/**
* 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;
}
/**
* 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;
}
/**
* 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);
}
}
}
/**
* 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);
}
}
/**
* 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;
}