[alexandria-devel] multiple values in switch clauses

[Nikodemus Siivola]

On 22 November 2012 10:02, Marco Baringer <mb at bese.it> wrote:
>
> hi,
>
>   i'd like switch to, just like case and typecase do, allow multiple
>   values in the 'value' position of the condition:
>
>   (switch (foo)
>     ((bar baz) ...))
>
>   So the attached patch checks for the key form being a cons and, if so,
>   expands into a (member value :test test) instead of (test value)
>   form. Of course, this means that your key values can no longer be
>   forms, so this may break existing code. I don't have any code which
>   actually uses a function call in the value form of the clause (and a
>   quick grep over my locally installed lisp libs shows nobody else does
>   either), so i'm ok with the change, but i can understand if others
>   don't agree.

I think I like the idea of a multiple-value-switch, but I'm constantly
(well, every 6 months) to remove switch and rewrite it, so I'm a bit
hesitant to add more features to it...

Thinking about this. Feel free to kick me to remind me.

Cheers,

 -- Nikodemus