public override void ApplyRhs(Match <Word, ShapeNode> targetMatch, Range <ShapeNode> range,
VariableBindings varBindings)
{
ShapeNode curNode = range.Start;
foreach (PatternNode <Word, ShapeNode> node in _rhs.Children.GetNodes(targetMatch.Matcher.Direction))
{
if (targetMatch.Input.Shape.Count == 256)
{
throw new InfiniteLoopException("An epenthesis rewrite rule is stuck in an infinite loop.");
}
var constraint = (Constraint <Word, ShapeNode>)node;
FeatureStruct fs = constraint.FeatureStruct.Clone();
if (varBindings != null)
{
fs.ReplaceVariables(varBindings);
}
curNode = targetMatch.Input.Shape.AddAfter(curNode, fs);
if (IsIterative)
{
curNode.SetDirty(true);
}
}
MarkSuccessfulApply(targetMatch.Input);
}
public override void ApplyRhs(Match <Word, ShapeNode> targetMatch, Span <ShapeNode> span, VariableBindings varBindings)
{
ShapeNode curNode = span.End;
foreach (PatternNode <Word, ShapeNode> node in _rhs.Children)
{
var constraint = (Constraint <Word, ShapeNode>)node;
FeatureStruct fs = constraint.FeatureStruct.DeepClone();
if (varBindings != null)
{
fs.ReplaceVariables(varBindings);
}
curNode = targetMatch.Input.Shape.AddAfter(curNode, fs);
if (IsIterative)
{
curNode.SetDirty(true);
}
}
ShapeNode[] nodes = targetMatch.Input.Shape.GetNodes(span).ToArray();
for (int i = 0; i < _targetCount; i++)
{
nodes[i].SetDeleted(true);
}
MarkSuccessfulApply(targetMatch.Input);
}
private void Unapply(Match <Word, ShapeNode> targetMatch, Range <ShapeNode> range, VariableBindings varBindings)
{
ShapeNode curNode = range.Start;
for (int i = 0; i < _targetCount; i++)
{
curNode.Annotation.Optional = true;
curNode.SetDirty(true);
curNode = curNode.Next;
}
}
private void Unapply(Match <Word, ShapeNode> targetMatch, Span <ShapeNode> span, VariableBindings varBindings)
{
int i = 0;
foreach (Constraint <Word, ShapeNode> constraint in _analysisRhs.Children.Cast <Constraint <Word, ShapeNode> >())
{
ShapeNode node = targetMatch.GroupCaptures["target" + i].Span.GetStart(targetMatch.Matcher.Direction);
FeatureStruct fs = node.Annotation.FeatureStruct.DeepClone();
fs.PriorityUnion(constraint.FeatureStruct);
node.Annotation.FeatureStruct.Union(fs, varBindings);
node.SetDirty(true);
i++;
}
}