On Mon, Apr 11, 2011 at 4:12 AM, James Reeves <jree...@weavejester.com> wrote: > On 11 April 2011 08:31, Ken Wesson <kwess...@gmail.com> wrote: >>> So your not-int-in-range? function is a compound function, made up of >>> four simple functions. >> >> So? This whole discussion arose because some of them have >> preconditions, like at-least 1 not making sense for blank or >> non-integer input. > > Yes, but remember that I said I was looking for non-compound > solutions. In my view, simple functions are more idiomatic Clojure.
Mine were built up starting from very simple functions. >> Is there anything that indicates they're more secure? > > I'd argue that encouraging people to think of what to allow is better > than encouraging people to think of what to deny. What is your basis for this? >> If people are having a problem with the existing way, it's useful to >> suggest alternative ways of looking at the problem. Here, for >> instance, there was some difficulty regarding preconditions, and >> generating the right error message when more than one thing failed >> (e.g. it wasn't in the range 1 to 120 because it wasn't an integer at >> all). >> >> I just thought it might be helpful to look at things from another >> direction. Now we can all look at things from *both* directions. > > Sure, and I'm not saying there aren't clear advantages to having > inverted validations. Then why are you arguing as if you think I'm wrong about something? > It's because your idea has merit that I'm taking the opposite side and > arguing against it. If it turned out that I came to believe that the > advantages to this approach outweighed any disadvantages, I'd > whole-heartedly adopt the idea. For that reason, my current approach > requires a vigorous defence. Ah. Devil's advocacy, then, or something like it? -- 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
