Examples of simplenlg.framework.NLGElement

simplenlg.framework.NLGElement

NLGElement is the base class that all elements extend from. This is abstract and cannot therefore be instantiated itself. The additional element classes should be used to correctly identify the type of element required.

Realisation in SimpleNLG revolves around a tree structure. Each node in the tree is represented by a NLGElement, which in turn may have child nodes. The job of the processors is to replace various types of elements with other elements. The eventual goal, once all the processors have been run, is to produce a single string element representing the final realisation.

The features are stored in a Map of String (the feature name) and Object (the value of the feature).
@author D. Westwater, University of Aberdeen. @version 4.0

   *            the current realisation of the clause.
   */
  private static ListElement realiseSubjects(PhraseElement phrase,
      SyntaxProcessor parent) {


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


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

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   *         split the verb
   */
  private static NLGElement realiseInterrogative(PhraseElement phrase,
      SyntaxProcessor parent, ListElement realisedElement,
      NLGFactory phraseFactory, NLGElement verbElement) {
    NLGElement splitVerb = null;


    if (phrase.getParent() != null) {
      phrase.getParent().setFeature(InternalFeature.INTERROGATIVE, true);
    }

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   * Elide the leftmost consitutents in the phrase list, that is, all phrases
   * except the rightmost.
   */
  public void elideLeftmost() {
    for (int i = this.phrases.size() - 2; i >= 0; i--) {
      NLGElement phrase = this.phrases.get(i);


      if (phrase != null) {
        phrase.setFeature(Feature.ELIDED, true);
      }
    }
  }

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   *         split the verb
   */
  private static NLGElement realiseObjectWHInterrogative(String keyword,
      PhraseElement phrase, SyntaxProcessor parent,
      ListElement realisedElement, NLGFactory phraseFactory) {
    NLGElement splitVerb = null;
    realiseInterrogativeKeyWord(keyword, LexicalCategory.PRONOUN, parent, realisedElement, //$NON-NLS-1$
        phraseFactory);


    // if (!Tense.FUTURE.equals(phrase.getFeature(Feature.TENSE)) &&
    // !copular) {

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  private static void realiseInterrogativeKeyWord(String keyWord,
      LexicalCategory cat, SyntaxProcessor parent,
      ListElement realisedElement, NLGFactory phraseFactory) {


    if (keyWord != null) {
      NLGElement question = phraseFactory.createWord(keyWord, cat);
      NLGElement currentElement = parent.realise(question);


      if (currentElement != null) {
        realisedElement.addComponent(currentElement);
      }
    }

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   */
  public boolean lemmaIdentical() {
    boolean ident = !this.phrases.isEmpty();


    for (int i = 1; i < this.phrases.size() && ident; i++) {
      NLGElement left = this.phrases.get(i - 1);
      NLGElement right = this.phrases.get(i);
      
      
      if (left != null && right != null) {        
        NLGElement leftHead = left.getFeatureAsElement(InternalFeature.HEAD);
        NLGElement rightHead = right.getFeatureAsElement(InternalFeature.HEAD);        
        ident = (leftHead == rightHead || leftHead.equals(rightHead));
      }
    }


    return ident;

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   */
  private static NLGElement realiseYesNo(PhraseElement phrase,
      SyntaxProcessor parent, NLGElement verbElement,
      NLGFactory phraseFactory, ListElement realisedElement) {


    NLGElement splitVerb = null;


    if (!(verbElement instanceof VPPhraseSpec && VerbPhraseHelper
        .isCopular(((VPPhraseSpec) verbElement).getVerb()))
        && !phrase.getFeatureAsBoolean(Feature.PROGRESSIVE)
            .booleanValue()

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   */
  public boolean formIdentical() {
    boolean ident = !this.phrases.isEmpty();


    for (int i = 1; i < this.phrases.size() && ident; i++) {
      NLGElement left = this.phrases.get(i - 1);
      NLGElement right = this.phrases.get(i);


      if (left != null && right != null) {
        ident = left.equals(right);
      }
    }

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


    NLGElement currentElement = parent.realise(phrase
        .getFeatureAsElement(Feature.CUE_PHRASE));


    if (currentElement != null) {
      currentElement.setFeature(InternalFeature.DISCOURSE_FUNCTION,
          DiscourseFunction.CUE_PHRASE);
      realisedElement.addComponent(currentElement);
    }
  }

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


    NLGElement currentElement;


    if (ClauseStatus.SUBORDINATE.equals(phrase
        .getFeature(InternalFeature.CLAUSE_STATUS))
        && !phrase
            .getFeatureAsBoolean(Feature.SUPRESSED_COMPLEMENTISER)

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Related Classes of simplenlg.framework.NLGElement

simplenlg.aggregation.AggregationHelper

simplenlg.aggregation.AggregationRule

simplenlg.aggregation.Aggregator

simplenlg.aggregation.ClauseCoordinationRule

simplenlg.aggregation.FunctionalSet

simplenlg.aggregation.NewAggregator

simplenlg.aggregation.PhraseChecker

simplenlg.aggregation.PhraseSet

simplenlg.features.Tense

simplenlg.format.english.TextFormatter

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