Hi, When I stumbled upon the question "Clojure coalesce function" at StackOverflow today, I saw a place for "reverted" maybe-m and sequence-m monads. It seemed to have been easy, but turned out not. I can't figure out how to use monads for the task at hand. Could someone point me into a right direction? Here's what I've figured out so far.
(with-monad identity-m (defn coalesce [& xs] (m-until #(not (nil? (first %))) rest xs))) It doesn't return the first non-nil value, but merely starts with one and moves on if there're more forms in xs. Somehow I feel it's the usecase for monads, but without help chances are I won't find the solution. [1] http://stackoverflow.com/questions/4086889/clojure-coalesce-function Jacek -- Jacek Laskowski Notatnik Projektanta Java EE - http://jaceklaskowski.pl -- 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