From: henon <meinrad.recheis@...>
Date: 2006-02-22T02:33:30+09:00
Subject: need: hierarchic data structure

hi,
i am searching for an implementation of a hierarchic datastructure that
behaves similar to a file system except that get of an inexistent path
returns nil and set of an unexistent path creates the required nodes
silently.

example:
d=HierarchicData.new

d[:foo, :bar]   # => nil
d[:foo, :bar]=42
d[:foo, :bar]   # => 42

d[:foo, :foo, 0, 1, :bar]=Object.new # creates a hash in an array in an
array in a hash in a hash

i want to check if this kind of data structure (or similar) has been
implemented already as library. if not i am going to do it.

thx for any comments!
-- henon