private static TreeNodeBase BuildTreeNode(string symbol)
{
switch (symbol)
{
case "1":
return new Constant();
case "x":
return new State();
case "t":
return new Time();
case "+":
return new Addition();
case "*":
return new Multiplication();
case "-":
return new Substraction();
default:
try
{
int a = Convert.ToInt32(symbol);
var temp =new Constant();
temp.SetValue(a);
return temp;
}
catch (Exception)
{
throw new Exception();
}
}
}
public override TreeNodeBase DeepCopy()
{
Constant node = new Constant {Value = Value};
return node;
}
