Chosen winnow 2

        Chosen.prototype.winnow_results = function() {
            var found, option, part, parts, regex, regexAnchor, result, result_id, results, searchText, startpos, text, zregex, _i, _j, _len, _len2, _ref;
            this.no_results_clear();
            results = 0;
            searchText = this.search_field.val() === this.default_text ? "" : $('<div/>').text($.trim(this.search_field.val())).html();
            regexAnchor = this.search_contains ? "" : "^";
            regex = new RegExp(regexAnchor + searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
            zregex = new RegExp(searchText.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"), 'i');
            _ref = this.results_data;
            for (_i = 0, _len = _ref.length; _i < _len; _i++) {
                option = _ref[_i];
                if (!option.empty) {
                    if (option.group) {
                        $('#' + option.dom_id).css('display', 'none');
                    } else if (!(this.is_multiple && option.selected)) {
                        found = false;
                        result_id = option.dom_id;
                        result = $("#" + result_id);
                        if (regex.test(option.html)) {
                            found = true;
                            results += 1;
                        } else if (option.html.indexOf(" ") >= 0 || option.html.indexOf("[") === 0) {
                            parts = option.html.replace(/\[|\]/g, "").split(" ");
                            if (parts.length) {
                                for (_j = 0, _len2 = parts.length; _j < _len2; _j++) {
                                    part = parts[_j];
                                    if (regex.test(part)) {
                                        found = true;
                                        results += 1;
                                    }
                                }
                            }
                        }
                        if (found) {
                            if (searchText.length) {
                                startpos = option.html.search(zregex);
                                text = option.html.substr(0, startpos + searchText.length) + '</em>' + option.html.substr(startpos + searchText.length);
                                text = text.substr(0, startpos) + '<em>' + text.substr(startpos);
                            } else {
                                text = option.html;
                            }
                            result.html(text);
                            this.result_activate(result);
                            if (option.group_array_index != null) {
                                $("#" + this.results_data[option.group_array_index].dom_id).css('display', 'list-item');
                            }
                        } else {
                            if (this.result_highlight && result_id === this.result_highlight.attr('id')) {
                                this.result_clear_highlight();
                            }
                            this.result_deactivate(result);
                        }
                    }
                }
            }
            if (results < 1 && searchText.length) {
                return this.no_results(searchText);
            } else {
                return this.winnow_results_set_highlight();
            }
        };