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Date: Thu, 09 Mar 2006 11:15:36 +0100
From: Georg Bauhaus <bauhaus@futureapps.de>
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Newsgroups: comp.lang.ada
Subject: Re: help with string splitting
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Date: 2006-03-09T12:09:46+01:00
List-Id: <comp.lang.ada>

isaac2004 wrote:

> an example is this
> Mother would be Mtoehr encrypted

How about a little rearrangement and some functional
decomposition (if you can afford to be a little wasteful
in the first draft):

procedure encrypt (s: Message) is

   type Confusion is array(Positive range s'Range) of Positive;

   function permute(s: Message) return Confusion;


   new_idx: constant Confusion := permute(s);

begin
   for k in s'Range loop
     <copy characters to their new positions via `new_idx`>
   end loop;
end encrypt;