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   1  /*!
   2   * jQuery Cookie Plugin v1.4.1
   3   * https://github.com/carhartl/jquery-cookie
   4   *
   5   * Copyright 2013 Klaus Hartl
   6   * Released under the MIT license
   7   */
   8  (function (factory) {
   9      if (typeof define === 'function' && define.amd) {
  10          // AMD
  11          define(['jquery'], factory);
  12      } else if (typeof exports === 'object') {
  13          // CommonJS
  14          factory(require('jquery'));
  15      } else {
  16          // Browser globals
  17          factory(jQuery);
  18      }
  19  }(function ($) {
  20  
  21      var pluses = /\+/g;
  22  
  23  	function encode(s) {
  24          return config.raw ? s : encodeURIComponent(s);
  25      }
  26  
  27  	function decode(s) {
  28          return config.raw ? s : decodeURIComponent(s);
  29      }
  30  
  31  	function stringifyCookieValue(value) {
  32          return encode(config.json ? JSON.stringify(value) : String(value));
  33      }
  34  
  35  	function parseCookieValue(s) {
  36          if (s.indexOf('"') === 0) {
  37              // This is a quoted cookie as according to RFC2068, unescape...
  38              s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
  39          }
  40  
  41          try {
  42              // Replace server-side written pluses with spaces.
  43              // If we can't decode the cookie, ignore it, it's unusable.
  44              // If we can't parse the cookie, ignore it, it's unusable.
  45              s = decodeURIComponent(s.replace(pluses, ' '));
  46              return config.json ? JSON.parse(s) : s;
  47          } catch(e) {}
  48      }
  49  
  50  	function read(s, converter) {
  51          var value = config.raw ? s : parseCookieValue(s);
  52          return $.isFunction(converter) ? converter(value) : value;
  53      }
  54  
  55      var config = $.cookie = function (key, value, options) {
  56  
  57          // Write
  58  
  59          if (value !== undefined && !$.isFunction(value)) {
  60              options = $.extend({}, config.defaults, options);
  61  
  62              if (typeof options.expires === 'number') {
  63                  var days = options.expires, t = options.expires = new Date();
  64                  t.setTime(+t + days * 864e+5);
  65              }
  66  
  67              return (document.cookie = [
  68                  encode(key), '=', stringifyCookieValue(value),
  69                  options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
  70                  options.path    ? '; path=' + options.path : '',
  71                  options.domain  ? '; domain=' + options.domain : '',
  72                  options.secure  ? '; secure' : ''
  73              ].join(''));
  74          }
  75  
  76          // Read
  77  
  78          var result = key ? undefined : {};
  79  
  80          // To prevent the for loop in the first place assign an empty array
  81          // in case there are no cookies at all. Also prevents odd result when
  82          // calling $.cookie().
  83          var cookies = document.cookie ? document.cookie.split('; ') : [];
  84  
  85          for (var i = 0, l = cookies.length; i < l; i++) {
  86              var parts = cookies[i].split('=');
  87              var name = decode(parts.shift());
  88              var cookie = parts.join('=');
  89  
  90              if (key && key === name) {
  91                  // If second argument (value) is a function it's a converter...
  92                  result = read(cookie, value);
  93                  break;
  94              }
  95  
  96              // Prevent storing a cookie that we couldn't decode.
  97              if (!key && (cookie = read(cookie)) !== undefined) {
  98                  result[name] = cookie;
  99              }
 100          }
 101  
 102          return result;
 103      };
 104  
 105      config.defaults = {};
 106  
 107      $.removeCookie = function (key, options) {
 108          if ($.cookie(key) === undefined) {
 109              return false;
 110          }
 111  
 112          // Must not alter options, thus extending a fresh object...
 113          $.cookie(key, '', $.extend({}, options, { expires: -1 }));
 114          return !$.cookie(key);
 115      };
 116  
 117  }));