25 Feb
2011
25 Feb
'11
6 p.m.
On 25 February 2011 20:38,
The short version is that I think there is a more enlightening view of iteratees than as a kind of a fold. For me, it makes a lot more sense to think of them as operations in a particular abstract monad which has one associated operation, a blocking read. Under that view, it is also very easy to extend them in arbitrary directions, such as adding support for incremental output.
There was a thread on Haskell-cafe a while ago noting some similarity between the iteratees and the resumption monad. http://www.haskell.org/pipermail/haskell-cafe/2010-August/082533.html Note the archives indexing is a little disjointed.