private IEnumerable <IClause> TryFindClauses()
{
var possibleClauses = AdTree.GetAdTreesInAdTreeOrder().Where(x => AttributesModel.IsU(x.Morpheme.Attributes));
// If U grammar character is present then there can be multiple clauses.
if (possibleClauses.Any())
{
foreach (var possibleClause in possibleClauses)
{
var isClauseOnRight = Clause.IsClause(possibleClause.Right, AttributesModel);
if (isClauseOnRight)
{
var clauseAdTree = possibleClause.Right.MakeDeepCopy();
var clause = Factory.CreateClause(clauseAdTree, 0);
yield return(clause);
}
var isClauseOnLeft = Clause.IsClause(possibleClause.Left, AttributesModel);
if (isClauseOnLeft)
{
var clauseAdTree = possibleClause.Left.MakeDeepCopy();
var clause = Factory.CreateClause(clauseAdTree, 0);
yield return(clause);
}
}
}
else
{
if (Clause.IsClause(AdTree, AttributesModel))
{
var clause = Factory.CreateClause(AdTree, StructureAttributes.Sentence.SimpleSentence);
yield return(clause);
}
}
}
private ITerm TryGetPredicate()
{
ITerm result = null;
var verb = AdTree.GetRightSequence().FirstOrDefault(x => AttributesModel.IsVerb(x.Morpheme.Attributes));
if (verb != null)
{
IAdTree predicateAdTree;
var verbValencies = AttributesModel.GetNumberOfValencies(verb.Morpheme.Attributes);
if (verbValencies > 0)
{
predicateAdTree = verb.GetSequenceToRoot()
.First(x => x.AdPosition == null || AttributesModel.IsU(x.AdPosition.Morpheme.Attributes))
.MakeDeepCopy();
// Remove the subject (i.e. remove the sub-adtree on the first valency)
var firstValency = predicateAdTree.GetRightSequence().FirstOrDefault(x => x.Pattern.ValencyPosition == 1);
if (firstValency != null)
{
firstValency.Left = null;
}
}
else
{
predicateAdTree = verb.MakeDeepCopy();
result = Factory.CreateTerm(verb, StructureAttributes.Term.Predicate);
}
result = Factory.CreateTerm(predicateAdTree, StructureAttributes.Term.Predicate);
}
return(result);
}
