David Kastrup wrote
>> So we'd need:
>>
>> markup-or-stencil-or-procedure?
>
> markup-or-stencil-or-procedure-or-false? ...
>
> We don't do this elsewhere.
This particular case raises a general question. Instead of having to define
an "x-or-y?" type predicate for each combination that might be needed,
wouldn't it be better if there was a general way to combine type predicates
as needed within any given function? Something like:
#(define-music-function (parser location arg)
(or (boolean?) (number?) (procedure?))
...)
-Paul
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