XRTreeFrag and nodeset extension

[Gary L Peskin <ga...@firstech.com>]

I am busily at work on the nodeset extension for XalanJ2.  As
preparation for this, I have cleaned up the convert() method of
MethodResolver.  Unfortunately, I cannot check the changes in at the
present time because the CVS server is not responding -- perhaps it is
backing up at this late hour.

It turns out the nodeset extension is best implemented through some
changes to the XRTreeFrag asNodeIterator() method.  This method
currently returns an unsuitable NodeIterator but is called only from the
new MethodResolver.  I plan on cleaning this up, together with the
convertToNodeset() method tomorrow (Tuesday).

If anyone else is using XRTreeFrag.asNodeIterator(), please let me
know.  I'm making some fairly major conceptual changes to this method so
that it iterates over a single root node that is the root of the RTF
rather than over its children.

I'll post the results as soon as I can (hopefully Tuesday) after
verifying that the nodeset extension works on our test cases.

Gary