Re: RFC: make maphash return a list

[Davis Herring <herring@lanl.gov>]

>   (let (mapped-hash) (maphash (lambda (k v) (push (return-something k
>     v) mapped-hash))) (mapcar 'modification-2 (mapcar 'modification-1
>     mapped-hash)))

For what it's worth, you can at least here write

(let (mapped-hash)
  (maphash
   (lambda (k v)
     (push (modification-2 (modification-1 (return-something k v)))
	   mapped-hash))
   hash)
  mapped-hash)

(so long as the various functions are pure enough to allow the
reordering).  Indentation makes it longer than

(let (mapped-hash)
  (maphash (lambda (k v) (push (return-something k v) mapped-hash))
	   hash)
  (mapcar 'modification-2 (mapcar 'modification-1 mapped-hash)))

(which in 80 columns can even have the tiny line appended to the
previous), but I think it is conceptually simpler.

Davis

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