private static void AddNumberToQueue(string number)
{
if (!CheckForFails.isEmpty(number))
{
result.Enqueue(CreateCalcObject("Number", number));
}
}
public void Calculate()
{
string response;
Calculator calculator = new Calculator();
SpecialCommand specialCommand = new SpecialCommand();
PrintHelpInformation();
while (true)
{
ScanExpression();
response = specialCommand.GetResponse(expression);
if (response == "exit")
{
break;
}
else
if (expression != response)
{
PrintResponse(response);
}
else
{
response = CheckForFails.GetResponse(expression);
if (expression != response)
{
PrintResponse(response);
}
else
{
PrintResult(calculator.Calculate(expression));
}
}
}
ExitMessage();
}
private static bool IsDigit(char previous, char current, int i)
{
if (Char.IsDigit(current) || current == ',' || (current == '-' && (i == 0 || (i > 0 && (previous == '(' || CheckForFails.isEmpty(previous.ToString()))))))
{
return(true);
}
else
{
return(false);
}
}