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Date:	Thu, 24 Jul 2025 17:36:38 +0200
To:	cygwin AT cygwin DOT com
Subject:	Re: readdir() returns inaccessible name if file was created with
	invalid UTF-8
Message-ID:	<aIJTBuRjlVNDNWD7@calimero.vinschen.de>
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From:	Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
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Cc:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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On Jul 24 09:28, Brian Inglis via Cygwin wrote:
> On 2025-07-24 04:30, Corinna Vinschen via Cygwin wrote:
> > Or shall simply go along with CESU-8 when converting back to multibyte
> > to keep the string the same as with wcstombs?
> 
> There are 15 * SMP as BMP characters, so many non-Western and emoji
> characters will be expanded from 4 UTF-8 bytes to 6 CESU-8 bytes, and this
> is not supported anywhere as a string representation, designed for internal
> use only per the TR.

We're only talking about invalid sequences, not using CESU-8 throughout.


Corinna

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