Esempio n. 1
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  /**
   * The main method for realising noun phrases.
   *
   * @param parent the <code>SyntaxProcessor</code> that called this method.
   * @param phrase the <code>PhraseElement</code> to be realised.
   * @return the realised <code>NLGElement</code>.
   */
  static NLGElement realise(SyntaxProcessor parent, PhraseElement phrase) {
    ListElement realisedElement = null;

    if (phrase != null && !phrase.getFeatureAsBoolean(Feature.ELIDED).booleanValue()) {
      realisedElement = new ListElement();

      if (phrase.getFeatureAsBoolean(Feature.PRONOMINAL).booleanValue()) {
        realisedElement.addComponent(createPronoun(parent, phrase));

      } else {
        realiseSpecifier(phrase, parent, realisedElement);
        realisePreModifiers(phrase, parent, realisedElement);
        realiseHeadNoun(phrase, parent, realisedElement);
        PhraseHelper.realiseList(
            parent,
            realisedElement,
            phrase.getFeatureAsElementList(InternalFeature.COMPLEMENTS),
            DiscourseFunction.COMPLEMENT);

        PhraseHelper.realiseList(
            parent, realisedElement, phrase.getPostModifiers(), DiscourseFunction.POST_MODIFIER);
      }
    }

    return realisedElement;
  }
Esempio n. 2
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  /**
   * Realises the pre-modifiers of the noun phrase. Before being realised, pre-modifiers undergo
   * some basic sorting based on adjective ordering.
   *
   * @param phrase the <code>PhraseElement</code> representing this noun phrase.
   * @param parent the parent <code>SyntaxProcessor</code> that will do the realisation of the
   *     complementiser.
   * @param realisedElement the current realisation of the noun phrase.
   */
  private static void realisePreModifiers(
      PhraseElement phrase, SyntaxProcessor parent, ListElement realisedElement) {

    List<NLGElement> preModifiers = phrase.getPreModifiers();
    if (phrase.getFeatureAsBoolean(Feature.ADJECTIVE_ORDERING).booleanValue()) {
      preModifiers = sortNPPreModifiers(preModifiers);
    }
    PhraseHelper.realiseList(parent, realisedElement, preModifiers, DiscourseFunction.PRE_MODIFIER);
  }
  /**
   * Realises a phrase element.
   *
   * @param phrase the element to be realised
   * @return the realised element.
   */
  private NLGElement realisePhraseElement(PhraseElement phrase) {
    NLGElement realisedElement = null;

    if (phrase != null) {
      ElementCategory category = phrase.getCategory();

      if (category instanceof PhraseCategory) {
        switch ((PhraseCategory) category) {
          case CLAUSE:
            realisedElement = ClauseHelper.realise(this, phrase);
            break;

          case NOUN_PHRASE:
            realisedElement = NounPhraseHelper.realise(this, phrase);
            break;

          case VERB_PHRASE:
            realisedElement = VerbPhraseHelper.realise(this, phrase);
            break;

          case PREPOSITIONAL_PHRASE:
          case ADJECTIVE_PHRASE:
          case ADVERB_PHRASE:
            realisedElement = PhraseHelper.realise(this, phrase);
            break;

          default:
            realisedElement = phrase;
            break;
        }
      }
    }
    return realisedElement;
  }
Esempio n. 4
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  /**
   * Realises the specifier of the noun phrase.
   *
   * @param phrase the <code>PhraseElement</code> representing this noun phrase.
   * @param parent the parent <code>SyntaxProcessor</code> that will do the realisation of the
   *     complementiser.
   * @param realisedElement the current realisation of the noun phrase.
   */
  private static void realiseSpecifier(
      PhraseElement phrase, SyntaxProcessor parent, ListElement realisedElement) {
    NLGElement specifierElement = phrase.getFeatureAsElement(InternalFeature.SPECIFIER);

    if (specifierElement != null
        && !phrase.getFeatureAsBoolean(InternalFeature.RAISED).booleanValue()
        && !phrase.getFeatureAsBoolean(Feature.ELIDED).booleanValue()) {

      if (!specifierElement.isA(LexicalCategory.PRONOUN)) {
        specifierElement.setFeature(Feature.NUMBER, phrase.getFeature(Feature.NUMBER));
      }

