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From: "J-P. Rosen" <rosen@adalog.fr>
Subject: Re: GNAT vs UTF-8 source file names
Date: Wed, 5 Jul 2017 07:21:31 +0200
Date: 2017-07-05T07:21:31+02:00	[thread overview]
Message-ID: <ojhspu$sb2$1@dont-email.me> (raw)
In-Reply-To: <lyeftw2tlc.fsf@pushface.org>

Le 04/07/2017 à 15:57, Simon Wright a écrit :
> The reason for this apparently-bizarre message is[3] that macOS takes 
> the composed form (lowercase a acute) and converts it under the hood 
> to what HFS+ insists on, the fully decomposed form (lowercase a, combining 
> acute); thus the names are actually different even though they _look_ 
> the same.
Apparently, they use NFD (Normalization Form D). Normalization forms are
necessary to avoid a whole lot of problems, although Ada requires
normalization form C (ARM 2.1 (4.1/3)), or more precisely, it is
implementation defined if the text is not in NFC.

-- 
J-P. Rosen
Adalog
2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX
Tel: +33 1 45 29 21 52, Fax: +33 1 45 29 25 00
http://www.adalog.fr

  parent reply	other threads:[~2017-07-05  5:21 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-30 17:10 GNAT vs UTF-8 source file names Simon Wright
2017-06-17 17:20 ` Simon Wright
2017-06-27 13:22   ` Jacob Sparre Andersen
2017-06-27 21:45     ` Niklas Holsti
2017-06-28  5:05       ` G.B.
2017-07-04 13:57   ` Simon Wright
2017-07-04 17:30     ` Shark8
2017-07-04 18:08       ` Dennis Lee Bieber
2017-07-05  5:25       ` J-P. Rosen
2017-07-06 15:18         ` Shark8
2017-07-07  8:19           ` J-P. Rosen
2017-07-05  5:21     ` J-P. Rosen [this message]
2017-07-05  9:47       ` Simon Wright
2017-07-05 11:20         ` J-P. Rosen
2017-07-05 18:42           ` Randy Brukardt
2017-07-06 18:43           ` Simon Wright
2017-07-07  8:26             ` J-P. Rosen
2017-07-07 11:01               ` Simon Wright
2017-07-07 11:49                 ` Jacob Sparre Andersen
2017-07-07 19:44                   ` Randy Brukardt
2017-07-07 19:40                 ` Randy Brukardt
2017-07-07 21:02                   ` Simon Wright
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