https://andrewnichollrealtor.com/wp-content/plugins/mx_pages/listings/javascripts/jquery.query-2.1.7.js

1/**
2 * jQuery.query - Query String Modification and Creation for jQuery
3 * Written by Blair Mitchelmore (blair DOT mitchelmore AT gmail DOT com)
4 * Licensed under the WTFPL (http://sam.zoy.org/wtfpl/).
5 * Date: 2009/8/13
6 *
7 * @author Blair Mitchelmore
8 * @version 2.1.7
9 *
10 **/
11new function(settings) { 
12  // Various Settings
13  var $separator = settings.separator || '&';
14  var $spaces = settings.spaces === false ? false : true;
15  var $suffix = settings.suffix === false ? '' : '[]';
16  var $prefix = settings.prefix === false ? false : true;
17  var $hash = $prefix ? settings.hash === true ? "#" : "?" : "";
18  var $numbers = settings.numbers === false ? false : true;
19  
20  jQuery.query = new function() {
21    var is = function(o, t) {
22      return o != undefined && o !== null && (!!t ? o.constructor == t : true);
23    };
24    var parse = function(path) {
25      var m, rx = /\[([^[]*)\]/g, match = /^([^[]+)(\[.*\])?$/.exec(path), base = match[1], tokens = [];
26      while (m = rx.exec(match[2])) tokens.push(m[1]);
27      return [base, tokens];
28    };
29    var set = function(target, tokens, value) {
30      var o, token = tokens.shift();
31      if (typeof target != 'object') target = null;
32      if (token === "") {
33        if (!target) target = [];
34        if (is(target, Array)) {
35          target.push(tokens.length == 0 ? value : set(null, tokens.slice(0), value));
36        } else if (is(target, Object)) {
37          var i = 0;
38          while (target[i++] != null);
39          target[--i] = tokens.length == 0 ? value : set(target[i], tokens.slice(0), value);
40        } else {
41          target = [];
42          target.push(tokens.length == 0 ? value : set(null, tokens.slice(0), value));
43        }
44      } else if (token && token.match(/^\s*[0-9]+\s*$/)) {
45        var index = parseInt(token, 10);
46        if (!target) target = [];
47        target[index] = tokens.length == 0 ? value : set(target[index], tokens.slice(0), value);
48      } else if (token) {
49        var index = token.replace(/^\s*|\s*$/g, "");
50        if (!target) target = {};
51        if (is(target, Array)) {
52          var temp = {};
53          for (var i = 0; i < target.length; ++i) {
54            temp[i] = target[i];
55          }
56          target = temp;
57        }
58        target[index] = tokens.length == 0 ? value : set(target[index], tokens.slice(0), value);
59      } else {
60        return value;
61      }
62      return target;
63    };
64    
65    var queryObject = function(a) {
66      var self = this;
67      self.keys = {};
68      
69      if (a.queryObject) {
70        jQuery.each(a.get(), function(key, val) {
71          self.SET(key, val);
72        });
73      } else {
74        jQuery.each(arguments, function() {
75          var q = "" + this;
76          q = q.replace(/^[?#]/,''); // remove any leading ? || #
77          q = q.replace(/[;&]$/,''); // remove any trailing & || ;
78          if ($spaces) q = q.replace(/[+]/g,' '); // replace +'s with spaces
79          
80          jQuery.each(q.split(/[&;]/), function(){
81            var key = decodeURIComponent(this.split('=')[0] || "");
82            var val = decodeURIComponent(this.split('=')[1] || "");
83            
84            if (!key) return;
85            
86            if ($numbers) {
87              if (/^[+-]?[0-9]+\.[0-9]*$/.test(val)) // simple float regex
88                val = parseFloat(val);
89              else if (/^[+-]?[0-9]+$/.test(val)) // simple int regex
90                val = parseInt(val, 10);
91            }
92            
93            val = (!val && val !== 0) ? true : val;
94            
95            if (val !== false && val !== true && typeof val != 'number')
96              val = val;
97            
98            self.SET(key, val);
99          });
100        });
101      }
102      return self;
103    };
104    
105    queryObject.prototype = {
106      queryObject: true,
107      has: function(key, type) {
