nano-12/src/chars.c

681  * string in reverse, starting at rev_start. */
683 	char *rev_start)
685     assert(haystack != NULL && needle != NULL && rev_start != NULL);
687     for (; rev_start >= haystack; rev_start--) {
690 	for (r = rev_start, q = needle; *r == *q && *q != '\0'; r++, q++)
694 	    return rev_start;
703  * the string in reverse, starting at rev_start. */
705 	const char *rev_start)
707     assert(haystack != NULL && needle != NULL && rev_start != NULL);
709     for (; rev_start >= haystack; rev_start--) {
710 	const char *r = rev_start, *q = needle;
716 	    return rev_start;
724  * rev_start. */
726 	const char *rev_start)
734 	assert(haystack != NULL && needle != NULL && rev_start != NULL);
740 	    const char *r = rev_start, *q = needle;
775 	    if (rev_start == haystack)
778 		rev_start = haystack + move_mbleft(haystack, rev_start -
785 	return found_needle ? rev_start : NULL;
788 	return revstrcasestr(haystack, needle, rev_start);
910  * string in reverse, starting at rev_start. */
912 	*rev_start)
914     assert(s != NULL && accept != NULL && rev_start != NULL);
916     for (; rev_start >= s; rev_start--) {
917 	const char *q = (*rev_start == '\0') ? NULL : strchr(accept,
918 		*rev_start);
921 	    return (char *)rev_start;
929  * rev_start. */
931 	*rev_start)
933     assert(s != NULL && accept != NULL && rev_start != NULL);
940 	    const char *q = (*rev_start == '\0') ? NULL :
941 		mbstrchr(accept, rev_start);
944 		return (char *)rev_start;
946 	    if (rev_start == s)
949 		rev_start = s + move_mbleft(s, rev_start - s);
955 	return revstrpbrk(s, accept, rev_start);