I'm 95% sure I've done this before, but for some reason I am really stuck
right now. Given
(rearrange ([(a b c) 1]
[(d e) 2]))
I would like any kind of shape containing [a 1] [b 1] [c 1] [d 2] [e 2].
Any kind of nesting should be fine as long as the ids are matched up 1:1
with the numbers. I've tried variants of the following but always run in to
"incompatible ellipsis" problems:
(define-syntax-rule (rearrange [(id ...) body] ...)
'(([id body] ...)
...))
Can this be done with patterns, or do I need to use quasisyntax splicing
and list manipulation?
Larger context: I am making a table of proc-ids and proc-bodies. Some procs
share the same bodies, so I want to be able to write [(a b c) shared-body],
but eventually I need to get to [a shared-body] ...
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