public static bool DoMaths(ref string number, ref double l1, ref double l2, ref Operation op, Operation newOp, ref bool firstOperation)
{
// Do not assign l2 if it's first time
if (!firstOperation)
{
if (!double.TryParse(number, out l2))
{
number = MUtil.ExpNotationToDecimalNotation(number);
if (!double.TryParse(number, out l1))
{
Debug.LogError("Cannot parse " + number + " to number ( double )");
return(false);
}
}
l1 = op.function.Invoke(l1, l2);
}
else
{
firstOperation = false;
}
number = "";
op = newOp;
return(true);
}
public static double Calculate(string data)
{
if (data.Length == 0)
{
Debug.LogError("Data is empty");
return(double.NaN);
}
if (operations == null)
{
FillOperationsList();
}
if (bracketsFunctions == null)
{
FillBracketsFunctions();
}
data = MUtil.RemoveSpaces(data);
data = ChangePunctuationMark(data);
data = MUtil.ExpNotationToDecimalNotation(data);
data = ReplaceConstants(data);
data = CalculateBrackets(data);
if (data.StartsWith("E"))
{
return(double.NaN);
}
data = CalculateExpression(data);
double result = 0;
if (!double.TryParse(data, out result))
{
Debug.LogError("Cannot parse " + data + " to result ( double )");
return(double.NaN);
}
return(result);
}
/// <summary>
/// Gets bracket operation and creates list from them
/// </summary>
/// <param name="data">String with expression</param>
/// <param name="bracketOperations"></param>
/// <returns>Data without brackets operations</returns>
private static string CalculateBrackets(string data)
{
string actExpr = "";
string specialMode = "";
int bracketLevel = 0;
List <BracketOperation> bracketOperations = new List <BracketOperation>();
for (int i = 0; i < data.Length; i++)
{
if (bracketLevel > 0)
{
actExpr += data[i];
}
if (data[i] == ')')
{
if (bracketLevel > 1)
{
bracketLevel--;
}
else if (bracketLevel == 1)
{
BracketOperation operation = new BracketOperation(actExpr.Remove(0, 1).Remove(actExpr.Length - 2, 1), i - actExpr.Length + 1 - specialMode.Length);
if (specialMode.Length > 0)
{
Function f = FindFunction(specialMode, true);
if (f == null)
{
Debug.LogError("Cannot find function " + specialMode);
return("ENOFUNCTION");
}
operation.specialFunction = f;
}
//Debug.Log("Bracket operation: \"" + operation.operation + "\"");
//Debug.Log("Bracket operation start: " + operation.positionInString);
bracketOperations.Add(operation);
data = data.Remove(i - actExpr.Length + 1 - specialMode.Length, actExpr.Length + specialMode.Length);
i -= actExpr.Length + specialMode.Length;
actExpr = "";
specialMode = "";
bracketLevel = 0;
}
else
{
Debug.LogError("Closing bracket without opening");
return(double.NaN.ToString());
}
}
else if (data[i] == '(')
{
bracketLevel++;
if (bracketLevel == 1)
{
actExpr += data[i];
string s = "";
for (int j = i - 1; j >= 0; j--)
{
if (MUtil.IsNumber(data[j]))
{
break;
}
if (FindOperation(data[j]) != null)
{
break;
}
s = "" + data[j];
specialMode = specialMode.Insert(0, s);
}
}
}
}
//Debug.Log("Bracket level: " + bracketLevel);
if (bracketLevel > 0)
{
Debug.LogError("No closing bracket");
return("ENOCLOSEBRACKET");
}
// Recurently get additional brackets from brackets
for (int i = 0; i < bracketOperations.Count; i++)
{
BracketOperation op = bracketOperations[i];
op.operation = CalculateBrackets(bracketOperations[i].operation);
bracketOperations[i] = op;
}
// Calcualate brackets
for (int i = 0; i < bracketOperations.Count; i++)
