Re: (< @X 18) doesn't behave as expected with pilog

Untested, but what about using range/3 ? http://software-lab.de/doc/refR.html#range/3 On Sat, Nov 12, 2016 at 9:59 AM, CILz wrote: > Hello, > > Let's say that I have those two facts in a pilog database: > > (be age (Paul 18)) > (be age (Vincent 17)) > > I'm looking for the

Re: First post

Hello Eric! Thanks for the introduction. Welcome! Looking forward to your questions! On Sat, Nov 12, 2016 at 9:45 AM, CILz wrote: > Dear list, > > I take the opportunity of this first post to introduce myself as well as the > reasons for which I come here. > > I am not a

Re: First post

Hi Eric, > Any way, I have it up an running on my linux box ... so expect me to ask > very basic questions soon :) Welcome! Please let us know how we can help. As beneroth wrote in another mail today, it might be also a good idea to visit the #picolisp IRC channel at freenode.net :) ♪♫ Alex --

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Re: (< @X 18) doesn't behave as expected with pilog

Hi Alexander, Thanks for this answer. It works nicely. I will take my time to understand it thoroughly. Best. Le 12/11/2016 à 16:27, Alexander Burger a écrit : Hi Eric, (be underage (@X) (age @X @Y) (< @Y 18)) '<' is a Lisp function and not a Pilog rule. To embed a Lisp expression

First post

Dear list, I take the opportunity of this first post to introduce myself as well as the reasons for which I come here. I am not a computer scientist nor a professional web developper but a kind of "power user" who often gets its hands dirty to build some applications as close as possible to

Re: (< @X 18) doesn't behave as expected with pilog

Hi Eric, > (be underage (@X) > (age @X @Y) > (< @Y 18)) '<' is a Lisp function and not a Pilog rule. To embed a Lisp expression in Pilog, you must use the '^' operator. It causes the rest of the expression to be taken as Lisp, and inside the Lisp code you can in turn access Pilog-bindings

(< @X 18) doesn't behave as expected with pilog

Hello, Let's say that I have those two facts in a pilog database: (be age (Paul 18)) (be age (Vincent 17)) I'm looking for the guy under 18 with this rule: (be underage (@X) (age @X @Y) (< @Y 18)) If I ask (? (underage @X)) the result here is -> NIL where I expect to get @X=Vincent.

Re: (< @X 18) doesn't behave as expected with pilog

Hi Joe, > Untested, but what about using range/3 ? > http://software-lab.de/doc/refR.html#range/3 Thanks! However, range/3 is probably not useful here. It is a rather specialized predicate for range checks in database queries. ♪♫ Alex -- UNSUBSCRIBE:

Re: (< @X 18) doesn't behave as expected with pilog

Thanks for this Joe. However I will need to investigate as I don't know Picolisp enough yet. My purpose is first to translate Prolog queries to Pilog in a Prologish/Pilogish way. Le 12/11/2016 à 16:23, Joe Bogner a écrit : Untested, but what about using range/3 ?

Re: The behaviour of arg

In this case I simply use (arg 1), I just wanted to check if perhaps (arg) defaulted to (arg 1) if no prior next had been called. On Sat, Nov 12, 2016 at 7:45 AM, Alexander Burger wrote: > Hi Henrik, Andreas, > >> I guess this is the unforgiving punishment for calling (arg)