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Re: How to customize an option to a dynamic value (computed by lisp form


From: tomas
Subject: Re: How to customize an option to a dynamic value (computed by lisp form)
Date: Sat, 27 Aug 2016 13:50:58 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

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On Fri, Aug 26, 2016 at 01:59:00PM -0700, Drew Adams wrote:
> > > What does that mean?  A variable has a single, static, literal value at
> > > any time.
> 
> > https://en.wikipedia.org/wiki/Literal_(computer_programming)
> 
> Which says:
> 
> "In computer science, a literal is a _notation_ for _representing_
> a fixed value in source code."

I think you are talking past each other (i.e. both of you are right,
in a way :)

There are many "dynamic" options, at least in effect, as far as I
understand Jorge.

Of course, the option's *value* itself is expressed as a literal
and is static, but it is "something dynamic", like a function (think
hooks), an expression, a shell command to be called or some form
of "implicit expression" written in a custom mini-language (think
`c-offset-alist'.

The job of interpreting the option as dynamic lies with the "receiver"
of the option, i.e. with the function(s) *using* that option.
Typically wrapped in some function.

Does that help?

regards
- -- tomás
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