// Get the Position of a string, starting at the end
// Ruckwartiges Vorkommen einer Zeichenkette innerhalb eines strings, Position von hinten
function LastPos(SearchStr, Str: string): Integer;
 var
  i: Integer;
  TempStr: string;
 begin
  Result := Pos(SearchStr, Str);
  if Result = 0 then Exit;
  if (Length(Str) > 0) and (Length(SearchStr) > 0) then
  begin
  for i := Length(Str) + Length(SearchStr) - 1 downto Result do
  begin
  TempStr := Copy(Str, i, Length(Str));
  if Pos(SearchStr, TempStr) > 0 then
  begin
  Result := i;
  break;
  end;
  end;
  end;
 end;
 // Search for the next occurence of a string from a certain Position
// Nachstes Vorkommen einer Zeichenkette ab einer frei definierbaren Stelle im string
function Pos(SearchStr, Str: string; Position: Integer): Integer;
 begin
  Delete(Str, 1, Position - 1);
  Result := Pos(SearchStr, upperCase(Str));
  if Result = 0 then Exit;
  if (Length(Str) > 0) and (Length(SearchStr) > 0) then
  Result := Result + Position + 1;
 end;
 // Get the number of characters from a certain Position to the string to be searched
// Anzahl der Zeichen von einer definierbaren Position zur gesuchten Zeichenkette
function PosRel(SearchStr, Str: string; Position: Integer): Integer;
 begin
  Delete(Str, 1, Position - 1);
  Result := Pos(SearchStr, UpperCase(Str)) - 1;
 end;
 // simple replacement for strings
// einfaches Ersetzen von Zeichenketten
function ReplaceStr(Str, SearchStr, ReplaceStr: string): string;
 begin
  while Pos(SearchStr, Str) <> 0 do
  begin
  Insert(ReplaceStr, Str, Pos(SearchStr, Str));
  Delete(Str, Pos(SearchStr, Str), Length(SearchStr));
  end;
  Result := Str;
 end;