108        var value = this.get(key);
109        return is(value, type);
110      },
111      GET: function(key) {
112        if (!is(key)) return this.keys;
113        var parsed = parse(key), base = parsed[0], tokens = parsed[1];
114        var target = this.keys[base];
115        while (target != null && tokens.length != 0) {
116          target = target[tokens.shift()];
117        }
118        return typeof target == 'number' ? target : target || "";
119      },
120      get: function(key) {
121        var target = this.GET(key);
122        if (is(target, Object))
123          return jQuery.extend(true, {}, target);
124        else if (is(target, Array))
125          return target.slice(0);
126        return target;
127      },
128      SET: function(key, val) {
129        var value = !is(val) ? null : val;
130        var parsed = parse(key), base = parsed[0], tokens = parsed[1];
131        var target = this.keys[base];
132        this.keys[base] = set(target, tokens.slice(0), value);
133        return this;
134      },
135      set: function(key, val) {
136        return this.copy().SET(key, val);
137      },
138      REMOVE: function(key) {
139        return this.SET(key, null).COMPACT();
140      },
141      remove: function(key) {
142        return this.copy().REMOVE(key);
143      },
144      EMPTY: function() {
145        var self = this;
146        jQuery.each(self.keys, function(key, value) {
147          delete self.keys[key];
148        });
149        return self;
150      },
151      load: function(url) {
152        var hash = url.replace(/^.*?[#](.+?)(?:\?.+)?$/, "$1");
153        var search = url.replace(/^.*?[?](.+?)(?:#.+)?$/, "$1");
154        return new queryObject(url.length == search.length ? '' : search, url.length == hash.length ? '' : hash);
155      },
156      empty: function() {
157        return this.copy().EMPTY();
158      },
159      copy: function() {
160        return new queryObject(this);
161      },
162      COMPACT: function() {
163        function build(orig) {
164          var obj = typeof orig == "object" ? is(orig, Array) ? [] : {} : orig;
165          if (typeof orig == 'object') {
166            function add(o, key, value) {
167              if (is(o, Array))
168                o.push(value);
169              else
170                o[key] = value;
171            }
172            jQuery.each(orig, function(key, value) {
173              if (!is(value)) return true;
174              add(obj, key, build(value));
175            });
176          }
177          return obj;
178        }
179        this.keys = build(this.keys);
180        return this;
181      },
182      compact: function() {
183        return this.copy().COMPACT();
184      },
185      toString: function() {
186        var i = 0, queryString = [], chunks = [], self = this;
187        var encode = function(str) {
188          str = str + "";
189          if ($spaces) str = str.replace(/ /g, "+");
190          return encodeURIComponent(str);
191        };
192        var addFields = function(arr, key, value) {
193          if (!is(value) || value === false) return;
194          var o = [encode(key)];
195          if (value !== true) {
196            o.push("=");
197            o.push(encode(value));
198          }
199          arr.push(o.join(""));
200        };
201        var build = function(obj, base) {
202          var newKey = function(key) {
203            return !base || base == "" ? [key].join("") : [base, "[", key, "]"].join("");
204          };
205          jQuery.each(obj, function(key, value) {
206            if (typeof value == 'object') 
207              build(value, newKey(key));
208            else
209              addFields(chunks, newKey(key), value);
210          });
211        };
212        
213        build(this.keys);
214        
215        if (chunks.length > 0) queryString.push($hash);
216        queryString.push(chunks.join($separator));
217        
218        return queryString.join("");
219      }
220    };
221    
222    return new queryObject(location.search, location.hash);
223  };
224}(jQuery.query || {}); // Pass in jQuery.query as settings object