From 1b872a0ede581b1edef3c04d5eec405c87056f3c Mon Sep 17 00:00:00 2001
From: Ben Harris <ben@tilde.team>
Date: Fri, 5 Aug 2022 14:16:46 -0400
Subject: init

---
 Puny.cs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Puny.cs

(limited to 'Puny.cs')

diff --git a/Puny.cs b/Puny.cs
new file mode 100644
index 0000000..f6be5f3
--- /dev/null
+++ b/Puny.cs
@@ -0,0 +1,19 @@
+string ShowCodePoints(string str1) =>
+    str1.Aggregate("", (current, ch) => current + $"U+{Convert.ToUInt16(ch):X4} ");
+
+var idn = new IdnMapping();
+foreach (var name in args)
+{
+    try
+    {
+        var puny = idn.GetAscii(name);
+        var name2 = idn.GetUnicode(puny);
+        Console.WriteLine($"{name} --> {puny} --> {name2}");
+        Console.WriteLine($"Original: {ShowCodePoints(name)}");
+        Console.WriteLine($"Restored: {ShowCodePoints(name2)}");
+    }
+    catch (ArgumentException)
+    {
+        Console.WriteLine($"{name} is not a valid domain name.");
+    }
+}
\ No newline at end of file
-- 
cgit 1.4.1