void Initialize(ExpressionEvaluationCommandDelegate evalCommandDelegate = null)
{
if (evalCommandDelegate == null && CommandLineProcessor != null)
{
_evalCommandDelegate = CommandLineProcessor.Eval;
}
ViewSizeChanged += (o, e) =>
{
if (_inputReaderThread != null)
{
lock (ConsoleLock)
{
Out.Echo(_prompt);
_beginOfLineCurPos = Out.CursorPos;
Out.ConsolePrint(_inputReaderStringBuilder.ToString());
}
}
};
WorkAreaScrolled += (o, e) =>
{
if (_inputReaderThread != null)
{
lock (ConsoleLock)
{
_beginOfLineCurPos.X += e.DeltaX;
_beginOfLineCurPos.Y += e.DeltaY;
var p = Out.CursorPos;
var(id, left, top, width, height) = ActualWorkArea();
var txt = _inputReaderStringBuilder.ToString();
if (!string.IsNullOrWhiteSpace(txt))
{
var index = Out.GetIndexInWorkAreaConstraintedString(txt, _beginOfLineCurPos, p);
var slines = Out.GetWorkAreaStringSplits(txt, _beginOfLineCurPos).Splits;
if (Out.CursorTop == slines.Min(o => o.Y))
{
Out.CursorLeft = left;
Out.Echo(_prompt);
}
var enableConstraintConsolePrintInsideWorkArea = EnableConstraintConsolePrintInsideWorkArea;
EnableConstraintConsolePrintInsideWorkArea = false;
foreach (var sline in slines)
{
if (sline.Y >= top && sline.Y <= height)
{
Out.SetCursorPos(sline.X, sline.Y);
Out.ConsolePrint("".PadLeft(width - sline.X, ' '));
Out.SetCursorPos(sline.X, sline.Y);
Out.ConsolePrint(sline.Text);
}
}
EnableConstraintConsolePrintInsideWorkArea = enableConstraintConsolePrintInsideWorkArea;
Out.SetCursorPos(p);
}
}
}
};
}
public CommandLineReader(
CommandLineProcessor commandLineProcessor = null,
string prompt = null,
ExpressionEvaluationCommandDelegate evalCommandDelegate = null)
{
CommandLineProcessor = commandLineProcessor;
if (CommandLineProcessor != null && CommandLineProcessor != null)
{
CommandLineProcessor.CommandLineReader = this;
}
_defaultPrompt = prompt ?? $"> ";
Initialize(evalCommandDelegate);
}
public void ProcessCommandLine(
string commandLine,
ExpressionEvaluationCommandDelegate evalCommandDelegate,
bool outputStartNextLine = false,
bool enableHistory = false,
bool enablePrePostComOutput = true)
{
if (commandLine != null)
{
if (outputStartNextLine)
{
Out.LineBreak();
}
ExpressionEvaluationResult expressionEvaluationResult = null;
try
{
sc.CancelKeyPress += CancelKeyPress;
CommandLineProcessor.CancellationTokenSource = new CancellationTokenSource();
Out.IsModified = false;
Err.IsModified = false;
var task = Task.Run <ExpressionEvaluationResult>(
() => evalCommandDelegate(
CommandLineProcessor.CommandEvaluationContext,
commandLine,
_prompt == null ? 0 : Out.GetPrint(_prompt).Length, // TODO has no sens with multi line prompt !!!
(enablePrePostComOutput && CommandLineProcessor != null) ?
CommandLineProcessor.CommandEvaluationContext.ShellEnv.GetValue <string>(ShellEnvironmentVar.settings_clr_comPreAnalysisOutput) : ""),
CommandLineProcessor.CancellationTokenSource.Token
);
try
{
try
{
task.Wait(CommandLineProcessor.CancellationTokenSource.Token);
}
catch (ThreadInterruptedException)
{
// get interrupted after send input
}
expressionEvaluationResult = task.Result;
}
catch (OperationCanceledException)
{
//var res = task.Result;
expressionEvaluationResult = task.Result;
Out.Warningln($"command canceled: {commandLine}");
}
finally { }
}
catch (Exception ex)
{
LogError(ex);
}
finally
{
if (enablePrePostComOutput && CommandLineProcessor != null)
{
if (Out.IsModified || Err.IsModified)
{
if (!(Out.CursorLeft == 0 && Out.CursorTop == 0))
{
Out.Echo(CommandLineProcessor.CommandEvaluationContext.ShellEnv.GetValue <string>(ShellEnvironmentVar.settings_clr_comPostExecOutModifiedOutput));
}
}
Out.Echo(CommandLineProcessor.CommandEvaluationContext.ShellEnv.GetValue <string>(ShellEnvironmentVar.settings_clr_comPostExecOutput));
}
CommandLineProcessor.CancellationTokenSource.Dispose();
CommandLineProcessor.CancellationTokenSource = null;
sc.CancelKeyPress -= CancelKeyPress;
}
}
if (enableHistory && !string.IsNullOrWhiteSpace(commandLine))
{
CommandLineProcessor.CmdsHistory.HistoryAppend(commandLine);
}
}
public void ProcessCommandLine(
string commandLine,
ExpressionEvaluationCommandDelegate evalCommandDelegate,
bool outputStartNextLine = false,
bool enableHistory = false)
{
if (commandLine != null)
{
if (outputStartNextLine)
{
Out.LineBreak();
}
ExpressionEvaluationResult expressionEvaluationResult = null;
try
{
sc.CancelKeyPress += CancelKeyPress;
CommandLineProcessor.CancellationTokenSource = new CancellationTokenSource();
var task = Task.Run <ExpressionEvaluationResult>(
() => evalCommandDelegate(CommandLineProcessor.CommandEvaluationContext, commandLine, _prompt == null ? 0 : Out.GetPrint(_prompt).Length),
CommandLineProcessor.CancellationTokenSource.Token
);
try
{
try
{
task.Wait(CommandLineProcessor.CancellationTokenSource.Token);
} catch (ThreadInterruptedException) {
// get interrupted after send input
}
expressionEvaluationResult = task.Result;
}
catch (OperationCanceledException)
{
var res = task.Result;
Warningln($"command canceled: {commandLine}");
}
finally
{
}
}
catch (Exception ex)
{
LogError(ex);
}
finally
{
CommandLineProcessor.CancellationTokenSource.Dispose();
CommandLineProcessor.CancellationTokenSource = null;
sc.CancelKeyPress -= CancelKeyPress;
lock (ConsoleLock)
{
/*if (!WorkArea.rect.IsEmpty && (WorkArea.rect.Y != CursorTop || WorkArea.rect.X != CursorLeft))
* LineBreak();*/// case of auto line break (spacing)
//Out.RestoreDefaultColors(); // FGZ removed
}
}
}
if (enableHistory && !string.IsNullOrWhiteSpace(commandLine))
{
CommandLineProcessor.CmdsHistory.HistoryAppend(commandLine);
}
}
