static void EnterCommand()
{
Console.WriteLine("\nEnter Command...");
expression = Console.ReadLine();
List <char> items;
string formulaReversed;
expression = Regex.Replace(expression, @"\s+", " ");
if (expression.EndsWith(" "))
{
expression = expression.Remove(expression.Length - 1);
}
string[] words = expression.Split(' ');
string firstWord = words[0].ToLower();
Console.WriteLine();
try
{
switch (firstWord)
{
case "enter":
formula = "";
expression = expression.Remove(0, 6);
expression = expression.Replace(" ", "");
items = ConvertToPref(expression);
if (items.Count == 0)
{
Console.ReadLine();
return;
}
formulaReversed = "";
for (int i = 0; i < items.Count; i++)
{
formula += items[i];
}
tree = new CTree(formula[0], formula);
compCommand(1);
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Formula accepted!");
Console.ResetColor();
EnterCommand();
break;
case "comp":
compCommand();
break;
case "vars":
tree.printVars();
EnterCommand();
break;
case "join":
string tempFormula = formula;
formula = "";
expression = expression.Remove(0, 4);
items = ConvertToPref(expression);
if (items.Count == 0)
{
Console.ReadLine();
return;
}
formulaReversed = "";
for (int i = 0; i < items.Count; i++)
{
Console.Write("{0}", items[i]);
formula += items[i];
}
for (int i = items.Count - 1; i >= 0; i--)
{
formulaReversed += items[i];
}
treeJoin = new CTree(formula[0], formulaReversed);
tree.Join(treeJoin);
formula = tempFormula + formula;
EnterCommand();
break;
case "print":
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine(formula);
Console.ResetColor();
EnterCommand();
break;
case "quit":
Console.Clear();
Console.ForegroundColor = ConsoleColor.DarkRed;
Console.WriteLine("Good-bye!");
Console.ResetColor();
break;
case "\\help":
commandList();
EnterCommand();
break;
case "\\clear":
Console.Clear();
EnterCommand();
break;
default:
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Unknown command! Try again.");
Console.ResetColor();
EnterCommand();
break;
}
}
catch (Exception)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine($"\nTry again!");
Console.ResetColor();
EnterCommand();
}
}
public void Join(CTree temp)
{
rootNode.joine(temp.rootNode);
this.formula += temp.formula;
}