{
string rtBeforeComma = "";
string rtAfterComma = "";
bool rtIsAfterComma = false;
string result;
// Two args functions
if (bracketOperations[i].specialFunction != null && bracketOperations[i].specialFunction.function == null && bracketOperations[i].specialFunction.twoArgFunction != null)
{
for (int j = 0; j < bracketOperations[i].operation.Length; j++)
{
if (bracketOperations[i].operation[j] == ';')
{
rtIsAfterComma = true;
continue;
}
if (rtIsAfterComma)
{
rtAfterComma += bracketOperations[i].operation[j];
}
else
{
rtBeforeComma += bracketOperations[i].operation[j];
}
}
rtBeforeComma = CalculateExpression(rtBeforeComma);
//Debug.Log("rtBeforeComma after: " + rtBeforeComma);
rtAfterComma = CalculateExpression(rtAfterComma);
//Debug.Log("rtAfterComma after: " + rtAfterComma);
result = "0";
}
else
{
result = CalculateExpression(bracketOperations[i].operation);
}
double res;
if (!double.TryParse(result, out res))
{
Debug.LogError("Cannot convert " + result + " to result ( double )");
return("ECONVERSION");
}
if (bracketOperations[i].specialFunction != null)
{
if (bracketOperations[i].specialFunction.function != null)
{
res = bracketOperations[i].specialFunction.function.Invoke(res);
result = MUtil.ToStandardNotationString(res);
if (result.Length == 0)
{
result = "0";
}
}
else
{
if (bracketOperations[i].specialFunction.function == null && bracketOperations[i].specialFunction.twoArgFunction != null)
{
if (rtBeforeComma.Length == 0 || rtAfterComma.Length == 0)
{
Debug.LogError("Bad 2 arg function arguments");
return("EBADROOTARG");
}
else
{
double l1;
double n;
if (!double.TryParse(rtBeforeComma, out l1))
{
Debug.LogError("Cannot convert first root argument to l1 ( double )");
return("EBADCONVERSION");
}
if (!double.TryParse(rtAfterComma, out n))
{
Debug.LogError("Cannot convert second root argument to n ( double )");
return("EBADCONVERSION");
}
res = bracketOperations[i].specialFunction.twoArgFunction(l1, n); //OperationFunctions.Rt(l1, n);
result = MUtil.ToStandardNotationString(res);
if (result.Length == 0)
{
result = "0";
}
}
}
}
//Debug.Log("Result: " + result);
}
data = data.Insert(bracketOperations[i].positionInString, result);
// Fix offsets
for (int j = i + 1; j < bracketOperations.Count; j++)
{
BracketOperation tOp = bracketOperations[j];
tOp.positionInString += result.Length;
bracketOperations[j] = tOp;
}
}
return(data);
}
public static double Power(double l1, double l2)
{
return(MUtil.Power(l1, l2));
}
public static string CalculateSpecificOperations(string data, Operation[] allowedOperations)
{
double l1 = 0, l2 = 0;
Operation op = null; // First operation is always addition
string actualNumber = "";
bool noPrevOperators = true;
bool operationIsAllowed = false;
int startIndex = 0;
string startData = "";
for (int i = 0; i < data.Length; i++)
{
op = FindOperation(data[i]);
if (op != null)
{
if (i == 0 && data[0] == '-')
{
startData += data[0];
continue;
}
startIndex = i;
break;
}
startData += data[i];
}
// No operator
if (op == null)
{
return(data);
}
if (startIndex == 0)
{
Debug.LogError("Operator without number: \"" + data + "\" op: " + op.name);
return("EOPWTHTNMBR");
}
if (!double.TryParse(startData, out l1))
{
if (startData[startData.Length - 1] == 'E')
{
for (int i = startData.Length; i < data.Length; i++)
{
if (MUtil.IsNumber(data[i]) || data[i] == '+')
{
startData += data[i];
}
else
{
break;
}
