- (NSString *)translitString:(NSString *)src toRus:(bool)rus
{
    NSMutableString *result = [[NSMutableString alloc] init];

    NSArray *rusArr = @[@"а", @"б", @"в", @"г", @"д", @"е", @"ё",  @"ж",  @"з", @"и", @"й", @"к", @"л", @"м", @"н", @"о", @"п", @"р", @"с", @"т", @"у", @"ф", @"х", @"ц",  @"ч",  @"ш", @"щ",   @"ь", @"ы", @"ъ", @"э", @"ю",  @"я"];
    NSArray *engArr = @[@"a", @"b", @"v", @"g", @"d", @"e", @"yo", @"zh", @"z", @"i", @"y", @"k", @"l", @"m", @"n", @"o", @"p", @"r", @"c", @"t", @"u", @"f", @"h", @"ts", @"ch", @"sh", @"sch", @"'", @"y", @"",  @"e", @"yu", @"ya"];

    for(int a = 0; a < src.length; a++)
    {
        NSString *str = [src substringWithRange:NSMakeRange(a, 1)];
        for(int b = 0; b < rusArr.count; b++)
        {
            if(rus)
            {
                if([str isEqualToString:[engArr objectAtIndex:b]])
                {
                    [result appendString:[rusArr objectAtIndex:b]];
                    break;
                }
            }
            else
            {
                if([str isEqualToString:[rusArr objectAtIndex:b]])
                {
                    [result appendString:[engArr objectAtIndex:b]];
                    break;
                }
            }
        }
    }
    return result;
}