public bool erase()
{
if (!builder.erase())
{
return(false);
}
if (sequence.Count == 0)
{
return(true);
}
SequenceElement last = sequence.Last <SequenceElement>();
builder = new BuiltElement(last);
sequence.Remove(last);
return(false);
}
public void add(SequenceElement element)
{
sequence.Add(element);
}
public BuiltElement(SequenceElement element) : base(element.Name)
{
changeType(SequenceElementType.Built);
built = new StringBuilder(name);
}