private static AddInToken ChooseCalculator(Collection <AddInToken> tokens)
{
List <AddInToken> unreliableTokens = UnhandledExceptionHelper.GetUnreliableTokens();
if (tokens.Count == 0)
{
Console.WriteLine("No calculators are available");
return(null);
}
Console.WriteLine("Available Calculators: ");
for (int i = 0; i < tokens.Count; i++)
{
String warning = "";
if (unreliableTokens.Contains(tokens[i]))
{
warning = "{ Possibly Unreliable }";
}
Console.WriteLine(String.Format("\t{0}. {1}{2}", (i + 1).ToString(), tokens[i].Name, warning));
}
Console.WriteLine("Which calculator do you want to use?");
String line = Console.ReadLine();
int selection;
if (Int32.TryParse(line, out selection))
{
if (selection <= tokens.Count)
{
return(tokens[selection - 1]);
}
}
Console.WriteLine("Invalid selection: {0}. Please choose again.", line);
return(ChooseCalculator(tokens));
}
private static bool RunCalculator(Calculator calc)
{
if (calc == null)
{
//No calculators were found, read a line and exit
Console.ReadLine();
}
UnhandledExceptionHelper.LogUnhandledExceptions(calc);
Console.WriteLine("Available operations: " + calc.Operations);
Console.WriteLine("Type \"exit\" to exit, type \"reload\" to reload");
String line = Console.ReadLine();
while (!line.Equals("exit"))
{
if (line.Equals("reload"))
{
return(true);
}
//We have a very simple parser, if anything unexpected happens just ask the user to try again.
try
{
Command c = new Command(line);
Console.WriteLine(calc.Operate(new MyOperate(c.Action, c.A, c.B)));
}
catch
{
Console.WriteLine("Invalid command: {0}. Commands must be formated: [number] [operation] [number]", line);
Console.WriteLine("Available operations: " + calc.Operations);
}
line = Console.ReadLine();
}
return(false);
}
void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
UnhandledExceptionHelper.AddTokenToUnreliableList(_token);
}
