private bool OnTextValidatingEnterInternal(string text, bool hasControl)
{
_cancellationTokenSource = new CancellationTokenSource();
CancellationToken = _cancellationTokenSource.Token;
var elapsed = _clockReplInput.ElapsedMilliseconds;
Template script = null;
object result = null;
string error = null;
int column = -1;
bool isCancelled = false;
try
{
script = Parse(text);
if (script.HasErrors)
{
var errorBuilder = new StringBuilder();
foreach (var message in script.Messages)
{
if (errorBuilder.Length > 0)
{
errorBuilder.AppendLine();
}
if (column <= 0 && message.Type == ParserMessageType.Error)
{
column = message.Span.Start.Column;
}
errorBuilder.Append(message.Message);
}
error = errorBuilder.ToString();
}
else
{
Repl.AfterEditLine.Clear();
HighlightOutput.Clear();
result = EvaluatePage(script.Page);
if (Repl.ExitOnNextEval)
{
return(false);
}
}
}
catch (Exception ex)
{
if (ex is ScriptRuntimeException scriptEx)
{
column = scriptEx.Span.Start.Column;
error = scriptEx.OriginalMessage;
isCancelled = ex is ScriptAbortException;
}
else
{
error = ex.Message;
}
}
if (error != null)
{
Repl.AfterEditLine.Clear();
Repl.AfterEditLine.Append('\n');
Repl.AfterEditLine.Begin(ConsoleStyle.Red);
Repl.AfterEditLine.Append(error);
if (column >= 0 && column <= Repl.EditLine.Count)
{
Repl.EnableCursorChanged = false;
Repl.CursorIndex = column;
Repl.EnableCursorChanged = true;
}
bool emitReturnOnError = hasControl || elapsed < OnErrorToNextLineMaxDelayInMilliseconds || isCancelled;
if (emitReturnOnError)
{
Repl.AfterEditLine.Append('\n');
}
return(emitReturnOnError);
}
else
{
if (result != null)
{
Write(script.Page.Span, result);
}
var resultStr = Output.ToString();
var output = Output as StringBuilderOutput;
if (output != null)
{
output.Builder.Length = 0;
}
Repl.AfterEditLine.Clear();
bool hasOutput = resultStr != string.Empty || HighlightOutput.Count > 0;
if (!Repl.IsClean || hasOutput)
{
Repl.AfterEditLine.Append('\n');
bool hasNextOutput = HighlightOutput.Count > 0;
if (hasNextOutput)
{
Repl.AfterEditLine.AddRange(HighlightOutput);
HighlightOutput.Clear();
}
if (resultStr != string.Empty)
{
if (hasNextOutput)
{
Repl.AfterEditLine.AppendLine();
}
Repl.AfterEditLine.Begin(ConsoleStyle.Bold);
Repl.AfterEditLine.Append(resultStr);
}
if (hasOutput)
{
Repl.AfterEditLine.AppendLine();
}
}
}
return(true);
}
public void ClearScreen()
{
Repl?.Clear();
HighlightOutput.Clear();
}
