JavaScript preprocessor

Minimal preprocessing with /*@include*/

Previously used /*>. Converted to handle the more verbose @include to be compatible with the preprocess npm library.

Usage

jspp input > output

Example

main.js

/*@include script.js */
var style = "/*@include css/style.css */";

css/style.css

html, body {margin:0; padding:0}
/*@include http://js-preprocessor.com/example/css/child.css */
.my-style {background: #fffacc}

css/child.css

.i-am-child {}

script.js

var my_script;

$ jspp example/main.js
var my_script;

var style = "html, body {margin:0; padding:0}\
.i-am-child {}\
.my-style {background: #fffacc}"

JavaScript preprocessor in a wild: GitHub Live Preview, Faviconize Google, Nice Alert.

Installation

Ruby gem

$ gem install jspp

Testing

The included spec files can be run with ruby spec/jspp_spec.rb. As of 2014-10-21 the tests all fail due to language errors but the system appears to work when run on the example file.

Why reinvent the wheel?

Sprockets can't include non-JS files. JS preprocessor can.