- nonempty-symbol-keyed-alist? objprocedure
Returns #t when obj is a nonempty list of pairs, each of which has a symbol as car.
The idea behind this predicates is that it helps to do "The Right Thing" when you call an XML-RPC procedure. You can pass in regular lists or alists, and it will try to make the right decision whether to convert your lists to structs or arrays.
The predicate returns true for nonempty lists only because it's much more likely that you will have empty regular lists than empty alists. However, it's important to be aware of this because you might end up with an empty alist. For absolute safety, remove this predicate from the parameter and use only hash-tables.