/// <summary>
/// Determines whether a string is a valid IP address range.
/// </summary>
/// <returns>
/// <see langword="true" /> if <paramref name="str" /> is a valid IP address range; otherwise, <see langword="false" />
/// .
/// </returns>
/// <param name="str">The string to validate.</param>
/// <param name="addressRange">The <see cref="IPRange" /> version of the string.</param>
public static bool TryParse(string str, out IPRange addressRange)
{
var ips = str.Split('-');
if (ips.Length == 2)
{
IPAddress address1;
IPAddress address2;
if (IPAddress.TryParse(ips[0], out address1) && IPAddress.TryParse(ips[1], out address2))
{
if (!address1.Equals(address2))
{
addressRange = new IPRange(address1, address2);
return(true);
}
}
}
addressRange = null;
return(false);
}
/// <summary>
/// Determines whether a string is a valid IP address.
/// </summary>
/// <returns>
/// true if <paramref name="ipString" /> is a valid IP address; otherwise, false.
/// </returns>
/// <param name="ipString">The string to validate.</param>
/// <param name="address">The <see cref="SingleIP" /> version of the string.</param>
public static bool TryParse(string ipString, out SingleIP address)
{
// Check if this is "Any Address" special string
if (ipString.Trim() == "*")
{
address = Any;
return(true);
}
// Check if this is a valid IPAddress
if (IPAddress.TryParse(ipString, out var ipAddress))
{
address = new SingleIP(ipAddress);
return(true);
}
// Check if this is a IP range with only one IP
if (IPRange.TryParse(ipString, out var ipRange) &&
ipRange.StartAddress.Equals(ipRange.EndAddress))
{
address = new SingleIP(ipRange.StartAddress);
return(true);
}
// Check if this is a single IP NetworkAddress
if (NetworkAddress.TryParse(ipString, out var networkAddress) &&
networkAddress.StartAddress.Equals(networkAddress.EndAddress))
{
address = new SingleIP(networkAddress.Address);
return(true);
}
address = null;
return(false);
}
/// <summary>
/// Compares two IP address ranges.
/// </summary>
/// <returns>
/// <see langword="true" /> if the two address ranges are equal; otherwise, <see langword="false" />.
/// </returns>
/// <param name="comparand">An <see cref="IPRange" /> instance to compare to the current instance. </param>
private bool Equals(IPRange comparand)
{
return(StartAddress.Equals(comparand.StartAddress) && EndAddress.Equals(comparand.EndAddress));
}