private static string Calculation(string Expresion)
{
double tempSolution;
string tempString = null;
string[] parsedExpresion = StringParsing.Parsing(Expresion);
int count = Array.FindAll <string>(parsedExpresion, a => a == "*" || a == "/").Length;
for (int i = 0; i < count; i++)
{
parsedExpresion = StringParsing.Parsing(Expresion);
for (int j = 0; j < parsedExpresion.Length; j++)
{
if (Expresion.Contains("/0"))
{
Console.WriteLine(" Деление на ноль");
throw new FormatException();
}
if (parsedExpresion[j] == "*")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) *
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
else if (parsedExpresion[j] == "/")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) /
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
}
Expresion = tempString;
}
count = Array.FindAll <string>(parsedExpresion, a => a == "+" || a == "-").Length;
for (int i = 0; i < count; i++)
{
parsedExpresion = StringParsing.Parsing(Expresion);
for (int j = 0; j < parsedExpresion.Length; j++)
{
if (parsedExpresion[j] == "+")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) +
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
else if (parsedExpresion[j] == "-")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) -
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
}
Expresion = tempString;
}
return(Expresion);
}
static void Main(string[] args)
{
string fullExpresion = null;
char tempChar;
CalculateDelegate Calc = Calculation;
AnonimMethodCalculateDelegate AnonimMethodCalc = delegate(string Expresion)
{
if (Expresion.Contains("/") | Expresion.Contains("*"))
{
throw new FormatException();
}
double tempSolution;
string tempString = null;
string[] parsedExpresion = StringParsing.Parsing(Expresion);
int count = Array.FindAll <string>(parsedExpresion, a => a == "+" || a == "-").Length;
for (int i = 0; i < count; i++)
{
parsedExpresion = StringParsing.Parsing(Expresion);
for (int j = 0; j < parsedExpresion.Length; j++)
{
if (parsedExpresion[j] == "+")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) *
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
else if (parsedExpresion[j] == "-")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) /
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
}
Expresion = tempString;
}
return(Expresion);
};
LambdaCalculateDelegate LambdaCalc = Expresion =>
{
if (Expresion.Contains("+") | Expresion.Contains("-"))
{
throw new FormatException();
}
double tempSolution;
string tempString = null;
string[] parsedExpresion = StringParsing.Parsing(Expresion);
int count = Array.FindAll <string>(parsedExpresion, a => a == "*" || a == "/").Length;
for (int i = 0; i < count; i++)
{
if (Expresion.Contains("/0"))
{
Console.WriteLine("Деление на ноль");
throw new FormatException();
}
parsedExpresion = StringParsing.Parsing(Expresion);
for (int j = 0; j < parsedExpresion.Length; j++)
{
if (parsedExpresion[j] == "*")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) *
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
else if (parsedExpresion[j] == "/")
{
tempString = null;
tempSolution = Convert.ToDouble(parsedExpresion[j - 1]) /
Convert.ToDouble(parsedExpresion[j + 1]);
parsedExpresion[j - 1] = tempSolution.ToString();
parsedExpresion[j] = "";
parsedExpresion[j + 1] = "";
foreach (var item in parsedExpresion)
{
tempString += item;
}
break;
}
}
Expresion = tempString;
}
return(Expresion);
};
Console.WriteLine(" Введите выражение с +,-,*,/");
for (;;)
{
try
{
tempChar = Console.ReadKey().KeyChar;
if (tempChar == '=')
{
Console.Write(Convert.ToDouble(Calc(fullExpresion)));
break;
}
else
{
fullExpresion += tempChar;
}
}
catch (Exception ex)
{
if (ex is FormatException || ex is NullReferenceException)
{
fullExpresion = null;
Console.WriteLine("\n Не коректное условие. Введите повторно: ");
}
}
}
fullExpresion = null;
Console.WriteLine("\n Введите выражение с +,-");
for (;;)
{
try
{
tempChar = Console.ReadKey().KeyChar;
if (tempChar == '=')
{
Console.Write(Convert.ToDouble(AnonimMethodCalc(fullExpresion)));
break;
}
else
{
fullExpresion += tempChar;
}
}
catch (Exception ex)
{
if (ex is FormatException || ex is NullReferenceException)
{
fullExpresion = null;
Console.WriteLine("\n Не коректное условие. Введите повторно: ");
}
}
}
fullExpresion = null;
Console.WriteLine("\n Введите выражение с *,/");
for (;;)
{
try
{
tempChar = Console.ReadKey().KeyChar;
if (tempChar == '=')
{
Console.Write(Convert.ToDouble(LambdaCalc(fullExpresion)));
break;
}
else
{
fullExpresion += tempChar;
}
}
catch (Exception ex)
{
if (ex is FormatException || ex is NullReferenceException)
{
fullExpresion = null;
Console.WriteLine("\n Не коректное условие. Введите повторно: ");
}
}
}
Console.ReadLine();
}