Pascal (Lazarus/Delphi)

Get a Mail-Merge Replace Pattern

Demonstrates the Chilkat Email.GetReplacePattern method, which returns a replacement pattern — the search string — previously defined for mail-merge operations with SetReplacePattern. The index is zero-based. This example defines two patterns and enumerates them.

Background: In Chilkat's mail-merge, each entry is a pattern (a placeholder token such as FIRST_NAME) paired with a replacement string. GetReplacePattern retrieves the search side of the pair at a given index; GetReplaceString retrieves the matching replacement. Reading them back is useful for inspecting or logging exactly which substitutions will be applied when the message is sent.

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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
  email: TEmail;
  n: Integer;
  i: Integer;

begin
  //  Demonstrates the GetReplacePattern method, which returns a replacement pattern (the
  //  search string) previously defined for mail-merge operations with SetReplacePattern.
  //  The index is zero-based.

  email := TEmail.Create;
  email.Subject := 'Hello FIRST_NAME';
  email.Body := 'Dear FIRST_NAME, welcome to CITY.';

  email.SetReplacePattern('FIRST_NAME','John');
  email.SetReplacePattern('CITY','Denver');

  n := email.NumReplacePatterns;

  for i := 0 to n - 1 do
    begin
      WriteLn('Pattern ' + i + ': ' + email.GetReplacePattern(i));
    end;



  email.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.