This part takes the Highlight.js library as an example to show you how to declare an eXo Platform module. This library is actually a jQuery plugin which follows the self-invoking pattern that consumes the jquery dependency as $. Here is an overview of the Highlight.js source:

(function($) {
          ...
}(jQuery)

Assume that you have added it to the javascript folder in your extension, and now declare this module using the XML declaration in /WEB-INF/gatein-resources.xml as follows:

<module>

  <name>highlight</name>

  <script>

    <path>/javascript/highlight/highlight.js</path>

  </script>

  <depends>

    <module>jquery</module>

    <as>jQuery</as>

  </depends>

</module>

The module is named highlight and uses the /javascript/highlight/highlight.js source code bundled in the war file.

The depends tag creates a dependency on the jquery module. The dependency is aliased as jQuery using the as tag to match the $ argument of the Highlight.js self-executing function. Refer here to check which jQuery versions are provided in eXo Platform.