/// <summary>
/// Binds the RHS.
/// </summary>
private void BindRHS(List <Activation> items)
{
int lhsCnt = _lhs.Count - 1;
foreach (Activation act in items)
{
foreach (RightHandSideCondition condition in _rhs)
{
WME newfact = new WME();
for (int f = 0; f < 3; f++)
{
Term term = condition.Fields[f];
if (term.TermType == TermType.Variable)
{
for (int i = lhsCnt; i >= 0; i--)
{
Condition rh = _lhs[i];
if (rh.ConditionType == ConditionType.Positive)
{
int pos = rh.Contains(term);
if (pos >= 0)
{
newfact.Fields[f] = act.InferredFact[pos];
i = -1;
}
}
}
}
else
{
newfact.Fields[f] = term;
}
}
Activation newact = new Activation(newfact, condition.ConditionType);
if (_inferredFacts.Contains(newact) == false)
{
_inferredFacts.Add(newact);
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ActivationEvent"/> class.
/// </summary>
/// <param name="activation">The activation.</param>
public ActivationEvent(Activation activation)
{
Activation = activation;
}
/// <summary>
/// Initializes a new instance of the <see cref="ActivationEvent"/> class.
/// </summary>
/// <param name="activation">The activation.</param>
public ActivationEvent(Activation activation)
{
Activation = activation;
}
/// <summary>
/// P_node_activations the specified node.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="tok">The tok.</param>
/// <param name="w">The w.</param>
private void p_node_activation(ProductionNode node, Token tok, WME w)
{
Token new_token = make_token(node, tok, w);
node.Items.AddToFront(new_token);
int lhsCnt = node.Production.Lhs.Count - 1;
foreach (RightHandSideCondition rhsCondition in node.Production.Rhs)
{
WME newfact = new WME();
for (int f = 0; f < 3; f++)
{
Term term = rhsCondition.Fields[f];
if (term.TermType == TermType.Variable)
{
for (int i = lhsCnt; i >= 0; i--)
{
Condition lhsCondition = node.Production.Lhs[i];
if (lhsCondition.ConditionType == ConditionType.Positive)
{
int pos = lhsCondition.Contains(term);
if (pos >= 0)
{
Token tok2 = new_token.GetTokenUp(lhsCnt - i);
newfact.Fields[f] = tok2.WME[pos];
i = -1;
}
}
}
}
else
{
newfact.Fields[f] = term;
}
}
Activation newact = new Activation(newfact, rhsCondition.ConditionType);
if (node.Production.InferredFacts.Contains(newact) == false)
{
node.Production.InferredFacts.Add(newact);
}
}
}
/// <summary>
/// Binds the RHS.
/// </summary>
private void BindRHS(List<Activation> items)
{
int lhsCnt = _lhs.Count - 1;
foreach (Activation act in items)
{
foreach (RightHandSideCondition condition in _rhs)
{
WME newfact = new WME();
for (int f = 0; f < 3; f++)
{
Term term = condition.Fields[f];
if (term.TermType == TermType.Variable)
{
for (int i = lhsCnt; i >= 0; i--)
{
Condition rh = _lhs[i];
if (rh.ConditionType == ConditionType.Positive)
{
int pos = rh.Contains(term);
if (pos >= 0)
{
newfact.Fields[f] = act.InferredFact[pos];
i = -1;
}
}
}
}
else
{
newfact.Fields[f] = term;
}
}
Activation newact = new Activation(newfact, condition.ConditionType);
if (_inferredFacts.Contains(newact) == false)
{
_inferredFacts.Add(newact);
}
}
}
}
