[Expat-discuss] Merge two XML data with libexpat?

[Shawn Walker]

rolf at pointsman.de wrote:
> On  8 Nov, Shawn Walker wrote:
>> Has anybody used libexpat to merge two XML data into one?  Or does 
>> somebody know of a good library to do that?
> 
> "[T]o merge two XML data" mean exactly what?

What I mean is that I have two XML files.  I created a new XML file 
based on some data but I need to merge in the old XML file to merge in 
data that I don't know about that another application had put in the XML 
file.