README.md

Burda calculator v1.0

The app parses math expressions and calculates results. It's easy to extend. Just create new operator which implements either IBinaryOperator or IUnaryOperator interface located in Calculator.Operators.Interfaces.

Example binary operator:

public sealed class AddOperator : IBinaryOperator
{
    public int Precedence { get; set; }
    public OperatorAssociativity OperatorAssociativity { get; set; }
    public string OperatorNotationInput { get; set; }
    public string OperatorNotationOutput { get; set; }

    public decimal Calculate(decimal operand1, decimal operand2)
    {
        return operand1 + operand2;
    }

    public AddOperator()
    {
        Precedence = 4;
        OperatorNotationOutput = OperatorNotationInput = "+";
        OperatorAssociativity = OperatorAssociativity.Left;
    }
}

Example unary operator:

public sealed class DecadicLogarithmOperator : IUnaryOperator
{
    public int Precedence { get; set; }
    public OperatorAssociativity OperatorAssociativity { get; set; }
    public string OperatorNotationInput { get; set; }
    public string OperatorNotationOutput { get; set; }
    public UnaryOperatorType UnaryOperatorType { get; set; }
    public decimal Calculate(decimal operand)
    {
        return (decimal) Math.Log10((double) operand);
    }

    public DecadicLogarithmOperator()
    {
        Precedence = 64;
        OperatorNotationOutput = OperatorNotationInput = "log10";
        UnaryOperatorType = UnaryOperatorType.Function;
        OperatorAssociativity = OperatorAssociativity.Left;
    }
}