setDocumentLocator(locator={columnNumber=1, lineNumber=1})
startDocument()
   startDTD(name="doc", publicId="", systemId="")
      attributeDecl(eName="doc", aName="a", type="", valueDefault="", value="")
      notationDecl(name="n1", publicId="", systemId="http://www.w3.org/")
      notationDecl(name="n2", publicId="", systemId="http://www.w3.org/")
   endDTD()
   startElement(namespaceURI="", localName="doc", qName="doc", atts=[])
   endElement(namespaceURI="", localName="doc", qName="doc")
endDocument()