Mine

							dupString = dupString.replaceAll("^[\\s\\t]+", "");
							dupString = dupString.replaceAll("[\\s\\t]+$", "");
							if (!dupString.matches("^\\(.*\\)$"))
							{
								Assembler.errors.addElement(
									new AssemblyError(
										this.getContent()[0].getLineNumber(),
										ErrorTableEntry.ErrorType.INVALID_DUP_DIRECTIVE
									)
								);
							}