Function process

docs/tests/v2/es6/js/sanddance.js:89356–89365

(update)

prototype.transform = function (_, pulse) {
  function process(update) {
    return function (tuple) {
      var tokens = tokenize(get(tuple), _.case, match) || [],
          t;

      for (var i = 0, n = tokens.length; i < n; ++i) {
        if (!stop.test(t = tokens[i])) update(t);
      }
    };
  }

  var init = this._parameterCheck(_, pulse),
      counts = this._counts,