}
for (int i = 0; i < data.Length; i++)
{
if (data[i] == 'E')
{
if (data.Length > i + 1)
{
if (data[i + 1] == '+')
{
i += 2;
}
}
}
op = FindOperation(data[i]);
if (op != null)
{
break;
}
}
l1 = MUtil.GetDoubleFromExpNotation(startData);
data = data.Remove(0, startData.Length);
string decimalStartData = MUtil.ExpNotationToDecimalNotation(startData);
data = data.Insert(0, decimalStartData);
startData = decimalStartData;
startIndex = startData.Length;
Debug.Log("Data after converting exponent notation: " + data);
}
else
{
Debug.LogError("Cannot convert " + startData + " to l1 ( double )");
return("ECONVERSION");
}
if (l1.Equals(double.NaN))
{
Debug.LogError("Cannot convert " + startData + " to l1 ( double ). l1 = NaN");
return("ECONVERSION");
}
}
actualNumber = startData;
bool firstOperation = true;
// Multiply
for (int i = startIndex; i < data.Length; i++)
{
Operation aop = FindOperation(data[i]);
if (aop != null)
{
if (actualNumber.Length == 0 && data[i] == '-')
{
actualNumber += data[i];
continue;
}
operationIsAllowed = false;
for (int j = 0; j < allowedOperations.Length; j++)
{
if (op == allowedOperations[j])
{
operationIsAllowed = true;
break;
}
}
if (operationIsAllowed)
{
if (data[i] == '+' && i > 0 && (data[i - 1] == 'E'))
{
actualNumber += data[i];
continue;
}
//Debug.Log("Data before: " + data);
if (noPrevOperators)
{
data = data.Remove(0, actualNumber.Length);
i = 0;
}
else
{
string l1Str = MUtil.ToStandardNotationString(l1);
data = data.Remove(i - actualNumber.Length - 1 - l1Str.Length, actualNumber.Length + 1 + l1Str.Length);
i -= actualNumber.Length + 1 + l1Str.Length;
}
noPrevOperators = false;
//l1 = l2;
//actualNumber = MUtil.ExpNotationToDecimalNotation(actualNumber);
if (!DoMaths(ref actualNumber, ref l1, ref l2, ref op, aop, ref firstOperation))
{
return("ECONVERSION");
}
string standardNotL1 = MUtil.ToStandardNotationString(l1);
data = data.Insert(i, standardNotL1);
i += standardNotL1.Length;
actualNumber = "";
op = aop;
//Debug.Log("Data after: " + data);
}
else
{
if (data[i] == '+' && i > 0 && (data[i - 1] == 'E'))
{
actualNumber += data[i];
continue;
}
if (!double.TryParse(actualNumber, out l1))
{
actualNumber = MUtil.ExpNotationToDecimalNotation(actualNumber);
if (!double.TryParse(actualNumber, out l1))
{
Debug.LogError("Cannot parse " + actualNumber + " to number ( double ) #2");
return("ECONVERSION");
}
}
op = aop;
actualNumber = "";
noPrevOperators = false;
firstOperation = false;
}
}
else
{
actualNumber += data[i];
}
}
operationIsAllowed = false;
for (int j = 0; j < allowedOperations.Length; j++)
{
if (op == allowedOperations[j])
{
operationIsAllowed = true;
break;
}
}
if (operationIsAllowed)
{
if (data[data.Length - 1] == '+' && data.Length > 0 && (data[data.Length - 1] == 'E'))
{
return(data);
}
//Debug.Log("l1.ToString(): " + MUtil.ExpNotationToDecimalNotation(l1.ToString()) + ", lenght: " + MUtil.ExpNotationToDecimalNotation(l1.ToString()).Length);
string l1Str = MUtil.ToStandardNotationString(l1);
data = data.Remove(data.Length - actualNumber.Length - 1 - l1Str.Length, actualNumber.Length + 1 + l1Str.Length);
noPrevOperators = false;
//l1 = l2;
//actualNumber = MUtil.ExpNotationToDecimalNotation(actualNumber);
if (!DoMaths(ref actualNumber, ref l1, ref l2, ref op, operations[0], ref firstOperation))
{
return("ECONVERSION");
}
data = data.Insert(data.Length, MUtil.ToStandardNotationString(l1));
