gistfile1.js

            _getLocalSuggestions: function(terms) {
                var that = this, firstChars = {}, lists = [], shortestList, suggestions = [];
                utils.each(terms, function(i, term) {
                    var firstChar = term.charAt(0);
                    !~utils.indexOf(firstChars, firstChar) && firstChars.push(firstChar);
                });
                utils.each(firstChars, function(i, firstChar) {
                    var list = that.adjacencyList[firstChar];
                    if (!list) {
                        return false;
                    }
                    lists.push(list);
                    if (!shortestList || list.length < shortestList.length) {
                        shortestList = list;
                    }
                });
                if (lists.length < firstChars.length) {
                    return [];
                }
                utils.each(shortestList, function(i, id) {
                    var item = that.itemHash[id], isCandidate, isMatch;
                    isCandidate = utils.every(lists, function(list) {
                        return ~utils.indexOf(list, id);
                    });
                    isMatch = isCandidate && utils.every(terms, function(term) {
                        return utils.some(item.tokens, function(token) {
                            return token.indexOf(term) === 0;
                        });
                    });
                    isMatch && suggestions.push(item);
                });
                return suggestions;
            },