public static void Run()
{
// Instance variables
string stringInput;
bool validInput;
int integerInput;
string result;
while (true)
{
#region Menu
Console.WriteLine("Numeral Registry");
Console.WriteLine("M - 1000");
Console.WriteLine("D - 500");
Console.WriteLine("C - 100");
Console.WriteLine("L - 50");
Console.WriteLine("X - 10");
Console.WriteLine("V - 5");
Console.WriteLine("I - 1\n");
Console.WriteLine("Please enter an integer value OR roman numeral to be converted...");
#endregion
Console.ForegroundColor = ConsoleColor.Green;
Console.Write("\nInput: ");
Console.ResetColor();
try
{
stringInput = Console.ReadLine().ToUpper();
}
catch (Exception e)
{
if (e is OutOfMemoryException || e is ArgumentOutOfRangeException || e is System.IO.IOException)
{
throw new UserDefinedException("Error encountered: " + e.Message);
}
stringInput = String.Empty;
}
validInput = int.TryParse(stringInput, out integerInput);
try
{
if (String.IsNullOrEmpty(stringInput))
{
throw new UserDefinedException();
}
}
catch (Exception e)
{
if (e is UserDefinedException)
{
Console.WriteLine("Error encountered: {0}. No empty strings allowed.",
e.Message);
}
}
try
{
ValidateSequence(stringInput);
}
catch (Exception e)
{
stringInput = string.Empty;
if (e is UserDefinedException)
{
Console.WriteLine("Error encountered: {0} Roman Numeral sequence was incorrect", e.Message);
}
}
if (!(String.IsNullOrEmpty(stringInput)))
{
if (validInput)
{
result = String.Format("{0} = {1}", stringInput, converter.ConvertToRomanNumeral(integerInput));
}
else
{
try
{
if (stringInput.All(c => Enum.IsDefined(typeof(RomanNumeralsType), c.ToString())))
{
result = String.Format("{0} = {1}", stringInput, converter.ConvertToInteger(stringInput).ToString());
}
else
{
throw new UserDefinedException();
}
}
catch (Exception e)
{
if (e is UserDefinedException)
{
Console.WriteLine("Error encountered: " + e.Message + " Write either all numerals or digits.");
}
}
}
}
Console.Write("\nPress any key...");
Console.ReadKey();
Console.Clear();
}
}
public static void Run()
{
// Instance variables
string stringInput;
bool validInput;
int integerInput;
while (true)
{
#region Menu
Console.WriteLine("Numeral Registry");
Console.WriteLine("M - 1000");
Console.WriteLine("D - 500");
Console.WriteLine("C - 100");
Console.WriteLine("L - 50");
Console.WriteLine("X - 10");
Console.WriteLine("V - 5");
Console.WriteLine("I - 1\n");
Console.WriteLine("Please enter an integer value OR roman numeral to be converted...");
#endregion
Console.ForegroundColor = ConsoleColor.Green;
Console.Write("\nInput: ");
Console.ResetColor();
bool validSequence = true;
stringInput = Console.ReadLine().ToUpper();
validInput = int.TryParse(stringInput, out integerInput);
try
{
ValidateNumeralSequence(stringInput);
}
catch (NonValidSequence e)
{
Console.WriteLine("{0}. Input is not in a valid sequence.", e.Message);
validSequence = false;
}
if (stringInput == "0")
{
Console.WriteLine("The latin equivalence of 0 is 'nulla'");
}
else if (!(String.IsNullOrEmpty(stringInput)) && validSequence == true)
{
if (validInput)
{
try
{
AllowedNumbers(integerInput, stringInput);
}
catch (InvalidNumberException e)
{
Console.WriteLine(e.Message + ": Only numbers between 0 - 4999 allowed.");
}
}
else
{
try
{
if (stringInput.All(c => Enum.IsDefined(typeof(RomanNumeralsType), c.ToString())))
{
result = String.Format("{0} = {1}", stringInput, converter.ConvertToInteger(stringInput).ToString());
Console.WriteLine(result);
}
else
{
throw new NonValidNumeralException();
}
}
catch (NonValidNumeralException e)
{
Console.WriteLine("NonValidNumeralException thrown: {0} is not a valid Roman Numeral.", stringInput);
}
}
}
else if (String.IsNullOrEmpty(stringInput))
{
Console.WriteLine("No empty strings are allowed.");
}
Console.Write("\nPress any key...");
Console.ReadKey();
Console.Clear();
}
}