go__i18n_demo/xtext/03interpolation/03interpolation.go

package main

import (
	"fmt"

	"golang.org/x/text/feature/plural"
	"golang.org/x/text/language"
	"golang.org/x/text/message"
	"golang.org/x/text/message/catalog"
)

const (
	Lateness = "You are %d minute(s) late\n"
)

func init() {
	message.Set(language.French, Lateness,
		catalog.Var("minutes", plural.Selectf(1, "%d",
			"=1", "minute",
			"other", "minutes",
		)),
		catalog.String("Vous êtes en retard de %[1]d ${minutes}\n"),
	)
}

func main() {
	for _, lang := range []language.Tag{language.French, language.AmericanEnglish} {
		fmt.Printf("Language: %v\n", lang)
		p := message.NewPrinter(lang)
		for i := 1; i <= 2; i++ {
			fmt.Print("\t")
			p.Printf(Lateness, i)
		}
		fmt.Println()
	}
}