private bool ContainsNaNHelper(MathFuncNode node)
{
for (int i = 0; i < node.Childs.Count; i++)
{
if (ContainsNaNHelper(node.Childs[i]))
{
return(true);
}
}
CalculatedNode calcNode = node as CalculatedNode;
if (calcNode != null && double.IsNaN(calcNode.DoubleValue))
{
return(true);
}
else
{
return(false);
}
}
private MathFuncNode MakeSubstitution(MathFuncNode node)
{
int ind = -1;
for (int j = 0; j < LeftNode.Childs.Count; j++)
{
if (LeftNode.Childs[j].Name == node.Name)
{
ind = j;
break;
}
}
if (ind != -1)
{
if (_currentFunc.Childs[ind].IsTerminal)
{
return(_currentFunc.Childs[ind]);
}
else
{
return(new FuncNode((FuncNode)_currentFunc.Childs[ind]));
}
}
MathFuncNode result;
switch (node.Type)
{
case MathNodeType.Calculated:
result = new CalculatedNode(((CalculatedNode)node).Value);
break;
case MathNodeType.Value:
result = new ValueNode((ValueNode)node);
break;
case MathNodeType.Constant:
case MathNodeType.Variable:
result = node;
break;
default:
case MathNodeType.Function:
result = ((FuncNode)node).FunctionType != null ?
new FuncNode((KnownFuncType)((FuncNode)node).FunctionType) :
new FuncNode(node.Name);
break;
}
for (int i = 0; i < node.Childs.Count; i++)
{
switch (node.Childs[i].Type)
{
case MathNodeType.Calculated:
result.Childs.Add(new CalculatedNode((CalculatedNode)node.Childs[i]));
break;
case MathNodeType.Value:
result.Childs.Add(new ValueNode((ValueNode)node.Childs[i]));
break;
case MathNodeType.Constant:
case MathNodeType.Variable:
result.Childs.Add(node.Childs[i]);
break;
case MathNodeType.Function:
result.Childs.Add(MakeSubstitution((FuncNode)node.Childs[i]));
break;
}
}
return(result);
}
public CalculatedNode(CalculatedNode node)
{
Value = node.Value;
Name = Value.ToString(CultureInfo.InvariantCulture);
}
private MathFuncNode MakeSubstitution(MathFuncNode node)
{
int ind = -1;
for (int j = 0; j < LeftNode.Childs.Count; j++)
if (LeftNode.Childs[j].Name == node.Name)
{
ind = j;
break;
}
if (ind != -1)
{
if (_currentFunc.Childs[ind].IsTerminal)
return _currentFunc.Childs[ind];
else
return new FuncNode((FuncNode)_currentFunc.Childs[ind]);
}
MathFuncNode result;
switch (node.Type)
{
case MathNodeType.Calculated:
result = new CalculatedNode(((CalculatedNode)node).Value);
break;
case MathNodeType.Value:
result = new ValueNode((ValueNode)node);
break;
case MathNodeType.Constant:
case MathNodeType.Variable:
result = node;
break;
default:
case MathNodeType.Function:
result = ((FuncNode)node).FunctionType != null ?
new FuncNode((KnownFuncType)((FuncNode)node).FunctionType) :
new FuncNode(node.Name);
break;
}
for (int i = 0; i < node.Childs.Count; i++)
switch (node.Childs[i].Type)
{
case MathNodeType.Calculated:
result.Childs.Add(new CalculatedNode((CalculatedNode)node.Childs[i]));
break;
case MathNodeType.Value:
result.Childs.Add(new ValueNode((ValueNode)node.Childs[i]));
break;
case MathNodeType.Constant:
case MathNodeType.Variable:
result.Childs.Add(node.Childs[i]);
break;
case MathNodeType.Function:
result.Childs.Add(MakeSubstitution((FuncNode)node.Childs[i]));
break;
}
return result;
}
private MathFuncNode MakeSubstitution(MathFuncNode node)
{
int ind = -1;
for (int j = 0; j < LeftNode.Children.Count; j++)
{
if (LeftNode.Children[j].Name == node.Name)
{
ind = j;
break;
}
}
if (ind != -1)
{
if (_currentFunc.Children[ind].IsTerminal)
{
return(_currentFunc.Children[ind]);
}
else
{
return(new FuncNode((FuncNode)_currentFunc.Children[ind]));
}
}
MathFuncNode result = null;
switch (node)
{
case CalculatedNode calculatedNode:
result = new CalculatedNode(calculatedNode.Value);
break;
case ValueNode valueNode:
result = new ValueNode(valueNode);
break;
case ConstNode constNode:
case VarNode varNode:
result = node;
break;
case FuncNode funcNode:
result = funcNode.FunctionType != null ?
new FuncNode((KnownFuncType)funcNode.FunctionType) :
new FuncNode(node.Name);
break;
}
for (int i = 0; i < node.Children.Count; i++)
{
switch (node.Children[i])
{
case CalculatedNode calculatedNode:
result.Children.Add(new CalculatedNode(calculatedNode));
break;
case ValueNode valueNode:
result.Children.Add(new ValueNode(valueNode));
break;
case ConstNode constNode:
case VarNode varNode:
result.Children.Add(node.Children[i]);
break;
case FuncNode funcNode:
result.Children.Add(MakeSubstitution(funcNode));
break;
}
}
return(result);
}
public CalculatedNode(CalculatedNode node)
{
_value = node.Value;
Name = _value.ToString(CultureInfo.InvariantCulture);
}
