/// <summary>
/// 判断输入的字符串是否是合法的IPV6 地址
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsIPV6(string input)
{
string pattern = "";
string temp = input;
string[] strs = temp.Split(':');
if (strs.Length > 8)
{
return false;
}
int count = RegexUtil.GetStringCount(input, "::");
if (count > 1)
{
return false;
}
else if (count == 0)
{
pattern = @"^([\da-f]{1,4}:){7}[\da-f]{1,4}$";
return IsMatch(pattern, input);
}
else
{
pattern = @"^([\da-f]{1,4}:){0,5}::([\da-f]{1,4}:){0,5}[\da-f]{1,4}$";
return IsMatch(pattern, input);
}
}
/// <summary>
/// 静态实例化单体模式
/// 保证应用程序操作某一全局对象，让其保持一致而产生的对象
/// </summary>
/// <returns></returns>
public static RegexUtil GetInstance()
{
if (RegexUtil.instance == null)
{
RegexUtil.instance = new RegexUtil();
}
return RegexUtil.instance;
}
