1SAX.setDocumentLocator()
2SAX.startDocument()
3SAX.internalSubset(root, , )
4SAX.elementDecl(root, 1, ...)
5SAX.comment(  " )
6SAX.externalSubset(root, , )
7SAX.startElement(root)
8SAX.endElement(root)
9SAX.endDocument()
10