2009/8/16 Mark Polesky <[email protected]>:
> I didn't really ask anything in the previous post. What I
> meant to ask was: Are there any predicates here that I
> *shouldn't* add to the alist? Any objections to including
> all the "C++ predicates"? If no one objects, I'll make a
> patch that includes everything.
Might I suggest an alternative approach, which will work with any predicate?
Since the real issue is the vagueness of `unknown', why not tweak
`type-name' so it will instead return the name of the predicate if
there's no match in type-p-name-alist? This also has the added
benefit of producing useful information with user-defined predicates.
(define-public (type-name predicate)
(let ((entry (assoc predicate type-p-name-alist)))
(if (pair? entry) (cdr entry)
(symbol->string (procedure-name predicate)))))
Regards,
Neil
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