How to Implement and register an operation in NARS?

[stevenc...@gmail.com]

Hi all 

how to Implement and register an operation in NARS?

I want register an sorting algorithm as an operation in NARS which is implemented by other System and the operation can be call in narsese.

Take the example below:

<(*,1,3,5,4) --> ^sort>.

And then it will call the implementation of sort and it will echo "<(*, 1,3, 4,5)--> is_sorted>. "

Thanks very much.

[Patrick Hammer]

Hi!

Sorry for the late reply.

This depends on the implementation.

OpenNARS: create a class which extends Operator and implements the execute method, there the sorting needs to be done and a feedback event as you suggested with the sorted version of the product can be invoked. Register the op with nar.addOperation(new Sort("^sort"));

ONA: if Python wrapper is used: NAR.AddInput("*setopname 1 ^sort").

Now when NAR.AddInput is called, it will return a dict, with key "executions". Check for a call of ^sort and the arguments, if present do the sorting in Python and add the feedback event with another NAR.AddInput call such as NAR.AddInput("<({SELF * (1 * 2)) --> ^sort>.") Little detail: n-ary products need to be 2-ary nested products instead, e.g. (1 * (2 * 3)).

C/C++:

NAR_AddOperation(Narsese_AtomicTerm("^sort"), SortFunction);

whereby SortFunction is function pointer to a function with void return value and Term (the args product) as input.

Best regards,

Patrick

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[stevenc...@gmail.com]

Got it.

Thanks Very much.