On 2008 May 21, at 12:31, Bulat Ziganshin wrote:
Wednesday, May 21, 2008, 8:11:56 PM, you wrote:Suppose p1, p2, p3 are 3 predicates that take an input -- say, a String. They return either (True, result) or False.if they return Just result or Nothing - yes, use Maybe as monad: combine p1 p2 p3 x= do x1 <- p1 x x2 <- p2 x1 x3 <- p3 x2 return x3
S/He's not passing on r (the result), but s (the argument). Monad ((- >) r)?
-- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED] system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED] electrical and computer engineering, carnegie mellon university KF8NH _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
