I'm sorry, but despite reading through the rest of the thread, it's
not clear to me why that is a problem.

icemaze, could you elaborate on what your use case is?  I think with
all of our powers combined, we can come up with something that fits
your needs :)

On Sep 10, 7:24 pm, Robert McIntyre <r...@mit.edu> wrote:
> That is very elegant but has the exact same problem in that the macro
> must be called on a literal vector of keywords.
>
> --Robert McIntyre
>
>
>
> On Fri, Sep 10, 2010 at 5:41 PM, Btsai <benny.t...@gmail.com> wrote:
> > This is probably not the prettiest way to do it, but I think it gets
> > the job done:
>
> > (defn make-sym [keyword]
> >  (->> keyword name (str "prefix-") symbol))
>
> > (defn make-fn [keyword]
> >  (let [n (gensym)]
> >   (list 'defn (make-sym keyword) [n] (list '= n keyword))))
>
> > (defmacro make-fns [keywords]
> >  `(do ~@(map make-fn keywords)))
>
> > user=> (make-fns [:a :b :c])
> > #'user/prefix-c
> > user=> (prefix-a :a)
> > true
> > user=> (prefix-a :x)
> > false
> > user=> (prefix-b :b)
> > true
> > user=> (prefix-b :x)
> > false
> > user=> (prefix-c :c)
> > true
> > user=> (prefix-c :x)
> > false
>
> > The credit belongs to Alan, and Mr. Stuart Halloway for his examples
> > from Ch. 7 of Programming Clojure.
>
> > On Sep 10, 2:37 pm, icemaze <icem...@gmail.com> wrote:
> >> Alan, thank you for your reply.
> >> Unfortunately your solution is very similar to mine and it suffers
> >> from the same problem (maybe I'm using it incorrectly, I don't know).
> >> If I write:
>
> >>   (doseq [x '(:a :b)]
> >>     (make-fn x))
>
> >> it defines a single function "synthetic-x". Is there a way to make
> >> this work? I tried everything but both eval and var-get don't work for
> >> local bindings.
>
> >> Thanks again.
>
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