Merge two XML data with libexpat?

Shawn Walker <[email protected]> Thu, 08 Nov 2007 16:07:05 -0600
Newsgroups gmane.text.xml.expat.general
Message-ID <[email protected]>
Has anybody used libexpat to merge two XML data into one?  Or does 
somebody know of a good library to do that?

Regards,
Shawn