I need to convert language names like 'Hungarian', 'English' to ISO 639 codes. ISO 639-6 would be the best but ISO 639-2 is good enough. What's the best way to achieve this? I should convert the E...

I am writing a server API for an iOS application. As a part of the initialization process, the app should send the phone interface language to server via an API call. The problem is that Apple use...