Re: Using the :set to make an alist

On Thursday, August 20th, 2026 at 7:17 AM, [email protected] <[email protected]> wrote:

> Heime <[email protected]> writes:
> 
> > On Thursday, August 20th, 2026 at 4:59 AM, [email protected] <[email protected]> wrote:
> >
> >> Heime <[email protected]> writes:
> >>
> >> >
> >> > Where should I call setopt exactly?
> >> >
> >>
> >> Not where, but when.  After your definitions (defun,
> >> defcustom) have been evaluated.  You can call ‘setopt’ in an
> >> elisp buffer, in the *scratch* buffer, with M-:, or in your
> >> Emacs initialization file.
> >
> > I hoped to declare the initial value in the defcustom definition.
> 
> There is an option for that described in the Emacs Lisp
> reference manual:
> 
>    (info "(elisp) Variable Definitions")

Yes there is, but can use use a let binding before the assignment like this

(defcustom galaxiakos-fpln
  (let (basepath (assoc-default 'GLXKS orellana-fpln))
     (setq galaxiakos-fpln
            `((GLXKS . ,basepath)
              (OMNIX . ,(concat basepath "/omniskon"))


 
> > But unsure how ta apply a binding for  (assoc-default 'GLXKS orellana-fpln)
> > to be used as a base directory.
> >
> 
> --
> The lyf so short, the craft so long to lerne.
> - Geoffrey Chaucer, The Parliament of Birds.
>