[Haskell] Haskell Weekly News: January 9, 2006
Donald Bruce Stewart
dons at cse.unsw.edu.au
Sun Jan 8 22:26:32 EST 2006
Haskell Weekly News: January 9, 2006
Greetings, and thanks for reading the 19th issue of HWN, a weekly
newsletter for the Haskell community. Each Monday, new editions are
posted to the Haskell mailing list and to The Haskell Sequence.
RSS is also available.
* A Faster Binary. Bulat Ziganshin posted a preliminary optimised
Binary library, achieving excellent (de)serialization speeds of
around 50 Mb/s in testing.
Resources and Tools
* Haskell mail. Simon Peyton-Jones has put together a complete
archive of the Haskell mailing list since its birth in Sept 1990
until Oct 2000 -- the date where the current mailman archive
takes over. This is a valuable resource for the community.
* haskell.org. John Peterson is seeking comments on the
haskell.org move to MediaWiki. Currently only the front page is
finished, and its time for comments. In the end this will allow
anyone to come in and fix up the main haskell.org pages - the
people, the projects, the help for beginners, all of it. One job
that will be needed is to move the current hawiki contents onto
MediaWiki. Feel free to start adding stuff to the new haskellwiki.
* Language Shootout. Discussion took place on on haskell-cafe to
improve the performance of the Haskell entries. This process has
greatly improved some entries. Haskell is now the fastest
entry for the concurrency benchmark, Chameneos. More can still be
done. Some entries are being worked on here. The problems are
quite short, and fairly easy to solve, so fire up the profiler and
* MonadZero. Cale Gibbard opened a discussion about reinclusion
of MonadZero, and removal of `fail' from the Monad class, citing
the overuse of monadic typing to indicate the possibility of
failure as one of the problems. Instead, MonadZero should be used
for failure. References were made to the discussions that took
place on this issue during the Haskell 98 process.
* History channel. On a similar theme, an expedition took place on
#haskell into functions and classes from earlier implementations
of Haskell that had disappeared by Haskell 98. Of particular
interest was the Eval class, and various things in the
constructor class prelude from Gofer, such as:
class (Functor f, Functor g) => NatTransf f g where
eta :: f a -> g a
and fun definitions like:
undefined :: a
undefined | False = undefined
A darcs gui. Eric Kow proposed resurrecting the darcs wxhaskell
gui for a new darcs gui.
Quote of the Week
* autrijus stares at
type Eval x = forall r. ContT r (ReaderT x IO) (ReaderT x IO x)
and feels very lost
<shapr> Didn't you write that code?
<autrijus> yeah. and it works
<autrijus> I just don't know what it means.
Contributing to HWN
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