private void backofElement(LaTeXElementParser parser)
{
var searchingForType = parser.GetEmptyElement().GetType();
for (var i = _elementsList.Count - 1; i >= 0; i--)
{
if (_elementsList[i].GetType() == searchingForType)
{
var remoevEl = _elementsList.Count - i - 1;
_elementsList.RemoveRange(i, remoevEl);
_parserList.RemoveRange(i, remoevEl);
break;
}
}
}
