Re: [Cbor] extensible enumerations, ignoring unknown values in CDDL

[Carsten Bormann <[e-mail]>]

On 2024-04-14, at 17:40, Rohan Mahy <[e-mail]> wrote:
> 
> Thanks Carsten,
> How about the following:
> 
> disposition = ( std_dispos // $$ext_dispos // unknown_dispos )

There is a little details here: The value choices are CDDL *types*, so you would be using a single slash for the choices and a single dollar for the socket.

(Underscore ➔ dash?)

I would also throw the std-dispos into $$ext_dispos, but that is a matter of style.

> std-dispos = &(

(The name “std” tells me that document 1 and document 2 below will not be standards.  If that is not what you mean, I’d call it something like “basic”.)

>     unspecified: 0,
>     render: 1,
>     reaction: 2,
>     profile: 3,
>     inline: 4,
>     icon: 5,
>     attachment: 6,
>     session: 7,
>     preview: 8
> )
> unknown_dispos = &( unknown: 8..255 ) ; Note: any ext_dispos take precedence
> 
> Then later document 1 could add
> 
> $$ext_dispos //= &(
>     background: 9,
>     mood: 10
> )
> 
> And later document 2 could add
> 
> $$ext_dispos //= &(
>     playlist: 11,
>     game: 10
> )

Grüße, Carsten