babel-plugin-ltag

ltag is a babel plugin for client-side javascript localization using templates. You can tag your template strings with l and afterwards you will be able to generate different versions of the same code, for different languages.

Translations will be provided with .po files (an empty one will be generated for you). More on .po format

Usage

Install babel as global, and ltag plugin as a development dependency:

npm install -g babel-cli
npm install --save-dev babel-plugin-ltag

Create a file named .babelrc inside your project's root:

{
  "plugins": [
    ["babel-plugin-ltag", {
      // pristine po file, all l-tagged templates inside source are written here
      "pot": "file.pot",

      // actual po file to use for translation
      "po": "file.po"
    }]
  ]
}

Inside your application use ltag:

console.log(l`Hi dear, ${username}`);
console.log(l('context')`Another message`);

Run babel over your code:

babel test.js

.pot file will be generated, and with subsequent executions it will be updated.

msgid ""
msgstr "Content-Type: text/plain; charset=utf-8"

#: test.js:1
#, kde-format
msgid "Hi dear, %0"
msgstr ""

#: test.js:2
msgctxt "context"
msgid "Another message"
msgstr ""

Copy generated .pot file to a .po file and translate strings inside it. Run babel again and you'll have a transformed code.

TODO

• Plural Forms
• TRANSLATOR comments extraction