gistfile1.txt

var matchersForFilter = function(properties) {
  var attributes = util.keys(properties);
  var attributesFilters = util.values(properties);

  var arraysWithAttributeAndAttributesFilters = util.zip(attributes,
                                                         attributesFilters);
  var arrayOfMatchersForAttribute =
    util.map(arraysWithAttributeAndAttributesFilters, matchersForAttribute);

  var matchers = util.flatten(arrayOfMatchersForAttribute, true);
  return matchers;
};

var matchersForAttribute = function(arrayWithAttributeAndFilters) {
  var attribute = arrayWithAttributeAndFilters[0];
  var filtersForAttribute = arrayWithAttributeAndFilters[1];

  var types = util.keys(filtersForAttribute);
  var values = util.values(filtersForAttribute);

  var arraysWithTypeAndValue = util.zip(types, values);
  var matchers = util.map(util.bind(matcherForTypeAndValue, this, attribute));
  return matchers;
};

var matcherForTypeAndValue = function(attribute, arrayWithTypeAndValue) {
  return {
    type: arrayWithTypeAndValue[0],
    attribute: attribute,
    value: arrayWithTypeAndValue[1]
  }
};