Since nobody with write access to that page seems to be responding here, you may wish to try reporting this bug to the main Haskell mailing list (haskell@haskell.org). Posting to that list may get the attention of some Haskell users who may not regularly read this mailing list. Benjamin L. Russell --- Peter Hercek wrote:

Hi,

About 3 weeks ago I reported this bug to Jeff Newbern. But I got no response - maybe I got filtered out as spam :) Since it was not fixed I'm trying once more here. Maybe there is somebody here who has access to the web site http://www.haskell.org/all_about_monads and cares enough to fix it.

On page

http://www.haskell.org/all_about_monads/html/writermonad.html

there is "listens" defined like this: listens f m = do (a,w) <- m; return (a,f w) ... but it should be like this: listens f m = do (a,w) <- listen m; return (a,f w) ... or maybe a less strict option (as ghc libs have it): listens f m = do ~(a,w) <- listen m; return (a,f w)

Peter.

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