void CreateOperators()
{
// Only one of each operation Token needs to be created
opAdd = new Add(workStack);
opSubtract = new Subtract(workStack);
opMultiply = new Multiply(workStack);
opDivide = new Divide(workStack);
opPower = new Power(workStack);
opBracket = new Bracket();
opUnaryMinus = new UnaryMinus(workStack);
opUnaryPlus = new UnaryPlus();
opSqrt = new Sqrt(workStack);
opSin = new Sin(workStack);
opCos = new Cos(workStack);
opTan = new Tan(workStack);
opLog = new Log(workStack);
opAsin = new Asin(workStack);
opAcos = new Acos(workStack);
opAtan = new Atan(workStack);
functions = new Dictionary<string, Function>
{
{"sqr", opSqrt },
{"sin", opSin },
{"cos", opCos },
{"tan", opTan },
{"log", opLog },
{"asin", opAsin },
{"acos", opAcos },
{"atan", opAtan }
};
binaryOperators = new Dictionary<char, BinaryOperator>
{
{'+', opAdd },
{'-', opSubtract },
{'*', opMultiply },
{'/', opDivide },
{'^',opPower }
};
}
//THE MOTHER FUNCTION
public int handledIt(string input)
{
//declare variable to hold result from operation
int result = 0;
//set stack_record so that I can access the last user input
stack_record.lastQ = input;
//create new expression class to handle parsing user input
Expression myExp = new Expression();
//allow the container to be set from the parseExpression method
Container answer = myExp.ParseExpression(input);
//search the equation for a constant and parse it out to do the math on.
string ContString = "abcdefghijklmnopqrstuvwxyz";
foreach (var letter in input)
{
if (ContString.IndexOf(letter) == 0)
{
Console.WriteLine("No Constant Defined");
}
else
{
}
}
//shorthand the variables from Container class
int lhs = answer.LHS;
int rhs = answer.RHS;
char op = answer.OP;
string constant = answer.CONS;
//run the operator logic
if (op == '+')
{
Add add_me = new Add();
result = add_me.addIt(lhs, rhs);
}
else if (op == '-')
{
Subtract subtract_me = new Subtract();
result = subtract_me.subtractIt(lhs, rhs);
}
else if (op == '*')
{
Multiply multiply_me = new Multiply();
result = multiply_me.multiplyIt(lhs, rhs);
}
else if (op == '/')
{
Divide divide_me = new Divide();
result = divide_me.divideIt(lhs, rhs);
}
else if (op == '%')
{
Modulo modulo_me = new Modulo();
result = modulo_me.moduloIt(lhs, rhs);
}
else if (op == '=')
{
conts.Add(constant, rhs);
result = rhs;
}
else
{
throw new InvalidOperationException("no valid operator found");
}
//set stack_record result for later access
stack_record.last = result;
return(result);
}
static void Main(string[] args)
{
int flag = 1;
int a =0;
int b = 0;
int res = 0;
int i = 0;
int op;
char cont;
string[] operations = new string[] { "Addition", "Subtraction", "Multipliaction", "Division", "Exit" };
while(flag == 1)
{
Console.Clear();
Console.Write("Please enter the operation to be performed :\n");
//Console.Write("\n1) Addition\n2) Subtraction\n3) Multiplication\n4) Division\n5) exit\n\n");
i = 1;
foreach (string option in operations)
{
Console.Write("\n" + i + ") " + option + "\n");
i++;
}
op = Convert.ToInt32(Console.ReadLine());
if(op < 5)
{
Console.Write("\n************************************************************************\n");
Console.Write("Please enter 2 integers \n");
a = Convert.ToInt32(Console.ReadLine());
b = Convert.ToInt32(Console.ReadLine());
}
switch(op)
{
case 1:
Console.Write("\n************************************************************************\n");
Console.Write("Operation to be performed is {0}\n", operations[0]);
Add op1 = new Add();
res = op1.addition(a, b);
break;
case 2:
Console.Write("\n************************************************************************\n");
Console.Write("Operation to be performed is {0}\n", operations[1]);
Sub op2 = new Sub();
res = op2.substraction(a, b);
break;
case 3:
Console.Write("\n************************************************************************\n");
Console.Write("Operation to be performed is {0}\n", operations[2]);
multiply op3 = new multiply();
res = op3.multiplication(a, b);
break;
case 4:
Console.Write("\n************************************************************************\n");
Console.Write("Operation to be performed is {0}\n", operations[3]);
if (b == 0)
{
Console.Write("Division by zero error !!! \n\nPlease enter a non zero value for b \n");
b = Convert.ToInt32(Console.ReadLine());
}
divide op4 = new divide();
res = op4.division(a, b);
break;
case 5:
Console.Write("\n************************************************************************\n");
Console.Write("Operation to be performed is {0}\n", operations[4]);
Environment.Exit(0);
break;
default :
Console.Write("Invalid operation\n");
break;
}
Console.Write("\n************************************************************************\n");
Console.Write("\nResult of the operation is : {0}", res);
Console.Write("\n************************************************************************\n");
Console.Write("\n\nDo you want to continue : Y or N\n");
cont = Convert.ToChar(Console.ReadLine());
if (cont == 'N' || cont == 'n')
flag = 0;
}
}