Validating xml parser?

Hi,

Is there any validating xml parsers available with rubu or rubyonrails?
I tried REXML but that is not a validating parser. All other information
on the web links to some 3rd partly xml parsers.

I am using rails on Windows and hence cannot use libxml. I checked
hpricot but that is a html parser I guess.

Any pointers will be helpful.

Thanks,
Sudhindra

Really? http://rubyforge.org/frs/?group_id=494 claims to have
downloads for windows.

Fred