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From: <tomas@tuxteam.de>
To: emacs-orgmode@gnu.org
Subject: Re: [patch] simplify-compact initial data extraction from plist
Date: Sat, 27 Jun 2020 18:49:41 +0200	[thread overview]
Message-ID: <20200627164941.GB5848@tuxteam.de> (raw)
In-Reply-To: <f55ce1a9-9c96-119f-ad8a-d28ba66e10c2@anche.no>

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On Sat, Jun 27, 2020 at 10:18:21AM -0500, Mario Frasca wrote:
> this is a result of some help I received a few days ago in the
> #emacs irc chat room on freenode.
> I was wondering why we were adding a semicolon in front of names,
> before creating symbols, and I understand this is because such
> symbols work as keys.

I assume you mean a "colon", like this `:'

Those :foo thingies have another nice property: they are self-evaluating,
like numbers. If you try, e.g. to eval foo, the evaluator tries to find
a variable named foo and the result is then that variable's value.

If you evaluate 'foo, the result is the symbol foo.

If you evaluate :foo, the result is :foo, like when you evaluate 1234,
where the result is simply 1234.

-- t

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  reply	other threads:[~2020-06-27 16:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-27 15:18 [patch] simplify-compact initial data extraction from plist Mario Frasca
2020-06-27 16:49 ` tomas [this message]
2020-07-12 18:03 ` Fwd: " Mario Frasca

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