function StrTok(Phrase: Pchar; Delimeter: PChar): Pchar;
const
  tokenPtr: PChar = nil;
  workPtr: PChar = nil;
var
  delimPtr: Pchar;
begin
  if (Phrase <> nil) then
    workPtr := Phrase
  else
    workPtr := tokenPtr;

  if workPtr = nil then
  begin
    Result := nil;
    Exit;
  end;

  delimPtr := StrPos(workPtr, Delimeter);

  if (delimPtr <> nil) then
  begin
    delimPtr^ := Chr(0);
    tokenPtr := delimPtr + 1
  end
  else
    tokenPtr := nil;

  Result := workPtr;
end;