Localization module (marked with WeChat's mini-program supported)

Tested on macOS only. When you execute npm --prefix ... command as shown below on other platforms, it might has problem, or none at all.

Install this NPM module with npm install --save ltsx.

Import into your source code by

var { ltsx, langs } = require('ltsx')

lts provides main APIs for you to use.
langs provides language constants for you to use as parameter when calling one of those APIs.

See docs and look on the right sidebar.

Change directory to the root of your WeChat's mini-program project.

Install this module via npm install --save ltsx. No worry about existence of node_modules directory. Mini-program IDE has built-in ability to ignore it both while developing, and submitting. We can leave such directory as it is if you like.

Execute npm --prefix node_modules/ltsx run wechat-mp -- $PWD/src/wxs/ in which path argument can be any depends on your need.

Notice that we use $PWD to get the root directory of your WeChat's mini-program. This is because current directory of such executing command is still at node_modules/ltsx.

Then modify ./src/wxs/ltsx/defs.wxs for your pre-defined localized text that will be used throughout the application life cycle.
Example of its content is as follows.

// pre-defined definition file

module.exports = {
	"index.js": {
		"button_ok_label_example": {
			"en_US": "OK",
			"zh_Hans": "好"
		}
	}
};

Then inside your .wxml file, you would have something like this.

Path is relative. So it depends on which source file you try to include ltsx to work with your code. Modify it accordingly.

<wxs src="./src/wxs/ltsx/ltsx.wxs" module="ltsx" />
<wxs src="./src/wxs/ltsx/const-lang.wxs" module="langs" />

<view>
	<!-- Get pre-defined localized text -->
	<label>{{ ltsx.get(langs.English, 'index.js', 'button_ok_label_example') }}</label>
</view>

...

or define lang variable in your .js code and use it dynamically in .wxml file as follows.

<wxs src="./src/wxs/ltsx.wxs" module="ltsx" />

<view>
	<!-- Get pre-defined localized text -->
	<label>{{ ltsx.get(lang, 'index.js', 'button_ok_label') }}</label>
</view>

...

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