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From: Thomas <fantome.forums.tDeContes@free.fr.invalid>
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Subject: Re: Ada and Unicode
References: <607b5b20$0$27442$426a74cc@news.free.fr> <660e25a5-506b-43c0-b4ac-e7738e5500e5n@googlegroups.com> <lyfszm5xv2.fsf@pushface.org>
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Date: Sun, 03 Apr 2022 21:20:19 +0200
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In article <lyfszm5xv2.fsf@pushface.org>,
 Simon Wright <simon@pushface.org> wrote:

> But don't use unit names containing international characters, at any
> rate if you're (interested in compiling on) Windows or macOS:
> 
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81114

if i understand,  Eric Botcazou is a gnu admin who decided to reject your bug?
i find him very "low portability thinking"!

it is the responsability of compilers and other underlying tools, to manage various underlying OS and FS,
not of the user to avoid those that the compiler devs find too bad!
(or to use the right encoding. i heard that Windows uses UTF-16, do you know about it?)


clearly, To_Lower takes Latin-1.
and this kind of problems would be easier to avoid if string types were stronger ...


after:

package Ada.Strings.UTF_Encoding
    ...
    type UTF_8_String is new String;
    ...
end Ada.Strings.UTF_Encoding;

i would have also made:

package Ada.Directories
    ...
    type File_Name_String is new Ada.Strings.UTF_Encoding.UTF_8_String;
    ...
end Ada.Directories;

with probably a validity check and a Dynamic_Predicate which allows "".

then, i would use File_Name_String in all Ada.Directories and Ada.*_IO.

-- 
RAPID maintainer
http://savannah.nongnu.org/projects/rapid/