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Linguistic Tree Constructor 3.0.0 (Default branch)

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Special Forums News, Links, Events and Announcements Software Releases - RSS News Linguistic Tree Constructor 3.0.0 (Default branch)
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Old 10-04-2008
Linguistic Tree Constructor 3.0.0 (Default branch)
Image Linguistic Tree Constructor is an application for drawing linguistic syntax trees. "Generic" trees as well as RRG and X-Bar trees are supported, as is exporting to Annotation Graph XML format. Printing and copying parts of the tree to clipboard are supported. License: GNU General Public License (GPL) Changes:
The file format was changed from an ad-hoc solution to being based on the TIGER-XML standard. All tree operations are now substantially faster. The state of the interface is now saved in the document file. Export to Emdros MQL was improved. Image

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tree::simple::visitor::tonestedhash

Tree::Simple::Visitor::ToNestedHash(3pm)		User Contributed Perl Documentation		  Tree::Simple::Visitor::ToNestedHash(3pm)

NAME

       Tree::Simple::Visitor::ToNestedHash - A Visitor for creating nested hash trees from Tree::Simple objects.

SYNOPSIS

	 use Tree::Simple::Visitor::ToNestedHash;

	 my $visitor = Tree::Simple::Visitor::ToNestedHash->new();

	 # given this Tree::Simple tree
	 my $tree = Tree::Simple->new("Root")
		       ->addChildren(
			   Tree::Simple->new("Child1")
			       ->addChildren(
				   Tree::Simple->new("GrandChild1"),
				   Tree::Simple->new("GrandChild2")
			       ),
			   Tree::Simple->new("Child2"),
		       );

	 $tree->accept($visitor);

	 my $array_tree = $visitor->getResults();

	 # this then creates the equivalent nested array tree:
	 # {
	 # Root => {
	 #	   Child1 => {
	 #		   GrandChild1 => {},
	 #		   GrandChild2 => {}
	 #		   },
	 #	   Child2 => {}
	 #	   }
	 # }

DESCRIPTION

       Given a tree constructed from a Tree::Simple heirarchy, this Visitor will create the equivalent tree of nested hashes.

METHODS

       new There are no arguments to the constructor the object will be in its default state. You can use the "setNodeFilter" and "includTrunk"
	   methods to customize its behavior.

       includTrunk ($boolean)
	   Setting the $boolean value to true(1) will cause the node value of the tree's root to be included in the nested hash output, setting
	   it to false will do the opposite.

       setNodeFilter ($filter_function)
	   This method accepts a CODE reference as its $filter_function argument and throws an exception if it is not a code reference. This code
	   reference is used to filter the tree nodes as they are placed into the hash tree. The $filter_function is passed a Tree::Simple object,
	   and is expected to return the value desired for inclusion into the hash tree.

       visit ($tree)
	   This is the method that is used by Tree::Simple's "accept" method. It can also be used on its own, it requires the $tree argument to be
	   a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.

       getResults
	   This method will return the hash tree constructed.

BUGS

       None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.

CODE COVERAGE

       See the CODE COVERAGE section in Tree::Simple::VisitorFactory for more inforamtion.

SEE ALSO

       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.

AUTHOR

       stevan little, <stevan@iinteractive.com>

COPYRIGHT AND LICENSE

       Copyright 2004, 2005 by Infinity Interactive, Inc.

       <http://www.iinteractive.com>

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.10.1							    2005-07-14				  Tree::Simple::Visitor::ToNestedHash(3pm)