__wcollate_range_cmp
__wcollate_range_cmp(c, test) <= 0
&& __wcollate_range_cmp(test, c2) <= 0
__wcollate_range_cmp(CHAR(c), CHAR(k)) <= 0 &&
__wcollate_range_cmp(CHAR(k), CHAR(pat[1])) <= 0
int __wcollate_range_cmp(wchar_t, wchar_t);