[Haskell-cafe] Haskell Weekly News: Issue 109 - March 14, 2009
byorgey at seas.upenn.edu
Sat Mar 14 09:58:27 EDT 2009
Haskell Weekly News
Issue 109 - March 14, 2009
Welcome to issue 109 of HWN, a newsletter covering developments in the
Congratulations to the authors of RWH on their Jolt award! Some cool
libraries released this week (as usual), and some really cool PhD
opportunities at Strathclyde. Also, it seems that I was censured
last week for not including any quotes in the HWN, which is because
tunes.org (which hosts the #haskell logs) was down while I was putting
it together. So, this time I've included quotes going back two weeks, I
HOPE YOU'RE HAPPY
Tom DuBuisson (TomMD) has moved to Portland and will be starting a
PhD at Portland State soon.
darcs fundraising drive - only $720 left to go!. Eric Kow announced
that donations are still being accepted to help pay for travel to
the upcoming Haskell hackathon. So far we have raised $280, so we're
almost a third of the way there. Think you can help?
Vintage BASIC 1.0. Lyle Kopnicky announced the initial release of
Vintage BASIC, an interpreter for microcomputer-era BASIC. Fully
unit-tested, it faithfully implements the common elements of the
language. On the web site, you can find 102 games from the classic book
BASIC Computer Games, all of which run flawlessly. Have fun!
ThreadScope: Request for features for the performance tuning of
parallel and concurrent Haskell programs. Satnam Singh requested
feedback on infrastructure for logging run-time events and a graphical
viewer program called ThreadScope. The goal is for these features
to make it into the next release of GHC.
torch-0.1. Yusaku Hashimoto announced a new unit test framework,
sparsebit 0.5 - Sparse Bitmaps for Pattern Match Coverage. Ki Yung Ahn
announced the release of the sparsebit library. This library
packages the functional peal paper Sparse Bitmaps for Pattern Match
Coverage submitted to ICFP 2009 by Ki Yung Ahn and Tim Sheard.
happs-tutorial 0.8. Crieghton Hogg announced the release of
happs-tutorial 0.8, which is compatible with happstack-0.2. A
number of changes have occurred in this release, including general code
cleanup, migration to the new Happstack.Server.SimpleHTTP API, and
Future 1.1.0 concurrency library. ChrisK announced the future
package, which ought to do what C++ standard futures/promises do, plus
a bit more. The main operation is forkPromise :: IO a -> IO (Promise
a), which sets the "IO a" operation running in a fresh thread; the
eventual result can be accessed in many ways (non-blocking, blocking,
blocking with timeout).
Holumbus-MapReduce 0.0.1. Stefan Schmidt announced three new
libraries: Holumbus-MapReduce, Holumbus-Distribution, and
Holumbus-Storage, which provide tools for building distributed
systems. These libraries are used as the backbone of the Holumbus
Turbinado V0.6. Alson Kemp announced the release of Turbinado
0.6, a Rails-ish Model-View-Controller web serving framework for
Haskell. New features include support for CGI serving, statically
compiled Layouts, Views, and Controllers, lower case paths, support for
cookies and encrypted cookie sessions, easier installation, and support
for GHC 6.10.
iteratee-0.1.0. John Lato announced the hackage release of
iteratee-0.1.0. This library implements enumerators and iteratees
as proposed by Oleg Kiselyov.
Harpy 0.4.4 - Runtime code generation for x86 machine code. Dirk
Kleeblatt announced the release of Harpy 0.4.1, a library for
runtime code generation for x86 machine code. The new release features
additional Eq instances, support for new prefetching instructions, and
some bug fixes.
Suggestion for a Haskell mascot. Maur�cio suggested using a sloth
as the Haskell mascot. If you would like to know how to say 'sloth' in
just about every language ever, read this thread.
Microsoft PhD Scholarship at Strathclyde. Conor McBride announced
another PhD opportunity at Strathclyde, sponsored by Microsoft
Research, to investigate the practical and theoretical impact of
extending Haskell's type system with numeric expressions (representing
sizes, or ranges, or costs, for example) and constraints capturing
richer safety properties than are currently managed by static typing.
Haskell news from the blogosphere.
* Braden Shepherdson: Pimp Your XMonad #4: Urgency Hooks.
* Thomas M. DuBuisson: Explicit Parallelism via Thread Pools.
* Ketil Malde: Current developments. Ongoing development of the
biohaskell libraries for bioinformatics.
* Philip Wadler: Cafe Scientifique. Philip will be giving a talk,
"Proofs are Programs: 19th Century Logic and 21st Century
Computing", on Monday in Edinburgh.
* Yi: Yi 0.6.0 Release Notes.
* Alson Kemp: ANNOUNCE: Turbinado V0.6.
* GHC / OpenSPARC Project: Thread activity plotting.
* Real-World Haskell: We won a Jolt Award!.
* Real-World Haskell: Real World Haskell on the Kindle 2.
* Christophe Poucet (vincenz): Bootstrapping cabal.
* Gtk2HS: Mickinator File Manager.
* Osfameron: (rough) Grids in Haskell. Some notes on representing
2D grids in Haskell.
* Manuel M T Chakravarty: These graphs summarise the performance
of Data Parallel Haskell....
* GHC / OpenSPARC Project: Project midpoint.
* GHC / OpenSPARC Project: The GNU Debugger and me.
* Don Stewart (dons): Evolving faster Haskell programs. Using
genetic algorithms to find optimal flag combinations.
* Xmonad: Xmonad and the Gimp.
* Xmonad: xmonad on eee.
* Mark Wassell: Conversations with a type checker.
* Holumbus: Holumbus-MapReduce on Hackage. Some neat libraries
for building distributed systems!
* Darcs: darcs weekly news #20.
* Nick Mudge: First Bay Area Haskell Meeting.
* Dan Piponi (sigfpe): Dinatural Transformations and Coends.
Quotes of the Week
* mmorrow: when i first saw haskell i was like "holy shitfork! that's
what i've been trying to do in C for forever!"
* pastah: the maybe monad is like cheating. everything is so
* wli: Monads are like constipation. Comonads are like Ex-Lax.
* TomMD: Never trust IO.
* Axman6: let blah f x = f (blah f x) in blah ("blah "++) ""
* MyCatVerbs: Lazy IO is implemented in terms of unsafePerformIO,
you, you, you silly bipedal carbon-based organism.
* MyCatVerbs: Amdahl's law is mostly to be used for making people
* Axman6: -ddump-occur-anal <- another terrible name...
* AchimSchneider: Finite automata don't go bottom in any case, at
least not if you don't happen to shoot them and their health drops
* ski: the truth (semantics), the whole truth (completeness), and
nothing but the truth (soundness)
* f4hy: wait you can do a show on an infinite list?! (I am starting
to think haskell is not a programming language, it is evil
* Baughn: concat $ forM [(1,2), (4,5)] $ \(a,b) -> show (b,a+b)
About the Haskell Weekly News
New editions are posted to the Haskell mailing list as well as to
the Haskell Sequence and Planet Haskell. RSS is also
available, and headlines appear on haskell.org.
To help create new editions of this newsletter, please see the
information on how to contribute. Send stories to byorgey at cis
dot upenn dot edu. The darcs repository is available at darcs get
More information about the Haskell-Cafe