grunt-i18n-properties

grunt plugin for converting java property i18n and l10n files to javascript source or json

Getting Started

This plugin requires Grunt ~0.4.5

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-i18n-properties --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-i18n-properties');

The "i18n" task

Overview

i18n converts a bunch of java i18n property files into locale specific json files. A bundle of i18n files have a three level hierarchy:

1. specific localisations for regional language variations ( eg en_AU, pt_BR ) - usually only some keys are localised
2. a file for each supported language ( eg es, it, jp, zh) - most keys are translated
3. the primary development (fallback) language (often English en) - all keys are available in the development language

Project_en.properties

Project.Name = grunt-i18n-properties
Project.Description = A great little project

Project_es.properties

Project.Description = Un pequeño gran proyecto

Project_en_AU.properties

Project.Description = A little ripper of a project

grunt-i18n-properties provides the best available translation from any of the three levels that are available

for example

generating an en_AU file will produce

Project.Name = grunt-i18n-properties
Project.Description = A little ripper of a project

selecting the Project.Name from the generic en file, and the Project.Description from the region specific en_AU file.

generating a pt_BR file will produce results just from the en file ( providing Brazilian portuguese users with english ), since neither pt nor br_BR files are available.

Options

options.process

Type: Function( properties, language )

Default value: JSON.stringify

A function that transforms the final properties map into the string that is written to the language file.

convert to json

function( prop ) { return JSON.stringify( prop ); }

push the properties into a javascript object with the language as a key

function( prop, lang ) { return "strings['" + lang + "'] = " + JSON.stringify( prop ) + ";"}

pretty print json

function( prop ) { return JSON.stringify( prop, null, "  " ); }

options.primary

Type: String or false

Default value: "en"

The primary development language. Eg the fallback language used when a key has not been translated yet if primary is false, no fallback is used, so untranslated keys will be missing

options.langs

Type: Array of Strings

Default value: ["en_AU"]

An array of all the languages you wish to support. Typically you would provide languages with the regional component, though this is not required.

a typical example might look like ["en_US", "en_UK", "en_AU", "fr_FR", "de_DE", "it_IT", "es_ES" "pt_PT", "zh_CN", "ja_JP", "ko_KR", "ar_EG"]

options.dest

Type: String

Default value: "strings/{lang}/{bundle}.json"

A path pattern for writing out the i18n json files.

{lang} is replaced with one of the codes from options.langs

{bundle} is replaced with the name of the language bundle. In the example above this would be Project

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style.

Release History

0.1.0 Initial Publish