/**
* Pushes the front verb onto the stack of verb components.
*
* @param phrase
* the <code>PhraseElement</code> representing this noun phrase.
* @param vgComponents
* the stack of verb components in the verb group.
* @param frontVG
* the first verb in the verb group.
* @param formValue
* the <code>Form</code> of the phrase.
* @param interrogative
* <code>true</code> if the phrase is interrogative.
*/
private static void pushFrontVerb(PhraseElement phrase,
Stack <INLGElement> vgComponents, INLGElement frontVG,
object formValue, bool interrogative)
{
var interrogType = phrase.getFeature(Feature.INTERROGATIVE_TYPE.ToString());
if (Form.GERUND.Equals(formValue))
{
frontVG.setFeature(Feature.FORM.ToString(), Form.PRESENT_PARTICIPLE);
vgComponents.push(frontVG);
}
else if (Form.PAST_PARTICIPLE.Equals(formValue))
{
frontVG.setFeature(Feature.FORM.ToString(), Form.PAST_PARTICIPLE);
vgComponents.push(frontVG);
}
else if (Form.PRESENT_PARTICIPLE.Equals(formValue))
{
frontVG.setFeature(Feature.FORM.ToString(), Form.PRESENT_PARTICIPLE);
vgComponents.push(frontVG);
}
else if ((!(formValue == null || Form.NORMAL.Equals(formValue)) || interrogative) &&
!isCopular(phrase.getHead()) && vgComponents.isEmpty())
{
// AG: fix below: if interrogative, only set non-morph feature in
// case it's not WHO_SUBJECT OR WHAT_SUBJECT
if (!(InterrogativeType.WHO_SUBJECT.Equals(interrogType) || InterrogativeType.WHAT_SUBJECT
.Equals(interrogType)))
{
frontVG.setFeature(InternalFeature.NON_MORPH.ToString(), true);
}
vgComponents.push(frontVG);
}
else
{
var numToUse = determineNumber(phrase.getParent(),
phrase);
frontVG.setFeature(Feature.TENSE.ToString(), phrase.getFeatureTense(Feature.TENSE.ToString()));
frontVG.setFeature(Feature.PERSON.ToString(), phrase
.getFeature(Feature.PERSON.ToString()));
frontVG.setFeature(Feature.NUMBER.ToString(), numToUse);
//don't push the front VG if it's a negated interrogative WH object question
if (!(phrase.getFeatureAsBoolean(Feature.NEGATED.ToString()) && (InterrogativeType.WHO_OBJECT
.Equals(interrogType) ||
InterrogativeType.WHAT_OBJECT
.Equals(interrogType))))
{
vgComponents.push(frontVG);
}
}
}
/**
* This is the main controlling method for handling interrogative clauses.
* The actual steps taken are dependent on the type of question being asked.
* The method also determines if there is a subject that will split the verb
* group of the clause. For example, the clause
* <em>the man <b>should give</b> the woman the flower</em> has the verb
* group indicated in <b>bold</b>. The phrase is rearranged as yes/no
* question as
* <em><b>should</b> the man <b>give</b> the woman the flower</em> with the
* subject <em>the man</em> splitting the verb group.
*
* @param phrase
* the <code>PhraseElement</code> representing this clause.
* @param parent
* the parent <code>SyntaxProcessor</code> that will do the
* realisation of the complementiser.
* @param realisedElement
* the current realisation of the clause.
* @param phraseFactory
* the phrase factory to be used.
* @param verbElement
* the <code>NLGElement</code> representing the verb phrase for
* this clause.
* @return an <code>NLGElement</code> representing a subject that should
* split the verb
*/
private static INLGElement realiseInterrogative(PhraseElement phrase,
SyntaxProcessor parent,
ListElement realisedElement,
NLGFactory phraseFactory,
INLGElement verbElement)
{
INLGElement splitVerb = null;
if (phrase.getParent() != null)
{
phrase.getParent().setFeature(InternalFeature.INTERROGATIVE.ToString(), true);
}
var type = phrase.getFeature(Feature.INTERROGATIVE_TYPE.ToString());
if (type is InterrogativeType)
{
switch ((InterrogativeType)type)
{
case InterrogativeType.YES_NO:
splitVerb = realiseYesNo(phrase, parent, verbElement, phraseFactory, realisedElement);
break;
case InterrogativeType.WHO_SUBJECT:
case InterrogativeType.WHAT_SUBJECT:
realiseInterrogativeKeyWord(((InterrogativeType)type).getString(),
new LexicalCategory_PRONOUN(),
parent,
realisedElement,
phraseFactory);
phrase.removeFeature(InternalFeature.SUBJECTS.ToString());
break;
case InterrogativeType.HOW_MANY:
realiseInterrogativeKeyWord("how", new LexicalCategory_PRONOUN(), parent, realisedElement,
phraseFactory);
realiseInterrogativeKeyWord("many", new LexicalCategory_ADVERB(), parent, realisedElement,
phraseFactory);
break;
case InterrogativeType.HOW:
case InterrogativeType.WHY:
case InterrogativeType.WHERE:
case InterrogativeType.WHO_OBJECT:
case InterrogativeType.WHO_INDIRECT_OBJECT:
case InterrogativeType.WHAT_OBJECT:
splitVerb = realiseObjectWHInterrogative(((InterrogativeType)type).getString(),
phrase,
parent,
realisedElement,
phraseFactory);
break;
case InterrogativeType.HOW_PREDICATE:
splitVerb = realiseObjectWHInterrogative("how", phrase, parent, realisedElement, phraseFactory);
break;
default:
break;
}
}
return(splitVerb);
}