[plt-scheme] SXML Experience?

From: Anton van Straaten (anton at appsolutions.com)
Date: Tue Apr 26 01:57:27 EDT 2005

Hans Oesterholt-Dijkema wrote:
>   how can I insert or append new elements
>   to an sxml tree?

Oleg Kiselyov has previously mentioned the Zipper system:


...which is a "pure functional cursor into a data structure. It lets us 
replace an item deep in a data structure, e.g., a tree or a term, 
without any mutation. The result will share as much of its components 
with the old structure as possible."


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