code: void recomposeAttributeSets(ElemAttributeSet attrSet)
    {
      ArrayList attrSetList = (ArrayList) m_attrSets.get(attrSet.getName());
  
      if (null == attrSetList)
      {
        attrSetList = new ArrayList();
  
        m_attrSets.put(attrSet.getName(), attrSetList);
      }
  
      attrSetList.add(attrSet);
    }
docs: Recompose the attribute-set declarations.
  
  @param attrSet An attribute-set to add to the hashtable of attribute sets.