private static void DisplayExceptionDetails(Exception ex)
{
C.Wl("\n**********\nERROR!: " + ex.Message + "\n**********\n");
if (C.PromptUser("stacktrace?:").ToUpper().StartsWith("Y", StringComparison.Ordinal))
{
C.Wl(ex.StackTrace);
}
}
/// <summary>
/// Starts the shell loop. Prior to entering the loop any Intro text
/// will be printed to the console, and the PreLoop method will be
/// executed.
///
/// </summary>
public void CmdLoop()
{
if (_isInLoop)
{
return; // just in case of multithreaded shennanigans
}
_isInLoop = true;
if (!_isInitialized)
{
InitCommandDictionary();
}
if (!string.IsNullOrWhiteSpace(Intro) && Intro.Length > 0)
{
C.Wl(Intro);
}
PreLoop();
var editor = new LineEditor(HistoryFileName);
if (DoAutoComplete)
{
var list = new List <string>(_commands.Keys);
editor.SetAutoCompleteCommandList(list);
}
IsExiting = false; // We should reset the exit condition priort to entering.
while (!IsExiting)
{
try
{
var userInput = editor.Edit(CommandPrompt, "");
userInput = PreCmd(userInput);
if (userInput == null)
{
// ctrl-D will return null, this should exit the loop
// without running the PostCmd method.
ExitLoop();
continue;
}
HandleCommandString(userInput);
PostCmd(userInput);
// At this point it is safe to save the command history.
// Any commands that cause an exception should not be saved to
// history.
editor.SaveHistory();
}
catch (Exception ex)
{
HandleException(ex);
}
}
PostLoop();
}
public virtual void Default(string line)
{
if (string.IsNullOrWhiteSpace(line))
{
C.Wl("Illegal command entered.");
}
else
{
var cmdName = line.Split(" ".ToCharArray());
C.Wl($"Command '{cmdName[0]}' is not defined.");
}
}
