[CM] Multiple catch syntax

Woody Douglass wdouglass at carnegierobotics.com
Tue Oct 19 07:57:37 PDT 2021

Ok, well in that case i guess i can do

(let ((handler (lambda (type args) #f)))
    (catch 'error-one
        (catch 'error-two
            (lambda () #t)

maybe i'll write a macro. `(catch-multiple catchlist thunk handler)`


On Tue, 2021-10-19 at 06:57 -0700, bil at ccrma.Stanford.EDU wrote:
> catch uses eq? to match the tag to the error type --
> I can't find any mention of this in s7.html -- will
> make it explicit.  The expected usage for the
> (or 'a 'b) case would be to have two catches.
> Kinda ugly, now that I think about it. I borrowed
> catch from Guile, and now I don't remember if they
> accepted expressions for the tag.  I don't like
> the r7rs "guard" or whatever they call it -- hmmm.

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