// Era privado, pero al sacar esta clase fuera ahora es público
public static ISet <Literal> getLiterals(Sentence disjunctiveSentence)
{
ISet <Literal> result = new HashSet <Literal>();
LiteralCollector literalCollector = new LiteralCollector();
result = disjunctiveSentence.Accept(literalCollector, result);
return(result);
}
public override ISet <Clause> VisitBinarySentence(ComplexSentence s, ISet <Clause> arg)
{
if (s.IsAndSentence())
{
s.GetSimplerSentence(0).Accept(this, arg);
s.GetSimplerSentence(1).Accept(this, arg);
}
else if (s.IsOrSentence())
{
IList <Literal> literals = new List <Literal>(LiteralCollector.getLiterals(s)); //ArrayList
arg.Add(new Clause(literals));
}
else
{
throw new ArgumentException("Sentence is not in CNF: " + s); //IllegalArgumentException
}
return(arg);
}