From: tomas@tuxteam.de
To: Heime <heimeborgia@protonmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Calling a function with undefined symbol
Date: Mon, 31 Oct 2022 10:07:09 +0100 [thread overview]
Message-ID: <Y1+QPe8dttVOci69@tuxteam.de> (raw)
In-Reply-To: <PnCdVt1Ag4FTqCRqp5zWYJ0pBsarv24b10GohZcTY0xQR3LgFk6gS2204qo4404P68dZa0G_P3LGgVIdB4jTvjpc4uBkGglHa3-3e10mObc=@protonmail.com>
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On Mon, Oct 31, 2022 at 08:57:09AM +0000, Heime wrote:
> ------- Original Message -------
> On Monday, October 31st, 2022 at 8:42 AM, <tomas@tuxteam.de> wrote:
[...]
> Then, how is it that (symbol-value 'seqr) returns 5? There seems to be
> a symbol and symbol-value returns 5.
Please: read the docs yourself. Others can't do that for you.
Specifically "12.7 Accessing Variable Values" in the Emacs Lisp
manual.
That a "symbol" has a "value" is just a shorthand notation for
"a symbol" has "a value" associated to it via a variable. It can
also have other things associated to it (a function, for example,
also a property list). But it needn't, it can just exist on its
own.
> Yes, I have got really confused about what symbols are exactly. Even
> after reading several times. I have never seen anybody make a symbol,
> only variables. So, what is a symbol?
'foo (spedifically this coaxes the reader into creating one. The
function behind that is intern. See there.
Cheers
--
t
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next prev parent reply other threads:[~2022-10-31 9:07 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-31 8:15 Calling a function with undefined symbol Heime
2022-10-31 8:32 ` Jean Abou Samra
2022-10-31 8:42 ` tomas
2022-10-31 8:57 ` Heime
2022-10-31 9:07 ` tomas [this message]
2022-10-31 9:24 ` Jean Abou Samra
2022-10-31 9:43 ` Heime
2022-10-31 9:58 ` Jean Abou Samra
2022-10-31 10:57 ` Heime
2022-10-31 17:00 ` [External] : " Drew Adams
2022-10-31 17:10 ` Emanuel Berg
2022-11-01 4:11 ` Drew Adams
2022-11-01 5:24 ` tomas
2022-11-01 15:58 ` Drew Adams
2022-11-01 16:13 ` tomas
2022-11-01 19:22 ` Drew Adams
2022-10-31 12:29 ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-10-31 15:37 ` Emanuel Berg
2022-11-02 12:14 ` Michael Heerdegen
2022-11-02 14:25 ` Sam Steingold
2022-11-02 16:40 ` Michael Heerdegen
2022-11-02 17:28 ` Emanuel Berg
2022-11-02 23:04 ` Emanuel Berg
2022-11-03 11:09 ` Michael Heerdegen
2022-11-03 12:15 ` Emanuel Berg
2022-11-04 12:16 ` Michael Heerdegen
2022-11-05 14:32 ` Emanuel Berg
2022-11-05 23:22 ` Michael Heerdegen
2022-11-06 20:17 ` Emanuel Berg
2022-11-07 16:03 ` Michael Heerdegen
2022-11-07 16:50 ` [External] : " Drew Adams
2022-11-07 16:52 ` Emanuel Berg
2022-11-08 15:52 ` Michael Heerdegen
2022-11-08 19:15 ` tomas
2022-11-08 19:57 ` Michael Heerdegen
2022-11-08 20:47 ` tomas
2022-11-08 21:35 ` Sam Steingold
2022-11-08 23:53 ` Michael Heerdegen
2022-11-09 15:32 ` Sam Steingold
2022-11-09 15:59 ` Michael Heerdegen
2022-11-16 19:07 ` Emanuel Berg
2022-11-16 21:40 ` [External] : " Drew Adams
2022-11-16 21:55 ` Emanuel Berg
2022-11-04 14:33 ` Michael Heerdegen
2022-11-05 12:57 ` Emanuel Berg
2022-10-31 11:34 ` Emanuel Berg
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