>I saw a paper from a commercial vendor at:

>http://www.deltaxml.com/pdf/merging-xml-files.pdf

>I would be very interested to learn what you find out.
I've played around with the deltaxml output and though I didn't have any
use for it at the time I was pleased, it gave the impression of a
product upon which one could build any number of xml differencing
systems. 

>I wonder, has anybody played around with subversion to get back well
formed
>diffs?

I think Jeni has some posted examples of this before.



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