Re: [Haskell-beginners] print all days of calendar

-------- Original-Nachricht --------

Datum: Mon, 21 Dec 2009 21:12:48 +0100 Von: Daniel Fischer An: beginners@haskell.org CC: kane96@gmx.de Betreff: Re: [Haskell-beginners] print all days of calendar

Am Montag 21 Dezember 2009 20:47:38 schrieb kane96@gmx.de:

...

...

Does (==) ring a few bells?

not really...

Prelude> let okay k = k^3 `mod` 13 == 5 in filter okay [1 .. 30] [7,8,11,20,21,24]

Now, you don't want the numbers between 1 and 30 inclusive whose cube modulo 13 is 5, but the dates in a given month.

getMonth :: Month -> Calendar -> Calendar getMonth month [(1,Jan,y),(2,Jan,y) ... (31,Dec,y)]

more like this: getMonth month calendar = calendar filter ([1..31], month, year) but it doesn't make sense -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01