public void ConvertShouldConvertToReversePolishNotation()
{
var input = new[] // 3 + 4 * 2 / (1 - 5)^2
{
InputCell.Number(3),
InputCell.Symbol("+"),
InputCell.Number(4),
InputCell.Symbol("*"),
InputCell.Number(2),
InputCell.Symbol("/"),
InputCell.Symbol("("),
InputCell.Number(1),
InputCell.Symbol("-"),
InputCell.Number(5),
InputCell.Symbol(")"),
InputCell.Symbol("^"),
InputCell.Number(2),
};
var result = new RpnConverter(new InputChecker()).Convert(input);
// 3 4 2 * 1 5 - 2 ^ / +
Assert.AreEqual(3, result[0].Value);
Assert.AreEqual(4, result[1].Value);
Assert.AreEqual(2, result[2].Value);
Assert.AreEqual("*", result[3].Value);
Assert.AreEqual(1, result[4].Value);
Assert.AreEqual(5, result[5].Value);
Assert.AreEqual("-", result[6].Value);
Assert.AreEqual(2, result[7].Value);
Assert.AreEqual("^", result[8].Value);
Assert.AreEqual("/", result[9].Value);
Assert.AreEqual("+", result[10].Value);
}
static void Main(string[] args)
{
var parser = new InputParser();
var checker = new InputChecker();
var converter = new RpnConverter(checker);
var counter = new RpnCounter();
var calculator = new RpnCalculator(parser, converter, counter);
Console.WriteLine("CONSOLE CALCULATOR");
Console.WriteLine("You can enter numbers and symbols + - * / ^ ( ).");
Console.WriteLine("Press enter key to calculate.");
Console.WriteLine("Enter 'q' key to exit.");
while (true)
{
Console.Write("Enter expression > ");
string input = Console.ReadLine();
if ("q".Equals(input, StringComparison.OrdinalIgnoreCase))
{
break;
}
try
{
double result = calculator.Calculate(input);
Console.WriteLine($"Result is {result}");
}
catch (Exception)
{
Console.WriteLine("Incorrect input");
}
}
}
public RpnCalculator(InputParser parser, RpnConverter converter, RpnCounter counter)
{
_parser = parser;
_converter = converter;
_counter = counter;
}
