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- # y18n
-
- [![Build Status][travis-image]][travis-url]
- [![Coverage Status][coveralls-image]][coveralls-url]
- [![NPM version][npm-image]][npm-url]
- [![js-standard-style][standard-image]][standard-url]
-
- The bare-bones internationalization library used by yargs.
-
- Inspired by [i18n](https://www.npmjs.com/package/i18n).
-
- ## Examples
-
- _simple string translation:_
-
- ```js
- var __ = require('y18n').__
-
- console.log(__('my awesome string %s', 'foo'))
- ```
-
- output:
-
- `my awesome string foo`
-
- _pluralization support:_
-
- ```js
- var __n = require('y18n').__n
-
- console.log(__n('one fish %s', '%d fishes %s', 2, 'foo'))
- ```
-
- output:
-
- `2 fishes foo`
-
- ## JSON Language Files
-
- The JSON language files should be stored in a `./locales` folder.
- File names correspond to locales, e.g., `en.json`, `pirate.json`.
-
- When strings are observed for the first time they will be
- added to the JSON file corresponding to the current locale.
-
- ## Methods
-
- ### require('y18n')(config)
-
- Create an instance of y18n with the config provided, options include:
-
- * `directory`: the locale directory, default `./locales`.
- * `updateFiles`: should newly observed strings be updated in file, default `true`.
- * `locale`: what locale should be used.
- * `fallbackToLanguage`: should fallback to a language-only file (e.g. `en.json`)
- be allowed if a file matching the locale does not exist (e.g. `en_US.json`),
- default `true`.
-
- ### y18n.\_\_(str, arg, arg, arg)
-
- Print a localized string, `%s` will be replaced with `arg`s.
-
- ### y18n.\_\_n(singularString, pluralString, count, arg, arg, arg)
-
- Print a localized string with appropriate pluralization. If `%d` is provided
- in the string, the `count` will replace this placeholder.
-
- ### y18n.setLocale(str)
-
- Set the current locale being used.
-
- ### y18n.getLocale()
-
- What locale is currently being used?
-
- ### y18n.updateLocale(obj)
-
- Update the current locale with the key value pairs in `obj`.
-
- ## License
-
- ISC
-
- [travis-url]: https://travis-ci.org/yargs/y18n
- [travis-image]: https://img.shields.io/travis/yargs/y18n.svg
- [coveralls-url]: https://coveralls.io/github/yargs/y18n
- [coveralls-image]: https://img.shields.io/coveralls/yargs/y18n.svg
- [npm-url]: https://npmjs.org/package/y18n
- [npm-image]: https://img.shields.io/npm/v/y18n.svg
- [standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg
- [standard-url]: https://github.com/feross/standard
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