Re: [9fans] plan 9 and lisp

[Bakul Shah <bakul@iitbombay.org>]

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Thanks!

Nick Nickolov's k comes with solutions to ~150  AoC-{2015..2022} puzzles. All run when you make k! As an example, here is aoc/21/25.k (Game of Sea Cucumbers, which Russ vlogged about): 

#!../../k
n:#'1*:\x:".>v"?0:"i/25"
(l;d;r;u):n/'n!'/:(!n)+/:3(|1 -1*)\!2 /left down right up
i:0;{i+:1;x:a[r]+x*~a:(1=x)>x l;(2*a d)+x*~a:(2=x)>x u}/,/x;i

[Of course, the real fun is in solving these puzzles but it helps to know what others do!]
Unfortunately no plan9 port as it relies on mmap.

https://codeberg.org/ngn/k
https://xpqz.github.io/kbook/Introduction.html
https://github.com/razetime/ngn-k-tutorial

It is also one of the fastest (~0.5 sec to generate and add a billion numbers on a Ryzen 2700).

> On Jan 19, 2023, at 9:07 AM, Skip Tavakkolian <skip.tavakkolian@gmail.com> wrote:
> 
> Regarding Ivy, rsc has some fantastic example code in the form of
> solutions to the Advent of Code 2021 puzzles:
> https://www.youtube.com/@rscgolang/videos
> 
> On Thu, Jan 19, 2023 at 7:48 AM Bakul Shah <bakul@iitbombay.org> wrote:
>> 
>> On Jan 19, 2023, at 7:57 AM, mkf9 <mkf9@riseup.net> wrote:
>>> 
>>> Lassi Kortela wrote:
>>>> Chibi-Scheme has run on Plan 9.
>>> and also S9, which Bakul Shah ported to Plan 9,
>>> https://github.com/bakul/s9fes.
>> 
>> Nils M Holm, the author of s9fes, did the original
>> port with some help from me. He didn't want to
>> maintain plan9 related changes which is why I am
>> maintaining it. Nils also has a book on it but
>> AFAIK it doesn't cover anything specific to plan9.
>> 
>> Speaking of little languages....
>> Nils also ported his klong array programming language
>> to plan9 & has a book on it! Slightly more verbose
>> than k (roughly k3 from kx.com)
>> 
>> Then there is https://github.com/ktye/i which supports
>> a dialect of k. Not sure which, probably k6 or k7. And
>> there is minimal help in the form of readme.txt but it
>> compiles & runs on 9front:
>> 
>> % git/clone https://github.com/ktye/i
>> % git/clone https://github.com/ktye/wg
>> % cd i
>> % go build '-buildvcs=false'
>> % ./k
>> ktye/k
>> !10
>> 0 1 2 3 4 5 6 7 8 9
>> +\!10
>> 0 1 3 6 10 15 21 28 36 45
>> d:`a`b`c!(1 2;3 4;5 6)
>> d
>> `a|1 2
>> `b|3 4
>> `c|5 6
>> +d
>> a b c
>> -----
>> 1 3 5
>> 2 4 6
>> \\
>> 
>> There is of course Rob Pike's ivy.

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