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From: Jacob Sparre Andersen <jacob@jacob-sparre.dk>
Subject: Re: Bug in Ada - Latin 1 is not a subset of  UTF-8
Date: Mon, 17 Oct 2016 22:57:33 +0200
Date: 2016-10-17T22:57:33+02:00	[thread overview]
Message-ID: <87funuae2q.fsf@adaheads.sparre-andersen.dk> (raw)
In-Reply-To: 86f0d2fe-d498-4bc4-bb9d-e34629c89bb4@googlegroups.com

Lucretia wrote:

> Whilst binding SDL_TTF function, I was going to Overload the TTF_Size*
> functions, but I couldn't do that because UTF_8_String is a subtype of
> String; String is Latin 1 and Latin 1 is not a subset of UTF-8, ASCII
> is.
>
> UTF_String should be implemented as an array like String and then
> UTF_8_String should be a subtype of UTF_String or a renaming, if that
> is the intent.

I think the best you can do is to ignore the subtypes declared in
Ada.Strings.UTF_Encoding (as they are just plain wrong), and declare
your own type for storing UTF-8 encoded strings.

Greetings,

Jacob
-- 
"There are only two types of data:
                         Data which has been backed up
                         Data which has not been lost - yet"

  reply	other threads:[~2016-10-17 20:57 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-17 20:18 Bug in Ada - Latin 1 is not a subset of UTF-8 Lucretia
2016-10-17 20:57 ` Jacob Sparre Andersen [this message]
2016-10-18  5:44   ` J-P. Rosen
2016-10-17 23:25 ` G.B.
2016-10-18  7:41   ` Dmitry A. Kazakov
2016-10-18  8:23     ` G.B.
2016-10-18  8:45       ` Dmitry A. Kazakov
2016-10-18 10:09         ` G.B.
2016-10-18 12:24           ` Dmitry A. Kazakov
2016-10-18 15:10             ` G.B.
2016-10-18 16:35               ` Dmitry A. Kazakov
2016-10-18 17:35                 ` G.B.
2016-10-18 20:03                   ` Dmitry A. Kazakov
2016-10-19  8:15                     ` G.B.
2016-10-19  8:25                       ` G.B.
2016-10-19  8:49                       ` Dmitry A. Kazakov
2016-10-19 14:20                         ` G.B.
2016-10-19 16:20                           ` Dmitry A. Kazakov
2016-10-20  0:31         ` Randy Brukardt
2016-10-20  7:36           ` Dmitry A. Kazakov
2016-10-21 12:28             ` G.B.
2016-10-21 16:13               ` Lucretia
2016-10-21 16:43                 ` Dmitry A. Kazakov
2016-10-22  5:51                   ` G.B.
2016-10-22  7:49                     ` Dmitry A. Kazakov
2016-10-24 11:35                       ` Luke A. Guest
2016-10-24 13:01                         ` Dmitry A. Kazakov
2016-10-24 14:54                           ` Luke A. Guest
2016-10-22  1:53             ` Randy Brukardt
2016-10-28 21:08         ` Shark8
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