Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis and draft-ietf-ltru-matching
"Doug Ewell" <doug@ewellic.org> Wed, 28 August 2019 16:52 UTC
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From: Doug Ewell <doug@ewellic.org>
To: Florian Rivoal <florian@rivoal.net>
Cc: ltru@ietf.org
Date: Wed, 28 Aug 2019 09:51:44 -0700
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ltru/UDd9ErRzRDcR2VHDpXCQuEyEV9A>
Subject: Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis and draft-ietf-ltru-matching
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Florian Rivoal wrote: > The stylesheet author is then faced with two options, both > unattractive for different reasons: > > * use the deprecated tag: [...] > > * Use both the deprecated and the preferred tag in the stylesheet's > selector. [...] Extlang subtags, and tags like "zh-yue" that use them, aren't deprecated. Extlang subtags have a Preferred-Value, but they don't have a Deprecated value. While this is a subtle distinction, "deprecated" is a term of art in BCP 47. It might be better to use a more unwieldy term like "non-preferred." Section 3.1.7 says: "For records of type 'extlang', the 'Preferred-Value' field appears without a corresponding 'Deprecated' field. An implementation MAY ignore these preferred value mappings, although if it ignores the mapping, it SHOULD do so consistently. It SHOULD also treat the 'Preferred-Value' as equivalent to the mapped item. For example, the tags "zh-yue-Hant-HK" and "yue-Hant-HK" are semantically equivalent and ought to be treated as if they were the same tag." It does go on to say: "The 'Preferred-Value' field in subtag records of type "extlang" also contains an "extended language range". This allows the subtag to be deprecated in favor of either a single primary language subtag or a new language-extlang sequence." but this is confusing to me, as I'm not sure who does the "deprecating" here. -- Doug Ewell | Thornton, CO, US | ewellic.org
- [Ltru] Mail regarding draft-ietf-ltru-4646bis and… Florian Rivoal
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Doug Ewell
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Florian Rivoal
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Doug Ewell
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… John Cowan
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Mark Davis ☕️
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Florian Rivoal
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… John Cowan
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… r12a
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Florian Rivoal
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Florian Rivoal
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… John Cowan
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Florian Rivoal
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… John Cowan
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Florian Rivoal
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… John Cowan
- Re: [Ltru] Mail regarding draft-ietf-ltru-4646bis… Doug Ewell