ConvertToUtf32

[TiGü]

Die ConvertToUtf32-Funktionen sind class functions.
Die kannst du wie folgt anwenden:

Delphi-Quellcode:

program Project1;

{$APPTYPE CONSOLE}

{$R *.res}

uses
  System.Character;

var
  MyChar1, MyChar2: Char;
  MyUCS4Char: UCS4Char;

begin
//    IsSurrogate(MyChar);
    MyChar1.IsSurrogate;
//    MyUCS4Char := ConvertToUtf32(MyChar1, MyChar2);
    MyUCS4Char := Char.ConvertToUtf32(MyChar1, MyChar2);
end.

Siehe auch:

Delphi-Quellcode:

type
  TCharHelper = record helper for Char
  private
    class procedure RaiseCheckStringRangeException(Index, LowIndex, MaxIndex: Integer); static;
  public
    const
      MaxHighSurrogate       = #$DBFF;
      MaxLowSurrogate        = #$DFFF;
      MaxSurrogate           = #$DFFF;
      MinHighSurrogate       = #$D800;
      MinLowSurrogate        = #$DC00;
      MinSurrogate           = #$D800;
    class function MaxCodePoint: Integer; static;
    class function UnicodeDataVersion: string; static;

    class function ConvertFromUtf32(C: UCS4Char): string; static;
    class function ConvertToUtf32(const S: string; Index: Integer): UCS4Char; overload; inline; static;
    class function ConvertToUtf32(const S: string; Index: Integer; out CharLength: Integer): UCS4Char; overload; static;
    class function ConvertToUtf32(const HighSurrogate, LowSurrogate: Char): UCS4Char; overload; static;
...

[freimatz]

Wenn ich schreibe "UC := Char.ConvertToUtf32(C, C2);" dann kommt
"[dcc32 Error] ... E2018 Record, object or class type required"

Nachtrag: Ah habs - "Char" war bei mir etwas anderes. Mit WideChar geht es.