public static object EvaluateInput(string input)
{
if (input.Contains("=="))//comparison operator
{
string[] parts = input.Split("==");
object original = Parse.ParseAnything(parts[0]);
//compare all of the following to the original object
for (int i = 1; i < parts.Length; i++)
{
//if not equal, return now
if (!Function.compare(original, Parse.ParseAnything(parts[i])))
{
return(false);
}
}
//if it made it this far, it is equal
return(true);
}
else if (input.Contains('=')) //assignment operator
{
string[] parts = input.Split('=');
if (parts.Length > 2)
{
PrintError("You can only use one assignment operator (=) in one line. (Input.EvaluateInput)");
return(null);
}
string name = parts[0].Trim();
object value = Parse.ParseAnything(parts[1]);
Sandbox.SetVariable(name, value);
return(value);
}
else
{
return(Parse.ParseAnything(input));
}
}
private static void Main(string[] args)
{
Console.Title = "Mathematical Sandbox";
Console.CursorVisible = false;
Console.SetWindowSize(150, 45);
Console.TreatControlCAsInput = false;
saveData = SaveData.Load();
saveData.Update();
Sandbox.LoadVariables(saveData);
//if the background has a color, this will color it all that color
Output.Clear();
Intro();
MainLoop();
Output.Clear();
Sandbox.SaveVariables(saveData);
saveData.Save();
}
private static void Settings()
{
Clear();
string[] options = new string[] { "Text Color", "Background Color", "Debug Mode", "Delete All Variables", "Reset Settings", "Back" };
int optionsChoice = EnterChoiceIndex(options);
while (optionsChoice >= 0)
{
string choice = options[optionsChoice];
switch (choice)
{
case "Text Color":
case "Background Color":
bool foreColor = choice.CompareTo("Text Color") == 0;
string[] colors = Enum.GetNames(typeof(ConsoleColor));
int colorIndex = 0;
string currentColor = Enum.GetName(typeof(ConsoleColor), foreColor ? saveData.ForeColor : saveData.BackColor);
for (int i = 0; i < colors.Length; i++)
{
if (colors[i].CompareTo(currentColor) == 0)
{
colorIndex = i;
}
}
colorIndex = EnterChoiceIndex(colors, colorIndex);
if (colorIndex >= 0)
{
ConsoleColor cc = (ConsoleColor)Enum.Parse(typeof(ConsoleColor), colors[colorIndex]);
//set based on whichever one the user is setting, and do not set it if it is the same color as the opposite
//otherwise you cannot see anything
if (foreColor && saveData.BackColor != cc)
{
saveData.ForeColor = cc;
}
else if (!foreColor && saveData.ForeColor != cc)
{
saveData.BackColor = cc;
}
saveData.Update();
}
break;
case "Debug Mode":
saveData.DebugMode = EnterChoiceIndex(new string[] { "On", "Off" }, "Debug Mode", saveData.DebugMode ? 0 : 1) == 0;
break;
case "Delete All Variables":
if (EnterYesNo("Are you sure you want to delete all saved variables?"))
{
Sandbox.ClearVariables();
}
break;
case "Reset Settings":
if (EnterYesNo("Are you sure you want to reset all settings?"))
{
saveData.ResetSettings();
saveData.Update();
}
break;
case "Back":
return;
}
optionsChoice = EnterChoiceIndex(options, optionsChoice);
}
}
private static void UseFunction(string funcChoice)
{
//get the function itself
System.Reflection.MethodInfo mi = Function.GetFunctionFromFullName(funcChoice);
string funcName = mi.Name;
//get the parameters so we know what to ask
System.Reflection.ParameterInfo[] pis = mi.GetParameters();
object[] args = new object[pis.Length];
Clear();
//LINE 1: Preview of function
//LINE 2: Instructions
//LINE 3: Input
int argsEntered = 0;
while (argsEntered < args.Length)
{
Type t = pis[argsEntered].ParameterType;
Console.SetCursorPosition(0, 0);
PrintPartialFunction(funcName, args);
Console.SetCursorPosition(0, 1);
Console.Write(string.Format("Enter a {0}.{1}", t.Name.ToLower(), new string(' ', 30)));//write the instructions
Console.SetCursorPosition(0, 2);
object input = null;
if (t == typeof(string))
{
input = EnterString();
}
else if (t == typeof(MathNet.Symbolics.SymbolicExpression))
{
input = EnterExpression();
}
else if (t.IsArray)
{
input = ParseDoubleArray(EnterString());
}
else if (t == typeof(int))
{
input = EnterInt();
}
else if (t == typeof(double))
{
input = EnterDouble();
}
else if (t == typeof(bool))
{
input = EnterBool();
}
else
{
input = EnterString();
}
args[argsEntered++] = input;
Console.SetCursorPosition(0, 2);
Console.Write(new string(' ', input.ToString().Length + 1));
}
//input is done, print the output info and then go into sanbox mode
Clear();
object output = Function.EvaluateFunction(funcName, args);
Sandbox.SetVariable("ans", output);
PrintPartialFunction(funcName, args);
PrintLine();
Print(string.Format("ans = {0}", output));
Print("Use ans to refer to your answer.");
PrintLine(2);
Sandbox.SandboxLoop(false);
}
public static void clear()
{
Sandbox.ClearScreen();
}
//example: sin ( max ( 2 , 3 ) / 3 * pi )
//output: 2 3 max 3 / pi * sin
private static string[] GetTokens(string input)
{
List <string> tokens = new List <string>();
StringBuilder current = new StringBuilder();
char lastChar = '\n';
for (int i = 0; i < input.Length; i++)
{
char c = input[i];
if (c == STR_OPEN_CLOSE)
{
int end = FindNextSTRChar(input, i + 1);
tokens.Add(input.Substring(i, end - i + 1));
i = end;
continue;
}
if (c == ARR_OPEN)
{
int end = FindNextCloseIndex(input, i + 1, ARR_OPEN, ARR_CLOSE);
tokens.Add(input.Substring(i, end - i + 1));
i = end;
continue;
}
if (c == EXPR_OPEN)
{
int end = FindNextCloseIndex(input, i + 1, EXPR_OPEN, EXPR_CLOSE);
tokens.Add(input.Substring(i, end - i + 1));
i = end;
continue;
}
//ignore whitespace
if (char.IsWhiteSpace(c))
{
continue;
}
if (char.IsLetterOrDigit(c) || c == '.' || (c == '-' && IsOperator(lastChar)))//letter, number or decimal point
{
current.Append(c);
}
else
{
//must be an operator or something if it got this far
if (current.Length > 0)
{
//add the current thing to the
string thing = current.ToString();
current.Clear();
//try to replace with variable value
thing = Function.TryReplaceConstant(Sandbox.TryReplaceVariable(thing));
//if it has a number at the front, it's a number
if (char.IsDigit(thing[0]))
{
tokens.Add(thing);
}
else
{
//otherwise, it's a function, so add the amount of parameters at the end
//this is used to evaluate functions that have overrides
thing += CountUntilNext(input, i, ARG_PAR, FUNC_CLOSE) + 1;
tokens.Add(thing);
}
}
//add commas
tokens.Add(c.ToString());
}
lastChar = c;
}
//get the last part
if (current.Length > 0)
{
tokens.Add(current.ToString());
}
return(tokens.ToArray());
}
