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Re: [Ltru] [apps-discuss] Fwd: Defining a CBOR tag for RFC 5646Language Tags

John Cowan <cowan@mercury.ccil.org> Wed, 14 May 2014 17:38 UTC

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Date: Wed, 14 May 2014 13:38:25 -0400
From: John Cowan <cowan@mercury.ccil.org>
To: Dave Cridland <dave@cridland.net>
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Subject: Re: [Ltru] [apps-discuss] Fwd: Defining a CBOR tag for RFC 5646Language Tags
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Dave Cridland scripsit:

> Many years ago, Mark Crispin and Chris Newman had a proposal for embedding
> language tags in invalid UTF-8; I seem to recall they publicly renounced
> their proposal rather dramatically in favour of a Unicode Consortium
> proposal for embedding the language tags somewhere in Plane 14 - published
> as RFC 2482.

That's correct.  There is a character meaning "Language tag follows"
(U+E0001) and then there are tag versions of the 96 ASCII graphic
characters (U+E0020 through U+E007E), though in fact only letters,
digits, and hyphen would be useful.  U+E007F means "No language tag".

> The fact it was all initiated in order to support the pressing needs of
> ACAP might give you some hints as to why it never really took off, but as a
> counter-proposal to language tags in metadata, it might be worth
> re-examining.

It might, but don't get your hopes up.

-- 
John Cowan          http://www.ccil.org/~cowan        cowan@ccil.org
SAXParserFactory [is] a hideous, evil monstrosity of a class that should
be hung, shot, beheaded, drawn and quartered, burned at the stake,
buried in unconsecrated ground, dug up, cremated, and the ashes tossed
in the Tiber while the complete cast of Wicked sings "Ding dong, the
witch is dead."  --Elliotte Rusty Harold on xml-dev

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