Open-ILS/web/opac/common/js/CGI.js

   1 function CGI() {
   2         /* load up the url parameters */
   3
   4         this._keys = new Array();
   5         this.data = new Object();
   6
   7         var string = location.search.replace(/^\?/,"");
   8
   9         var key = "";
  10         var value = "";
  11         var inkey = true;
  12         var invalue = false;
  13
  14         for( var idx = 0; idx!= string.length; idx++ ) {
  15
  16                 var c = string.charAt(idx);
  17
  18                 if( c == "=" )  {
  19                         invalue = true;
  20                         inkey = false;
  21                         continue;
  22                 }
  23
  24                 if(c == "&" || c == ";") {
  25                         inkey = 1;
  26                         invalue = 0;
  27                         if( ! this.data[key] ) this.data[key] = [];
  28                         this.data[key].push(decodeURIComponent(value));
  29                         this._keys.push(key);
  30                         key = ""; value = "";
  31                         continue;
  32                 }
  33
  34                 if(inkey) key += c;
  35                 else if(invalue) value += c;
  36         }
  37
  38         if( ! this.data[key] ) this.data[key] = [];
  39         this.data[key].push(decodeURIComponent(value));
  40         this._keys.push(key);
  41 }
  42
  43 /* returns the value for the given param.  If there is only one value for the
  44    given param, it returns that value.  Otherwise it returns an array of values
  45  */
  46 CGI.prototype.param = function(p) {
  47         if(this.data[p] == null) return null;
  48         if(this.data[p].length == 1)
  49                 return this.data[p][0];
  50         return this.data[p];
  51 }
  52
  53 /* returns an array of param names */
  54 CGI.prototype.keys = function() {
  55         return this._keys;
  56 }
  57
  58 /* debuggin method */
  59 CGI.prototype.toString = function() {
  60         var string = "";
  61         var keys = this.keys();
  62
  63         for( var k in keys ) {
  64                 string += keys[k] + " : ";
  65                 var params = this.param(keys[k]);
  66
  67                 for( var p in params ) {
  68                         string +=  params[p] + " ";
  69                 }
  70                 string += "\n";
  71         }
  72         return string;
  73 }
  74
  75