/// <summary>
/// Displays the current state of the Clifford Engine
/// </summary>
/// <param name="stack">Stack reference</param>
/// <param name="instructions">Remaining instructions reference</param>
private static void DisplayEngineState(CliffordStack stack, CliffordInstructionQueue instructions = null)
{
Console.WriteLine(stack.ToString());
if (instructions != null)
{
Console.WriteLine(instructions.ToString());
}
}
/// <summary>
/// Clifford Engine entry point
/// </summary>
/// <param name="args">Unused</param>
static void Main(string[] args)
{
CliffordProgramCodeCollection codes = new CliffordProgramCodeCollection();
CliffordInstructionQueue instructions = new CliffordInstructionQueue();
CliffordStack stack = new CliffordStack();
// Get codes as a whitespace-separated string
string input = Console.ReadLine();
// Tokenise on whitespace
string[] commandsString = input.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string command in commandsString)
{
if (!codes.Add(command))
{
Console.WriteLine("Warning. Failed to parse command: " + command);
}
}
// Generate Instructions
instructions = codes.GenerateInstructions();
if (instructions == null)
{
Console.WriteLine("Error generating instructions. Check input.");
return;
}
// Execute Instructions
while (!instructions.IsEmpty())
{
#if DEBUG
DisplayEngineState(stack, instructions);
#endif
CliffordInstruction instruction = instructions.FetchInstruction();
if (instruction != null)
{
stack.ExecuteInstruction(instruction);
}
}
// Display resultant stack
DisplayEngineState(stack);
// Stay alive!
Console.ReadLine();
}