* Ewoc for trees
@ 2002-12-20 15:41 Eric.Belpaire
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From: Eric.Belpaire @ 2002-12-20 15:41 UTC (permalink / raw)
Hello,
I'm looking for a way to manipulate trees of lisp objects and save those to
a file so that I can 'load' them again later.
I'm wondering whether ewoc.el could be extended or used as a stepping stone
to do this.
A tree's node can have zero, one or more children.
A tree's node can have zero, one or more parents.
A tree has a starting node, which usually has no parents.
Nodes without children are leaves.
There can be circular routes, i.e. links from a node back to the starting
node.
Instead of 'left', a tree would have 'parents' (defined as a list of
nodes).
Instead of 'right', a tree would have 'children' (defined as a list of
nodes).
I've drafted below the correspondence I envisage.
Can someone tell whether this makes sense?
Does someone know whether this has already been implemented?
Any suggestions?
Thanks in advance for any feedback provided.
Eric
;; collection ==> ewoc ==> tree
;; tin ==> ewoc--node ==> tree_node
;; cookie ==> data or element or elem ==> node_content
Eric BELPAIRE
Equant - CS&N / Access Technology
Le Galion - 4 / 070
18 rue Paul Lafargue
92904 Paris La Defense 10 Cedex
CVS: 220 1294
Phone: +33 14641 1294
http://www.equant.com
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