On Aug 20, 2009, at 2:29 AM, Meikel Brandmeyer wrote: > Hi, > > Disclaimer: personal opinion following...
I think that's all we have when it comes to matters of style :-) > I'm sorry. I don't get the elegance of point-free style. > > In mathematics f denotes the function, while f(x) denotes the value f > takes over x. This is actually a nice and easy to understand notation. > But why do I have to clutter my clojure code with `partial`s and > `comp`s because of that? In Haskell, where `partial` is automatic and > `comp` is a dot, this is maybe elegant. But not here. > > I don't know, whether this example is contorted on purpose, but I > really had to very slowly step through it to see what's going on. > >> (map (comp (partial map (comp #(str2/drop % 2) >> #(str2/take % 5))) >> #(str2/split % #"\t")) >> (split a-string #"[\n\r]")) > > This is almost self-explaining: > > (map (fn [part-numbers] > (map #(-> % (str2/take 5) (str2/drop 2)) > (str2/split part-numbers #"\t"))) > (str2/split a-string #"[\n\r]")) I agree wholeheartedly with Meikel. -> is very straightforward for me to understand. Outside of matters of style, changing the expected arguments of -> would make at least two things impossible: - use of variadic fns, e.g. (-> data (my-fn arg1 arg2 ... argN) keys last) - use of host platform fns (this is incredibly useful with ByteBuffers, etc) (-> bytebuffer (.put other-data) .flip (.position 23) (.limit 89)) Back to matters of style, and agreeing with Jon upthread, doesn't #() provide a superset of partial's functionality, with more 'literal', easier-to-read code? Cheers, - Chas --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
