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https://github.com/nodeca/babelfish

human friendly i18n for javascript (node.js + browser)
https://github.com/nodeca/babelfish

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human friendly i18n for javascript (node.js + browser)

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README 

        
BabelFish - human friendly i18n for JS

======================================



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> Internationalization with easy syntax for node.js and browser.



Classic solutions use multiple phrases for plurals. `Babelfish` defines plurals

inline instead - that's more compact, and easy for programmers. Also, phrases

are grouped into nested scopes, like in Ruby.



`BabelFish` supports all plural rules from [unicode CLDR](http://cldr.unicode.org/index/charts)

(via [plurals-cldr](https://github.com/nodeca/plurals-cldr)).



### Installation



__node.js:__



```bash

$ npm install babelfish

```



__browser:__



```bash

$ bower install babelfish

```



Use [es5-shim](https://github.com/es-shims/es5-shim) for old browsers

compatibility.



### Phrases Syntax



- `#{varname}` Echoes value of variable

- `((Singular|Plural1|Plural2)):count` Plural form



example:



- `А у меня в кармане #{nails_count} ((гвоздь|гвоздя|гвоздей)):nails_count`



You can also omit anchor variable for plurals, by default it will be `count`.

Thus following variants are equal:



- `I have #{count} ((nail|nails))`

- `I have #{count} ((nail|nails)):count`



Also you can use variables in plural parts:



- `I have ((#{count} nail|#{count} nails))`



Need special zero form or overwrite any specific value? No problems:



- `I have ((=0 no nails|#{count} nail|#{count} nails))`



##### Escape chars



If you need `#{`, `((`, `|` or `))` somewhere in text, where it can be considered

as markup part - just escape them with `\`.



##### Example with YAML



As BabelFish flatten scopes, it's really fun and nice to store translations in

YAML files:



```yaml

---

ru-RU:

  profile: Профиль

  forums: Форумы

  apps:

    forums:

      new_topic: Новая тема

      last_post:

        title : Последнее сообщение

        by : от

  demo:

    apples: "На столе лежит #{count} ((яблоко|яблока|яблок))"

```



### Usage



```javascript

// Create new instance of BabelFish with default language/locale: 'en-GB'

var BabelFish = require('babelfish');

var i18n = new BabelFish('en-GB');



// Fill in some phrases

i18n.addPhrase('en-GB', 'demo.hello',         'Hello, #{user.name}.');

i18n.addPhrase('en-GB', 'demo.conv.wazup',    'Whats up?');

i18n.addPhrase('en-GB', 'demo.conv.alright',  'Alright, man!');

i18n.addPhrase('en-GB', 'demo.coerce',        'Total: #{count}.');



i18n.addPhrase('ru-RU', 'demo.hello',         'Привет, #{user.name}.');

i18n.addPhrase('ru-RU', 'demo.conv.wazup',    'Как дела?');



i18n.addPhrase('uk-UA', 'demo.hello',         'Здоровенькі були, #{user.name}.');



// Set locale fallback to use the most appropriate translation when possible

i18n.setFallback('uk-UA', 'ru-RU');



// Translate

var params = {user: {name: 'ixti'}};



i18n.t('ru-RU', 'demo.hello', params);  // -> 'Привет, ixti.'

i18n.t('ru-RU', 'demo.conv.wazup');     // -> 'Как дела?'

i18n.t('ru-RU', 'demo.conv.alright');   // -> 'Alright, man!'



i18n.t('uk-UA', 'demo.hello', params);  // -> 'Здоровенькі були, ixti.'

i18n.t('uk-UA', 'demo.conv.wazup');     // -> 'Как дела?'

i18n.t('uk-UA', 'demo.conv.alright');   // -> 'Alright, man!'



// When params is number or strings, it will be coerced to

// `{ count: XXX, value: XXX }` - use any of those in phrase.

i18n.t('en-GB', 'demo.coerce', 5);      // -> 'Total: 5.'



// You may wish to "dump" translations to load in browser later

// Dump will include all fallback translations and fallback rules

var locale_dump = i18n.stringify('ru-RU');



var i18n_new = require('babelfish')('en-GB'); // init without `new` also works

i18n_new.load(locale_dump);



// Use objects instead of strings (object/array/number/boolean) - can be

// useful to prepare bulk data for external libraries.

// Note, only JSON-supported types are ok (no date & regex)

i18n.addPhrase('en-GB', 'demo.boolean',  true);

i18n.addPhrase('en-GB', 'demo.number',   123);

i18n.addPhrase('en-GB', 'demo.array',    [1, 2, 3]);

// fourth param required for hashes (objects) to disable flattening,

// other types are autodetected

i18n.addPhrase('en-GB', 'demo.array',    { foo:1, bar:"2" }, false);

```



### Implementations in other languages



- Perl - [Locale::Babelfish](https://metacpan.org/pod/Locale::Babelfish)

- Ruby - https://github.com/regru/babelfish-ruby



### License



View the [LICENSE](https://github.com/nodeca/babelfish/blob/master/LICENSE) file (MIT).