On Tue, Jun 27, 2006 at 06:08:00AM +0900, Eric Armstrong wrote:
> I've seen it mentioned as maybe being in
> REXML, NET, or MECHANIZE, but have not
> managed to find in any of those.

Mechanize uses HTML::XMLParser to parse HTML.

> 
> Most likely, I've missed it.
> Anyone know how to find it?

HTML::XMLParser is part of the ruby-web project:
http://rubyforge.org/projects/ruby-web/

> 
> And can anyone compare with HTree?
> (I like HTree's to_rexml function, but
> are they equally robust?)

Not sure.....  I've never used HTree.

Hope some of this helps!

--Aaron