From: "Jeffrey R.Carter" <spam.jrcarter.not@spam.acm.org.not>
Subject: Re: Java and Python have just discovered "record" type finally after 40 years.
Date: Mon, 15 May 2023 12:44:13 +0200 [thread overview]
Message-ID: <u3t2du$31frq$1@dont-email.me> (raw)
In-Reply-To: <87353ys8is.fsf@bsb.me.uk>
On 2023-05-15 03:11, Ben Bacarisse wrote:
>
> Do you still have it? Does is discuss association lists? I'd call them
> a normal part of LISP and it would be odd to force the associations to
> be lists rather than pairs. Does Siklóssy imply that an ASSOC list is a
> list of lists of length 2, or does he not discuss them until the very
> end?
The Function ASSOC is discussed in Chapter 9 as an auxiliary function used by
EVAL (Chapter 9 discusses the working of EVAL). It says
ASSOC finds the value of a variable in the ALIST. The ALIST is a list of
sublists of two SEXes each of the form (variable value-of-the-variable).
In a footnote he notes that the ALIST could be a list of dotted pairs, which are
defined in the next chapter.
I never did much with LISP after learning it, and never looked at any other
textbooks, so he might have an idiosyncratic approach. Seems rather OT for c.l.a.
--
Jeff Carter
"Mixtures of similar characters (letter O and
digit 0, letter I and digit 1, etc.) are unsafe,
as are long identifiers that differ only at the
end."
Elements of Programming Style
187
next prev parent reply other threads:[~2023-05-15 10:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-12 17:50 Java and Python have just discovered "record" type finally after 40 years Nasser M. Abbasi
2023-05-12 18:58 ` richardthiebaud
2023-05-12 21:33 ` Jeffrey R.Carter
2023-05-13 7:13 ` Niklas Holsti
2023-05-13 11:18 ` Luke A. Guest
2023-05-13 16:53 ` Niklas Holsti
2023-05-14 6:46 ` J-P. Rosen
2023-05-14 7:20 ` Nasser M. Abbasi
2023-05-14 9:49 ` Luke A. Guest
2023-05-14 9:43 ` Luke A. Guest
2023-05-14 9:45 ` Luke A. Guest
2023-05-14 10:29 ` Niklas Holsti
2023-05-14 10:37 ` Ben Bacarisse
2023-05-14 10:39 ` Jeffrey R.Carter
2023-05-14 15:10 ` J-P. Rosen
2023-05-14 15:14 ` Ben Bacarisse
2023-05-14 16:56 ` Jeffrey R.Carter
2023-05-15 1:11 ` Ben Bacarisse
2023-05-15 10:44 ` Jeffrey R.Carter [this message]
2023-05-17 0:24 ` Ben Bacarisse
2023-05-14 12:46 ` Bill Findlay
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