TW3 - Sliced to Order

Instructions

Blue Teams; expected time to complete < 1 hour.

Create a custom string slicer. 

• Required: A program that gets text and slicing parameters (start and end) from the user and prints out text in pieces using slices.
• Optional: The required program, but which also gets a stride parameter from the user and uses that to create the slice.

• the one from the beginning of the text to the beginning of their slice
• the requested slice
• the one from the end of their slice to the end of the text

Then print out the sliced-up string, indicating where the boundaries are by using the pipe character, |, as a boundary marker.

Another requirement is that at least two of the slicing operations must use a default value for one of the positions (i.e., leave out the value before the colon or leave out the value after the colon in the slice operation).

For instance:

Enter some text, please:
That's impossible! How now, brown cow?
Slice starting position (zero for beginning): 4
Slice ending position (can be negative to count from end): 10
That|'s imp|ossible! How now, brown cow?

And

Enter some text, please:
That's totally possible!
Slice starting position (zero for beginning): 1
Slice ending position (can be negative to count from end): -2
T|hat's totally possibl|e!

Optionally, you can enhance your program to also ask for a stride value. If the user fails to specify a stride, you should default it to one.

Enter some text, please:
What's a stride, anyway?
Slice starting position (zero for beginning): 3
Slice ending position (can be negative to count from end): -4
Stride: 2
Wha|tsasrd,ay|way?