public virtual Item getItem(string relation, float time)
{
string pathAndFeature;
if (String.instancehelper_equals(relation, "Word"))
{
pathAndFeature = "R:SylStructure.parent.parent.R:Word";
}
else
{
if (!String.instancehelper_equals(relation, "Token"))
{
string text = new StringBuilder().append("Utterance.getItem(): relation cannot be ").append(relation).toString();
throw new IllegalArgumentException(text);
}
pathAndFeature = "R:SylStructure.parent.parent.R:Token.parent";
}
PathExtractor pathExtractor = new PathExtractor(pathAndFeature, false);
Item item = Utterance.getItem(this.getRelation(relation), time);
if (item != null)
{
return(pathExtractor.findItem(item));
}
return(null);
}
internal Relation(string text, Utterance utterance)
{
this.name = text;
this.owner = utterance;
this.head = null;
this.tail = null;
}
private static Item findFromFront(Relation relation, float num)
{
Item item = relation.getHead();
while (item != null && num > Utterance.getSegmentEnd(item))
{
item = item.getNext();
}
return(item);
}
private static Item findFromEnd(Relation relation, float num)
{
Item item = relation.getTail();
while (item != null && Utterance.getSegmentEnd(item) > num)
{
item = item.getPrevious();
}
if (item != relation.getTail())
{
item = item.getNext();
}
return(item);
}
private static Item getItem(Relation relation, float num)
{
Item tail = relation.getTail();
float segmentEnd = Utterance.getSegmentEnd(tail);
if (num < 0f || segmentEnd < num)
{
return(null);
}
if (segmentEnd - num > num)
{
return(Utterance.findFromFront(relation, num));
}
return(Utterance.findFromEnd(relation, num));
}
public static WordRelation createWordRelation(Utterance utterance, USEnglishTokenizer tokenToWords)
{
Relation relation = utterance.createRelation("Word");
return(new WordRelation(relation, tokenToWords));
}