edu.stanford.nlp.trees.tregex.tsurgeon

Class TsurgeonPattern

java.lang.Object

edu.stanford.nlp.trees.tregex.tsurgeon.TsurgeonPattern

public abstract class TsurgeonPattern
extends Object

An abstract class for patterns to manipulate Trees when successfully matched on with a TregexMatcher.

Author:

Roger Levy

Method Summary

Methods

Modifier and Type	Method and Description
abstract Tree	evaluate(Tree t, TregexMatcher m) Evaluates the surgery pattern against a Tree and a TregexMatcher that has been successfully matched against the tree.
protected void	setRoot(edu.stanford.nlp.trees.tregex.tsurgeon.TsurgeonPatternRoot root)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

setRoot

protected void setRoot(edu.stanford.nlp.trees.tregex.tsurgeon.TsurgeonPatternRoot root)

toString

public String toString()

Overrides:

toString in class Object

evaluate

public abstract Tree evaluate(Tree t,
            TregexMatcher m)

Evaluates the surgery pattern against a Tree and a TregexMatcher that has been successfully matched against the tree.

Parameters:

t - The Tree that has been matched upon; typically this tree will be destructively modified.

m - The successfully matched TregexMatcher.

Returns:

Some node in the tree; depends on implementation and use of the specific subclass.