> BTW, one other caveat (which applies to all of the examples so far): > doesDirectoryExist doesn't distinguish between directories and > symlinks to directories. Consequently, any directory-traversal > algorithm which uses doesDirectoryExist to identify directories will > behave incorrectly in the presence of symlinks. In the worst case, you > can get into an infinite loop.
symlinks aren't necessary to give an infinite loop: you can have upwards hard links as well (at least on *nix). You have to keep a list of inodes you've already visited (per filesystem, of course). --KW 8-) -- Keith Wansbrough <[EMAIL PROTECTED]> http://www.cl.cam.ac.uk/users/kw217/ University of Cambridge Computer Laboratory. _______________________________________________ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell
