)*u8c->s++;  in utf8byte()
762 		if (u8c->p) {  in utf8byte()
763 			leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);  in utf8byte()
765 			leaf = utf8nlookup(u8c->data, u8c->hangul,  in utf8byte()
766 					   u8c->s, u8c->len);  in utf8byte()
775 		if (utf8agetab[LEAF_GEN(leaf)] > u8c->data->maxage) {  in utf8byte()
778 			u8c->len -= utf8clen(u8c->s);  in utf8byte()
779 			u8c->p = u8c->s + utf8clen(u8c->s);  in utf8byte()
780 			u8c->s = LEAF_STR(leaf);  in utf8byte()
782 			if (*u8c->s == '\0') {  in utf8byte()
783 				if (u8c->ccc == STOPPER)  in utf8byte()
789 			leaf = utf8lookup(u8c->data, u8c->hangul, u8c->s);  in utf8byte()
799 		if (ccc != STOPPER && u8c->ccc < ccc && ccc < u8c->nccc)  in utf8byte()
800 			u8c->nccc = ccc;  in utf8byte()
806 		if (ccc == u8c->ccc) {  in utf8byte()
807 			if (!u8c->p)  in utf8byte()
808 				u8c->len--;  in utf8byte()
809 			return (unsigned char)*u8c->s++;  in utf8byte()
814 		if (u8c->nccc == STOPPER) {  in utf8byte()
820 			u8c->ccc = MINCCC - 1;  in utf8byte()
821 			u8c->nccc = ccc;  in utf8byte()
822 			u8c->sp = u8c->p;  in utf8byte()
823 			u8c->ss = u8c->s;  in utf8byte()
824 			u8c->slen = u8c->len;  in utf8byte()
825 			if (!u8c->p)  in utf8byte()
826 				u8c->len -= utf8clen(u8c->s);  in utf8byte()
827 			u8c->s += utf8clen(u8c->s);  in utf8byte()
830 			if (!u8c->p)  in utf8byte()
831 				u8c->len -= utf8clen(u8c->s);  in utf8byte()
832 			u8c->s += utf8clen(u8c->s);  in utf8byte()
833 		} else if (u8c->nccc != MAXCCC + 1) {  in utf8byte()
835 			u8c->ccc = u8c->nccc;  in utf8byte()
836 			u8c->nccc = MAXCCC + 1;  in utf8byte()
837 			u8c->s = u8c->ss;  in utf8byte()
838 			u8c->p = u8c->sp;  in utf8byte()
839 			u8c->len = u8c->slen;  in utf8byte()
842 			u8c->ccc = STOPPER;  in utf8byte()
843 			u8c->nccc = STOPPER;  in utf8byte()
844 			u8c->sp = NULL;  in utf8byte()
845 			u8c->ss = NULL;  in utf8byte()
846 			u8c->slen = 0;  in utf8byte()