Re: language variant subtag "pinyin" modification request

Thanks for the clarification.

On Sat, Nov 24, 2018 at 3:04 PM Doug Ewell <[email protected]> wrote:

> Hugh Paterson wrote:
>
> > I'm interested in some clarification on the statement below:
> >
> >> It also suggests using invalid tags in the Japan section, where it
> >> makes the bizarre statement that "BCP 47 makes no difference between
> >> '-' and '_'". Be careful when citing this project.
> >
> > I'm wondering if the source of confusion at the OSM project might be
> > CLDR. I notice that the documentation at CLDR for suggested tags
> > includes underscores. See the documentation at [1].
> >
> > For my own understanding, am I correct to understand that CLDR tags
> > are not BCP47 tags? or put another way what is the relationship
> > between CLDR tags (approved ones) and BCP47 tags (approved ones).
> >
> > [1]:
> >
> http://www.unicode.org/cldr/charts/latest/supplemental/likely_subtags.html
>
> CLDR defines its own extensions of the BCP 47 syntax. Here is the
> relevant passage from UTS #35, which defines the syntax for identifiers
> (and much more) in CLDR:
>
> > 3.3 BCP 47 Conformance
> >
> > Unicode language and locale identifiers inherit the design and the
> > repertoire of subtags from [BCP47] Language Tags. There are some
> > extensions and restrictions made for the use of the Unicode locale
> > identifier in CLDR:
> >
> > [...]
> >
> > It allows certain syntax for backwards compatibility (not BCP 47-
> > compatible):
> >
> > The "_" character for field separator characters, as well as the "-"
> > used in [BCP47] (however, the canonical form is with "-")
>
> So underscores are not allowed in BCP 47 tags, but they are allowed in
> CLDR identifiers.
>
> As a side note, CLDR "likely subtags" are not necessary the "suggested
> tags" for language tagging. As Section 4.3 of UTS #35 notes, the purpose
> of these is to indicate the most likely language, script, and/or region
> subtag, given one or two of the others. They do not supersede the
> general BCP 47 advice to omit needless subtags.
>
> For example, although likelySubtags.xml defines this:
>
> <likelySubtag from="ja" to="ja_Jpan_JP"/>
>
> there is no reason in normal language tagging to use either 'Jpan' or
> 'JP' in this tag. It is just telling you what the most likely script and
> region subtags for Japanese would be.
>
> CLDR is an important user of BCP 47, but its syntax and rules are its
> own.
>
> --
> Doug Ewell | Thornton, CO, US | ewellic.org
>
>

-- 
*Hugh Paterson III *Innovation Analyst
*Innovation Development & Experimentation*, *SIL International*

*Web*: Contact & CV <http://hughandbecky.us/Hugh-CV/>

_______________________________________________
Ietf-languages mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/ietf-languages