URL & Query String Parser

url-query-string-parser.js

var URL = function(url){
  this.url = url;
  this.parsed = false;
  return this;
};
 
URL.prototype.queryStrings = function(queryString){
  var qs = queryString.replace('?', '').split('&'), result = {};
  for(var i=0; i<qs.length; i++) {
    var item = qs[i].split("=");
    if(item[0].length > 0){
      result[item[0]] = item[1];
    }
  }
  return result;
};

URL.prototype.get = function(type, key){
  var parse = (this.parsed || this.parse());
  if(parse && parse[type] && parse[type][key]){
    return parse[type][key];
  } else {
    return false;
  }
};

URL.prototype.regex = function(pattern){
  var pattern = new RegExp(pattern);
  var check   = pattern.test(this.url);
  if(check){
    return this.url.match(pattern)[1];
  }
  return false;
};
 
URL.prototype.parse = function(){
  var parse  = null, result = null;
  if(this.url){
    parse = document.createElement('a');
    parse.href = ((this.url.indexOf("http://") !== -1 || this.url.indexOf("https://") !== -1) ? this.url : "http://" + this.url);
    if(parse.host && parse.host.indexOf('.') == -1){
      return false;
    }
    result = {
      protocol: (parse.protocol ? parse.protocol.replace(':','') : false),
      path:     parse.pathname,
      query:    this.queryStrings(parse.search),
      host:     parse.host
    };
    this.parsed = result;
    return result;
  } else {
    return false;
  }
};
 
URL.prototype.match = function(matches, settings){
  var parse = (this.parsed || this.parse());
  for(var k in matches){
    if(typeof matches[k] == "string"){
      if(parse[k] != matches[k]){
        return false;
      }
    } else if(typeof matches[k] == "object"){
      for(var x in matches[k]){
        if(typeof matches[k][x] === "string" && matches[k][x] == "isSet"){
          if(parse[k][x] == ""){
            return false;
          }
        } else {
          if(parse[k][x] != matches[k][x]){
            return false;
          }
        }
      }
    }
  }
  return true;
};