Re: [Ltru] Re: Macrolanguage and extlang
"Doug Ewell" <dewell@roadrunner.com> Sun, 15 July 2007 23:33 UTC
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From: Doug Ewell <dewell@roadrunner.com>
To: LTRU Working Group <ltru@ietf.org>
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Subject: Re: [Ltru] Re: Macrolanguage and extlang
Date: Sun, 15 Jul 2007 16:33:14 -0700
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Mark Davis wrote: > The main argument I've hear for extlang is behind-the-scenes-inertia. > While we made provision in 4646 for possibly accepting them in the > future, it was by no means a done-deal. The main argument that has been offered is that it makes matching easier. Whether that argument was heard is a different question. > The only reason I've heard advocated for them is that it makes > matching easier. But in practice, we have simply not found that to be > true. If it is indeed worthwhile to add this mechanism to 4646, a > good case needs to be made for it; and inertia isn't a good case. Here is the argument restated. It is based not on behind-the-scenes inertia, but on backward compatibility, the exact same issue that caused us to adopt Suppress-Script. Existing Cantonese text has been tagged as "zh", the basic ISO 639-1-based tag, or as "zh-yue", the tag that was registered for this purpose back in 1999. The extlang mechanism would have established "yue" as an extlang under "zh", so the proper tagging of Cantonese would continue to be "zh" (more general) or "zh-yue" (more specific). Matching engines would continue to operate as they do now. The proposed mechanism establishes "yue" as a primary language subtag, so the proper tagging of Cantonese becomes "yue". Matching engines must be upgraded to RFC 4646bis in order to have any chance at finding a match. The much-beloved and much-catered-to RFC 3066 remove-from-right "fallback" algorithm will NEVER find a match between "yue" and "zh", regardless of whether script and/or region subtags are involved. Put another way: Extlangs may not make matching easier, but *not* having extlangs will make matching harder. -- Doug Ewell * Fullerton, California, USA * RFC 4645 * UTN #14 http://users.adelphia.net/~dewell/ http://www1.ietf.org/html.charters/ltru-charter.html http://www.alvestrand.no/mailman/listinfo/ietf-languages _______________________________________________ Ltru mailing list Ltru@ietf.org https://www1.ietf.org/mailman/listinfo/ltru
- [Ltru] Suggested text for future compatibility of… Mark Davis
- Re: [Ltru] Suggested text for future compatibilit… Randy Presuhn
- Re: [Ltru] Suggested text for future compatibilit… Mark Davis
- Re: [Ltru] Suggested text for future compatibilit… Randy Presuhn
- Re: [Ltru] Suggested text for future compatibilit… Addison Phillips
- Re: [Ltru] Suggested text for future compatibilit… Mark Davis
- [Ltru] Re: Suggested text for future compatibilit… Doug Ewell
- Re: [Ltru] Re: Suggested text for future compatib… John Cowan
- Re: [Ltru] Re: Suggested text for future compatib… Doug Ewell
- [Ltru] Re: Macrolanguage and extlang Doug Ewell
- Re: [Ltru] Re: Macrolanguage and extlang John Cowan
- [Ltru] Re: Macrolanguage and extlang Doug Ewell
- Re: [Ltru] Re: Macrolanguage and extlang Mark Davis
- Re: [Ltru] Re: Macrolanguage and extlang Doug Ewell
- [Ltru] Re: Suggested text for future compatibilit… Stephane Bortzmeyer
- [Ltru] Re: Macrolanguage and extlang Stephane Bortzmeyer
- RE: [Ltru] Re: Macrolanguage and extlang Peter Constable
- Re: [Ltru] Re: Macrolanguage and extlang Mark Davis
- Re: [Ltru] Re: Macrolanguage and extlang Addison Phillips
- Re: [Ltru] Re: Macrolanguage and extlang Randy Presuhn
- Re: [Ltru] Re: Macrolanguage and extlang John Cowan
- Re: [Ltru] Re: Macrolanguage and extlang Doug Ewell
- [Ltru] Re: Macrolanguage and extlang Doug Ewell
- Re: [Ltru] Re: Macrolanguage and extlang John Cowan
- RE: [Ltru] Re: Macrolanguage and extlang Kent Karlsson
- Re: [Ltru] Re: Macrolanguage and extlang John Cowan