If range is a palindrome larger than minLength. See also: http://forum.dlang.org/thread/dlfeiszyweafpjiocplf@forum.dlang.org#post-vpzuaqxvtdpzpeuorxdl:40forum.dlang.org See also: https://stackoverflow.com/questions/21849580/equality-operator-in-favour-of-std-range-equal TODO: Test graphemes in string and wstring.