Syntax highlighting for embedded gists

embed-gist.js

/*
 
 To use this file, save it to a JS file and include it (<script src=) or 
 wrap it in <script type="text/javascript"> </script> tags on the page you are embedding the code on.
 
 1) When you craft the script tag for including the gist assign it a class="embed-gist"
 
 2) Give a file parameter, this is the name of the file, this is something absolutely necessary, 
 needs to be the first parameter (before lines)
 
 3) after the file parameter, add a lines paramter
 the parameters "lines" and values represent the line numbers. Multiple lines (example) 1-20 and single line (example)
 = 22. 
 
 Looks like this:
 
 <script class="embed-gist" src="https://gist.github.com/anonymous/00000.js?file=myfile.java&lines=1-20,22,33"></script>
 
 Warning, do not use spaces when entering comma separate line numbers or a filename.

*/

var fileName;

function setFileName(name){
  var nameArr = name.split('%20').join("-").toLowerCase().split('.');
  fileName = "file-" + nameArr.join('-') + "-LC";
};

function highlightLines(lines){
    var lineArray = lines.split('-');
    var begin = parseInt(lineArray[0], 10);
    var end = parseInt(lineArray[1], 10);
    for (var n = begin; n < end + 1; ++ n)
    $("#"+ fileName + n).css('background-color', 'rgb(255, 255, 204)');
      
};

function beginHighlight(){
   $('.embed-gist').each(function() {
   		var scriptUrl = $(this).attr("src");
   		
   		var query = scriptUrl.split('?')[1];
   		var params = query.split('&');

   		$.each(params, function(i, param) {
   		   var pSplit = param.split("=");
   		   var key = pSplit[0]; 
   		   var val = pSplit[1];
   		   if (key == "lines"){
   		 	lineSets = val.split(',');
   		 	$.each(lineSets, function(index, value) {
   		       if (/-/i.test(value)) {
   		         highlightLines(value);
   		       } else {
   		        $("#" + fileName + value).css('background-color', 'rgb(255, 255, 204)');   
   		           }    
   		     });
   		   } else if (key == "file") {
   		     setFileName(val);
   		   }
   		   	
   		});
   }); 
};
  
$(document).ready(beginHighlight());