106 lines
2.3 KiB
Go
106 lines
2.3 KiB
Go
package srnd
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import (
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"github.com/majestrate/configparser"
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"golang.org/x/text/language"
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"io/ioutil"
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"log"
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"path/filepath"
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"strings"
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"errors"
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)
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type I18N struct {
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locale language.Tag
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// loaded translations
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Translations map[string]string
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// loaded formats
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Formats map[string]string
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// root directory for translations
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translation_dir string
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// name of locale
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Name string
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}
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var I18nProvider *I18N = nil
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var ErrNoLang = errors.New("no such language")
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//Read all .ini files in dir, where the filenames are BCP 47 tags
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//Use the language matcher to get the best match for the locale preference
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func InitI18n(locale, dir string) {
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var err error
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I18nProvider, err = NewI18n(locale, dir)
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if err != nil {
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log.Fatal(err)
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}
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}
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func NewI18n(locale, dir string) (*I18N, error) {
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log.Println("get locale", locale)
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pref := language.Make(locale) // falls back to en-US on parse error
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files, err := ioutil.ReadDir(dir)
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if err != nil {
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return nil, err
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}
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found:= false
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serverLangs := make([]language.Tag, 1)
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// serverLangs[0] = language.AmericanEnglish // en-US fallback
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for _, file := range files {
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if filepath.Ext(file.Name()) == ".ini" {
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name := strings.TrimSuffix(file.Name(), ".ini")
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tag, err := language.Parse(name)
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if err == nil {
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serverLangs = append(serverLangs, tag)
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found = true;
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}
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}
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}
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if !found {
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return nil, ErrNoLang
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}
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matcher := language.NewMatcher(serverLangs)
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tag, _, _ := matcher.Match(pref)
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fname := filepath.Join(dir, tag.String()+".ini")
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conf, err := configparser.Read(fname)
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if err != nil {
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return nil, err
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}
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formats, err := conf.Section("formats")
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if err != nil {
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return nil, err
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}
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translations, err := conf.Section("strings")
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if err != nil {
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return nil, err
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}
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return &I18N{
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Name: locale,
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translation_dir: dir,
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Formats: formats.Options(),
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Translations: translations.Options(),
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locale: tag,
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}, nil
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}
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func (self *I18N) Translate(key string) string {
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return self.Translations[key]
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}
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func (self *I18N) Format(key string) string {
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return self.Formats[key]
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}
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//this signature seems to be expected by mustache
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//func (self *I18N) Translations() (map[string]string, error) {
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// return self._translations, nil
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//}
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//func (self *I18N) Formats() (map[string]string, error) {
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// return self.formats, nil
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//}
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