xml-dev - Re: xml diff?

["Mark D. Anderson" <mda@discerning.com>]

Pavel Velikhov <pvelikho@cs.ucsd.edu> wrote:
>Here is a great paper on edit distance between trees (includes rather fancy edit commands, the result in an NP-complete problem
however. But
>you can choose any subset that seems useful and efficient):
>
>S. Chawathe, H. Garcia-Molina "Meaningful Change Detection in Structured Data", SIGMOD 1997,
http://www-db.stanford.edu/pub/papers/bbdiff.ps

Just what i was looking for, thanks.
Takes me back to the good old days, when i didn't just do engineering.

Regarding various people's references to ibm's xml diff -- unfortunately
they don't seem to give out code.
I can't believe someone would think there is a proprietary interest
in something like that, but there it is.
Maybe I should take out a patent on "An efficient difference algorithm
for structured textual markup". I bet I could get it through the PTO.
(If IBM didn't beat me to it, that is....)

-mda



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