Language country tag incompatibility about crunchy-cli

[bytedream]

Hey, thanks for the suggestion. Crunchyroll provides the languages in the form of en-US, ja-JP, ... .
The issue I see with supporting alternative representations like IETF one you suggest are the overlapping languages. There are multiple languages with "dialects", e.g. zh-CN, zh-HK and zh-TW are all chinese languages (full list here) and I don't know how much they differ/if it's tolerable to sum they under one one IETF language tag (as I don't speak any language which has multiple tags). Plus, the language tag may be duplicated if there is an episode with e.g. zh-CN and zh-HK which then resolves in two videos with the same IETF tag

[exus85]

I understand (I don't speak any of the languages you mentioned and I don't know if there would be a real difference).
Maybe you could leave the decision to the user and accept both formats so that if I set:
crunchy archive -a ja-JP -a it-IT -s it-IT..
it would save the tracks as ja-JP it-IT
but if I instead set:
crunchy archive -a ja -a it -s it
it would just pick a generic subregion from crunchy (specified inside the code) and then set the tag with the two letter format (which in most of the cases I guess it would just be the same except, maybe, for the few dialects you mentioned)
thank you!