public void TestGetPriority01()
{
MemberOp memberOP = new MemberOp();
//Test Procedure Call
OperatorPriority priority = memberOP.Priority;
//Post Condition Check
}
private List <Element> EvalPriorityOperators(List <Element> elements, OperatorPriority priority)
{
List <Element> new_elements = new List <Element>();
// seek for operators with high priority
int len = elements.Count;
for (int i = 0; i < len - 1; i++)
{
Element e = elements[i];
if (e.ElementType == ElementType.Operator)
{
Operator op = (Operator)e;
if (op.Priority == priority) // operator with high priority, like * and /
{
Operand operand1 = (Operand)elements[i - 1];
Operand operand2 = (Operand)elements[i + 1];
for (int j = 0; j < i - 1; j++)
{
new_elements.Add(elements[j]);
}
new_elements.Add(new Operand(op.Eval(operand1.Eval(), operand2.Eval())));
for (int j = i + 2; j < len; j++)
{
new_elements.Add(elements[j]);
}
return(EvalPriorityOperators(new_elements, priority));
}
}
}
return(elements);
}
public Operator(OperatorType type) : base(ElementType.Operator)
{
_type = type;
if (type == OperatorType.Powers || type == OperatorType.Percentage)
{
_priority = OperatorPriority.High;
}
else if (type == OperatorType.Multiply || type == OperatorType.Divide || type == OperatorType.Remainder)
{
_priority = OperatorPriority.Medium;
}
else
{
_priority = OperatorPriority.Low;
}
}
public Operator(string Operator, OperatorPriority Priority)
{
this.name = Operator;
this.priority = Priority;
}
