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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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  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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