| Verdy_p added a comment. |
@Esc3300: Guernésiais and Jérriais still have no separate ISO 639 code. "nrf" is encoding Norman as a whole (i.e. a single language) encompassing all its regional or dialectal variants, and still not as a macrolanguage (see ISO 639-3 for reference).
But for BCP47 "nrf" is fully conforming, just like "nrf-JE", "nrf-GG", "nrf-FR" (it uses regions subtags registered in IANA and inherited from ISO 3166-1, which have NO restriction for specific language). This is for now the only way to represent them in BCP 47.
There's still no separate codes in ISO 639-3 (so there's also no primary language subtag in BCP47) for Jérriais and Guernésiais as single languages, which are still considered by ISO 639 (and BCP 47) as variants of "nrf". The only existing standard way to represent them is then to use region subtags after "nrf". This is perfectly valid in BCP 47 (using region subtags is deprecated but not invalid for languages that have been separately encoded in ISO 639-3 and then added to the IANA database for language subtags). There's no ambiguity at all in this case (this explains why no ISO 639-3 codes were even requested for Jerriais and Guernésiais as there was no demonstation they were ambiguous using region subtags and no demonstration that "nrf" should then become a macrolanguage).
There's only one missing case, for Sark (which uses a documented variant for Guernésiais), for which there's NO standard way to represent it (except by using an addition private use, given that Sark has NO region subtags for itself: it would then be "nrf-GG-x-sark" to conform to the BCP47 standard, or possibly just "nrf-x-sark")
Cc: Verdy_p, gerritbot, Amire80, Nikki, jhsoby, GerardM, Baba_Tabita, Aklapper, Esc3300, GoranSMilovanovic, Adik2382, Th3d3v1ls, Ramalepe, Liugev6, QZanden, Lewizho99, Maathavan, Izno, Wikidata-bugs, aude, Mbch331
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