my %utf8_table = (
          "\xc3\x80" => 'A',    # A`
          "\xc3\xa0" => 'a',    # a`
          "\xc3\x81" => 'A',    # A'
          "\xc3\xa1" => 'a',    # a'
          "\xc3\x82" => 'A',    # A^
          "\xc3\xa2" => 'a',    # a^
          "\xc3\x84" => 'A',    # A:
          "\xc3\x85" => 'A',    # Aring
          "\xc3\xa4" => 'a',    # a:
          "\xc3\xa5" => "a",    # aring
          "\xc3\x83" => 'A',    # A~
          "\xc3\xa3" => 'a',    # a~
          "\xc3\x88" => 'E',    # E`
          "\xc3\xa8" => 'e',    # e`
          "\xc3\x89" => 'E',    # E'
          "\xc3\xa9" => 'e',    # e'
          "\xc3\x8a" => 'E',    # E^
          "\xc3\xaa" => 'e',    # e^
          "\xc3\x8b" => 'E',    # E:
          "\xc3\xab" => 'e',    # e:
          "\xc3\x8c" => 'I',    # I`
          "\xc3\xac" => 'i',    # i`
          "\xc3\x8d" => 'I',    # I'
          "\xc3\xad" => 'i',    # i'
          "\xc3\x8e" => 'I',    # I^
          "\xc3\xae" => 'i',    # i^
          "\xc3\x8f" => 'I',    # I:
          "\xc3\xaf" => 'i',    # i:
          "\xc3\x92" => 'O',    # O`
          "\xc3\xb2" => 'o',    # o`
          "\xc3\x93" => 'O',    # O'
          "\xc3\xb3" => 'o',    # o'
          "\xc3\x94" => 'O',    # O^
          "\xc3\xb4" => 'o',    # o^
          "\xc3\x96" => 'O',    # O:
          "\xc3\xb6" => 'o',    # o:
          "\xc3\x95" => 'O',    # O~
          "\xc3\xb5" => 'o',    # o~
          "\xc3\x98" => 'O',    # O/
          "\xc3\xb8" => 'o',    # o/
          "\xc3\x99" => 'U',    # U`
          "\xc3\xb9" => 'u',    # u`
          "\xc3\x9a" => 'U',    # U'
          "\xc3\xba" => 'u',    # u'
          "\xc3\x9b" => 'U',    # U^
          "\xc3\xbb" => 'u',    # u^
          "\xc3\x9c" => 'U',    # U:
          "\xc3\xbc" => 'u',    # u:
          "\xc3\x87" => 'C',    # ,C
          "\xc3\xa7" => 'c',    # ,c
          "\xc3\x91" => 'N',    # N~
          "\xc3\xb1" => 'n',    # n~
          "\xc3\x9f" => 'ss',   # double-s
    );