Deprecation of heploc subtag (refiling with corrected spelling)

[Randy Presuhn]

Hi -

> From: "Phillips, Addison" <addison at amazon.com>
> To: "Doug Ewell" <doug at ewellic.org>; <ietf-languages at iana.org>
> Sent: Saturday, December 19, 2009 9:48 AM
> Subject: RE: Deprecation of heploc subtag (refiling with corrected spelling)
>
> I think you mean that the record would be:
> 
>  Type: variant
>  Subtag: heploc
>  Description: Hepburn romanization, Library of Congress method
>  Added: 2009-10-01
>  Deprecated: 2009-12-25
>  Preferred-Value: alalc97
>  Prefix: ja-Latn-hepburn

I hope no one understands this as meaning that a tag
of ja-Latn-hepburn-heploc should be replaced by one
of ja-Latn-hepburn-alalc97.  Presumably the intent was
ja-Latn-alalc97, but I don't see how one would figure
that out from the registry contents alone.

I think the lesson from this is that Preferred-Value doesn't
quite work in some cases, e.g., when the new preferred-value
is "generic" (lacks a prefix) and the variant to which is
is added has a prefix with multiple subtags.

Randy