se.lth.cs.nlp.nlputils.pstree
Class TokenNode

java.lang.Object
  se.lth.cs.nlp.nlputils.pstree.Node
      se.lth.cs.nlp.nlputils.pstree.TokenNode

public class TokenNode
extends Node

A terminal node in a phrase structure tree.

Field Summary

String	lemma The lemma, if available.
String	pos The part of speech.
int	position The position in the sentence.
(package private) Node	subtree
String	word The word.

Fields inherited from class se.lth.cs.nlp.nlputils.pstree.Node

parent

Constructor Summary

TokenNode()

Method Summary

TokenNode	depParent() The dependency parent of this token node.
TokenNode	getFirstToken() Returns the leftmost dependent token.
TokenNode	getHead() Returns the head token node.
String	getLabel() For a token node, returns the part of speech; for a nonterminal node, returns its label.
TokenNode	getLastToken() Returns the rightmost dependent token.
boolean	isPunctuation() Returns true if this is a punctuation token.
boolean	isSameOrAncestorOf(Node n) Returns true if this node is identical to or is an ancestor of n.
Pair<Integer,Integer>	span() Returns the span of the node, that is the index of the leftmost dependent token and the index of the rightmost dependent token + 1.
String	toString()

Methods inherited from class se.lth.cs.nlp.nlputils.pstree.Node

overlaps, setHeads, setHeadsSwedish

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

word

public String word

The word.

pos

public String pos

The part of speech.

lemma

public String lemma

The lemma, if available.

position

public int position

The position in the sentence.

subtree

Node subtree

Constructor Detail

TokenNode

public TokenNode()

Method Detail

toString

public String toString()

Overrides:

toString in class Object

span

public Pair<Integer,Integer> span()

Description copied from class: Node

Returns the span of the node, that is the index of the leftmost dependent token and the index of the rightmost dependent token + 1.

Specified by:

span in class Node

Returns:

the span of the node.

isSameOrAncestorOf

public boolean isSameOrAncestorOf(Node n)

Description copied from class: Node

Returns true if this node is identical to or is an ancestor of n.

Specified by:

isSameOrAncestorOf in class Node

Parameters:

n - the node.

Returns:

true if this node is identical to or is an ancestor of n.

depParent

public TokenNode depParent()

The dependency parent of this token node.

Returns:

the dependency parent of this token node.

getLabel

public String getLabel()

Description copied from class: Node

For a token node, returns the part of speech; for a nonterminal node, returns its label.

Specified by:

getLabel in class Node

Returns:

the label.

getHead

public TokenNode getHead()

Description copied from class: Node

Returns the head token node.

Specified by:

getHead in class Node

Returns:

the head token node.

getLastToken

public TokenNode getLastToken()

Description copied from class: Node

Returns the rightmost dependent token.

Specified by:

getLastToken in class Node

Returns:

the rightmost dependent token.

getFirstToken

public TokenNode getFirstToken()

Description copied from class: Node

Returns the leftmost dependent token.

Specified by:

getFirstToken in class Node

Returns:

the rightmost dependent token.

isPunctuation

public boolean isPunctuation()

Returns true if this is a punctuation token.

Returns:

true if this is a punctuation token.