Parse response from FTP LIST command (syntax variations)

Question

The FTP LIST command displays a listing of all the files and directories in the current working directory. The problem is, it returns several different formats depending on

Answer 1

^(?[\-ld])(?([\-r][\-w][\-xs]){3})\s+(?\d+)\s+(?\w+)\s+(?\w+)\s+(?\d+)\s+(?((?\w{3})\s+(?\d{1,2})\s+(?\d{1,2}):(?\d{2}))|((?\w{3})\s+(?\d{1,2})\s+(?\d{4})))\s+(?.+)$

Changed Chris Haas version a tiny little bit. Changed so that the day grouping can consist of a single number as well. \d{2} -> \d{1,2}

Thanks for original version.