Char.IsLowSurrogate() IsHighSurrogate() and IsSurrogatePair()

   

Imports System
Imports Microsoft.VisualBasic

Class Sample
   Public Shared Sub Main()
      Dim cHigh As Char = ChrW(&HD800)

      Dim cLow  As Char = ChrW(&HDC00)
      Dim s1 = New [String](New Char() {"a"c, ChrW(&HD800), ChrW(&HDC00), "z"c})

      Console.WriteLine("{0:X4}", AscW(cHigh))
      Console.WriteLine("{0:X4}", AscW(cLow))
      Dim i As Integer
      For i = 0 To s1.Length - 1
         Console.WriteLine("s1({0}) = {1:X4} ", i, AscW(s1.Chars(i)))
      Next i

      Console.WriteLine([Char].IsHighSurrogate(cLow))
      Console.WriteLine([Char].IsHighSurrogate(cHigh))
      Console.WriteLine([Char].IsHighSurrogate(s1, 0))
      Console.WriteLine([Char].IsHighSurrogate(s1, 1))

      Console.WriteLine([Char].IsLowSurrogate(cLow))
      Console.WriteLine([Char].IsLowSurrogate(cHigh))
      Console.WriteLine([Char].IsLowSurrogate(s1, 0))
      Console.WriteLine([Char].IsLowSurrogate(s1, 2))

      Console.WriteLine([Char].IsSurrogatePair(cHigh, cLow))
      Console.WriteLine([Char].IsSurrogatePair(s1, 0))
      Console.WriteLine([Char].IsSurrogatePair(s1, 1))
      Console.WriteLine([Char].IsSurrogatePair(s1, 2))

   End Sub
End Class

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Char.IsLowSurrogate() IsHighSurrogate() and IsSurrogatePair() : Char « Data Types « VB.Net

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