On Fri, Dec 3, 2010 at 10:08 AM, Laurent PETIT <laurent.pe...@gmail.com> wrote:
> 2010/12/3 Laurent PETIT <laurent.pe...@gmail.com>
>> 2010/12/3 Anclj <anb...@gmail.com>
>>> I've got:
>>>
>>> user> (split (slurp "data") #",")
>>> ["0" "2" "1" "5" "2" "8" "3" "15" "4" "9"]
>>>
>>> And I would like:
>>> {:0 2, :1 5, :2 8, :3 15, :4 9}
>>>
>>> Any idea?
>>
>>
>> (let [s (split (slurp "data") #",")]
>> (zipmap (take-nth 2 s) (take-nth 2 (rest s))))
>
> Sorry, this respects the contract better:
>
> (let [s ["1" "2" "3" "4" "5" "6"]]
> (zipmap
> (map keyword (take-nth 2 s))
> (map #(Integer/valueOf %) (take-nth 2 (rest s)))))
Both of these traverse s twice. How about:
(let [s (split (slurp "data") #",")]
(into {}
(map (fn [[k v]] [(keyword (str k)) v])
(partition 2 s))))
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