internal CalcResult ExecuteExpression()
{
var decimalResult = String.Empty;
var binaryResult = String.Empty;
var hexadecimalResult = String.Empty;
var decimalSeparator = $"{Separator(culture: Culture)}";
var message = $"note, your decimal separator is a ' " + decimalSeparator + " '";
if (String.IsNullOrWhiteSpace(Expression))
{
return(new CalcResult(decResult: decimalResult, binResult: binaryResult,
hexResult: hexadecimalResult, message: message, separator: decimalSeparator));
}
try
{
var myNode = CalculationParser.GrowNodeTree(input: Expression, culture: Culture);
if (myNode != null)
{
decimal result = myNode.Calculate();
decimalResult = result.ToString($"n{PrecisionForDecimalResult}", Culture).
TrimEnd('0').TrimEnd(Separator(culture: Culture));
binaryResult = Convertions.ConvertDecimalToBinaryString
(input: Decimal.Parse(decimalResult, Culture), precisionForBinary: PrecisionForBinaryResult,
culture: Culture);
hexadecimalResult = Convertions.ConvertDecimalToHexadecimalString
(input: Decimal.Parse(decimalResult, Culture));
int signsAfterSeparator = SignsAfterSeparator(number: result, separator: decimalSeparator);
message = CheckOnFractionalRounding(afterRounding: decimalResult, precision: PrecisionForDecimalResult,
message: message, beforeRounding: result.ToString($"n{signsAfterSeparator}", Culture).
TrimEnd('0').TrimEnd(Separator(culture: Culture)));
}
}
catch (CheckingException exception)
{
message = exception.Message;
}
catch (DivideByZeroException)
{
message = "Divide by Zero gives you infinity";
decimalResult = Infinity;
binaryResult = Infinity;
hexadecimalResult = Infinity;
}
catch (OverflowException)
{
message = "value is too large or too small";
}
catch (Exception)
{
message = "Calculation failed";
}
return(new CalcResult(decResult: decimalResult, binResult: binaryResult,
hexResult: hexadecimalResult, message: message, separator: decimalSeparator));
}
