I'm not sure I'm getting your data example (seems like there are some characters missing or out of place) but this might be what you're looking for:
user=> (def stuff [['(+ 1 (- 5 2)) nil] ['(- 5 2) nil] [3 true] [4 true]]) #'user/stuff user=> (vec (for [m stuff] (vec (butlast m)))) [[(+ 1 (- 5 2))] [(- 5 2)] [3] [4]] On Feb 11, 8:39 pm, jweiss <jeffrey.m.we...@gmail.com> wrote: > I've been working on a tracing library, that works much like > clojure.contrib.trace (based on it, actually). One sticky problem > I've found is, hierarchical logs are really crappy to try to stream to > a file. You can't just keep writing to the end of the file - new data > needs to be inserted before existing end-tags. So what I'm doing is > storing the data as a list, until I know the data is complete, and > then i turn it back into a tree to write the file. > > However I can't think of a simple way to do it, even though it seems > like a simple operation. > > I want to turn this list of pairs (first item is the fn call or return > value, the second is a truthy value marking whether it's a call or > return) > > '[[(+ 1 (- 5 2) nil] > [(- 5 2) nil] > [3 true] > [4 true]] > > I want to turn that into > [(+ 1 (- 5 2)) > [(- 5 2) > 3] > 4] > > Is there a simple way to do this? -- 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
