private void Update(EvaluationContext context)
{
Builder.Value = _builder;
if (ClearTrigger.GetValue(context))
{
_builder.Clear();
}
}
private void Update(EvaluationContext context)
{
var maxLength = MaxLength.GetValue(context);
var stringBuilder = InputBuffer.GetValue(context);
var lastIndex = _index;
if (maxLength <= 0)
{
Result.Value = String.Empty;
return;
}
if (!InputBuffer.IsConnected || stringBuilder == null)
{
stringBuilder = _fallbackBuffer;
}
if (ClearTrigger.GetValue(context))
{
stringBuilder.Clear();
_index = 0;
}
//var mode = (Modes)WriteMode.GetValue(context);
try
{
if (Insert.GetValue(context))
{
if (TriggerRandomPos.GetValue(context))
{
_index = (int)_random.NextLong(0, stringBuilder.Length);
}
var separator = Separator.GetValue(context);;
if (!string.IsNullOrEmpty(separator))
{
separator = separator.Replace("\\n", "\n");
}
var str = InsertString.GetValue(context);
var insertString = str + separator;
var insertLength = insertString.Length;
var currentLength = stringBuilder.Length;
var lineWrap = (WrapLinesModes)WrapLines.GetValue(context);
var mode = (Modes)WriteMode.GetValue(context);
if (_index > maxLength)
{
_index = 0;
}
var pos = _index;
if (pos + insertLength > maxLength)
{
insertLength = maxLength - pos;
}
if (mode != Modes.Insert && pos < currentLength - insertLength)
{
stringBuilder.Remove(pos, insertLength);
}
if (pos > currentLength)
{
var fillString = FillCharacter.GetValue(context);
var fillChar = string.IsNullOrEmpty(fillString) ? '_' : fillString[0];
stringBuilder.Append(new string(fillChar, pos - currentLength));
}
stringBuilder.Insert(pos, insertString);
InsertLineWraps(lineWrap, stringBuilder, pos, insertLength, WrapLineColumn.GetValue(context).Clamp(1, 1000));
switch (mode)
{
case Modes.Insert:
{
_index += insertLength;
break;
}
case Modes.Overwrite:
{
_index += insertLength;
_index %= maxLength;
break;
}
case Modes.OverwriteAtFixedOffset:
_index += FillOffset.GetValue(context);
if (_index > maxLength)
{
_index = _index % maxLength;
}
else if (_index < 0)
{
_index += maxLength - insertLength;
}
break;
default:
throw new ArgumentOutOfRangeException();
}
//InsertLineWraps(lineWrap, stringBuilder);
if (stringBuilder.Length > maxLength)
{
stringBuilder.Length = maxLength;
}
}
}
catch (Exception e)
{
Log.Warning($"Failed to manipulate string at index {_index} " + e.Message);
}
//
Builder.Value = stringBuilder;
Result.Value = stringBuilder.ToString();
}
