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From: "G.B." <bauhaus@notmyhomepage.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Multiple iterators for a type
Date: Sat, 26 May 2018 09:14:57 +0200
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Date: 2018-05-26T09:14:57+02:00
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On 26.05.18 05:57, Luke A. Guest wrote:
> Stephen Leake <> wrote:
> 
>> An "iterator" can be anything you want it to be. As Randy pointed out,
>> there can be only one that gets special treatment from the compiler, but
>> you did not mention that as a requirement.
>>
> 
> I’m attempting to implement a Unicode string using UTF-8, so I want the
> basic iterator over octets, then the next will iterate over the octets and
> generate code points, then another will be graphème clusters.

Would layering work where each layer uses
   Has_Element
   Next

This should then work with streams, too, that is,
with open ended arrays read from some source.