From: Helmut Waitzmann <nn.throttle@xoxy.net>
To: info-gnus-english@gnu.org
Subject: Re: own webbased newsgroup types
Date: Thu, 05 Feb 2015 02:28:54 +0100 [thread overview]
Message-ID: <878ugdywls.fsf@helmutwaitzmann.news.arcor.de> (raw)
In-Reply-To: <87r3u5uxz5.fsf@jupiter.lan>
Stefan Huchler <stefan.huchler@mail.de> writes:
> (let ((last (car (last articles)))
> (did nil)
>
>
>I have no idea what this "did" thing is supposed to be
You might read the documentation for the special form "let". To do
that, type C-h f let RET
Let me comment that documentation:
The first parameter of "let" is the VARLIST, a list of variables. Each
variable in that VARLIST is either a symbol: SYMBOL, which is bound to
nil, or it is a list of 2 elements: (SYMBOL VALUEFORM), which binds the
SYMBOL to the value of VALUEFORM.
In your example:
> (let ((last (car (last articles)))
> (did nil)
the first element of the VARLIST is a list of two elements:
(last (car (last articles)))
= (SYMBOL VALUEFORM)
which tells "let" to bind the SYMBOL "last" to the value of the
VALUEFORM (car (last articles)),
and the second element of the VARLIST is a list of two elements, as well:
(did nil)
= (SYMBOL VALUEFORM)
which tells "let" to bind the SYMBOL "did" to the value of the
VALUEFORM nil.
prev parent reply other threads:[~2015-02-05 1:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-04 22:13 Stefan Huchler
2015-02-05 1:28 ` Helmut Waitzmann [this message]
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