//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void apply(org.maltparser.parser.history.action.GuideUserAction currentAction, org.maltparser.parser.ParserConfiguration config) throws org.maltparser.core.exception.MaltChainedException
public override void apply(GuideUserAction currentAction, ParserConfiguration config)
{
PlanarConfig planarConfig = (PlanarConfig)config;
Stack <DependencyNode> stack = planarConfig.Stack;
Stack <DependencyNode> input = planarConfig.Input;
currentAction.getAction(actionContainers);
Edge e = null;
switch (transActionContainer.ActionCode)
{
case LEFTARC:
e = planarConfig.DependencyStructure.AddDependencyEdge(input.Peek().Index, stack.Peek().Index);
addEdgeLabels(e);
break;
case RIGHTARC:
e = planarConfig.DependencyStructure.AddDependencyEdge(stack.Peek().Index, input.Peek().Index);
addEdgeLabels(e);
break;
case REDUCE:
stack.Pop();
break;
default: //SHIFT
stack.Push(input.Pop());
break;
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public org.maltparser.parser.history.action.GuideUserAction predict(org.maltparser.core.syntaxgraph.DependencyStructure gold, org.maltparser.parser.ParserConfiguration config) throws org.maltparser.core.exception.MaltChainedException
public override GuideUserAction predict(IDependencyStructure gold, ParserConfiguration config)
{
PlanarConfig planarConfig = (PlanarConfig)config;
IDependencyStructure dg = planarConfig.DependencyGraph;
DependencyNode stackPeek = planarConfig.Stack.Peek();
int stackPeekIndex = stackPeek.Index;
int inputPeekIndex = planarConfig.Input.Peek().Index;
if (!stackPeek.Root && gold.GetTokenNode(stackPeekIndex).Head.Index == inputPeekIndex && !checkIfArcExists(dg, inputPeekIndex, stackPeekIndex))
{
return(updateActionContainers(Planar.LEFTARC, gold.GetTokenNode(stackPeekIndex).HeadEdge.LabelSet));
}
else if (gold.GetTokenNode(inputPeekIndex).Head.Index == stackPeekIndex && !checkIfArcExists(dg, stackPeekIndex, inputPeekIndex))
{
return(updateActionContainers(Planar.RIGHTARC, gold.GetTokenNode(inputPeekIndex).HeadEdge.LabelSet));
}
else if (gold.GetTokenNode(inputPeekIndex).hasLeftDependent() && gold.GetTokenNode(inputPeekIndex).LeftmostDependent.Index < stackPeekIndex)
{
return(updateActionContainers(Planar.REDUCE, null));
}
else if (gold.GetTokenNode(inputPeekIndex).Head.Index < stackPeekIndex && (!gold.GetTokenNode(inputPeekIndex).Head.Root || planarConfig.getRootHandling() == PlanarConfig.NORMAL))
{
return(updateActionContainers(Planar.REDUCE, null));
}
else
{
return(updateActionContainers(Planar.SHIFT, null));
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void initialize(org.maltparser.parser.ParserConfiguration parserConfiguration) throws org.maltparser.core.exception.MaltChainedException
public virtual void initialize(ParserConfiguration parserConfiguration)
{
if (parserConfiguration != null)
{
PlanarConfig planarConfig = (PlanarConfig)parserConfiguration;
Stack <DependencyNode> sourceStack = planarConfig.Stack;
Stack <DependencyNode> sourceInput = planarConfig.Input;
DependencyGraph = planarConfig.DependencyGraph;
for (int i = 0, n = sourceStack.Count; i < n; i++)
{
//JAVA TO C# CONVERTER TODO TASK: There is no direct .NET Stack equivalent to Java Stack methods based on internal indexing:
stack.Push(dependencyGraph.GetDependencyNode(sourceStack.get(i).Index));
}
for (int i = 0, n = sourceInput.Count; i < n; i++)
{
//JAVA TO C# CONVERTER TODO TASK: There is no direct .NET Stack equivalent to Java Stack methods based on internal indexing:
input.Push(dependencyGraph.GetDependencyNode(sourceInput.get(i).Index));
}
}
else
{
stack.Push(dependencyGraph.DependencyRoot);
for (int i = dependencyGraph.HighestTokenIndex; i > 0; i--)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.maltparser.core.syntaxgraph.node.DependencyNode node = dependencyGraph.getDependencyNode(i);
DependencyNode node = dependencyGraph.GetDependencyNode(i);
if (node != null && !node.hasHead())
{
input.Push(node);
}
}
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public org.maltparser.parser.history.action.GuideUserAction getDeterministicAction(org.maltparser.parser.history.GuideUserHistory history, org.maltparser.parser.ParserConfiguration config) throws org.maltparser.core.exception.MaltChainedException
public override GuideUserAction getDeterministicAction(GuideUserHistory history, ParserConfiguration config)
{
PlanarConfig planarConfig = (PlanarConfig)config;
if (planarConfig.getRootHandling() != PlanarConfig.NORMAL && planarConfig.Stack.Peek().Root)
{
return(updateActionContainers(history, SHIFT, null));
}
return(null);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private void update(PlanarConfig config) throws org.maltparser.core.exception.MaltChainedException
