public override string DisplayObject()
{
StringBuilder repr = new StringBuilder("(");
repr.Append(DisplayValue());
CTObject tail = cdr;
while (true)
{
if (tail.GetType() == typeof(CTPair))
{
CTPair rest = (CTPair)tail;
repr.Append(" ").Append(rest.DisplayValue());
tail = rest.cdr;
}
else
{
if (tail.GetType() != typeof(CTEmptyList))
{
repr.Append(" . ").Append(tail.DisplayObject());
}
break;
}
}
repr.Append(")");
return(repr.ToString());
}
public string DisplayValue()
{
return(car.DisplayObject());
}
