On Saturday, July 7, 2012 3:42:58 AM UTC-4, Philip Potter wrote: > > Sounds like zippers may be able to help you here. When you use a zipper to > descend into a tree, it automatically generates a trail of breadcrumbs to > enable you to ascend back to the top, without needing backreferences in the > original data structure. And it's purely functional, too. > > Phil > > This may work for me too. I was originally thinking about using clojure.walk, which only has access to the node itself. Thanks.
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