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Re: [art] [Last-Call] Language tags and YANG

"Martin J. Dürst" <duerst@it.aoyama.ac.jp> Fri, 01 July 2022 06:44 UTC

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To: Carsten Bormann <cabo@tzi.org>, tom petch <daedulus@btconnect.com>
Cc: Francesca Palombini <francesca.palombini@ericsson.com>, Applications and Real-Time Area Discussion <art@ietf.org>, "last-call@ietf.org" <last-call@ietf.org>, "i18ndir@ietf.org" <i18ndir@ietf.org>
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From: "Martin J. Dürst" <duerst@it.aoyama.ac.jp>
Organization: Aoyama Gakuin University
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Subject: Re: [art] [Last-Call] Language tags and YANG
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On 2022-06-30 20:27, Carsten Bormann wrote:

> Note that
> [a-zA-Z]{1,8}(-[a-zA-Z0-9]{1,8})*
> is a bit more than a length restriction, it is also defining the characters that can be used in a language tag.

Well, to be precise, it is a bit more and a bit less than a length 
restriction. It restricts the length of each subtag to 8 or less ASCII 
letters/digits, with intervening hyphens, but it does not impose any 
length restriction on the overall tag.

For further details on length considerations, if you have the time 
please see
https://www.rfc-editor.org/rfc/rfc5646.html#section-4.4

> I would think that having that as a YANG data type would be good, but of course I have no opinion whether this needs to be in 6991bis.

Agreed.

Regards,   Martin.

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