From: Peter Constable (email@example.com)
Date: Thu Oct 04 2007 - 20:22:24 CDT
There is work in progress to revise RFC 4646 and, if needed, RFC 4647 -- the two components of BCP47.
There is one significant issue to be resolved, which has to do with how best to deal with legacy practice and legacy codes in ISO 639-2, such as "zh" (Chinese) versus current/future needs and new codes provided in 639-2, such as "cmn" (Mandarin) and "yue" (Cantonese). For such cases, options are to recommend tags of the form "zh-cmn", or to recommend tags of the form "cmn". There will likely be implications for matching algorithms either way -- hence the possibility of a revision to RFC 4647 at the same time.
From: firstname.lastname@example.org [mailto:email@example.com] On Behalf Of Eric Muller
Sent: Thursday, October 04, 2007 3:59 PM
To: Unicode Mailing List
Subject: Alignment of IANA language subtag registry to ISO 639-3
It is my understanding that once ISO 639-3 was published (it was in
February), there would be some effort to update the IANA language subtag
registry to include most of the languages covered by 639-3. Any news on
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