public void ConcatenateSmallRopesToRope()
{
StringBuilder b = new StringBuilder();
Rope <char> rope = new Rope <char>();
for (int i = 1; i <= 1000; i++)
{
b.Append(i.ToString());
b.Append(' ');
rope.AddRange(CharRope.Create(i.ToString() + " "));
}
Assert.AreEqual(b.ToString(), rope.ToString());
}
public void ConcatenateSmallRopesToRopeBackwards()
{
StringBuilder b = new StringBuilder();
Rope <char> rope = new Rope <char>();
for (int i = 1; i <= 1000; i++)
{
b.Append(i.ToString());
b.Append(' ');
}
for (int i = 1000; i >= 1; i--)
{
rope.InsertRange(0, CharRope.Create(i.ToString() + " "));
}
Assert.AreEqual(b.ToString(), rope.ToString());
}
public void ConcatenateSmallRopesByInsertionInMiddle()
{
StringBuilder b = new StringBuilder();
Rope <char> rope = new Rope <char>();
for (int i = 1; i <= 1000; i++)
{
b.Append(i.ToString("d3"));
b.Append(' ');
}
int middle = 0;
for (int i = 1; i <= 500; i++)
{
rope.InsertRange(middle, CharRope.Create(i.ToString("d3") + " "));
middle += 4;
rope.InsertRange(middle, CharRope.Create((1001 - i).ToString("d3") + " "));
}
Assert.AreEqual(b.ToString(), rope.ToString());
}
/// <summary>
/// Creates a rope from the specified input.
/// This operation runs in O(N).
/// </summary>
/// <exception cref="ArgumentNullException">input is null.</exception>
public Rope(IEnumerable<T> input)
{
if (input == null)
throw new ArgumentNullException(nameof(input));
if (input is Rope<T> inputRope)
{
// clone ropes instead of copying them
inputRope.Root.Publish();
Root = inputRope.Root;
}
else
{
// ReSharper disable ConditionIsAlwaysTrueOrFalse
// ReSharper disable ExpressionIsAlwaysNull
// ReSharper disable SuspiciousTypeConversion.Global
#pragma warning disable IDE0019 // Use pattern matching
var text = input as string;
#pragma warning restore IDE0019 // Use pattern matching
// ReSharper restore SuspiciousTypeConversion.Global
if (text != null)
// ReSharper restore ConditionIsAlwaysTrueOrFalse
// ReSharper restore ExpressionIsAlwaysNull
// ReSharper disable HeuristicUnreachableCode
{
// if a string is IEnumerable<T>, then T must be char
((Rope<char>)(object)this).Root = CharRope.InitFromString(text);
}
// ReSharper restore HeuristicUnreachableCode
else
{
var arr = ToArray(input);
Root = RopeNode<T>.CreateFromArray(arr, 0, arr.Length);
}
}
Root.CheckInvariants();
}
