From ae743856b23ccd1a6e02cde789d2aba8e734070f Mon Sep 17 00:00:00 2001
From: "tg(x)" <*@tg-x.net>
Date: Tue, 1 Mar 2016 15:17:19 +0100
Subject: walle-wx-i18n

---
 dev-wallet-wx.rst | 34 +++++++++++++++++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

(limited to 'dev-wallet-wx.rst')

diff --git a/dev-wallet-wx.rst b/dev-wallet-wx.rst
index a458ebae..5f21ace9 100644
--- a/dev-wallet-wx.rst
+++ b/dev-wallet-wx.rst
@@ -34,7 +34,7 @@ Project Structure
 -----------------
 
 .. parsed-literal::
-  
+
   **manifest.json**               extension configuration
   **package.json**                node.js package configuration
   **tsconfig.json**               TypeScript compiler configuration
@@ -148,3 +148,35 @@ library.
 Run the default test suite with ``npm run test``, which will
 call `mocha` with the right parameters.
 
+
+--------------------
+Internationalisation
+--------------------
+
+Strings in the JavaScript code are internationalised using the following functions,
+
+- *i18n*: translate string with arbitrary arguments, the result is returned as string.
+.. code-block:: js
+  ``i18n`You have ${n} coins.``
+
+- *i18n.parts*: Interpolate i18nized values with arbitrary objects. Useful for example to include HTML elements.
+.. code-block:: js
+  ``i18n.parts`Visit ${link} to get more coins.```
+
+- *i18n.pluralize*: translate with plural form
+
+.. code-block:: js
+i18n.pluralize(
+  i18n`${i}: you have ${i18n.number(n)} coin.`,
+      `${i}: you have ${i18n.number(n)} coins.`);
+
+These functions are defined in ``lib/i18n.ts``.
+Include ``lib/vendor/jed.js``, ``lib/i18n.js``, ``lib/i18n-strings.js`` to use them.
+
+To extract strings from sources and update the .po files, run:
+
+.. code-block:: sh
+  $ make i18n
+
+In static HTML files the ``lang`` attribute is used for language-specific strings.
+``lib/i18n.js`` and ``style/lang.css`` needs to be included for this to work.
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