SAX.setDocumentLocator()
SAX.startDocument()
SAX.internalSubset(EXAMPLE, , example.dtd)
SAX.entityDecl(xml, 1, (null), (null), Extensible Markup Language)
SAX.getEntity(xml)
SAX.startElement(EXAMPLE)
SAX.characters(
    , 5)
SAX.getEntity(xml)
SAX.warning: Entity 'xml' not defined
SAX.characters(
, 1)
SAX.endElement(EXAMPLE)
SAX.endDocument()