From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: Ada and Unicode
Date: Tue, 20 Apr 2021 14:13:30 -0500 [thread overview]
Message-ID: <s5n94r$ckk$1@franka.jacob-sparre.dk> (raw)
In-Reply-To: s5k0ai$bb5$1@dont-email.me
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"J-P. Rosen" <rosen@adalog.fr> wrote in message
news:s5k0ai$bb5$1@dont-email.me...
> Le 19/04/2021 à 15:00, Luke A. Guest a écrit :
>> They're different types and should be incompatible, because, well, they
>> are. What does Ada have that allows for this that other languages
>> doesn't? Oh yeah! Types!
>
> They are not so different. For example, you may read the first line of a
> file in a string, then discover that it starts with a BOM, and thus decide
> it is UTF-8.
>
> BTW, the very first version of this AI had different types, but the ARG
> felt that it would just complicate the interface for the sake of abusive
> "purity".
Unfortunately, that was the first instance that showed the beginning of the
end for Ada. If I remember correctly (and I may not ;-), that came from some
people who were wedded to the Linux model where nothing is checked (or IMHO,
typed). For them, a String is simply a bucket of octets. That prevented
putting an encoding of any sort of any type on file names ("it should just
work on Linux, that's what people expect"). The rest follows from that.
Those of us who care about strong typing were disgusted, the result
essentially does not work on Windows or MacOS (which do check the content of
file names - as you can see in GNAT compiling units with non-Latin-1
characters in their names), and I don't really expect any recovery from
that.
Randy.
next prev parent reply other threads:[~2021-04-20 19:13 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-17 22:03 Ada and Unicode DrPi
2021-04-18 0:02 ` Luke A. Guest
2021-04-19 9:09 ` DrPi
2021-04-19 8:29 ` Maxim Reznik
2021-04-19 9:28 ` DrPi
2021-04-19 13:50 ` Maxim Reznik
2021-04-19 15:51 ` DrPi
2021-04-19 11:15 ` Simon Wright
2021-04-19 11:50 ` Luke A. Guest
2021-04-19 15:53 ` DrPi
2022-04-03 19:20 ` Thomas
2022-04-04 6:10 ` Vadim Godunko
2022-04-04 14:19 ` Simon Wright
2022-04-04 15:11 ` Simon Wright
2022-04-05 7:59 ` Vadim Godunko
2022-04-08 9:01 ` Simon Wright
2023-03-30 23:35 ` Thomas
2022-04-04 14:33 ` Simon Wright
2021-04-19 9:08 ` Stephen Leake
2021-04-19 9:34 ` Dmitry A. Kazakov
2021-04-19 11:56 ` Luke A. Guest
2021-04-19 12:13 ` Luke A. Guest
2021-04-19 15:48 ` DrPi
2021-04-19 12:52 ` Dmitry A. Kazakov
2021-04-19 13:00 ` Luke A. Guest
2021-04-19 13:10 ` Dmitry A. Kazakov
2021-04-19 13:15 ` Luke A. Guest
2021-04-19 13:31 ` Dmitry A. Kazakov
2022-04-03 17:24 ` Thomas
2021-04-19 13:24 ` J-P. Rosen
2021-04-20 19:13 ` Randy Brukardt [this message]
2022-04-03 18:04 ` Thomas
2022-04-06 18:57 ` J-P. Rosen
2022-04-07 1:30 ` Randy Brukardt
2022-04-08 8:56 ` Simon Wright
2022-04-08 9:26 ` Dmitry A. Kazakov
2022-04-08 19:19 ` Simon Wright
2022-04-08 19:45 ` Dmitry A. Kazakov
2022-04-09 4:05 ` Randy Brukardt
2022-04-09 7:43 ` Simon Wright
2022-04-09 10:27 ` DrPi
2022-04-09 16:46 ` Dennis Lee Bieber
2022-04-09 18:59 ` DrPi
2022-04-10 5:58 ` Vadim Godunko
2022-04-10 18:59 ` DrPi
2022-04-12 6:13 ` Randy Brukardt
2021-04-19 16:07 ` DrPi
2021-04-20 19:06 ` Randy Brukardt
2022-04-03 18:37 ` Thomas
2022-04-04 23:52 ` Randy Brukardt
2023-03-31 3:06 ` Thomas
2023-04-01 10:18 ` Randy Brukardt
2021-04-19 16:14 ` DrPi
2021-04-19 17:12 ` Björn Lundin
2021-04-19 19:44 ` DrPi
2022-04-16 2:32 ` Thomas
2021-04-19 13:18 ` Vadim Godunko
2022-04-03 16:51 ` Thomas
2023-04-04 0:02 ` Thomas
2021-04-19 22:40 ` Shark8
2021-04-20 15:05 ` Simon Wright
2021-04-20 19:17 ` Randy Brukardt
2021-04-20 20:04 ` Simon Wright
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