r t = this.opt.caseSensitive ? '' : 'i',
                          n = this.opt.caseSensitive
                            ? [
                                'a\xE0\xE1\u1EA3\xE3\u1EA1\u0103\u1EB1\u1EAF\u1EB3\u1EB5\u1EB7\xE2\u1EA7\u1EA5\u1EA9\u1EAB\u1EAD\xE4\xE5\u0101\u0105',
                                'A\xC0\xC1\u1EA2\xC3\u1EA0\u0102\u1EB0\u1EAE\u1EB2\u1EB4\u1EB6\xC2\u1EA6\u1EA4\u1EA8\u1EAA\u1EAC\xC4\xC5\u0100\u0104',
                                'c\xE7\u0107\u010D',
                                'C\xC