Is there a list of BCP 47 language codes in R?...

How can I get the name of a language in any other language, based on IETF language tag...

converting TrueType Macintosh Language Codes to BCP 47 language tags...

Getting the user's region with navigator.language...

AAPT ERROR: Invalid BCP 47 tag in directory name b+sr+latn_values...

How to I get the IETF BCP47 Language code in Android API < 21...

Getting a language range for the current Android user...

How to convert IETF BCP 47 language identifier to ISO-639-2?...