[antlr-interest] Tree Parser vs XPath

[Tom Moog]

Dan Suciu of the Univ of Washington has been doing 
work in this area.  In some cases there are axis
restrictions in order to achieve streaming.

http://www.cs.washington.edu/homes/suciu/XMLTK/

It may now be located at sourceforge.

Some of the ideas in this paper influenced the
design of a streaming xpath engine in a project
at my employer (Sarvega).