Language Support AndBC P47

BCP-47

BCP-47 defines the available language identification space on the net, and in practice also on systems such as Windows, macOS, Linux, iOS and more. It builds on several independent standards and registries, which are put together as follows (simplified):

nn-OOOO-PP-qqqqqq-x-abcd-efgh

where:

nn
ISO 639 language codes (two-letter if availablel, three-letter 639-3 codes otherwise)
OOOO
ISO 15924 Script codes
PP
ISO 3166-1 country or area code (two letters), OR UN M.49 code (three digits)
qqqqq
IANA registered variant codes (5-8 letters, or digit + 3 alphanums)
x-
separator in front of private use tags
abcd, efgh
private use tags, 1-8 letters or digits each

The relevant standards and registries are:

CLDR language support

Windows language support

This means that MS Windows recognises about 3 % of the languages of the world, many of them for several areas, and some also for multiple scripts.

macOS language support

TBW.

iOS language support

TBW.

Android language support

TBW.