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RefNode Class Reference

A RefNode represents a reference to another feature structure. More...

Inheritance diagram for RefNode:

GenericNode List of all members.

Public Attributes

int ref
 The feature structure referenced by this node.


Detailed Description

A RefNode represents a reference to another feature structure.

RefNodes are identical to tags, the term used in HPSG. Tags are used to indicate a point where structure sharing occurs.


Member Data Documentation

int RefNode::ref
 

The feature structure referenced by this node.

This feature structure must be embedded in a ReentNode, and ref must be equal to the ReentNode::ref value. RefNodes are displayed by a little box that contains a number, which is the same value as ref.


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