chriseppstein/compass

function unique(arrayName)
 {
    var newArray = new Array();
    label: for (var i = 0; i < arrayName.length; i++)
    {
        for (var j = 0; j < newArray.length; j++)
        {
            if (newArray[j] == arrayName[i])
            continue label;
        }
        newArray[newArray.length] = arrayName[i];
    }
    return newArray;
}
function search(query, callback) {
  var terms = $.trim(query).replace(/[\W\s_]+/m,' ').toLowerCase().split(/\s+/);
  var matching_ids = null;
  for (var i = 0; i < terms.length; i++) {
    var term = terms[i];
    var exactmatch = index.terms[term] || [];
    var approxmatch = index.approximate[term] || [];
    var ids = unique(exactmatch.concat(approxmatch));
    if (matching_ids) {
      matching_ids = $.grep(matching_ids, function(id) {
        return ids.indexOf(id) != -1;
      });
    } else {
      matching_ids = ids;
    }
  }
  callback($.map(matching_ids, function(id){ return index.items[id]; }))
}

var index = <%= search_index.to_json %>;