Tutorial creates confusion about slices

[Antoon Pardon]

The following is part of the explanation on slices in the
tutorial:

The best way to remember how slices work is to think of the indices as
pointing between characters, with the left edge of the first character
numbered 0. Then the right edge of the last character of a string of n
characters has index n, for example:

  +---+---+---+---+---+ 
  | H | e | l | p | A |
  +---+---+---+---+---+ 
  0   1   2   3   4   5 
 -5  -4  -3  -2  -1

This is all very well with a simple slice like:

  "HelpA"[2:4]    =>     "lp"


But it give the wrong idea when using the following extended slice:

  "HelpA"[4:2:-1]   =>   "Ap"

So this doesn't result in the reverse of the previous expression while
the explanation above suggest it does.


So I suggest to drop this.


-- 
Antoon Pardon