[Haskell-beginners] Re: [Haskell-cafe] The problem with Monads...

[Rafael Gustavo da Cunha Pereira Pinto]

I didn't knew Wadler's papers (I save all papers I read into a external USB
HD, so I can read them later!), and at a first glance it is really good.


Then again, instead of creating another "monad tutorial", what about a
Haskell monads reference guide, and some worked examples?

Some of this work could even be attached to the library documentation.

Regards

Rafael


On Tue, Jan 13, 2009 at 15:27, Derek Elkins <derek.a.elkins at gmail.com>wrote:

> On Tue, 2009-01-13 at 16:22 +0000, Sittampalam, Ganesh wrote:
> > Jonathan Cast wrote:
> > > On Tue, 2009-01-13 at 12:56 -0200, Rafael Gustavo da Cunha Pereira
> > > Pinto wrote:
> > >>
> > >> Inspired by the paper "Functional Programming with Overloading and
> > >>         Higher-Order Polymorphism", Mark P Jones
> > >> (http://web.cecs.pdx.edu/~mpj/pubs/springschool.html<http://web.cecs.pdx.edu/%7Empj/pubs/springschool.html>
> )
> > >>           Advanced School of Functional Programming, 1995.
> > >>
> > >> SO WHAT?
> > >
> > > So have you read Jones' paper?  Or do you have a *concrete*
> > > explanation of how it differs from your desired `guided tour'?
> >
> > To give a specific example, a few weeks ago I wanted an explanation of
> > the 'pass' function and couldn't find it in that paper.
> >
> > Ganesh
>
> Several years ago I documented all the (basic) monads in the mtl on the
> (old) wiki.
>
> http://web.archive.org/web/20030927210146/haskell.org/hawiki/MonadTemplateLibrary
> In particular,
> http://web.archive.org/web/20030907203223/haskell.org/hawiki/MonadWriter
>
>
> To respond to the essential point of Rafael's initial claim, Wadler's
> papers "The Essence of Functional Programming" and/or "Monads for
> Functional Programming" have exactly what he wants.  These are the
> papers that I recommend to anyone who is learning about monads.
> http://homepages.inf.ed.ac.uk/wadler/topics/monads.html
>
> Please, we do not need the 101st monad tutorial when there was an
> adequate one made almost two decades ago.  While I'm not saying that
> this is the case here, I suspect that many people don't read those
> papers because 1) they haven't heard of them and 2) they are "papers"
> and thus couldn't possibly be readable and understandable (which also
> partially causes (1) as people just don't think to look for papers at
> all.)
>
>


-- 
Rafael Gustavo da Cunha Pereira Pinto
Electronic Engineer, MSc.
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