low level parsing example?

[Tim Allison]

All,
  Apologies for not digging into our codebase more before asking this...
If I wanted a low level SAX-like parser where an event is a COSObject,
where would I start?
  Should I start with the new on-demand parser in master/trunk or should I
go back to 1.8.x?

I'm interested in finding:

* Objects that aren't in the tree
* Objects with generation > 1
* Some per object stats...
* Examples of multiple XMP files

Thank you!

       Cheers,

                   Tim