//i += l1.ToString().Length;
actualNumber = "";
op = operations[0];
//Debug.Log("Data after: " + data);
}
return(data);
}
/// <summary>
/// Calculates data and returns with result multiplied by 100
/// </summary>
/// <param name="args">Empty => user would be prompted to write data, args[0] => automatically calculate these</param>
static void Main(string[] args)
{
const bool testMode = false;
string dataToCalculate = "";
if (args.Length > 0)
{
dataToCalculate = args[0];
}
else if (dataToCalculate.Length == 0 && !testMode)
{
while (dataToCalculate.Length == 0)
{
Debug.Log("Write data to calculate: ", ConsoleColor.White, false);
dataToCalculate = Console.ReadLine();
Console.WriteLine(" ");
}
}
if (dataToCalculate.Length == 0 && !testMode)
{
Debug.FatalError("Data to calculate is empty", -1, 5000);
return;
}
if (dataToCalculate.ToLower() == "f")
{
Debug.Log("To pay respect", ConsoleColor.Yellow);
return;
}
if (!testMode)
{
double result = MathFromString.Calculate(dataToCalculate);
if (double.IsInfinity(result))
{
Debug.LogWarning("Infinity");
}
else
{
Debug.Log("Result: " + MUtil.ToStandardNotationString(result), ConsoleColor.Blue);
}
}
else
{
double result = 0;
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
//dataToCalculate = "sqrt(1-(1256^2/1426789^2))/sin(6732+124)";
const double x = 125123.1532;
dataToCalculate = "(sqrt(2*" + x.ToString() + "+1)-sqrt(" + x.ToString() + "+6))/(2*" + x.ToString() + "^2-7*" + x.ToString() + "-15)";
int retries = 1;
double avg = 0;
int repeats = 0;
while (true)
{
//Debug.Log("Test scientific notation: " + MUtil.ToStandardNotationString(2.5));
double mmath = 0;
double native = 0;
stopwatch.Restart();
for (int i = 0; i < retries; i++)
{
result = MathFromString.Calculate(dataToCalculate);
}
stopwatch.Stop();
mmath = stopwatch.ElapsedTicks - 5;
//Debug.Log("Result: " + result, ConsoleColor.Yellow);
Console.Clear();
Debug.Log("MMathFromString result: " + result, ConsoleColor.Cyan);
Debug.Log("Time for " + retries + " retries: " + stopwatch.ElapsedMilliseconds + "ms, " + (stopwatch.ElapsedTicks - 5) + " ticks", ConsoleColor.Cyan);
Debug.Log("Time per calculation: " + (stopwatch.ElapsedMilliseconds) / (float)retries + "ms, " + (stopwatch.ElapsedTicks - 5) / (float)retries + " ticks\n", ConsoleColor.Cyan);
stopwatch.Restart();
for (int i = 0; i < retries; i++)
{
//result = MUtil.Power(1500,150) * MUtil.Power(1500, 150) / MUtil.Power(1500, 150);
//result = Math.Sin(Math.Pow(4, 1.5));
//result = Math.Sqrt(1 - (Math.Pow(1256, 2) / Math.Pow(1426789, 2))) / Math.Sin(6732 + 124);
result = (Math.Sqrt(2 * x + 1) - Math.Sqrt(x + 6)) / (2 * Math.Pow(x, 2) - 7 * x - 15);
}
stopwatch.Stop();
native = stopwatch.ElapsedTicks - 5;
Debug.Log("Native result: " + result, ConsoleColor.Yellow);
Debug.Log("Time for " + retries + " retries: " + stopwatch.ElapsedMilliseconds + "ms, " + (stopwatch.ElapsedTicks - 5) + " ticks", ConsoleColor.Yellow);
Debug.Log("Time per calculation: " + (stopwatch.ElapsedMilliseconds) / (float)retries + "ms, " + (stopwatch.ElapsedTicks - 5) / (float)retries + " ticks\n", ConsoleColor.Yellow);
repeats++;
avg += (mmath / native);
Debug.Log("\nAbout " + (int)(mmath / native) + "x slower", ConsoleColor.DarkMagenta);
Debug.Log("On averge: " + (int)(avg / repeats) + "x slower", ConsoleColor.Magenta);
Thread.Sleep(500);
}
Environment.Exit((int)(result * 100));
}
}
