code: protected void appendAndPush(
            StylesheetHandler handler, ElemTemplateElement elem)
              throws org.xml.sax.SAXException
    {
  
      // Just push, but don't append.
      handler.pushElemTemplateElement(elem);
    }
docs: Append the current template element to the current
  template element, and then push it onto the current template
  element stack.
  
  @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
  @param elem The non-null reference to the ElemVariable element.
  
  @throws org.xml.sax.SAXException Any SAX exception, possibly
  wrapping another exception.