--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Test/RewritingTest/ParseAddress.cs	Thu Nov 19 16:46:00 2020 +0900
@@ -0,0 +1,66 @@
+using System;
+using System.Net;
+
+class ParseAddress
+{
+
+    private static void Main(string[] args)
+    {
+        string IPaddress;
+
+        if (args.Length == 0)
+        {
+            Console.WriteLine("Please enter an IP address.");
+            Console.WriteLine("Usage:   >cs_parse any IPv4 or IPv6 address.");
+            Console.WriteLine("Example: >cs_parse 127.0.0.1");
+            Console.WriteLine("Example: >cs_parse 0:0:0:0:0:0:0:1");
+            return;
+        }
+        else
+        {
+            IPaddress = args[0];
+        }
+
+        // Get the list of the IPv6 addresses associated with the requested host.
+        Parse(IPaddress);
+    }
+
+    // This method calls the IPAddress.Parse method to check the ipAddress
+    // input string. If the ipAddress argument represents a syntatically correct IPv4 or
+    // IPv6 address, the method displays the Parse output into quad-notation or
+    // colon-hexadecimal notation, respectively. Otherwise, it displays an
+    // error message.
+    private static void Parse(string ipAddress)
+    {
+        try
+        {
+            // Create an instance of IPAddress for the specified address string (in
+            // dotted-quad, or colon-hexadecimal notation).
+            IPAddress address = IPAddress.Parse(ipAddress);
+
+            // Display the address in standard notation.
+            Console.WriteLine("Parsing your input string: " + "\"" + ipAddress + "\"" + " produces this address (shown in its standard notation): "+ address.ToString());
+        }
+
+        catch(ArgumentNullException e)
+        {
+            Console.WriteLine("ArgumentNullException caught!!!");
+            Console.WriteLine("Source : " + e.Source);
+            Console.WriteLine("Message : " + e.Message);
+        }
+
+        catch(FormatException e)
+        {
+            Console.WriteLine("FormatException caught!!!");
+            Console.WriteLine("Source : " + e.Source);
+            Console.WriteLine("Message : " + e.Message);
+        }
+
+        catch(Exception e)
+        {
+            Console.WriteLine("Exception caught!!!");
+            Console.WriteLine("Source : " + e.Source);
+            Console.WriteLine("Message : " + e.Message);
+        }
+    }
+}
\ No newline at end of file