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Stanford CoreNLP provides a set of natural language analysis tools which can take raw English language text input and give the base forms of words, their parts of speech, whether they are names of companies, people, etc., normalize dates, times, and numeric quantities, mark up the structure of sentences in terms of phrases and word dependencies, and indicate which noun phrases refer to the same entities. It provides the foundational building blocks for higher level text understanding applications.

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package edu.stanford.nlp.parser.lexparser;

import java.util.List;

import edu.stanford.nlp.ling.HasWord;


/** @author Dan Klein */
class ProjectionScorer implements Scorer {

  protected GrammarProjection gp;
  protected Scorer scorer;

  protected final Options op;

  protected Edge project(Edge edge) {
    Edge tempEdge = new Edge(op.testOptions.exhaustiveTest);
    tempEdge.start = edge.start;
    tempEdge.end = edge.end;
    tempEdge.state = gp.project(edge.state);
    tempEdge.head = edge.head;
    tempEdge.tag = edge.tag;
    return tempEdge;
  }

  protected Hook project(Hook hook) {
    Hook tempHook = new Hook(op.testOptions.exhaustiveTest);
    tempHook.start = hook.start;
    tempHook.end = hook.end;
    tempHook.state = gp.project(hook.state);
    tempHook.head = hook.head;
    tempHook.tag = hook.tag;
    tempHook.subState = gp.project(hook.subState);
    return tempHook;
  }

  public double oScore(Edge edge) {
    return scorer.oScore(project(edge));
  }

  public double iScore(Edge edge) {
    return scorer.iScore(project(edge));
  }

  public boolean oPossible(Hook hook) {
    return scorer.oPossible(project(hook));
  }

  public boolean iPossible(Hook hook) {
    return scorer.iPossible(project(hook));
  }

  public boolean parse(List words) {
    return scorer.parse(words);
  }

  public ProjectionScorer(Scorer scorer, GrammarProjection gp, Options op) {
    this.scorer = scorer;
    this.gp = gp;
    this.op = op;
  }

} // end ProjectionScorer