Examples of simplenlg.framework.ListElement

simplenlg.framework.ListElement

ListElement is used to define elements that can be grouped together and treated in a similar manner. The list element itself adds no additional meaning to the realisation. For example, the syntax processor takes a phrase element and produces a list element containing inflected word elements. Phrase elements only have meaning within the syntax processing while the morphology processor (the next in the sequence) needs to work with inflected words. Using the list element helps to keep the inflected word elements together.

There is no sorting within the list element and components are added in the order they are given.
@author D. Westwater, University of Aberdeen. @version 4.0

   * @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;
    Stack<NLGElement> vgComponents = null;
    Stack<NLGElement> mainVerbRealisation = new Stack<NLGElement>();
    Stack<NLGElement> auxiliaryRealisation = new Stack<NLGElement>();


    if (phrase != null) {
      vgComponents = createVerbGroup(parent, phrase);
      splitVerbGroup(vgComponents, mainVerbRealisation,
          auxiliaryRealisation);


      realisedElement = new ListElement();


      if (!phrase.hasFeature(InternalFeature.REALISE_AUXILIARY)
          || phrase.getFeatureAsBoolean(
              InternalFeature.REALISE_AUXILIARY).booleanValue()) {

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   *            the current realisation of the noun phrase.
   */
  private static void realiseComplements(SyntaxProcessor parent,
      PhraseElement phrase, ListElement realisedElement) {


    ListElement indirects = new ListElement();
    ListElement directs = new ListElement();
    ListElement unknowns = new ListElement();
    Object discourseValue = null;
    NLGElement currentElement = null;


    for (NLGElement complement : phrase
        .getFeatureAsElementList(InternalFeature.COMPLEMENTS)) {


      discourseValue = complement
          .getFeature(InternalFeature.DISCOURSE_FUNCTION);
      currentElement = parent.realise(complement);
      if (currentElement != null) {
        currentElement.setFeature(InternalFeature.DISCOURSE_FUNCTION,
            DiscourseFunction.COMPLEMENT);


        if (DiscourseFunction.INDIRECT_OBJECT.equals(discourseValue)) {
          indirects.addComponent(currentElement);
        } else if (DiscourseFunction.OBJECT.equals(discourseValue)) {
          directs.addComponent(currentElement);
        } else {
          unknowns.addComponent(currentElement);
        }
      }
    }
    if (!InterrogativeType.isIndirectObject(phrase
        .getFeature(Feature.INTERROGATIVE_TYPE))) {
      realisedElement.addComponents(indirects.getChildren());
    }
    if (!phrase.getFeatureAsBoolean(Feature.PASSIVE).booleanValue()) {
      if (!InterrogativeType.isObject(phrase
          .getFeature(Feature.INTERROGATIVE_TYPE))) {
        realisedElement.addComponents(directs.getChildren());
      }
      realisedElement.addComponents(unknowns.getChildren());
    }
  }

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      } else if (element instanceof PhraseElement) {
        realisedElement = realisePhraseElement((PhraseElement) element);


      } else if (element instanceof ListElement) {
        realisedElement = new ListElement();
        ((ListElement) realisedElement).addComponents(realise(element
            .getChildren()));


      } else if (element instanceof InflectedWordElement) {
        String baseForm = ((InflectedWordElement) element)

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   * @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) {
      realisedElement = new ListElement();


      realiseList(parent, realisedElement, phrase.getPreModifiers(),
          DiscourseFunction.PRE_MODIFIER);


      realiseHead(parent, phrase, realisedElement);

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    // AG: Change here: the original list structure is kept, i.e. rather
    // than taking the elements of the list and putting them in the realised
    // element, we now add the realised elements to a new list and put that
    // in the realised element list. This preserves constituency for
    // orthography and morphology processing later.
    ListElement realisedList = new ListElement();
    NLGElement currentElement = null;
    for (NLGElement eachElement : elementList) {
      currentElement = parent.realise(eachElement);


      if (currentElement != null) {
        currentElement.setFeature(InternalFeature.DISCOURSE_FUNCTION,
            function);
        // realisedElement.addComponent(currentElement);
        realisedList.addComponent(currentElement);
      }
    }


    if (!realisedList.getChildren().isEmpty()) {
      realisedElement.addComponent(realisedList);
    }
  }

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        case LIST_ITEM:
          if (components != null && components.size() > 0) {
            // recursively realise whatever's in the list item
            // NB: this will realise embedded lists within list
            // items
            realisedElement = new ListElement(realise(components));
          }
          break;


        default:
          ((DocumentElement) element)

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   * @param phrase
   *            the <code>PhraseElement</code> representation of the clause.
   * @return the <code>NLGElement</code> representing the realised clause.
   */
  static NLGElement realise(SyntaxProcessor parent, PhraseElement phrase) {
    ListElement realisedElement = null;
    NLGFactory phraseFactory = phrase.getFactory();
    NLGElement splitVerb = null;
    boolean interrogObj = false;


    if (phrase != null) {
      realisedElement = new ListElement();
      NLGElement verbElement = phrase
          .getFeatureAsElement(InternalFeature.VERB_PHRASE);


      if (verbElement == null) {
        verbElement = phrase.getHead();

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   */
  private static ListElement realiseSubjects(PhraseElement phrase,
      SyntaxProcessor parent) {


    NLGElement currentElement = null;
    ListElement realisedElement = new ListElement();


    for (NLGElement subject : phrase
        .getFeatureAsElementList(InternalFeature.SUBJECTS)) {


      subject.setFeature(InternalFeature.DISCOURSE_FUNCTION,
          DiscourseFunction.SUBJECT);
      if (Form.GERUND.equals(phrase.getFeature(Feature.FORM))
          && !phrase.getFeatureAsBoolean(
              Feature.SUPPRESS_GENITIVE_IN_GERUND).booleanValue()) {
        subject.setFeature(Feature.POSSESSIVE, true);
      }
      currentElement = parent.realise(subject);
      if (currentElement != null) {
        realisedElement.addComponent(currentElement);
      }
    }
    return realisedElement;
  }

View Full Code Here

   * @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);

View Full Code Here

      List<NLGElement> children = element.getChildren();
      ((DocumentElement) element).setComponents(realise(children));
      realisedElement = element;


    } else if (element instanceof ListElement) {
      realisedElement = new ListElement();
      ((ListElement) realisedElement).addComponents(realise(element
          .getChildren()));


    } else if (element instanceof CoordinatedPhraseElement) {
      List<NLGElement> children = element.getChildren();

View Full Code Here

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Related Classes of simplenlg.framework.ListElement

simplenlg.morphology.english.MorphologyProcessor

simplenlg.orthography.english.OrthographyProcessor

simplenlg.syntax.english.ClauseHelper

simplenlg.syntax.english.CoordinatedPhraseHelper

simplenlg.syntax.english.NounPhraseHelper

simplenlg.syntax.english.PhraseHelper

simplenlg.syntax.english.SyntaxProcessor

simplenlg.syntax.english.VerbPhraseHelper

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