Proposal: "compat" keywords (BCP47)

[Steven R. Loomis]

On 07/30/2014 08:40 AM, Markus Scherer wrote:
> On Tue, Jul 29, 2014 at 10:56 PM, Steven R. Loomis
> <srl at icu-project.org <mailto:srl at icu-project.org>> wrote:
>
>     On 07/29/2014 10:53 PM, Steven R. Loomis wrote:
>     > New keyword "compat"
>     >
>     > Example:
>     >
>     >     ar-u-co-compat
>     >
>     > Meaning: "A compatibility collation tailoring, intended to use a
>     > previous version of the collation rules."
>     >
>
>     This is a BCP47 keyword.
>
>
> More specifically, as shown in the example, this is a keyword proposed
> for addition to
> http://unicode.org/cldr/trac/browser/trunk/common/bcp47/collation.xml
> as a new type value for <key name="co" description="Collation type
> key" alias="collation"> 
>
> The committee felt that we should make the current Arabic tailoring
> available for at least this release, and that none of the current
> keyword values seem appropriate.
>
> Best regards,
> markus

Thanks for the context, Markus. Perhaps it is worth having some wording
such as, "this keyword may only have meaning relative to specific
versions of specific implementations.".  I.e., it doesn't reference a
specific standard, nor a method such as "pinyin", nor a category of
standards such as "phonebook".

Steven