* Get the flags for a regexp from the options. * * @param {Object} options * @return {string}

* A simple `Array#map`-like wrapper to work with domain name strings or email * addresses. * @private * @param {String} domain The domain name o

* Parse a string for the raw tokens. * * @param {string} str * @param {Object=} options * @return {!Array}

* Transform an array into a regexp. * * @param {!Array} path * @param {Array} keys * @param {!Object} options * @return {!RegExp}

* Converts a basic code point into a digit/integer. * @see `digitToBasic()` * @private * @param {Number} codePoint The basic numeric code point

* Convert encoding of an UTF-8 string or a buffer * * @param {String|Buffer} str String to be converted * @param {String} to Encoding to be convert

* Convert encoding of a string with node-iconv (if available) * * @param {String|Buffer} str String to be converted * @param {String} to Encoding t

* Converts a Punycode string of ASCII-only symbols to a string of Unicode * symbols. * @memberOf punycode * @param {String} input The Punycode s

* Encode the asterisk parameter. Similar to `pretty`, but allows slashes. * * @param {string} * @return {string}

* Escape the capturing group by escaping special characters and meaning. * * @param {string} group * @return {string}