/// <summary>
/// Shows common elements when stopping BF program.
/// </summary>
private void ShowCommonElements_StopRun()
{
// GUI initialization
this.BEditor.IsReadOnly = false;
this.FileMenu.IsEnabled = true;
this.EditMenu.IsEnabled = true;
this.InterpreterMenu.IsEnabled = true;
this.DebuggerMenu.IsEnabled = true;
this.StartDebug.IsEnabled = true;
this.StopDebug.IsEnabled = false;
this.NextStep.IsEnabled = false;
this.RunUntilBP.IsEnabled = false;
this.Title = "NXU Brainfuck Developer";
this.DebuggerTab.IsEnabled = false;
this.RightTab.SelectedIndex = 0;
this.InputTab.IsEnabled = true;
// Dereference input manager
this.inputManager = null;
}
/// <summary>
/// Sets start parameters.
/// </summary>
/// <param name="args">Command line arguments.</param>
private static void SetStartParameters(string[] args)
{
if (args.Length < 1)
{
PrintUsage();
Environment.Exit(2);
}
bool memSet = false;
// Step through the arguments
foreach (var arg in args)
{
if (arg.StartsWith("-it:") || arg.StartsWith("-ib:"))
{
// Input method
if (inputManager != null)
{
Error("Multiple input method definiton: " + arg, 2);
}
if (arg.Length <= 4)
{
Error("Invalid parameter \"-it:\" - no file specified", 2);
}
else
{
Stream source = null;
try
{
source = File.OpenRead(arg.Substring(4, arg.Length - 4));
}
catch(Exception ex)
{
Error("Can't open file for input: " + ex.Message, 2);
}
if (arg.StartsWith("-it:"))
{
// Text mode
inputManager = new TextInputManager(source);
}
else
{
// Binary mode
inputManager = new BinaryInputManager(source);
}
}
}
else if (arg.StartsWith("-m:"))
{
int mem = -1;
// Memory limit
if (memSet)
{
Error("Multiple memory limit definitions", 2);
}
else if (arg.Length <= 3)
{
Error("No memory limit specified", 2);
}
else if (!int.TryParse(arg.Substring(3, arg.Length - 3), out mem) || mem < 0)
{
Error("Invalid memory limit: " + arg.Substring(3, arg.Length - 3), 2);
}
else
{
memoryLimit = mem;
memSet = true;
}
}
else
{
if (codebase != null)
Error("Multiple source files defined or invalid argument: " + arg, 2);
try
{
codebase = File.ReadAllText(arg);
}
catch
{
Error("Error while opening source file: " + arg, 2);
}
}
}
}
/// <summary>
/// Initializes the input manager.
/// </summary>
/// <returns>Brainfuck input function.</returns>
private Func<int> GetInputMethod()
{
if (true == this.CBUseFileInput.IsChecked)
{
// Use file as input source
if (this.inputFileName == null || this.inputFileName.Length < 1)
{
// No file specified!
MessageBox.Show("No input file specified", "Error", MessageBoxButton.OK, MessageBoxImage.Warning);
return null;
}
try
{
// Open file for read
Stream source = File.OpenRead(this.inputFileName);
if (this.CBInputFileMethod.SelectedIndex == 0)
{
// Binary mode
this.inputManager = new BinaryInputManager(source);
}
else
{
// Text mode
this.inputManager = new TextInputManager(source);
}
}
catch (Exception ex)
{
// File I/O error
MessageBox.Show("Error while opening file:\n" + ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
this.CBUseFileInput.IsChecked = false;
return null;
}
}
else
{
// Use inputbox for input (text mode)
this.inputManager = new TextInputManager(this.TBXInputBox.Text);
}
// Use input manager for input function
return new Func<int>(() => this.inputManager.Read());
}
