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Re: url-retrieve fails on most HTTPS sites
From: |
Emanuel Berg |
Subject: |
Re: url-retrieve fails on most HTTPS sites |
Date: |
Tue, 29 Sep 2020 05:24:35 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) |
Stefan Monnier wrote:
>>>>> (switch-to-buffer (url-retrieve
>>>>> "https://wikipedia.org/" '(lambda (&rest
>>>>> ignore))))
>>>>
>>>> (BTW, don't quote lambdas! was the rule one
>>>> decade ago...)
>>>
>>> From wrting too much Common Lisp, I'm used to
>>> writing #'(lambda ...), but I'm not qualified to
>>> judge elisp.
>>
>> Comrade S Monnier always said don't quote lambdas.
>> and... I believed him.
>
> ' and #' are two different beasts. If you want to
> wrap your lambdas inside #' be my guest.
As is evident from the level 5 cite above, the lambda
was _quoted_, I don't know how sharp quote entered
the discussion. Oh, I do know that, I just didn't
notice...
OK, with a quote, you make it a list, not a function.
And with a #', you make it a function.
But... isn't it already a function? As in "anonymous
function"?
In the Elisp manual [1] it says:
The read syntax #' is a short-hand for using
`function'. The following forms are all equivalent:
(lambda (x) (* x x))
(function (lambda (x) (* x x)))
#'(lambda (x) (* x x))
So why use it?
[1] (info "(elisp) Anonymous Functions")
http://www.gnu.org/software/emacs/manual/html_node/elisp/Anonymous-Functions.html
--
underground experts united
http://user.it.uu.se/~embe8573
https://dataswamp.org/~incal
- url-retrieve fails on most HTTPS sites, Nicolas Graner, 2020/09/28
- Re: url-retrieve fails on most HTTPS sites, Emanuel Berg, 2020/09/28
- Re: url-retrieve fails on most HTTPS sites, 2QdxY4RzWzUUiLuE, 2020/09/28
- Re: url-retrieve fails on most HTTPS sites, Emanuel Berg, 2020/09/28
- Re: url-retrieve fails on most HTTPS sites, Stefan Monnier, 2020/09/28
- Re: url-retrieve fails on most HTTPS sites,
Emanuel Berg <=
- Re: url-retrieve fails on most HTTPS sites, tomas, 2020/09/29
- Re: url-retrieve fails on most HTTPS sites, Emanuel Berg, 2020/09/29
- Re: url-retrieve fails on most HTTPS sites, tomas, 2020/09/29
- Re: url-retrieve fails on most HTTPS sites, Emanuel Berg, 2020/09/29
- Sharp--quote [was: url-retrieve fails on most HTTPS sites], tomas, 2020/09/29
- Re: Sharp--quote [was: url-retrieve fails on most HTTPS sites], Stefan Monnier, 2020/09/29
- Re: Sharp--quote [was: url-retrieve fails on most HTTPS sites], tomas, 2020/09/29
- Re: Sharp--quote [was: url-retrieve fails on most HTTPS sites], Emanuel Berg, 2020/09/29
- Re: Sharp--quote [was: url-retrieve fails on most HTTPS sites], Emanuel Berg, 2020/09/29
- Re: Sharp--quote [was: url-retrieve fails on most HTTPS sites], Emanuel Berg, 2020/09/29