Lazarus Pascal

StringBuilder Encode Charset

Demonstrates the importance of the charset argument when encoding/decoding. Lazarus Pascal

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.StringBuilder;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  s: string;
  sb: TStringBuilder;

begin
  s := 'é é é';

  sb := TStringBuilder.Create;

  sb.Append(s);
  sb.EntityDecode();

  //  The string now contains: "é é é"
  WriteLn(sb.GetAsString());

  //  If encoded to hex using the iso-8859-1 charset, 
  //  each é char is represented in 1 byte.
  //  Output: E920E920E9
  WriteLn(sb.GetEncoded('hex','iso-8859-1'));

  //  If encoded to hex using the utf-8 charset, 
  //  each é char is represented in 2 bytes.
  //  Output: C3A920C3A920C3A9
  WriteLn(sb.GetEncoded('hex','utf-8'));

  //  Here's utf-16
  //  Output: E9002000E9002000E900
  WriteLn(sb.GetEncoded('hex','utf-16'));

  //  utf-32
  //  Output: E900000020000000E900000020000000E9000000
  WriteLn(sb.GetEncoded('hex','utf-32'));


  sb.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.