Hi,

I'm trying to find a solution for copying an existing tree with an identity transformation.
Some nodes should be modified. For the most tasks I have a solution but this one.

Transforming a node like this:
----------------
input tree:
/context-node/
	+-/ A /
	+-/ B /
	+-/ C mode="x" /
	+-/ D mode="x" /
	+-/ E /
	+-/ F /
-----------------
result tree:
/context-node/
	+-/ A /
	+-/ B /
	+-/ X /
		+-/ C mode="x" /
		+-/ D mode="x" /
	+-/ E /
	+-/ F /
===========

My approach uses the recursion pattern (Kay 2001 p. 614) to iterate through the child node list.
The best I've got so far is:
-----------------
result tree:
/context-node/
	+-/ A /
	+-/ B /
	+-/ X /
		+-/ C mode="x" /
		+-/ D mode="x" /
		+-/ E /
		+-/ F /
===========

I think this is so because the recursion levels lay upon each other and inserting the X node in one
effects the rest node list even if I test for 'not mode' Nodes.

Question: Is the recursion pattern the best way to do the job and I only need to do more reasoning?
Or, does anyone know an alternative way to do that?

Romeo


-- 
Romeo Disca
Email: romeo.disca@xxxxxxxxxxx

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