SAX.setDocumentLocator()
SAX.startDocument()
SAX.internalSubset(doc, , )
SAX.elementDecl(doc, 1, ...)
SAX.attributeDecl(doc, defatt, 9, 1, 0, ...)
SAX.attributeDecl(doc, xmlns:tst, 1, 4, http://example.org, ...)
SAX.attributeDecl(doc, tst:att, 9, 1, 1, ...)
SAX.externalSubset(doc, , )
SAX.startElement(doc, att='1')
SAX.endElement(doc)
SAX.endDocument()
