I *think* this is because when there are multiple matches, the most
specialized matches and 1 is less generic than _
On Mon, Oct 3, 2011 at 12.39 PM, "Sunil S Nandihalli" <
sunil.nandiha...@gmail.com> wrote:
>
> If I remove the line [{:a 1 :c _}] :a1 it returns :a-1 .. So, I guess it
means that the behavior is undefined if there are multiple matches.
> Sunil.
>
> On Mon, Oct 3, 2011 at 3:57 PM, Sunil S Nandihalli <
sunil.nandiha...@gmail.com> wrote:
>>
>> Hello everybody,
>> I was playing with core.match library and I notice the
following behavior
>>
>> let [x {:a 1 :b 2 :c 10 :d 30}]
>> (match [x]
>> [({:a _ :b _ :c _ :d _} :only [:a :b :c :d])] :a-1
>> [({:a _ :b 2} :only [:a :b])] :a0
>> [{:a 1 :c _}] :a1
>> [{:c 3 :d _ :e 4}] :a2
>> :else []))
>>
>> returns
>> :a1
>> I was hoping to get
>> :a-1
>>
>> Am I using it wrong? Have I misunderstood as to how match is supposed to
work? It looks like match assumes either that there is always a unique match
or it does not guarantee that it will the try matches in the order
specified. Can somebody help?
>>
>> Thanks,
>> Sunil.
>
>
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