public static FinalEquation EquationBuilder(string sign, string raw)
{
int signPosition = raw.IndexOf(sign);
string firstNumber = raw.Substring(0, signPosition);
string secondNumber = raw.Substring(signPosition + 1);
FinalEquation finalEquation = new FinalEquation()
{
first = firstNumber, second = secondNumber, sign = sign
};
return(finalEquation);
}
public static double Calculator(FinalEquation equation)
{
switch (equation.sign)
{
case "*":
return(Convert.ToDouble(equation.first) * Convert.ToDouble(equation.second));
case "/":
return(Convert.ToDouble(equation.first) / Convert.ToDouble(equation.second));
case "+":
return(Convert.ToDouble(equation.first) + Convert.ToDouble(equation.second));
case "-":
return(Convert.ToDouble(equation.first) - Convert.ToDouble(equation.second));
default:
return(0);
}
}
public static double ValueParser(string str)
{
FinalEquation equation = null;
if (str.Contains("*"))
{
equation = EquationBuilder("*", str);
}
else if (str.Contains("/"))
{
equation = EquationBuilder("/", str);
}
else if (str.Contains("+"))
{
equation = EquationBuilder("+", str);
}
else if (str.Contains("-"))
{
equation = EquationBuilder("-", str);
}
return(Calculator(equation));
}
