[XML-SIG] SAX2: Handler classes

[Lars Marius Garshol]

* Lars Marius Garshol
|
|  http://xml.org/sax/handlers/lexical <LexicalHandler>
|    Receive callbacks for comments, CDATA sections, and (possibly)
|    entity references.

* Fred L. Drake
| 
| Undecided; there are times when I think it would be nice to have
| these things, especially when trying to make minimal edits.

Personally, I think we should have this, partly since it's needed for
full DOM support. Also, some applications will need this. And in any
case support for it will be optional.

--Lars M.