Linux Shell Scripting Cookbook - Third Edition

Getting ready

We are going to write a JavaScript compressor tool as well as a decompressing tool. Consider the following JavaScript:

    $ cat sample.js
    function sign_out()
    { 

       $("#loading").show(); 
       $.get("log_in",{logout:"True"},

       function(){ 
         window.location="";
       }); 
     }

Our script needs to perform these steps to compress the JavaScript:

1. Remove newline and tab characters.
2. Remove duplicated spaces.
3. Replace comments that look like /* content */.

To decompress or to make the JavaScript more readable, we can use the following tasks:

• Replace ; with ;\n
• Replace { with {\n, and } with \n}