package main import ( "fmt" "github.com/go-playground/locales" "github.com/go-playground/locales/en" "github.com/go-playground/locales/en_CA" "github.com/go-playground/locales/fr" "github.com/go-playground/locales/nl" "github.com/go-playground/universal-translator" ) // only one instance as translators within are shared + goroutine safe var universalTraslator *ut.UniversalTranslator func main() { // NOTE: this example is omitting a lot of error checking for brevity e := en.New() universalTraslator = ut.New(e, e, en_CA.New(), nl.New(), fr.New()) en, _ := universalTraslator.GetTranslator("en") // generally used after parsing an http 'Accept-Language' header // and this will try to find a matching locale you support or // fallback locale. // en, _ := ut.FindTranslator([]string{"en", "en_CA", "nl"}) // this will help fmt.Println("Cardinal Plural Rules:", en.PluralsCardinal()) fmt.Println("Ordinal Plural Rules:", en.PluralsOrdinal()) fmt.Println("Range Plural Rules:", en.PluralsRange()) // add basic language only translations // last param indicates if it's ok to override the translation if one already exists en.Add("welcome", "Welcome {0} to our test", false) // add language translations dependant on cardinal plural rules en.AddCardinal("days", "You have {0} day left to register", locales.PluralRuleOne, false) en.AddCardinal("days", "You have {0} days left to register", locales.PluralRuleOther, false) // add language translations dependant on ordinal plural rules en.AddOrdinal("day-of-month", "{0}st", locales.PluralRuleOne, false) en.AddOrdinal("day-of-month", "{0}nd", locales.PluralRuleTwo, false) en.AddOrdinal("day-of-month", "{0}rd", locales.PluralRuleFew, false) en.AddOrdinal("day-of-month", "{0}th", locales.PluralRuleOther, false) // add language translations dependant on range plural rules // NOTE: only one plural rule for range in 'en' locale en.AddRange("between", "It's {0}-{1} days away", locales.PluralRuleOther, false) // now lets use the translations we just added, in the same order we added them fmt.Println(en.T("welcome", "Joeybloggs")) fmt.Println(en.C("days", 1, 0, en.FmtNumber(1, 0))) // you'd normally have variables defined for 1 and 0 fmt.Println(en.C("days", 2, 0, en.FmtNumber(2, 0))) fmt.Println(en.C("days", 10456.25, 2, en.FmtNumber(10456.25, 2))) fmt.Println(en.O("day-of-month", 1, 0, en.FmtNumber(1, 0))) fmt.Println(en.O("day-of-month", 2, 0, en.FmtNumber(2, 0))) fmt.Println(en.O("day-of-month", 3, 0, en.FmtNumber(3, 0))) fmt.Println(en.O("day-of-month", 4, 0, en.FmtNumber(4, 0))) fmt.Println(en.O("day-of-month", 10456.25, 0, en.FmtNumber(10456.25, 0))) fmt.Println(en.R("between", 0, 0, 1, 0, en.FmtNumber(0, 0), en.FmtNumber(1, 0))) fmt.Println(en.R("between", 1, 0, 2, 0, en.FmtNumber(1, 0), en.FmtNumber(2, 0))) fmt.Println(en.R("between", 1, 0, 100, 0, en.FmtNumber(1, 0), en.FmtNumber(100, 0))) }