Re: [Ltru] Macrolanguage usage
"Mark Davis" <mark.davis@icu-project.org> Thu, 15 May 2008 21:01 UTC
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Date: Thu, 15 May 2008 14:00:41 -0700
From: Mark Davis <mark.davis@icu-project.org>
To: Shawn Steele <Shawn.Steele@microsoft.com>
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Subject: Re: [Ltru] Macrolanguage usage
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Perhaps it does, but I don't see why it would need to. Could you explain a bit more? Mark On Thu, May 15, 2008 at 1:09 PM, Shawn Steele <Shawn.Steele@microsoft.com> wrote: > Sounds reasonable to me, but it seems like RFC4647 would need updated to > handle the 2nd bullet. > > > > - Shawn > > > > *From:* ltru-bounces@ietf.org [mailto:ltru-bounces@ietf.org] *On Behalf Of > *Mark Davis > *Sent:* Thursday, May 15, 2008 8:29 AM > *To:* LTRU Working Group > *Subject:* [Ltru] Macrolanguage usage > > > > Peter Constable and I were at the Unicode Technical Committee meeting, and > had a chance to talk about macrolanguages. One of the key points is to > provide implementers with enough guidance as to what they should do, while > not precluding reasonable alternatives. Here's what we were thinking about > (not in formal language, but the points we wanted to make). > > === > > Formally, a macrolanguage identifier could be used to tag or look up > content in any encompassed language; alternately, specific, > individual-language identifiers could be used to tag or look up content in > those languages. In consideration of these alternatives, the following > provides guidance for how to maintain backwards compatibility while giving > the ability to clearly tag and lookup content. > > 1. Implementations generally should tag and/or lookup content with the > specific language where possible (this is the general recommendation with > language tags). In the case of macrolanguages, this means that Cantonese > should be tagged and looked up with "yue", Hakka with "hak", Tajiki Arabic > with "abh", Plains Cree with "crk", and so on. > > 2. An exception to this general recommendation may apply in the case of > macrolanguages with predominant forms, listed in Table 8. For backwards > compatibility in those cases: > > - an implementation could tag and/or lookup content in the predominant > language either with the macrolanguage or the encompassed language. (eg > either "ar" or "arb" for Standard Arabic). > - an implementation could make a distinction between these in lookup, > or could return the same content. That is, lookup for "zh-SG" and "cmn-SG" > may return the same content, or may return different content if the > implementation needs to make a distinction for some purpose. > > > - where content written in an encompassed language is also > understandable in the predominant language (that being a distinct language > encompassed by the same macrolanguage), the content could also be tagged > with the macrolanguage identifier. Thus if a Cantonese passage is > understandable if read as Mandarin, it could also be tagged with "zh", or > where a Tajiki Arabic passage is also understandable in Standard Arabic it > could be tagged with "ar". > > 3. Another exception to this general recommendation applies in the case of > applications that have limitations that exclude the identifiers for > encompassed, individual languages of a macrolanguage. For example, some > content cataloguing systems limit language identifiers to those in ISO > 639-2; as a result, they may support a macrolanguage identifier but not the > identifiers for the encompassed languages of that macrolanguage. > > Mark and Peter > > -- > Mark > -- Mark
_______________________________________________ Ltru mailing list Ltru@ietf.org https://www.ietf.org/mailman/listinfo/ltru
- [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage Shawn Steele
- Re: [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage Shawn Steele
- Re: [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage Shawn Steele
- Re: [Ltru] Macrolanguage usage Randy Presuhn
- Re: [Ltru] Macrolanguage usage [OT?] Phillips, Addison
- Re: [Ltru] Macrolanguage usage Doug Ewell
- Re: [Ltru] Macrolanguage usage Debbie Garside
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Phillips, Addison
- Re: [Ltru] Macrolanguage usage Shawn Steele
- Re: [Ltru] Macrolanguage usage Phillips, Addison
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Phillips, Addison
- Re: [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage Randy Presuhn
- Re: [Ltru] Macrolanguage usage Phillips, Addison
- Re: [Ltru] Macrolanguage usage Shawn Steele
- Re: [Ltru] Macrolanguage usage Phillips, Addison
- Re: [Ltru] Macrolanguage usage Phillips, Addison
- Re: [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage Shawn Steele
- Re: [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Don Osborn
- Re: [Ltru] Macrolanguage usage Randy Presuhn
- Re: [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage Stephane Bortzmeyer
- Re: [Ltru] Macrolanguage usage John Cowan
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Mark Davis
- Re: [Ltru] Macrolanguage usage John Cowan
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Doug Ewell
- Re: [Ltru] my technical position on extlang Doug Ewell
- Re: [Ltru] Macrolanguage usage Doug Ewell
- Re: [Ltru] Macrolanguage usage Randy Presuhn
- Re: [Ltru] Macrolanguage usage John Cowan
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Kent Karlsson
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Doug Ewell
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Nicolas Krebs
- Re: [Ltru] Macrolanguage usage Kent Karlsson
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Doug Ewell
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Kent Karlsson
- Re: [Ltru] Macrolanguage usage Stephane Bortzmeyer
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage Peter Constable
- Re: [Ltru] Macrolanguage usage John Cowan
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli
- Re: [Ltru] Macrolanguage usage Leif Halvard Silli