compare uri & query string in javascript ...

gistfile1.js

// @xxleite under [BeerWare] license

function parse_qs(fullpath) {
  var splitted_path = fullpath.split('?');
  var re = /[&\?]?([^=&?$?]+)=?([^&?$?]*)/ig, list = {
    path:splitted_path[0].replace(/(.*\/)([^$]*)/g, '$2'),
    qs:{}, iqs:{}}, res = [], current = '';

  while(res = re.exec(splitted_path[1])) {
    if(res[1].slice(-2) == '[]') {
      current = res[1].slice(0, -2);
      if(list.qs[current]) { list.qs[current].push(res[2]); list.iqs[current][res[2]] = true;
      } else { list.qs[current] = [res[2]]; list.iqs[current] = {}; list.iqs[current][res[2]] = true; }
    } else { list.qs[res[1]] = res[2]; }
  }

  return list;
}

function compare_url(url1, url2) {
  var _url1   = ('string' == typeof url1) ? parse_qs(url1) : url1;
  var _url2   = parse_qs(url2);
  var quality = 0;
  //
  if(_url2.path == _url1.path) { ++quality; }
  for(key in _url2.qs) {
    if(!(_url1.qs[key] && _url1.qs[key])) { continue; }
    ++quality;
    if(!(typeof(_url1.qs[key]) == 'object' && typeof(_url2.qs[key]) == 'object')) {
      if(_url1.qs[key] == _url2.qs[key]) { ++quality; }
      continue;
    }
    ++quality;
    for(var z = 0; z < _url2.qs[key].length; ++z) {
      if(_url1.iqs[key][ _url2.qs[key][z] ]) {
        quality += .1;
      }
    }
  }
  return quality;
}


var main_url = "/wp-admin/edit.php?post_type=page&page_template[]=page-templates/familia.php&page_template[]=page-templates/nnnn.php&page_template[]=page-templates/vvvv.php";
var comparables = [
  "/wp-admin/edit.php?post_type=page",
  "/wp-admin/edit-tag.php?post_type=page",
  "/wp-admin/edit.php?post_type=page&page_template=page-templates/familia.php",
  "/wp-admin/edit.php?post_type=page&page_template[]=page-templates/familia.php&page_template[]=page-templates/nnnn.php",
  "/wp-admin/facebook.php?donothing=yeah"
];

var main_url_obj = parse_qs(main_url);
for(var t = 0; t < comparables.length; ++t) {
  console.log( compare_url(main_url_obj, comparables[t]) );
}