Re: How to save custom variable programmatically?

[Marcin Borkowski <mbork@mbork.pl>]

On 2020-11-10, at 22:46, Jean Louis <bugs@gnu.support> wrote:

> * Marcin Borkowski <mbork@mbork.pl> [2020-11-10 23:42]:
>> 
>> On 2020-11-10, at 20:19, Jean Louis <bugs@gnu.support> wrote:
>> 
>> > * Michael Heerdegen <michael_heerdegen@web.de> [2020-11-10 17:36]:
>> >> Jean Louis <bugs@gnu.support> writes:
>> >> 
>> >> > If there is anyway of storing data from Emacs that is standard I do
>> >> > not know about it. Welcoming tips.
>> >> 
>> >> The eieio-persistent class is made for that purpose.
>> >> 
>> >> You make your data/database/whatever an object of a class you define as
>> >> you like, and make that class inherit from eieio-persistent.  Then your
>> >> data is savable out of the box.
>> >> 
>> >>   (info "(eieio) eieio-persistent")
>> >> 
>> >> Do you need an example?
>> >
>> > Thank you. If you have ready simplest example it may be useful for
>> > review.
>> >
>> > My strategy is to minimize number of packages used as dependencies so
>> > I try to use what is built in or to re-use what is inside of Emacs.
>> 
>> You might get inspired by an old post of mine here:
>> http://mbork.pl/2018-09-10_Persisting_Emacs_variables
>
> Nice post and Wiki. Reference taken. I can read the flow somehow. You
> watching in the file by trying to read ^(setq if variable exists, if I
> get it well. It relies on personal use case and common usage of
> setq. What if variable is b that is set with:
>
> (set (quote b) 1)
>
> or
>
> (setq a 1 b 2)
>
> or
>
> (setq a 1
>       b 2
>       c 3)
>
> or
>
> (setf b 1)

Well, it won't work;-).  The idea is, though, that this line is put in
init.el automatically and not tampered manually.

Best,

-- 
Marcin Borkowski
http://mbork.pl