IdnMapping.GetUnicode 方法

Source:

IdnMapping.cs

Source:

IdnMapping.cs

Source:

IdnMapping.cs

public:
 System::String ^ GetUnicode(System::String ^ ascii);

public string GetUnicode (string ascii);

member this.GetUnicode : string -> string

Public Function GetUnicode (ascii As String) As String

参数

返回

由 ascii 参数指定的 IDNA 子字符串的 Unicode 等效项。

例外

示例

以下示例使用 GetAscii(String) 方法将国际化域名数组转换为 Punycode。 然后， GetUnicode(String) 方法将 Punycode 域名转换回原始域名，但将原始标签分隔符替换为标准标签分隔符。

using System;
using System.Globalization;

public class Example
{
   public static void Main()
   {
      string[] names = { "bücher.com", "мойдомен.рф", "παράδειγμα.δοκιμή",
                         "mycharity\u3002org",
                         "prose\u0000ware.com", "proseware..com", "a.org",
                         "my_company.com" };
      IdnMapping idn = new IdnMapping();

      foreach (var name in names) {
         try {
            string punyCode = idn.GetAscii(name);
            string name2 = idn.GetUnicode(punyCode);
            Console.WriteLine("{0} --> {1} --> {2}", name, punyCode, name2);
            Console.WriteLine("Original: {0}", ShowCodePoints(name));
            Console.WriteLine("Restored: {0}", ShowCodePoints(name2));
         }
         catch (ArgumentException) {
            Console.WriteLine("{0} is not a valid domain name.", name);
         }
         Console.WriteLine();
      }
   }

   private static string ShowCodePoints(string str1)
   {
      string output = "";
      foreach (var ch in str1)
         output += $"U+{(ushort)ch:X4} ";

      return output;
   }
}
// The example displays the following output:
//    bücher.com --> xn--bcher-kva.com --> bücher.com
//    Original: U+0062 U+00FC U+0063 U+0068 U+0065 U+0072 U+002E U+0063 U+006F U+006D
//    Restored: U+0062 U+00FC U+0063 U+0068 U+0065 U+0072 U+002E U+0063 U+006F U+006D
//
//    мойдомен.рф --> xn--d1acklchcc.xn--p1ai --> мойдомен.рф
//    Original: U+043C U+043E U+0439 U+0434 U+043E U+043C U+0435 U+043D U+002E U+0440 U+0444
//    Restored: U+043C U+043E U+0439 U+0434 U+043E U+043C U+0435 U+043D U+002E U+0440 U+0444
//
//    παράδειγμα.δοκιμή --> xn--hxajbheg2az3al.xn--jxalpdlp --> παράδειγμα.δοκιμή
//    Original: U+03C0 U+03B1 U+03C1 U+03AC U+03B4 U+03B5 U+03B9 U+03B3 U+03BC U+03B1 U+002E U+03B4 U+03BF U+03BA U+03B9 U+03BC U+03AE
//    Restored: U+03C0 U+03B1 U+03C1 U+03AC U+03B4 U+03B5 U+03B9 U+03B3 U+03BC U+03B1 U+002E U+03B4 U+03BF U+03BA U+03B9 U+03BC U+03AE
//
//    mycharity。org --> mycharity.org --> mycharity.org
//    Original: U+006D U+0079 U+0063 U+0068 U+0061 U+0072 U+0069 U+0074 U+0079 U+3002 U+006F U+0072 U+0067
//    Restored: U+006D U+0079 U+0063 U+0068 U+0061 U+0072 U+0069 U+0074 U+0079 U+002E U+006F U+0072 U+0067
//
//    prose ware.com is not a valid domain name.
//
//    proseware..com is not a valid domain name.
//
//    a.org --> a.org --> a.org
//    Original: U+0061 U+002E U+006F U+0072 U+0067
//    Restored: U+0061 U+002E U+006F U+0072 U+0067
//
//    my_company.com --> my_company.com --> my_company.com
//    Original: U+006D U+0079 U+005F U+0063 U+006F U+006D U+0070 U+0061 U+006E U+0079 U+002E U+0063 U+006F U+006D
//    Restored: U+006D U+0079 U+005F U+0063 U+006F U+006D U+0070 U+0061 U+006E U+0079 U+002E U+0063 U+006F U+006D

Imports System.Globalization

Module Example
   Public Sub Main()
      Dim names() As String = { "bücher.com", "мойдомен.рф", "παράδειγμα.δοκιμή",
                                "mycharity" + ChrW(&h3002) + "org",
                                "prose" + ChrW(0) + "ware.com", "proseware..com", "a.org", 
                                "my_company.com" }
      Dim idn As New IdnMapping()
      
