Hi, On Mon, Jul 23, 2012 at 5:38 PM, Joe Hughes <jwhughe...@gmail.com> wrote:
> All, > > I figured it out. Still trying to get Functional Programming ideas in > my head. > The macro defspel is not functional programming, it's dark Lisp's macro Voodoo. I would not advise starting Clojure with macros, you should start with something with a smoother learning curve like: http://www.4clojure.com/. That said, I red "The Land Of Lisp" before learning Clojure, and it's a great book. Transposing Common LISP to Clojure may not be a good idea though. My advice would be: If you want to learn Common Lisp before Clojure it's a great idea (you will enjoy Clojure much more :), but take the time to learn the language. If you want to directly learn Clojure, then take a good book (Clojure Programming - 2012, Practial Clojure - 2010 or Joy Of Clojure - 2011) + some practical work like 4clojure.com. Cheers, Denis > > Regards, > Joe > > > On Friday, June 29, 2012 11:11:56 AM UTC-5, Joe Hughes wrote: >> >> All, >> >> I've been playing with Clojure and found this website, >> http://www.lisperati.**com/clojure-spels/casting.html<http://www.lisperati.com/clojure-spels/casting.html> >> **. Typed the code into Clojure 1.4.0 and got the issue below. Here is >> the code in question. >> >> >> (defmacro defspel [& rest] `(defmacro ~@rest)) >> >> >> (defspel game-action [command subj obj place & args] >> `(defspel ~command [subject# object#] >> `(spel-print (cond (and (= location '~'~place) >> (= '~subject# '~'~subj) >> (= '~object# '~'~obj) >> (have? '~'~subj)) >> ~@'~args >> :else '(i cannot ~'~command like that -))))) >> >> (game-action weld chain bucket attic >> (cond (and (have? 'bucket) (def chain-welded true)) >> '(the chain is now securely welded to the bucket -) >> :else '(you do not have a bucket -))) >> >> >> When I do >> >> >> (weld chain bucket) >> >> >> instead of getting >> >> >> (you do not have a chain -) >> >> >> I get >> >> >> (i cannot weld like that -) >> >> >> From what I'm reading (defspel game-action..., something isn't correct >> and the result is the :else instead of the if. This was written using >> Clojure 1.1, so if anyone has a solution about why this works in 1.1 and >> not 1.4 I would like to hear it. >> >> >> TIA, >> Joe >> > -- > 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 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
