On the general notion of continuations, I believe Matt Might's blog explains it quite well using Javascript.
http://matt.might.net/articles/by-example-continuation-passing-style/ In the way of a simple example, he suggests that instead of writing function id(x) { return x ; } a CPS version might write: function id(x,ret) { ret(x) ; } etc... IMO things appear confusing to newbies (it happened to me once too) when people dont use intuitive names for obvious things like continuations On Fri, Sep 30, 2011 at 11:42 PM, Mark Spezzano < [email protected]> wrote: > Hi, > > Can someone please give me a _lucid_ and _simple_ explanation of exactly > how continuations can be used in Haskell? > > I've already had a look at most of the tutorials and explanations on the > web, but I'm still confused. Continuations and CPS have me baffled. (I have > most of the Haskell textbooks and even these are sketchy on Continuations) > > I don't understand the notion of the Cont monad and how it can be used for > multitasking, backtracking and interrupting computations. I understand that > functions take in a (continuation) function that represents the work > remaining to do, but al of the explanations on the web and in technical > papers seems to trip over themselves in explaining the fundamentals to a > CPS-newbie. > > If anyone could explain such concepts to me in unambiguous, clear English > then this would be very helpful. > > Thanks in advance for your help, > > Mark > > > _______________________________________________ > Haskell-Cafe mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell-cafe >
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