      For Each name In names
         Try
            Dim punyCode As String = idn.GetAscii(name)
            Dim name2 As String = idn.GetUnicode(punyCode)
            Console.WriteLine("{0} --> {1} --> {2}", name, punyCode, name2) 
            Console.WriteLine("Original: {0}", ShowCodePoints(name))
            Console.WriteLine("Restored: {0}", ShowCodePoints(name2))
         Catch e As ArgumentException 
            Console.WriteLine("{0} is not a valid domain name.", name)
         End Try
         Console.WriteLine()
      Next   
   End Sub
   
   Private Function ShowCodePoints(str1 As String) As String
      Dim output As String = ""
      For Each ch In str1
         output += String.Format("U+{0} ", Convert.ToUInt16(ch).ToString("X4"))
      Next
      Return output
   End Function
End Module
' The example displays the following output:
'    bücher.com --> xn--bcher-kva.com --> bücher.com
'    Original: U+0062 U+00FC U+0063 U+0068 U+0065 U+0072 U+002E U+0063 U+006F U+006D
'    Restored: U+0062 U+00FC U+0063 U+0068 U+0065 U+0072 U+002E U+0063 U+006F U+006D
'    
'    мойдомен.рф --> xn--d1acklchcc.xn--p1ai --> мойдомен.рф
'    Original: U+043C U+043E U+0439 U+0434 U+043E U+043C U+0435 U+043D U+002E U+0440 U+0444
'    Restored: U+043C U+043E U+0439 U+0434 U+043E U+043C U+0435 U+043D U+002E U+0440 U+0444
'    
'    παράδειγμα.δοκιμή --> xn--hxajbheg2az3al.xn--jxalpdlp --> παράδειγμα.δοκιμή
'    Original: U+03C0 U+03B1 U+03C1 U+03AC U+03B4 U+03B5 U+03B9 U+03B3 U+03BC U+03B1 U+002E U+03B4 U+03BF U+03BA U+03B9 U+03BC U+03AE
'    Restored: U+03C0 U+03B1 U+03C1 U+03AC U+03B4 U+03B5 U+03B9 U+03B3 U+03BC U+03B1 U+002E U+03B4 U+03BF U+03BA U+03B9 U+03BC U+03AE
'    
'    mycharity。org --> mycharity.org --> mycharity.org
'    Original: U+006D U+0079 U+0063 U+0068 U+0061 U+0072 U+0069 U+0074 U+0079 U+3002 U+006F U+0072 U+0067
'    Restored: U+006D U+0079 U+0063 U+0068 U+0061 U+0072 U+0069 U+0074 U+0079 U+002E U+006F U+0072 U+0067
'    
'    prose ware.com is not a valid domain name.
'    
'    proseware..com is not a valid domain name.
'    
'    a.org --> a.org --> a.org
'    Original: U+0061 U+002E U+006F U+0072 U+0067
'    Restored: U+0061 U+002E U+006F U+0072 U+0067
'    
'    my_company.com --> my_company.com --> my_company.com
'    Original: U+006D U+0079 U+005F U+0063 U+006F U+006D U+0070 U+0061 U+006E U+0079 U+002E U+0063 U+006F U+006D
'    Restored: U+006D U+0079 U+005F U+0063 U+006F U+006D U+0070 U+0061 U+006E U+0079 U+002E U+0063 U+006F U+006D

注解

有关域名、标签和标签分隔符的详细信息，请参阅 方法的 IdnMapping.GetAscii(String, Int32, Int32) 备注。

Source:

IdnMapping.cs

Source:

IdnMapping.cs

Source:

IdnMapping.cs

public:
 System::String ^ GetUnicode(System::String ^ ascii, int index);

public string GetUnicode (string ascii, int index);

member this.GetUnicode : string * int -> string

Public Function GetUnicode (ascii As String, index As Integer) As String

参数

返回

由 ascii 和 index 参数指定的 IDNA 子字符串的 Unicode 等效项。

例外

注解

有关域名、标签和标签分隔符的详细信息，请参阅 方法的 IdnMapping.GetAscii(String, Int32, Int32) 备注。

Source:

IdnMapping.cs

Source:

IdnMapping.cs

Source:

IdnMapping.cs

public:
 System::String ^ GetUnicode(System::String ^ ascii, int index, int count);

public string GetUnicode (string ascii, int index, int count);

member this.GetUnicode : string * int * int -> string

Public Function GetUnicode (ascii As String, index As Integer, count As Integer) As String

参数

返回

由 ascii、index 和 count 参数指定的 IDNA 子字符串的 Unicode 等效项。

例外

注解

有关域名、标签和标签分隔符的详细信息，请参阅 方法的 IdnMapping.GetAscii(String, Int32, Int32) 备注。