Well, I'm no Clojure macro expert yet, that's for sure, but from what I gather the auto-gensym mechanism has limitations to some extent, so that using regular gensyms in certain cases appears to be mandatory. So, I figured, something like good old WITH-GENSYMS could come in handy. I'm not certain my version is written correctly, and, above all, in a decent Clojure style. Still learning. Hope that answers your question.
Rock On Nov 20, 9:50 pm, Allen Rohner <[EMAIL PROTECTED]> wrote: > On Nov 20, 1:58 pm, Rock <[EMAIL PROTECTED]> wrote: > > > > > I've done my best to get a good enough grasp of how macros and syntax- > > quotes work in Clojure. While waiting for some more detailed > > documentation (thanks Meikel), I thought I'd work on something > > practical. Here's my attempt at writing a version of WITH-GENSYMS for > > Clojure, taken directly from Peter Seibel's Practical Common Lisp: > > > (defmacro with-gensyms [[& names] form] > > `(let ~(apply vector (loop [n names result []] > > (if (nil? n) > > result > > (recur (rest n) > > (conj result (first n) `(gensym)))))) > > ~form)) > > > Tried it out with macroexpand and it seems to work fine. Let me know > > what you all think. Perhaps something like with-gensyms could be > > included directly in the core lanuage. I've always thought that it > > should have been included in Common Lisp, given that it is employed so > > frequently. > > > Rock > > I'm new to macros as well. Can you please explain when this would be > useful? How is it different from the auto-gensym that the reader > provides ( foo#)? > > Allen --~--~---------~--~----~------------~-------~--~----~ 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 To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
