// Delete
// Deletes a substring from an existing rope structure from indexes i - j
public Ropes <T> Delete(int i, int j)
{
Ropes <T> splitrope = Split(j); // split the rope at second index
_ = Split(i); // split the rope at first index and discard (what we wanted to delete)
return(Concatenate(splitrope)); // concatenate the "bookend" ropes back together
}
// Insert
// Inserts a substring into an existing rope structure at index i
public Ropes <T> Insert(char[] S, int i)
{
int length = 0;
foreach (char element in S)
{
if (element != default(char))
{
length++; // determine length of S
}
}
Ropes <T> newrope = new Ropes <T>(); // create new rope
newrope.Rope(S); // Create a new rope with the string to be inserted
Ropes <T> splitrope = Split(i); // Split current rope at index i
newrope = newrope.Concatenate(splitrope); // concatenate the new rope of S the the split rope (middle & last)
return(Concatenate(newrope)); // concatenate the rope to the previously concatenated rope (first & middle)
}
