Pascal (Lazarus/Delphi)

Parsing a Multipart/Digest Email

See more Email Object Examples

This example demonstrates how to parse a multipart/digest email. An email parsed by this sample could have a MIME structure as follows:

multipart/mixed
    text/plain
    text/plain
    multipart/digest
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
    text/plain

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.Email;

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

procedure RunDemo;
var
  success: Boolean;
  emlPath: string;
  email: TEmail;
  numDigests: Integer;
  eDigest: TEmail;
  i: Integer;
  m: string;

begin
  success := False;

  emlPath := 'qa_data/eml/multipart_digest.eml';

  email := TEmail.Create;

  //  For this example, we'll load the email from a .eml.
  //  The email could alternatively be loaded as a result of downloading from an IMAP or POP3 server..

  success := email.LoadEml(emlPath);
  if (success = False) then
    begin
      WriteLn(email.LastErrorText);
      Exit;
    end;

  numDigests := email.NumDigests;
  WriteLn('num digests = ' + numDigests);

  eDigest := TEmail.Create;
  i := 0;
  while i < numDigests do
    begin
      email.GetDigestEmail(i,eDigest);
      WriteLn(i + ':' + eDigest.FromAddress + ', ' + eDigest.Subject);
      m := eDigest.GetHeaderField('Message');
      if (eDigest.LastMethodSuccess = True) then
        begin
          WriteLn('    Message = ' + m);
        end;
      i := i + 1;
    end;



  email.Free;
  eDigest.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.