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Language Design
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Date: -- (:)
From: John Max Skaller <skaller@m...>
Subject: Re: Language Design
Andreas Rossberg wrote:

> > [Also, it turns out monads are not general enough to write
> > web services in, which puts me off a bit]
> The following tutorial gives quite a comprehensive explanation of how to
> integrate I/O, stateful computation, and stuff into a purely functional
> language using Monads. And coincidentally it uses a web server as a
> running example ;-)
>         http://research.microsoft.com/Users/simonpj/#marktoberdorf

Thanks. Now, somewhere linked to the Haskell web site,
is an article about 'Arrows', which explains why it was found
Monads are inadequate. I recall the issue was related
to interfacing to CGI scripts and preserving state between
interactions. Sorry I don't have URL handy :-(

John (Max) Skaller, mailto:skaller@maxtal.com.au
10/1 Toxteth Rd Glebe NSW 2037 Australia voice: 61-2-9660-0850
checkout Vyper http://Vyper.sourceforge.net
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