Golang get system language

Question

Is there a function for getting the user's system language I can't find it anywhere on the Go site.

To clarify my question i want the current user's system language that means when everything is for example dutch on the system i want to get "dutch" or "nl"

note: the program is made to run on linux, mac and windows

Answer 1

There is a nice cross-platform library called jibber_jabber which looks up for $LC_ALL or $LANG env variables in Unix systems and, for Windows, loads Kernel32 and calls some procedures like GetUserDefaultLocaleName or GetSystemDefaultLocaleName inside. For Windows, all is done in the getWindowsLocale() function. Be advised that Kernel32 library comes built-in in Windows OS kernel.

By the way, should you need to convert locale-format'd language strings like en_US and fr_FR, you can utilize the x/text/language and x/text/language/display packages to get fully qualified name of the language.

lang := "ru_RU"
tag := language.MustParse(lang)

inEng := display.English.Languages()
inTur := display.Turkish.Languages()
inSelf := display.Self

fmt.Println(inEng.Name(tag))
fmt.Println(inSelf.Name(tag))
fmt.Println(inTur.Name(tag))

   // Output:
   // Russian
   // русский
   // Rusça