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RefNode Class Reference

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

Inheritance diagram for RefNode:

List of all members.

Public Attributes
int	ref
	The feature structure referenced by this node.

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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.

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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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