フォームの入力値をデシリアライズするjQueryプラグイン

jquery.deserialize.js

/**
 * jQuery deserialize plugin
 * public domain
 *
 * 使用例:
 * $('form').deserialize('checkbox[]=1&checkbox[]=2&checkbox[]=3');
 * $('form').deserialize(location.search);
 */
(function($){
  $.fn.deserialize = function(s, options){
    var opts = $.extend({}, $.fn.deserialize.defaults, options);
  
    return this.each(function(){
      var self = this;
      var parts = s.replace(/^\?/, '').split('&');
      var data = {};

      $.each(parts, function(i, part){
        var pair = part.split('=');
        var name = decodeURIComponent(pair[0]);
        var value = decodeURIComponent(pair[1]);
        
        if (opts.filter && !opts.filter.call(self, name, value)) return;

        if (!(name in data)) data[name] = [];
        data[name].push(value);
      });
      
      $.each(data, function(name, values){
        $('[name="' + name + '"]:input', self).val(values);
      });
    });
  };
  $.fn.deserialize.defaults = {
    filter: function(name, value){
      if ($('[name="' + name + '"]:input', this).is(':submit')) return false;
      return true;
    }
  };
})(jQuery);