On Tue, Jul 20, 2004 at 04:42:24PM +0100, Graham Klyne wrote:
I found myself treading a path which led me to asking the same question as [1]. Given the answer [2], I'd like to stand back a little and ask if there's another way to tackle my niggle: what I'm interested in is a set comprehension expression that is analogous to a list comprehension expression; e.g. in:
Though I do not have an answer for you, I do occasionally feel the need (ehm, need is a bit too strong a word) for some-kind-of-collection-comprehensions too. Also, GHC has the parallel array extension which adds array-comprehensions; although I think it's impossible to fit in haskell 98, it would be nice to have some general mechanism on which "collection-comprehensions" (and enumerations: [1..5], [:1..5:], ...) could be based. Groetjes, Remi -- Nobody can be exactly like me. Even I have trouble doing it.