public Variant CalcIt(ExecutionQueue eq)
{
ExecutionItem ei;
if(eq.Count == 0) return new Variant("");
while(eq.Count > 0)
{
ei = eq.Dequeue();
switch(ei.itemType)
{
case ItemType.itBool:
if(String.Compare(ei.itemString,"True",true) == 0)
calcStack.Push(new Variant(true));
else
calcStack.Push(new Variant(false));
break;
case ItemType.itString:
calcStack.Push(new Variant(ei.itemString));
break;
case ItemType.itDigit:
try
{
int i = int.Parse(ei.itemString);
calcStack.Push(new Variant(i));
}
catch
{
double d;
try {d = double.Parse(ei.itemString);}
catch{throw(new CalcException("Bad digital format"));}
calcStack.Push(new Variant(d));
}
break;
case ItemType.itDate:
DateTime dt;
try {dt = DateTime.Parse(ei.itemString);}
catch {throw(new CalcException("Bad date format"));}
calcStack.Push(new Variant(dt));
break;
case ItemType.itOperator:
DoOperator(ei.itemOperator,eq);
break;
case ItemType.itFunction:
DoFunction(ei);
break;
case ItemType.itVariable:
if(!Variables.ContainsKey(ei.itemString)) throw(new CalcException("Bad variable name !"));
calcStack.Push(new Variant(Variables[ei.itemString]));
break;
default:
throw(new CalcException("Bad item in execution queue"));
}
}
return calcStack.Pop();
}
public Variant CalcIt(ExecutionQueue eq)
{
ExecutionItem ei;
if (eq.Count == 0)
{
return(new Variant(""));
}
while (eq.Count > 0)
{
ei = eq.Dequeue();
switch (ei.itemType)
{
case ItemType.itBool:
if (String.Compare(ei.itemString, "True", true) == 0)
{
calcStack.Push(new Variant(true));
}
else
{
calcStack.Push(new Variant(false));
}
break;
case ItemType.itString:
calcStack.Push(new Variant(ei.itemString));
break;
case ItemType.itDigit:
try
{
int i = int.Parse(ei.itemString);
calcStack.Push(new Variant(i));
}
catch
{
double d;
try { d = double.Parse(ei.itemString); }
catch { throw(new CalcException("Bad digital format")); }
calcStack.Push(new Variant(d));
}
break;
case ItemType.itDate:
DateTime dt;
try { dt = DateTime.Parse(ei.itemString); }
catch { throw(new CalcException("Bad date format")); }
calcStack.Push(new Variant(dt));
break;
case ItemType.itOperator:
DoOperator(ei.itemOperator, eq);
break;
case ItemType.itFunction:
DoFunction(ei);
break;
case ItemType.itVariable:
if (!Variables.ContainsKey(ei.itemString))
{
throw(new CalcException("Bad variable name !"));
}
calcStack.Push(new Variant(Variables[ei.itemString]));
break;
default:
throw(new CalcException("Bad item in execution queue"));
}
}
return(calcStack.Pop());
}
