A Scala port of miniKanren
Based on https://github.com/michel-slm/minikanren-scala
Please check the documentation in docs/presentation.rst for details.
You can also check the (basic) tutorial of miniKanren with this Scala syntax, using the following command (in the root project's sbt shell):
> miniKanrenExamplesJVM/tut
snd check the output markdown file in examples/jvm/target/scala-2.12/tut
Using REPL with SBT:
> miniKanrenExamplesJVM/console
...
scala> time(run(1, x)(solve_puzzle(x)))
res0: (Long, Any) = (10044,List(List(9567, 1085, 10652)))
Interpretation of the result: took 10044
milliseconds to solve the problem, a result is
SEND 9567
+MORE +1085
----- -----
MONEY 10652
Another example (palindromes with six-digit numbers that are the product of two three-digit numbers), this time with maprun
as it is much faster:
time(maprun(1, x)(palprod_o(x)))
100001
101101
res1: (Long, Any) = (40837,List((1,(1,(1,(0,(0,(1,(1,(1,(1,(1,(0,(0,(0,(1,List()))))))))))))))))