Sample IANA language subtag registry

Mark Davis mark.davis at
Mon Jul 12 16:04:48 CEST 2004

> It's my best guess as to what Addison and Mark meant by "marking" these
> tags as superseded.  I wish someone would tell me what was really meant.

I looked this over, and recall now what it is. Superseded simply means that
they are now expressible with the generative grammar instead of needing to
be "whole tag" registrations. They remain, however, perfectly valid (as are
all 3066 registered tags). So "superseded" may be too misleading a term to
use. I'm not sure there is a good single-word term to use for "3066 tags
that no longer require separate registration". Any thoughts?


----- Original Message ----- 
From: "Doug Ewell" <dewell at>
To: <ietf-languages at>
Sent: Sunday, July 11, 2004 23:20
Subject: Re: Sample IANA language subtag registry

> Michael Everson <everson at evertype dot com> wrote:
> > I really don't know what it is you are trying to do any more.
> I'm trying to build a prototype of the language subtag registry
> described in Section 3.2 of draft-phillips-langtags-04.  That's all.  I
> didn't invent it, although I do think it's a good idea.
> > "Registered variants", "grandfathered things" (that is NOT a technical
> > term), and now "superseded codes"?
> Did I ever say "grandfathered things" in a technical context?
> The comment "superseded RFC 3066 codes" is incorrect.  Appendix C refers
> to superseding "tags."  I'll fix this in the header. I doubt that's what
> Michael is upset about, though.
> >> I added a batch of comments at the end to indicate the "superseded"
> >> codes.  I still don't know if this is what Appendix C means by saying
> >> that certain tags should be "marked as 'superseded'."
> >
> > Then what are they doing in your Registry?
> It's my best guess as to what Addison and Mark meant by "marking" these
> tags as superseded.  I wish someone would tell me what was really meant.
> > It seems to me that there is something really very wrong with what is
> > going on here.
> I created the prototype with the intent of getting feedback on it as it
> pertains to draft-04.  Maybe it will result in changes to draft-04
> itself, or maybe not.  But I think apart from the "superseded" comments,
> it is very much in keeping with what draft-04 says.
> (quoting Mark Davis)
> >> This is great work, Doug. Addison and I were gearing up to do it, so
> >> it's wonderful that you've taken this on.
> >
> > I'm glad Mark understands Doug's work, then. Maybe he would like to
> > be the reviewer?
> Honestly, I don't see what the problem is from the standpoint of the
> Language (Sub)tag Reviewer.  If I'm doing this initial setup correctly,
> *it won't have to be done again*, which means a net increase of
> practically zero in the Reviewer's workload.
> There are maybe 6 or 8 changes per year, on average, in the three ISO
> standards that will affect language tags.  People like me who use
> WatchThatPage as our eyes and ears will be more than happy to notify
> Michael that such a change needs to be made, so he doesn't have to worry
> about keeping track of it.  Or, someone else could take on the role of
> the dumb scribe and let Michael focus on being the expert reviewer.
> -Doug Ewell
>  Fullerton, California
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