Pascal (Lazarus/Delphi)

Convert String to GSM 03.38

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Demonstrates how to convert a string to the GSM character set. For more information about the GSM character set, see GSM Character Set

Note: This example requires Chilkat v9.5.0.79 or greater. Support for the GSM character set was added in v9.5.0.79.

Pascal (Lazarus/Delphi)

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.BinData;

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

procedure RunDemo;
var
  success: Boolean;
  s: string;
  bdGsm: TBinData;

begin
  success := False;

  //  Demonstrates how to convert a string to the GSM character set byte representation.

  s := 'support@chilkatsoft.com, {abc}';

  //  In the above string the a-z letters have the same 1-byte values in the GSM character set.
  //  The '@' character is the 0x00 byte in GSM.
  //  The curly brace chars are 2-bytes each in GSM -- each beginning with the 0x1B escape char.
  //  The '.', ' ', and ',' are the same in GSM as us-ascii.

  //  Let's convert to GSM.

  //  bdGsm will contain the GSM bytes.
  bdGsm := TBinData.Create;

  //  Append the string to bdGsm.  The 2nd arg "gsm" tells AppendString to
  //  convert the incoming string to the gsm byte representation.
  success := bdGsm.AppendString(s,'gsm');

  //  Let's examine what we have in hex:
  WriteLn(bdGsm.GetEncoded('hex'));

  //  The result is:  737570706F7274006368696C6B6174736F66742E636F6D2C201B286162631B29

  //  Save the GSM bytes to a file.
  success := bdGsm.WriteFile('qa_output/gsm.txt');


  bdGsm.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.