On Dec 21, 2013, at 11:49 AM, Lee Spector wrote: > > When I step through a zipper made from a nested list via seq-zip, I get > extraneous nils after processing a nested (). > > Is this somehow expected behavior, or a bug, or am I misunderstanding > something fundamental? > > The problem seems to arise only when an nested empty list is present, not > other nested lists and not other nested empty sequences (see example at > bottom for this bit).
I take it back about it working correctly with other nested empty sequences. I realize now that my example of that had a nested empty vector, not a sequence. Trying to reproduce that example with a nested empty sequence just confused me, because it turns out that (seq ()) = (seq []) = nil, and I'm not sure what that means... But this is all really a distraction from the case I care about, which is lists that contain (among other things) nested empty lists. For example, '(() 0). Here it seems to me that zip/next's behavior is clearly wrong and I'm not sure why or what to do about it. Thanks, -Lee -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
