public IpV6Address(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
string str1 = value;
int num1 = str1.LastIndexOf(':');
if (num1 == -1)
{
throw new ArgumentException("Invalid IPv6 address format " + value);
}
string str2 = value.Substring(num1 + 1, str1.Length - num1 - 1);
if (str2.IndexOf('.') != -1)
{
uint num2 = new IpV4Address(str2).ToValue();
str1 = str1.Substring(0, num1 + 1) + (num2 >> 16).ToString("x", (IFormatProvider)CultureInfo.InvariantCulture) + ":" + (num2 & (uint)ushort.MaxValue).ToString("x", (IFormatProvider)CultureInfo.InvariantCulture);
}
int num3 = str1.IndexOf("::", StringComparison.Ordinal);
if (num3 != -1)
{
int count = 7 - IEnumerableExtensions.Count <char>((IEnumerable <char>)str1, ':');
if (count < 0)
{
throw new ArgumentException("Invalid IPv6 address format " + value);
}
str1 = str1.Substring(0, num3 + 2) + new string(':', count) + str1.Substring(num3 + 2);
}
IEnumerable <ushort> source = Enumerable.Select <string, ushort>((IEnumerable <string>)str1.Split(':'), (Func <string, ushort>)(part =>
{
if (!string.IsNullOrEmpty(part))
{
return(ushort.Parse(part, NumberStyles.HexNumber, (IFormatProvider)CultureInfo.InvariantCulture));
}
return((ushort)0);
}));
this._value = new UInt128(Enumerable.Aggregate <ushort, ulong>(Enumerable.Take <ushort>(source, 4), 0UL, (Func <ulong, ushort, ulong>)((sum, element) => (sum << 16) + (ulong)element)), Enumerable.Aggregate <ushort, ulong>(Enumerable.Take <ushort>(Enumerable.Skip <ushort>(source, 4), 4), 0UL, (Func <ulong, ushort, ulong>)((sum, element) => (sum << 16) + (ulong)element)));
}