rotten news relay - comp.lang.lisp - (lambda (x) (list (car x) (length x))) using Cut or Cute?

Subject: (lambda (x) (list (car x) (length x))) using Cut or Cute?
From: HenHanna
Newsgroups: comp.lang.scheme, comp.lang.lisp
Organization: A noiseless patient Spider
Date: Thu, 11 Jul 2024 09:30 UTC
References: 1

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From: HenHanna@devnull.tb (HenHanna)
Newsgroups: comp.lang.scheme,comp.lang.lisp
Subject: (lambda (x) (list (car x) (length x))) using Cut or Cute?
Date: Thu, 11 Jul 2024 02:30:37 -0700
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There's no way to write

(lambda (x) (list (car x) (length x)))

using Cut or Cute ???

Subject: Re: (lambda (x) (list (car x) (length x))) using Cut or Cute?
From: Kaz Kylheku
Newsgroups: comp.lang.scheme, comp.lang.lisp
Organization: A noiseless patient Spider
Date: Thu, 11 Jul 2024 10:13 UTC
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From: 643-408-1753@kylheku.com (Kaz Kylheku)
Newsgroups: comp.lang.scheme,comp.lang.lisp
Subject: Re: (lambda (x) (list (car x) (length x))) using Cut or Cute?
Date: Thu, 11 Jul 2024 10:13:50 -0000 (UTC)
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On 2024-07-11, HenHanna <HenHanna@devnull.tb> wrote:
>
> There's no way to write
>
> (lambda (x) (list (car x) (length x)))
>
> using Cut or Cute ???

That's more of a job for a jig called juxt:

This is the TXR Lisp interactive listener of TXR 294.
Quit with :quit or Ctrl-D on an empty line. Ctrl-X ? for cheatsheet.
TXR's car insurance now offers cdr coverage for bumper-to-bumper
protection.
1> [juxt car length]
#<intrinsic fun: 0 param + variadic>
2> [*1 '(1 2 3)]
(1 3)
3> [*1 '(1 2 3 4 5 6)]
(1 6)

juxt takes functions as its arguments and returns a function.
When that function is invoked, it passes its argument to each
of the child functions, and returns a list of the values.

--
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
Mastodon: @Kazinator@mstdn.ca

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comp / comp.lang.lisp / (lambda (x) (list (car x) (length x))) using Cut or Cute?

Subject	Author
(lambda (x) (list (car x) (length x))) using Cut or Cute?	HenHanna
Re: (lambda (x) (list (car x) (length x))) using Cut or Cute?	Kaz Kylheku