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ez-localize

v2.13.0

Published

Super-simple localization of strings in a Node/Browserify application

Downloads

590

Readme

ez-localize

Localizing an application should be easy, not hard. ez-localize makes it ridiculously simple.

Usage

Step 1: Use T() to wrap strings

Just replace:

console.log("Hello world!");

With:

console.log(T("Hello world!"));

Or use ES6 tagged templates:

console.log(T`Hello world!')

Or use localization requests with an explicit locale:

console.log(T({ locale: "fr", text: "dog" }));
console.log(T({ locale: "fr", text: "{0}'s dog", args: ["Dave"] }));
console.log(T({ locale: "fr", text: { _base: "en", en: "cat", fr: "chat" }}));

Step 2: Extract strings from your application

var extractor = require('ez-localize/extractor');

extractor.updateLocalizationFile("index.js", "localizations.json", {}, function() { console.log("done!")})

Step 3: Create a localizer and make global

var ezlocalize = require('ez-localize');
var localizations = require('localizations.json');

var localizer = new ezlocalize.Localizer(localizations, "en")
localizer.makeGlobal();

Step 4: Edit localizations.json to add other languages and translations

You're done!

Advanced

String substitution:

console.log(T("This works {0}%!", 100);
console.log(T`This works ${100}%!`);

React-style substitution:

console.log(T("This works {0}%!", { x: 10 });

will create array of ["This works ", { x: 10 }, "%!"]

Sometimes a word like "open" is ambiguous. You can specify the context to disambiguate:

console.log(T("open|verb"));

This will render as "open" in English and whatever the translation of "open|verb" is in the requested language.

It handles Handlebars too:

var options = { extensions: ['.js'], transform: [hbsfy] };
extractor.updateLocalizationsupdateLocalizationFile("index.js", "localizations.json", options, function() { console.log("done!")})

To register a T helper:

var ezlocalize = require('ez-localize');
var handlebars = require("hbsfy/runtime");
var localizations = require('localizations.json');

var localizer = new ezlocalize.Localizer(localizations, "en")
localizer.makeGlobal(handlebars);

Only relative requires are included by default. To include another module, pass externalModules to options, an optional list of external modules to include