private void update(PlanarConfig config)
{
if (subFunction == PlanarSubFunction.STACK)
{
address.Address = config.getStackNode(index);
}
else if (subFunction == PlanarSubFunction.INPUT)
{
address.Address = config.getInputNode(index);
}
else
{
address.Address = null;
}
}
public override bool Equals(object obj)
{
if (this == obj)
{
return(true);
}
if (obj == null)
{
return(false);
}
if (GetType() != obj.GetType())
{
return(false);
}
PlanarConfig that = (PlanarConfig)obj;
if (stack.Count != that.Stack.Count)
{
return(false);
}
if (input.Count != that.Input.Count)
{
return(false);
}
if (dependencyGraph.NEdges() != that.DependencyGraph.NEdges())
{
return(false);
}
for (int i = 0; i < stack.Count; i++)
{
//JAVA TO C# CONVERTER TODO TASK: There is no direct .NET Stack equivalent to Java Stack methods based on internal indexing:
if (stack.get(i).Index != that.Stack.get(i).Index)
{
return(false);
}
}
for (int i = 0; i < input.Count; i++)
{
//JAVA TO C# CONVERTER TODO TASK: There is no direct .NET Stack equivalent to Java Stack methods based on internal indexing:
if (input.get(i).Index != that.Input.get(i).Index)
{
return(false);
}
}
return(dependencyGraph.Edges.Equals(that.DependencyGraph.Edges));
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public boolean permissible(org.maltparser.parser.history.action.GuideUserAction currentAction, org.maltparser.parser.ParserConfiguration config) throws org.maltparser.core.exception.MaltChainedException
public override bool permissible(GuideUserAction currentAction, ParserConfiguration config)
{
currentAction.getAction(actionContainers);
int trans = transActionContainer.ActionCode;
PlanarConfig planarConfig = (PlanarConfig)config;
DependencyNode stackPeek = planarConfig.Stack.Peek();
DependencyNode inputPeek = planarConfig.Input.Peek();
IDependencyStructure dg = planarConfig.DependencyGraph;
//int rootHandling = planarConfig.getRootHandling();
bool singleHeadConstraint = planarConfig.requiresSingleHead();
bool noCoveredRootsConstraint = planarConfig.requiresNoCoveredRoots();
bool acyclicityConstraint = planarConfig.requiresAcyclicity();
bool connectednessConstraintOnReduce = planarConfig.requiresConnectednessCheckOnReduce();
bool connectednessConstraintOnShift = planarConfig.requiresConnectednessCheckOnShift();
if ((trans == LEFTARC || trans == RIGHTARC) && !ActionContainersLabeled)
{
return(false);
}
//if ((trans == LEFTARC || trans == REDUCE) && stackPeek.isRoot()) {
// return false;
//}
if (trans == LEFTARC)
{
//avoid making root child of something
if (stackPeek.Root)
{
return(false);
}
//enforce single-head constraint if present
if (stackPeek.hasHead() && singleHeadConstraint)
{
return(false);
}
//avoid two links being created from and to the same node
if (stackPeek.hasHead() && dg.GetTokenNode(stackPeek.Index).Head.Index == inputPeek.Index)
{
return(false);
}
//enforce acyclicity constraint if present
if (acyclicityConstraint && stackPeek.findComponent().Index == inputPeek.findComponent().Index)
{
return(false);
}
}
if (trans == RIGHTARC)
{
//enforce single-head constraint if present
if (inputPeek.hasHead() && singleHeadConstraint)
{
return(false);
}
//avoid two links being created from and to the same node
if (inputPeek.hasHead() && dg.GetTokenNode(inputPeek.Index).Head.Index == stackPeek.Index)
{
return(false);
}
//enforce acyclicity constraint if present
if (acyclicityConstraint && stackPeek.findComponent().Index == inputPeek.findComponent().Index)
{
return(false);
}
}
if (trans == REDUCE)
{
//do not reduce the dummy root
if (stackPeek.Root)
{
return(false);
}
//enforce no-covered-roots constraint if present
if (!stackPeek.hasHead() && noCoveredRootsConstraint)
{
return(false);
}
//TODO does this line still make sense? (from Nivre arc-eager)
//if ( !stackPeek.hasHead() && rootHandling == PlanarConfig.STRICT )
// return false;
//enforce connectedness constraint if present
if (connectednessConstraintOnReduce)
{
bool path1 = (stackPeek.findComponent().Index == inputPeek.findComponent().Index);
bool path2;
if (planarConfig.Stack.Count < 2)
{
path2 = false;
}
else
{
//JAVA TO C# CONVERTER TODO TASK: There is no direct .NET Stack equivalent to Java Stack methods based on internal indexing:
DependencyNode stackPrev = planarConfig.Stack.get(planarConfig.Stack.Count - 2);
path2 = stackPrev.findComponent().Index == stackPeek.findComponent().Index;
}
return(path1 || path2);
}
}
if (trans == SHIFT)
{
if (connectednessConstraintOnShift && planarConfig.Input.Count == 1) //last word
{
bool path = (planarConfig.DependencyGraph.GetTokenNode(1).findComponent().Index == inputPeek.findComponent().Index); //require connection to 1st
return(path);
}
}
return(true);
}
