Thanks a lot for your help, there's an awesome community here.
Sorry for the dumb questions, I'll try no to be too noisy on this list.
BTW, shouldn't it be better to create a separate mailing list for beginners?
Well, we would still need some experienced clojurers to answer the questions
though ...
Or maybe beginners like me should rather be encouraged to post their
questions on StackOverflow?
That would also give more visibility to the language (there are just about 2
or 3 questions a day about Clojure there).
What do you think? Where do you want to see my next stupid trivial question?
Damien
2011/3/10 Takahiro <fat...@googlemail.com>
> more concise:
>
> (defn enmap [args]
> (reduce #(hash-map %2 %1) (reverse args)))
>
> 2011/3/11 Takahiro <fat...@googlemail.com>:
> > Interesting. Here is my attempt.
> >
> > (defn enmap [args]
> > (let [[fs & res] (reverse args)]
> > (reduce (fn [v k] (hash-map k v)) fs res)))
> >
> >> (enmap [1 2 3 4 {5 6 7 8}])
> > => {1 {2 {3 {4 {5 6, 7 8}}}}}
> >
> >
> >>(let [[tail more] ((juxt last (comp reverse butlast)) [1 2 3 4 {5 6 7
> 8}])]
> >> (reduce #(hash-map %2 %1) tail more))
> > I still cannot understand what is going on in this code. juxt always
> > make my head crashed.
> >
> > Thanks.
> >
> > 2011/3/11 Damien Lepage <damienlep...@gmail.com>:
> >> Hi
> >>
> >> I wrote a function to transform a variable number of arguments into
> embedded
> >> maps.
> >> Here is what it does:
> >>> (enmap 1 2)
> >> {1 2}
> >>> (enmap 1 2 3)
> >> {1 {2 3}}
> >>> (enmap 1 2 3 4)
> >> {1 {2 {3 4}}}
> >>> (enmap 1 2 3 4 {5 6 7 8})
> >> {1 {2 {3 {4 {5 6, 7 8}}}}}
> >> Here is my implementation:
> >> (defn enmap [arg & args]
> >> (if-let [more (butlast args)]
> >> (let [k (last more), v (last args)]
> >> (if-let [even-more (butlast more)]
> >> (apply enmap arg (concat even-more (list (hash-map k v))))
> >> (enmap arg (hash-map k v))))
> >> (apply hash-map arg args)))
> >> Two things bother me:
> >>
> >> Is there a way to make this function less complicated? without recursion
> >> maybe?
> >> Is there something simpler than (concat even-more (list (hash-map k
> v)) to
> >> append an element at the end of a sequence?
> >>
> >> Thanks
> >> --
> >> Damien
> >>
> >> --
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> >
>
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--
Damien Lepage
http://damienlepage.com
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