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Re: [Ietf-languages] Language tag for Han pinyin

John Cowan <cowan@ccil.org> Fri, 27 May 2022 23:55 UTC

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From: John Cowan <cowan@ccil.org>
Date: Fri, 27 May 2022 19:55:37 -0400
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To: Richard Wordingham <richard.wordingham=40ntlworld.com@dmarc.ietf.org>
Cc: ">" <ietf-languages@ietf.org>
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Subject: Re: [Ietf-languages] Language tag for Han pinyin
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On Fri, May 27, 2022 at 6:26 PM Richard Wordingham <richard.wordingham=
40ntlworld.com@dmarc.ietf.org> wrote:

In accordance with BCP 47, is the complete tag "cmn-Latn-pinyin"
> supposed to be suitable for Mandarin in Han pinyin?


Yes, that is suitable.

> My qualm is that
> the variant tag should have prefix "zh-Latn" when used for Chinese,
>

Prefixes associated with a variant subtag are permissive and informative
only.

which suggests, contrary to other recommendations, that one should
> rather use "zh-cmn-Latn-pinyin".  Do we perhaps need to add another
> prefix to this and similar variants?
>

We could add "cmn" and "cmn-Latn" as prefixes, yes, but we are not required
to do so.

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