public override double? performOperation(ICalculationOperation operation)
{
operation.FirstArgument = operation.SecondArgument;
operation.SecondArgument = null;
this.CalculationOperation = operation;
reset = true;
return null;
}
public void GrowNodeTreeTest4()
{
string test = "((386))";
ICalculationOperation node_386 = new Number(386M);
ICalculationOperation actualNode = CalculationParser.GrowNodeTree(input: test, culture: new CultureInfo("es-ES"));
Assert.AreEqual(actualNode, node_386);
}
protected CalculationOperation(ICalculationOperation left, ICalculationOperation right)
{
if (left == null || right == null)
{
throw new CheckingException(message: "Calculation failed");
}
Left = left;
Right = right;
}
public void GrowNodeTreeTest3()
{
string test = "((2) + 3,0000)";
ICalculationOperation node_2 = new Number(2M);
ICalculationOperation node_3 = new Number(3.0000M);
ICalculationOperation node_2_plus_3 = new Addition(node_2, node_3);
ICalculationOperation actualNode = CalculationParser.GrowNodeTree(input: test, culture: new CultureInfo("es-ES"));
Assert.AreEqual(actualNode, node_2_plus_3);
}
public void GrowNodeTreeTest1()
{
string test = "2 + 3";
ICalculationOperation node_2 = new Number(2M);
ICalculationOperation node_3 = new Number(3M);
ICalculationOperation node_2_plus_3 = new Addition(node_2, node_3);
ICalculationOperation actualNode = CalculationParser.GrowNodeTree(input: test, culture: new CultureInfo("zh-HK"));
Assert.AreEqual(actualNode, node_2_plus_3);
}
public void GrowNodeTreeTest2()
{
string test = "6-8/(( 4.2))";
ICalculationOperation node_6 = new Number(6M);
ICalculationOperation node_8 = new Number(8M);
ICalculationOperation node_4_point_2 = new Number(4.2M);
ICalculationOperation node_8_divide_4_point_2 = new Division(node_8, node_4_point_2);
ICalculationOperation node_6_minus_8_divide_4_point_2 = new Subtraction(node_6, node_8_divide_4_point_2);
ICalculationOperation actualNode = CalculationParser.GrowNodeTree(input: test, culture: new CultureInfo("ja-JP"));
Assert.AreEqual(actualNode, node_6_minus_8_divide_4_point_2);
}
private static ICalculationOperation MakeNode(string input, CultureInfo culture)
{
ICalculationOperation node = null;
if (input.Any(character => CalculationConstants.PlusMinMultDivPow.Contains(character)))
{
node = SplitToNodes(input: input, culture: culture);
}
else
{
input = BracketsHelper.TrimBrackets(input);
node = new Number(value: decimal.Parse(input, culture));
}
return(node);
}
public override double?performOperation(ICalculationOperation operation)
{
CalculationOperation.SecondArgument = operation.SecondArgument;
CalculationOperation.Operation();
double result = CalculationOperation.Result.Value;
calculatorUser.CalculatorHistory?.AddToHistory(CalculationOperation);
if (!(operation is EqualsOperation))
{
operation.FirstArgument = CalculationOperation.Result;
CalculationOperation = operation;
reset = true;
}
else
{
calculatorUser.CalculatorState = new InitialCalculatorState(calculatorUser);
}
return(result);
}
private static ICalculationOperation SplitToNodes(string input, CultureInfo culture)
{
input = BracketsHelper.TrimBrackets(input);
// Since people read from left to right, to ensure the correct order of operations,
// node tree should be built from right to left with priority of operations outside brackets:
// plus or minus, multply or divide, power.
int lastOperationIndex = FindLastOerationWithPriorityPlusMinus(input: input);
var rightString = input.Substring(lastOperationIndex + 1);
var leftString = input.Substring(0, lastOperationIndex);
var operation = input[lastOperationIndex];
ICalculationOperation node = null;
ICalculationOperation leftOperand = MakeNode(input: leftString, culture: culture);
ICalculationOperation rightOperand = MakeNode(input: rightString, culture: culture);
switch (operation)
{
case CalculationConstants.Plus:
node = new Addition(leftOperand, rightOperand);
break;
case CalculationConstants.Minus:
node = new Subtraction(leftOperand, rightOperand);
break;
case CalculationConstants.Divide:
node = new Division(leftOperand, rightOperand);
break;
case CalculationConstants.Multiply:
node = new Multiplication(leftOperand, rightOperand);
break;
case CalculationConstants.Power:
node = new ToThePower(leftOperand, rightOperand);
break;
}
return(node);
}
private static decimal DisplayDecimalResult(ICalculationOperation node, CultureInfo culture)
{
decimal result = node.Calculate();
string decimalResult = result.ToString($"n{PrecisionForDecimalResult}", culture);
decimalResult = decimalResult.TrimEnd('0').TrimEnd(Separator(culture: culture));
Console.ForegroundColor = ConsoleColor.DarkGray;
Console.Write("decimal: ");
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine(decimalResult);
int separatorIndex = result.ToString().IndexOf(Separator(culture: culture));
if (separatorIndex > 0 && result.ToString().Length - separatorIndex > PrecisionForDecimalResult)
{
Notify += () => Console.WriteLine($"Note, decimal result is rounded, precision is '{PrecisionForDecimalResult}'");
}
return(result);
}
public abstract double?performOperation(ICalculationOperation operation);
internal Subtraction(ICalculationOperation left, ICalculationOperation right) : base(left, right)
{
}
internal Addition(ICalculationOperation left, ICalculationOperation right) : base(left, right)
{
}
internal Multiplication(ICalculationOperation left, ICalculationOperation right) : base(left, right)
{
}
public void Initialize()
{
_calculationOperation = new CalculationOperation();
}
public PostfixNotationParseEquation(ICalculationOperation calculationOperation)
{
_calculationOperation = calculationOperation;
}
internal ToThePower(ICalculationOperation left, ICalculationOperation right) : base(left, right)
{
}
internal Division(ICalculationOperation left, ICalculationOperation right) : base(left, right)
{
}
public PostfixNotationExpression(ICalculationOperation calculationOperation, IPostfixNotationParseEquation postfixNotationParseEquation)
{
_postfixNotationParseEquation = postfixNotationParseEquation;
_calculationOperation = calculationOperation;
}
public override double?performOperation(ICalculationOperation operation)
{
return(null);
}