1SAX.setDocumentLocator()
2SAX.startDocument()
3SAX.internalSubset(doc, , )
4SAX.elementDecl(doc, 1, ...)
5SAX.attributeDecl(doc, xmlns, 1, 4, http://www.example.com/, ...)
6SAX.externalSubset(doc, , )
7SAX.startElement(doc)
8SAX.endElement(doc)
9SAX.endDocument()
10