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Merge pull request #11 from go-seatbelt/i18n/add-simple-i18n-funcs
i18n: add basic i18n support
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@@ -2,3 +2,4 @@ | |
| .DS_Store | ||
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| master.key | ||
| NOTES.md | ||
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| @@ -0,0 +1,14 @@ | ||
| { | ||
| "Home": { | ||
| "other": "Home" | ||
| }, | ||
| "Hello": { | ||
| "other": "Hello" | ||
| }, | ||
| "WelcomeMessage": { | ||
| "other": "Welcome to Seatbelt. This is a sample application that shows off all the framework can do." | ||
| }, | ||
| "SessionData": { | ||
| "other": "Set and view session data" | ||
| } | ||
| } |
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| { | ||
| "Home": { | ||
| "other": "Maison" | ||
| }, | ||
| "Hello": { | ||
| "other": "Salut" | ||
| }, | ||
| "WelcomeMessage": { | ||
| "other": "Bienvenue à Seatbelt. Voici un application qui démontre tout que le framework peut faire." | ||
| }, | ||
| "SessionData": { | ||
| "other": "Voire et définir les données de session" | ||
| } | ||
| } |
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| {{ define "title-index" }}Home{{ end }} | ||
| <h1 class="title">Hello!</h1> | ||
| <p>Welcome to Seatbelt. This is a sample application that shows off all the framework can do.</p> | ||
| <a href="/session">Set and view session data</a> | ||
| {{ define "title-index" }}{{ t "Home" . }}{{ end }} | ||
| <h1 class="title">{{ t "Hello" . }}</h1> | ||
| <p>{{ t "WelcomeMessage" . }}</p> | ||
| <a href="/session">{{ t "SessionData" . }}</a> | ||
| <a href="/txt">Plaintext link</a> |
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| @@ -0,0 +1,97 @@ | ||
| package i18n | ||
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| import ( | ||
| "encoding/json" | ||
| "net/http" | ||
| "os" | ||
| "path/filepath" | ||
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| "github.com/nicksnyder/go-i18n/v2/i18n" | ||
| "golang.org/x/text/language" | ||
| ) | ||
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| type Translator struct { | ||
| path string | ||
| bundle *i18n.Bundle | ||
| } | ||
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| // New creates a new instance of a translator from the given file path. | ||
| func New(path string) *Translator { | ||
| bundle := i18n.NewBundle(language.English) | ||
| bundle.RegisterUnmarshalFunc("json", json.Unmarshal) | ||
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| // If the path is an empty string, we'll fall back to the default bundle, | ||
| // which will output the "translation missing" error for every string. | ||
| // Otherwise, load the translation data from the given filepath. | ||
| if path != "" { | ||
| if err := filepath.Walk(path, func(filepath string, info os.FileInfo, _ error) error { | ||
| if info == nil || info.IsDir() { | ||
| return nil | ||
| } | ||
| // TODO Check file extension (or possibly regex of filename) so | ||
| // that it doesn't break on unintenionally added files. | ||
| _, err := bundle.LoadMessageFile(filepath) | ||
| return err | ||
| }); err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
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| return &Translator{ | ||
| path: path, | ||
| bundle: bundle, | ||
| } | ||
| } | ||
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| // T translates the string with the given name. | ||
| func (t *Translator) T(r *http.Request, id string, data map[string]interface{}, pluralCount ...int) string { | ||
| lang := r.URL.Query().Get("locale") | ||
| accept := r.Header.Get("Accept-Language") | ||
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| localizer := i18n.NewLocalizer(t.bundle, lang, accept) | ||
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| lc := &i18n.LocalizeConfig{ | ||
| MessageID: id, | ||
| TemplateData: data, | ||
| } | ||
| for _, pc := range pluralCount { | ||
| lc.PluralCount = pc | ||
| } | ||
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| text, err := localizer.Localize(lc) | ||
| if err != nil { | ||
| // TODO Consider a "development" switch for this to raise an error or | ||
| // something rather than outputting the "translation missing:" | ||
| // message. | ||
| return "translation missing: " + guessLang(accept, lang) + ", " + id | ||
| } | ||
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| return text | ||
| } | ||
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| // TODO Make this work the exact same as i18n.NewLocalizer | ||
| func guessLang(langs ...string) string { | ||
| defaultLang := language.English.String() | ||
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| if len(langs) == 0 { | ||
| return defaultLang | ||
| } | ||
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| var guessedLang string | ||
| for i := len(langs) - 1; i != 0; i-- { | ||
| if langs[i] == "" { | ||
| continue | ||
| } | ||
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| tag, err := language.Parse(langs[i]) | ||
| if err != nil { | ||
| continue | ||
| } | ||
| guessedLang = tag.String() | ||
| } | ||
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| if guessedLang == "" { | ||
| return defaultLang | ||
| } | ||
| return guessedLang | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,23 @@ | ||
| package i18n | ||
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| import ( | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "testing" | ||
| ) | ||
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| func TestTranslator(t *testing.T) { | ||
| translator := New("testdata") | ||
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| req := httptest.NewRequest(http.MethodGet, "/?locale=fr", nil) | ||
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| s := translator.T(req, "PersonCats", map[string]interface{}{ | ||
| "Name": "Ben", | ||
| "Count": 0, | ||
| }) | ||
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| expected := "Ben a 0 chats." | ||
| if expected != s { | ||
| t.Fatalf("expected %s but got %s", expected, s) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,6 @@ | ||
| { | ||
| "PersonCats": { | ||
| "one": "{{.Name}} has {{.Count}} cat.", | ||
| "other": "{{.Name}} has {{.Count}} cats." | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,6 @@ | ||
| { | ||
| "PersonCats": { | ||
| "one": "{{.Name}} a {{.Count}} chat.", | ||
| "other": "{{.Name}} a {{.Count}} chats." | ||
| } | ||
| } |
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