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From: David Brown <david.brown@hesbynett.no>
Newsgroups: comp.lang.c
Subject: Re: "A diagram of C23 basic types"
Date: Wed, 9 Apr 2025 15:24:53 +0200
Organization: A noiseless patient Spider
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On 09/04/2025 13:04, Janis Papanagnou wrote:
> On 09.04.2025 13:00, Muttley@DastardlyHQ.org wrote:
>> On Wed, 9 Apr 2025 13:32:15 +0300
>> Michael S <already5chosen@yahoo.com> wibbled:
>>> Message headers indicated that it is UTF-8 encoded as quoted printable.
>>> I don't know (and don't want to know) too much about usenet mechanics,
>>> but it seems to me that decent newsreader should decode it back into
>>> UTF-8.
>>
>> There's nothing in your header that says uft8:
>>
>> MIME-Version: 1.0
>> Content-Type: text/plain; charset=US-ASCII
>> Content-Transfer-Encoding: 7bit
> 
> Just for comparison, here's what I see in that header...
> 
>    MIME-Version: 1.0
>    Content-Type: text/plain; charset=UTF-8
>    Content-Transfer-Encoding: quoted-printable
> 
> 

Michael's Usenet client, like many as far as I can see, adapts the 
charset and Content-Transfer-Encoding according to the lowest that 
supports the characters used in the post.

Thus when he posts without any non-ASCII characters, it uses US-ASCII 
and 7-bit encoding.  That includes replying to Muttley after Muttley's 
client failed to understand the "quoted-printable" encoding and thus 
interpreted the quoted-printable characters naïvely.

Michael's posts do use UTF-8 when he uses non-ASCII characters, and 
certainly Thunderbird has no problem with the quoted-printable encoding 
(though it uses 8-bit encoding for its own posts when 7-bit is not enough).