Tree::Simple::Visitor::VariableDepthClone - A Visitor for cloning parts of Tree::Simple hierarchy
use Tree::Simple::Visitor::VariableDepthClone; # create an visitor my $visitor = Tree::Simple::Visitor::VariableDepthClone->new(); $visitor->setCloneDepth(3); # pass our visitor to the tree $tree->accept($visitor); my $partial_tree = $visitor->getClone();
This visitor will clone
There are no arguments to the constructor the object will be in its default state. You can use the
setNodeFiltermethod to customize its behavior.
- includeTrunk ($boolean)
Based upon the value of
$boolean, this will tell the visitor to include the trunk of the tree in the traversal as well. This basically means it will clone the root node as well.
- setCloneDepth ($number)
- setNodeFilter ($filter_function)
This method accepts a CODE reference as its
$filter_functionargument and throws an exception if it is not a code reference. This code reference is used to filter the tree nodes as they are cloned.
- visit ($tree)
This is the method that is used by Tree::Simple's
acceptmethod. It can also be used on its own, it requires the
$treeargument to be a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.
This method returns the cloned partial tree.
None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.
See the CODE COVERAGE section in Tree::Simple::VisitorFactory for more inforamtion.
These Visitor classes are all subclasses of Tree::Simple::Visitor, which can be found in the Tree::Simple module, you should refer to that module for more information.
stevan little, <email@example.com>
Copyright 2005 by Infinity Interactive, Inc.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.