public virtual void MoveBack(int position)
{
counter = new PositionCounter(before);
while (counter.Position < position)
{
counter.Add(this[counter.Position]);
}
}
public void Test()
{
string[] strings = new[] { "es", " ", "\n", "eju" };
List<Token> tokens = new List<Token>();
PositionCounter feeder = new PositionCounter();
foreach (string s in strings)
{
Token token = new Token();
token.Text = s;
token.Position = feeder.Position;
token.Line = feeder.Line;
token.LinePosition = feeder.LinePosition;
feeder.Add(s);
token.PositionEnd = feeder.Position;
token.LineEnd = feeder.Line;
token.LinePositionEnd = feeder.LinePosition;
tokens.Add(token);
}
Assert.AreEqual(4, tokens.Count);
Assert.AreEqual(0, tokens[0].Position);
Assert.AreEqual(2, tokens[0].PositionEnd);
Assert.AreEqual(0, tokens[0].Line);
Assert.AreEqual(0, tokens[0].LineEnd);
Assert.AreEqual(0, tokens[0].LinePosition);
Assert.AreEqual(2, tokens[0].LinePositionEnd);
Assert.AreEqual(2, tokens[1].Position);
Assert.AreEqual(3, tokens[1].PositionEnd);
Assert.AreEqual(0, tokens[1].Line);
Assert.AreEqual(0, tokens[1].LineEnd);
Assert.AreEqual(2, tokens[1].LinePosition);
Assert.AreEqual(3, tokens[1].LinePositionEnd);
Assert.AreEqual(3, tokens[2].Position);
Assert.AreEqual(4, tokens[2].PositionEnd);
Assert.AreEqual(0, tokens[2].Line);
Assert.AreEqual(1, tokens[2].LineEnd);
Assert.AreEqual(3, tokens[2].LinePosition);
Assert.AreEqual(0, tokens[2].LinePositionEnd);
Assert.AreEqual(4, tokens[3].Position);
Assert.AreEqual(7, tokens[3].PositionEnd);
Assert.AreEqual(1, tokens[3].Line);
Assert.AreEqual(1, tokens[3].LineEnd);
Assert.AreEqual(0, tokens[3].LinePosition);
Assert.AreEqual(3, tokens[3].LinePositionEnd);
}
public PositionCounter(PositionCounter other)
{
Position = other.Position;
Line = other.Line;
LinePosition = other.LinePosition;
}
public virtual void Reset()
{
counter = new PositionCounter();
before = new PositionCounter();
}
public virtual void Release()
{
before = new PositionCounter(counter);
}
public virtual void MoveBack(int position)
{
counter = new PositionCounter(before);
while (counter.Position < position)
{
counter.Add(this[counter.Position]);
}
}
public virtual void Dispose()
{
counter = null;
before = null;
}
public PositionCounter(PositionCounter other)
{
Position = other.Position;
Line = other.Line;
LinePosition = other.LinePosition;
}
public virtual void Dispose()
{
counter = null;
before = null;
}
public virtual void Reset()
{
counter = new PositionCounter();
before = new PositionCounter();
}
public virtual void Release()
{
before = new PositionCounter(counter);
}