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@regru/babelfish

v1.1.4

Published

i18n with human friendly syntax

Downloads

2

Readme

BabelFish - human friendly i18n for JS

Build Status NPM version Coverage Status

Internationalisation 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 (via plurals-cldr).

Installation

node.js:

$ npm install babelfish

browser:

$ bower install babelfish

Use 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:

---
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

// 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

License

View the LICENSE file (MIT).