public IEnumerable <string> BackEnumerator()
{
DoubleNode current = tail;
while (current != null)
{
yield return(current.Data);
current = current.Previous;
}
}
IEnumerator <string> IEnumerable <string> .GetEnumerator()
{
DoubleNode current = head;
while (current != null)
{
yield return(current.Data);
current = current.Next;
}
}
public bool Contains(string data)
{
DoubleNode current = head;
while (current != null)
{
if (current.Data.Equals(data))
{
return(true);
}
current = current.Next;
}
return(false);
}
public void Add(string data)
{
DoubleNode node = new DoubleNode(data);
if (head == null)
{
head = node;
}
else
{
tail.Next = node;
node.Previous = tail;
}
tail = node;
count++;
}
public void AddFirst(string data)
{
DoubleNode node = new DoubleNode(data);
DoubleNode temp = head;
node.Next = temp;
head = node;
if (count == 0)
{
tail = head;
}
else
{
temp.Previous = node;
}
count++;
}
public void Deserialize(FileStream stream)
{
List <DoubleNode> arr = new List <DoubleNode>();
DoubleNode temp = new DoubleNode();
int Count = 0;
head = temp;
string line;
try
{ using (StreamReader StreamRead = new StreamReader(stream))
{ while ((line = StreamRead.ReadLine()) != null)
{
if (!line.Equals(""))
{
Count++;
temp.Data = line;
DoubleNode next = new DoubleNode();
temp.Next = next;
arr.Add(temp);
next.Previous = temp;
temp = next;
}
}
}
tail = temp.Previous;
tail.Next = null;
foreach (DoubleNode n in arr)
{
n.Data = n.Data.Split(':')[0];
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.Read();
Environment.Exit(0);
}
}
public bool Remove(string data)
{
DoubleNode current = head;
while (current != null)
{
if (current.Data.Equals(data))
{
break;
}
current = current.Next;
}
if (current != null)
{
if (current.Next != null)
{
current.Next.Previous = current.Previous;
}
else
{
tail = current.Previous;
}
if (current.Previous != null)
{
current.Previous.Next = current.Next;
}
else
{
head = current.Next;
}
count--;
return(true);
}
return(false);
}
public void Clear()
{
head = null;
tail = null;
count = 0;
}
