Link to XML diff overview

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Wilfred Hughes 2021-05-22 15:05:37 +07:00
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### Tree Diff
Most tree diff implementations focus on XML, and there's a great
overview of techniques [in this blog
post](http://useless-factor.blogspot.com/2008/01/matching-diffing-and-merging-xml.html).
Jane Street's [patdiff](https://github.com/janestreet/patdiff)
implements a tree diff, using [an A* algorithm](https://thume.ca/2017/06/17/tree-diffing/).