This function takes in a single element character vector and parses it into a robxp object.
robxp(x)
Arguments
x: either an atomic character vector containing a complete robots.txt`` file _or_ a length >1 character vector that will concatenated into a single string _or_ a connection` object that will be passed to [readLines()], the result of which will be concatenated into a single string and parsed and the connection will be closed.
Returns
a classed object holding an external pointer to parsed robots.txt data