function brackets(pattern, options) {
  debug('initializing from <%s>', __filename);
  var res = brackets.create(pattern, options);
  return res.output;
}
function brackets(pattern, options) {
  debug('initializing from <%s>', __filename);
  var res = brackets.create(pattern, options);
  return res.output;
}
function brackets ( pattern , options ) { debug ( 'initializing from <%s>' , __filename ) ; var res = brackets . create ( pattern , options ) ; return res . output ; }
Parses the given POSIX character class `pattern` and returns a
string that can be used for creating regular expressions for matching.

@param {String} `pattern`
@param {Object} `options`
@return {Object}
@api public
Parses the given POSIX character class pattern and returns a string that can be used for creating regular expressions for matching .