Zen-i18n NPM | npm.io

zen-i18n

Flexible i18n internationalization for browser and node.js

Installation

npm install zen-i18n --save

Usage

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .add(`${__dirname}/locals/ru.yml`, 'ru')
  .add(`${__dirname}/locals/de.json`, 'de')
  .add({
    "hello": 'hei'
  }, 'fi')
  .add([{
    from: `very long,
           multiline text....`,
    to:   `очень длинный,
           многострочный текст....`,
  }], 'ru');

const __ = i18n.toUnderscore(); // or use like: i18n.get("hello")

console.log(__('hello', 'fi')); // -> hei
// or
i18n.setLocale('fi');
console.log(__('hello')); // -> hei

i18n.resetLocale();
console.log(__('hello')); // -> hello

or in browser with webpack / browserify

'use strict';
const I18n = require('zen-i18n/browser');

// !!! Browser version can't load translation from files

or angular

'use strict';
const angular = require('angular');
const i18n = require('zen-i18n/browser.angular');

angular.module('App', [i18n])
.config([
  'zenI18nProvider',
  (zenI18nProvider) => {
    zenI18nProvider
      .add({
        "hello": 'hei'
      }, 'fi');
  }
])
.controller([
  '$scope', 'zenI18n',
  ($scope, __) => {
    $scope.hello = __("hello", 'fi'); // "hei"
  }
]);

// !!! Browser version can't load translation from files

File examples

The file content type and its extension detected automatically.

Array-like:

# ru.yml
- form: hello
  to: привет

// ru.json
[{
  "form": "hello",
  "to": "привет"
}]

Object-like:

# ru.yml
hello: привет

// ru.json
{
  "hello": "привет"
}

API

I18n(options)

Arguments

options {Object} - token or options object
- default = 'en' {String} - default getter language

Returns

{I18n}

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

I18n#add(filename, lang?): I18n

Arguments

filename {String|Object|Array} - filename with translations or object/array-like translations
lang = options.default {String} - language of translations

Returns

{I18n}

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .add(`${__dirname}/locals/ru.yml`, 'ru')  // Filename
  .add(`${__dirname}/locals/de.json`, 'de') // Filename
  .add({  // Object-like
    "hello": 'hei'
  }, 'fi')
  .add([{ // Array-like
    from: `very long,
           multiline text....`,
    to:   `очень длинный,
           многострочный текст....`,
  }], 'ru');

I18n#addJSON(str, lang?): I18n

Arguments

str {String} - JSON string
lang {String} - language of translations. If undefined, will assume that passed only one language.

Returns

{I18n}

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .addJSON('{"ru":{"hello":"привет","your name":"ваше имя","bye":"пока"},"de":{"bye":"tschüss"}}')
  .addJSON('{"hello":"hei"}', 'fi');

I18n#get(text, lang?): String

Arguments

text {String} - text
lang = currentLanguage {String} - language of translations. By default set to options.default or currentLanguage from #setLocale

Returns

{String}

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .add({
    "hello": 'tschüss'
  }, 'de');

console.log(i18n.get("hello", "de")); // 'tschüss'

console.log(i18n.get("hello")); // hello

// such language is undefined
console.log(i18n.get("hello", "ru")); // hello

I18n#setLocale(lang): I18n

Arguments

lang {String} - name of language

Returns

{I18n}

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .add({
    "hello": 'tschüss'
  }, 'de');

i18n.setLocale('de');
console.log(i18n.get("hello")); // 'tschüss'

console.log(i18n.get("hello", 'en')); // hello

// such language is undefined
i18n.setLocale('ru');
console.log(i18n.get("hello")); // hello

I18n#getLocale(): String

Returns

{String} - current language name

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .add({
    "hello": 'tschüss'
  }, 'de');

console.log(i18n.getLocale()); // 'en'

i18n.setLocale('de');
console.log(i18n.getLocale()); // 'de'

I18n#resetLocale(): I18n

Returns

{I18n}

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .add({
    "hello": 'tschüss'
  }, 'de');

console.log(i18n.getLocale()); // 'en'

i18n.setLocale('de');
console.log(i18n.getLocale()); // 'de'

i18n.resetLocale();
console.log(i18n.getLocale()); // 'en'

I18n#toJSON(lang?): String

Arguments

lang {String} - language

Returns

{String}

Example

'use strict';
const I18n = require('zen-i18n');

const i18n = new I18n();

i18n
  .add({
    "hello": 'tschüss'
  }, 'de')
  .add({
    "hello": 'привет'
  }, 'ru');

console.log(i18n.toJSON()); // {"de":{"hello":"tschüss"},"ru":{"hello":"привет"}}

console.log(i18n.toJSON('de')); // {"hello":"tschüss"}

Changelog

0.9.0 `Stable`

Removed: #toUnderscore(defaultLang) because it complicates the API

0.8.0 `Stable`

Added: #toUnderscore now inherits all methods from i18n, except _transform

0.7.0 `Stable`

Added: #addJSON(str, lang?) adds translations from JSON string

0.6.0 `Stable`

Added: angular i18n version: zen-i18n/browser.angular

0.5.0 `Stable`

Added: browser i18n version: zen-i18n/browser

0.4.0 `Stable`

Added: #toJSON(lang?) returns JSON string with translations

0.3.0 `Stable`

Added: #toUnderscore(defaultLang) returns independent function #get() with specified default language

0.2.0 `Stable`

Added: #toUnderscore() returns independent function #get()

License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.