On Sat, Jul 6, 2013 at 3:16 PM, Adam Saleh wrote:
>
> => (run 1 [q]
> #=> (membero :a q))
> ((:a . _0))
>
> Unfortunately when I try to do something \w it, it throws exception
>
> => (first *1)
> (1 . _0)
> => (first *1)
> IllegalArgumentException Don't know how to create ISeq from:
> clojure.core.logic.LCons clojure.lang.RT.seqFrom (RT.java:505)
>
> I guess I need to somehow convert the "logic-based" list to
> "clojure-based", how do I do it?
>
A cons cell doesn't really convert to a clojure list, especially when the
last item is fresh. I guess the real question is: what result do you want
from Clojure?
If you just want to access the values you have now, you can get them with
lfirst/lnext (in clojure.core.logic.protocols) but maybe the better
question to ask is: what clojure result do you actually want?
If you want all the possible proper lists, then I'd suggest constraining it
to be such:
(defn listo [l]
(conde [(emptyo l)]
[(fresh [a d]
(conso a d l)
(listo d))]))
In my experience, calling core.logic from real application code works best
when you write programs that produce fully realized results without any
fresh values
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