public Enumeration unused(){
  Vector unUsed=new Vector();
  Enumeration names=used.keys();
  while (names.hasMoreElements()) {
    String name=(String)names.nextElement();
    Boolean isUsed=(Boolean)used.get(name);
    if (!isUsed.booleanValue())     unUsed.addElement(name);
  }
  return unUsed.elements();
}

public Enumeration unused ( ) { Vector unUsed = new Vector ( ) ; Enumeration names = used . keys ( ) ; while ( names . hasMoreElements ( ) ) { String name = ( String ) names . nextElement ( ) ; Boolean isUsed = ( Boolean ) used . get ( name ) ; if ( ! isUsed . booleanValue ( ) ) unUsed . addElement ( name ) ; } return unUsed . elements ( ) ; }
returns all unused macros .
