Re: Customizing an association list with defcustom to allow user modifications

On Friday, August 7th, 2026 at 12:42 AM, Heime <[email protected]> wrote:

> 
> I am comfortable using defcustom to define variables that hold string
> or symbol values. However, I find it challenging to understand how to
> use defcustom for a variable that is an alist (association list), where
> users can modify the entries.
> 
> For example, suppose I define an alist variable like this:
> 
> (setq mylist (list (cons 'name "Pandu") (cons 'activation 'dual)))
> 
> Now, I want to allow users to change the values of each entry in mylist
> through customization. How can I set this up so that users can easily
> modify these entries in the customization interface?  What would users
> have to do?

Have seen customize-dirlocals which uses a widget.  I could take an 
alist whose cdr type of each element can changes according to car.