private static void ViReplaceUntilEsc(ConsoleKeyInfo?key, object arg)
{
if (_singleton._current >= _singleton._buffer.Length)
{
Ding();
return;
}
int startingCursor = _singleton._current;
StringBuilder deletedStr = new StringBuilder();
ConsoleKeyInfo nextKey = ReadKey();
while (!nextKey.EqualsNormalized(Keys.Escape) && !nextKey.EqualsNormalized(Keys.Enter))
{
if (nextKey.EqualsNormalized(Keys.Backspace))
{
if (_singleton._current == startingCursor)
{
Ding();
}
else
{
if (deletedStr.Length == _singleton._current - startingCursor)
{
_singleton._buffer[_singleton._current - 1] = deletedStr[deletedStr.Length - 1];
deletedStr.Remove(deletedStr.Length - 1, 1);
}
else
{
_singleton._buffer.Remove(_singleton._current - 1, 1);
}
_singleton._current--;
_singleton.Render();
}
}
else if (nextKey.ShouldInsert())
{
if (_singleton._current >= _singleton._buffer.Length)
{
_singleton._buffer.Append(nextKey.KeyChar);
}
else
{
deletedStr.Append(_singleton._buffer[_singleton._current]);
_singleton._buffer[_singleton._current] = nextKey.KeyChar;
}
_singleton._current++;
_singleton.Render();
}
nextKey = ReadKey();
}
if (_singleton._current > startingCursor)
{
_singleton.StartEditGroup();
string insStr = _singleton._buffer.ToString(startingCursor, _singleton._current - startingCursor);
_singleton.SaveEditItem(EditItemDelete.Create(deletedStr.ToString(), startingCursor));
_singleton.SaveEditItem(EditItemInsertString.Create(insStr, startingCursor));
_singleton.EndEditGroup();
}
if (nextKey.EqualsNormalized(Keys.Enter))
{
ViAcceptLine(nextKey);
}
}