      NLGElement currentElement = parent.realise(specifierElement);

      if (currentElement != null) {
        currentElement.setFeature(InternalFeature.DISCOURSE_FUNCTION, DiscourseFunction.SPECIFIER);
        realisedElement.addComponent(currentElement);
      }
    }
  }
Esempio n. 5
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  /**
   * Realises the head noun of the noun phrase.
   *
   * @param phrase the <code>PhraseElement</code> representing this noun phrase.
   * @param parent the parent <code>SyntaxProcessor</code> that will do the realisation of the
   *     complementiser.
   * @param realisedElement the current realisation of the noun phrase.
   */
  private static void realiseHeadNoun(
      PhraseElement phrase, SyntaxProcessor parent, ListElement realisedElement) {
    NLGElement headElement = phrase.getHead();

    if (headElement != null) {
      headElement.setFeature(Feature.ELIDED, phrase.getFeature(Feature.ELIDED));
      headElement.setFeature(LexicalFeature.GENDER, phrase.getFeature(LexicalFeature.GENDER));
      headElement.setFeature(InternalFeature.ACRONYM, phrase.getFeature(InternalFeature.ACRONYM));
      headElement.setFeature(Feature.NUMBER, phrase.getFeature(Feature.NUMBER));
      headElement.setFeature(Feature.PERSON, phrase.getFeature(Feature.PERSON));
      headElement.setFeature(Feature.POSSESSIVE, phrase.getFeature(Feature.POSSESSIVE));
      headElement.setFeature(Feature.PASSIVE, phrase.getFeature(Feature.PASSIVE));
      NLGElement currentElement = parent.realise(headElement);
      currentElement.setFeature(InternalFeature.DISCOURSE_FUNCTION, DiscourseFunction.SUBJECT);
      realisedElement.addComponent(currentElement);
    }
  }
Esempio n. 6
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  /**
   * Creates the appropriate pronoun if the subject of the noun phrase is pronominal.
   *
   * @param parent the parent <code>SyntaxProcessor</code> that will do the realisation of the
   *     complementiser.
   * @param phrase the <code>PhraseElement</code> representing this noun phrase.
   * @return the <code>NLGElement</code> representing the pronominal.
   */
  private static NLGElement createPronoun(SyntaxProcessor parent, PhraseElement phrase) {

    String pronoun = "it"; // $NON-NLS-1$
    NLGFactory phraseFactory = phrase.getFactory();
    Object personValue = phrase.getFeature(Feature.PERSON);

    if (Person.FIRST.equals(personValue)) {
      pronoun = "I"; // $NON-NLS-1$
    } else if (Person.SECOND.equals(personValue)) {
      pronoun = "you"; // $NON-NLS-1$
    } else {
      Object genderValue = phrase.getFeature(LexicalFeature.GENDER);
      if (Gender.FEMININE.equals(genderValue)) {
        pronoun = "she"; // $NON-NLS-1$
      } else if (Gender.MASCULINE.equals(genderValue)) {
        pronoun = "he"; // $NON-NLS-1$
      }
    }
    // AG: createWord now returns WordElement; so we embed it in an
    // inflected word element here
    NLGElement element;
    NLGElement proElement = phraseFactory.createWord(pronoun, LexicalCategory.PRONOUN);

    if (proElement instanceof WordElement) {
      element = new InflectedWordElement((WordElement) proElement);
      element.setFeature(
          LexicalFeature.GENDER, ((WordElement) proElement).getFeature(LexicalFeature.GENDER));
      // Ehud - also copy over person
      element.setFeature(Feature.PERSON, ((WordElement) proElement).getFeature(Feature.PERSON));
    } else {
      element = proElement;
    }

    element.setFeature(InternalFeature.DISCOURSE_FUNCTION, DiscourseFunction.SPECIFIER);
    element.setFeature(Feature.POSSESSIVE, phrase.getFeature(Feature.POSSESSIVE));
    element.setFeature(Feature.NUMBER, phrase.getFeature(Feature.NUMBER));

    if (phrase.hasFeature(InternalFeature.DISCOURSE_FUNCTION)) {
      element.setFeature(
          InternalFeature.DISCOURSE_FUNCTION,
          phrase.getFeature(InternalFeature.DISCOURSE_FUNCTION));
    }

    return element;
  }