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bug#32841: assoc-set fails with dot notation association list
From: |
Tomas Volf |
Subject: |
bug#32841: assoc-set fails with dot notation association list |
Date: |
Mon, 21 Oct 2024 22:26:48 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
".%c2.п." via "Bug reports for GUILE, GNU's Ubiquitous
Extension Language" <bug-guile@gnu.org> writes:
> The thread and all replies were in 2018. Six years later, in 2024, Anyone
> opening the up-to-date online manual still sees the old bad code there! The
> manual is not adjusted even though previous emails had pointed the cause and
> solution out!
> Today, the page has a valid link of
> https://www.gnu.org/software/guile/manual/html_node/Alist-Example.html and still
> contains
>
> 6.6.20.6 Alist Example
>
> Here is a longer example of how alists may be used in practice.
> (define capitals '(("New York" . "Albany") ("Oregon" .
> "Salem") ("Florida" . "Miami"))) ;; What's the capital of
> Oregon? (assoc "Oregon" capitals) ⇓ ("Oregon" . "Salem") (assoc-ref
> capitals "Oregon") ⇓ "Salem" ;; We left out South Dakota. (set! capitals
> (assoc-set! capitals "South Dakota" "Pierre")) capitals ⇓ (("South Dakota"
> . "Pierre") ("New York" . "Albany") ("Oregon" . "Salem")
> ("Florida" . "Miami")) ;; And we got Florida wrong. (set! capitals
> (assoc-set! capitals "Florida" "Tallahassee")) capitals ⇓ (("South Dakota" .
> "Pierre") ("New York" . "Albany") ("Oregon" . "Salem") ("Florida"
> . "Tallahassee")) ;; After Oregon secedes, we can remove it. (set! capitals
> (assoc-remove! capitals "Oregon")) capitals ⇓ (("South Dakota" .
> "Pierre") ("New York" . "Albany") ("Florida" . "Tallahassee"))
>
>
>
>
>
>
> 深圳大学
>
> 陈
> 有骏
Your message is really hard to read, I cannot make heads or tails of the
formatting. Could you please resend it formatted in a normal way? In
particular, wrapping your text to 72 characters and properly formatting
the code example will improve the readability a lot.
Have a nice day,
Tomas Volf
--
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.