vendors/tempy.js/collatePatterns
    function collatePatterns(neg, pos, options) {
      let onlyNegative = filterPatterns(neg, pos, "-", false, options) || [];
      let onlyPositive = filterPatterns(pos, neg, "", false, options) || [];
      let intersected = filterPatterns(neg, pos, "-?", true, options) || [];
      let subpatterns = onlyNegative.concat(intersected).concat(onlyPositive);
      return subpatterns.join("|");
    }