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https://github.com/nicksnyder/Go-i18n
Translate your Go program into multiple languages.
https://github.com/nicksnyder/Go-i18n
cldr go i18n translation translation-files
Last synced: 13 days ago
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Translate your Go program into multiple languages.
- Host: GitHub
- URL: https://github.com/nicksnyder/Go-i18n
- Owner: nicksnyder
- License: mit
- Created: 2012-01-14T21:44:37.000Z (almost 13 years ago)
- Default Branch: main
- Last Pushed: 2024-03-31T23:26:08.000Z (7 months ago)
- Last Synced: 2024-05-02T06:07:54.615Z (6 months ago)
- Topics: cldr, go, i18n, translation, translation-files
- Language: Go
- Homepage:
- Size: 489 KB
- Stars: 2,783
- Watchers: 32
- Forks: 261
- Open Issues: 16
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# go-i18n
 [](https://goreportcard.com/report/github.com/nicksnyder/go-i18n/v2) [](https://codecov.io/gh/nicksnyder/go-i18n) [](https://sourcegraph.com/github.com/nicksnyder/go-i18n?badge)
go-i18n is a Go [package](#package-i18n) and a [command](#command-goi18n) that helps you translate Go programs into multiple languages.
- Supports [pluralized strings](http://cldr.unicode.org/index/cldr-spec/plural-rules) for all 200+ languages in the [Unicode Common Locale Data Repository (CLDR)](https://www.unicode.org/cldr/charts/28/supplemental/language_plural_rules.html).
- Code and tests are [automatically generated](https://github.com/nicksnyder/go-i18n/tree/main/internal/plural/codegen) from [CLDR data](http://cldr.unicode.org/index/downloads).
- Supports strings with named variables using [text/template](http://golang.org/pkg/text/template/) syntax.
- Supports message files of any format (e.g. JSON, TOML, YAML).
## Package i18n
[](https://pkg.go.dev/github.com/nicksnyder/go-i18n/v2/i18n)
The i18n package provides support for looking up messages according to a set of locale preferences.
```go
import "github.com/nicksnyder/go-i18n/v2/i18n"
```
Create a Bundle to use for the lifetime of your application.
```go
bundle := i18n.NewBundle(language.English)
```
Load translations into your bundle during initialization.
```go
bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
bundle.LoadMessageFile("es.toml")
```
```go
// If use go:embed
//go:embed locale.*.toml
var LocaleFS embed.FS
bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
bundle.LoadMessageFileFS(LocaleFS, "locale.es.toml")
```
Create a Localizer to use for a set of language preferences.
```go
func(w http.ResponseWriter, r *http.Request) {
lang := r.FormValue("lang")
accept := r.Header.Get("Accept-Language")
localizer := i18n.NewLocalizer(bundle, lang, accept)
}
```
Use the Localizer to lookup messages.
```go
localizer.Localize(&i18n.LocalizeConfig{
DefaultMessage: &i18n.Message{
ID: "PersonCats",
One: "{{.Name}} has {{.Count}} cat.",
Other: "{{.Name}} has {{.Count}} cats.",
},
TemplateData: map[string]interface{}{
"Name": "Nick",
"Count": 2,
},
PluralCount: 2,
}) // Nick has 2 cats.
```
## Command goi18n
[](https://pkg.go.dev/github.com/nicksnyder/go-i18n/v2/goi18n)
The goi18n command manages message files used by the i18n package.
```
go install -v github.com/nicksnyder/go-i18n/v2/goi18n@latest
goi18n -help
```
### Extracting messages
Use `goi18n extract` to extract all i18n.Message struct literals in Go source files to a message file for translation.
```toml
# active.en.toml
[PersonCats]
description = "The number of cats a person has"
one = "{{.Name}} has {{.Count}} cat."
other = "{{.Name}} has {{.Count}} cats."
```
### Translating a new language
1. Create an empty message file for the language that you want to add (e.g. `translate.es.toml`).
2. Run `goi18n merge active.en.toml translate.es.toml` to populate `translate.es.toml` with the messages to be translated.
```toml
# translate.es.toml
[HelloPerson]
hash = "sha1-5b49bfdad81fedaeefb224b0ffc2acc58b09cff5"
other = "Hello {{.Name}}"
```
3. After `translate.es.toml` has been translated, rename it to `active.es.toml`.
```toml
# active.es.toml
[HelloPerson]
hash = "sha1-5b49bfdad81fedaeefb224b0ffc2acc58b09cff5"
other = "Hola {{.Name}}"
```
4. Load `active.es.toml` into your bundle.
```go
bundle.RegisterUnmarshalFunc("toml", toml.Unmarshal)
bundle.LoadMessageFile("active.es.toml")
```
### Translating new messages
If you have added new messages to your program:
1. Run `goi18n extract` to update `active.en.toml` with the new messages.
2. Run `goi18n merge active.*.toml` to generate updated `translate.*.toml` files.
3. Translate all the messages in the `translate.*.toml` files.
4. Run `goi18n merge active.*.toml translate.*.toml` to merge the translated messages into the active message files.
## For more information and examples:
- Read the [documentation](https://pkg.go.dev/github.com/nicksnyder/go-i18n/v2).
- Look at the [code examples](https://github.com/nicksnyder/go-i18n/blob/main/i18n/example_test.go) and [tests](https://github.com/nicksnyder/go-i18n/blob/main/i18n/localizer_test.go).
- Look at an example [application](https://github.com/nicksnyder/go-i18n/tree/main/example).
## Translations of this document
Community translations of this document may be found in the [.github](.github) folder.
These translations are maintained by the community, and are not maintained by the author of this project.
They are not guaranteed to be accurate or up-to-date.
## License
go-i18n is available under the MIT license. See the [LICENSE](LICENSE) file for more info.