[Haskell-cafe] Haskell Weekly News: Issue 82 - August 20, 2008
byorgey at seas.upenn.edu
Wed Aug 20 14:18:08 EDT 2008
Haskell Weekly News
Issue 82 - August 20, 2008
Welcome to issue 82 of HWN, a newsletter covering developments in the
Lava2000 on Hackage. Emil Axelsson announced that Lava2000 has
been uploaded to Hackage. Lava is a structural hardware description
library embedded in Haskell. This version of Lava focuses on
verification, and connects to a number of different verification
engines (although only Smv and Satzoo are maintained in this version).
QuickCheck and HPC Tutorial. Andy Gill announced a half day tutorial
on QuickCheck and HPC to be held at DEFUN, taught by Andy Gill and
Koen Claessen. The latest version of QuickCheck will also be released
in conjunction with the tutorial.
Compiler Construction course using Haskell?. Johannes Waldmann
announced that he plans to give a course in compiler construction,
using Haskell as the implementation language. Any comments are
appreciated, especially from anyone who has given or taken such a
witness 0.1, open-witness 0.1. Ashley Yakeley announced the release
of these new packages and the draft paper on which they are based.
posix-realtime 0.0.1. Vasili Galchin announced the release of the
benchpress 0.2.1. Johan Tibell announced the first public release of
benchpress, a micro-benchmark library that produces statistics such
as min, mean, standard deviation, median, and max execution time.
wavconvert 0.1.1. Tim Chevalier announced the release of
wavconvert, a tool which takes a directory tree as an argument, and
converts any .wav files in it to .ogg (using an external OGG encoder)
while filling in the ID3 tags based on the directory names.
darcs hacking sprint (25-26 October). Eric Y. Kow announced a darcs
hacking sprint, to be held on the 25-26 of October, in Cambridge and
Portland (and over IRC). The perfect opportunity to get involved, if
you are interested in doing some hacking on darcs. Let Eric know if you
X Haskell Bindings. Antoine Latter announced that he is slowly
porting XCB (the X C Bindings) to Haskell, and would like input
from any interested parties.
logfloat. wren ng thornton announced the release of the logfloat
package for manipulating log-domain floating numbers. The main reason
for casting numbers into the log-domain is to prevent underflow when
multiplying many small probabilities as is done in Hidden Markov Models
and other statistical models often used for natural language
processing. The log-domain also helps prevent overflow when multiplying
many large numbers.
Roguestar 0.2.2. Christopher Lane Hinson announced the release of
version 0.2.2 of Roguestar.
Google Summer of Code
Progress updates from participants in the 2008 Google Summer of
Hoogle 4. Neil Mitchell (ndm) is working on Hoogle 4. This
week, he worked on getting out the last kinks to make Hoogle 4
usable as a replacement for Hoogle 3. Although this is the last
official week of the GSoC, he plans to continue working on it when he
DPH physics engine. Roman Cheplyaka (Feuerbach) is working on a
physics engine using Data Parallel Haskell.
GHC plugins. Max Bolingbroke is working on dynamically loaded plugins
Cabal dependency framework. Andrea Vezzosi (Saizan) is working on a
make-like dependency analysis framework for Cabal.
Language.C. Benedikt Huber (visq) is working on Language.C, a
standalone parser/pretty printer library for C99.
Generic tries. Jamie Brandon is working on a library for efficient maps
using generalized tries.
GHC API. Thomas Schilling (nominolo) is working on improvements to
the GHC API.
Platform Architect at Peerium, Inc.. Don Stewart forwarded a job
opportunity for a Haskell programmer at Peerium, Inc. Peerium is
building a new software platform for direct, real-time communication
and collaboration within graphically rich environments, and is looking
for a platform architect proficient in Haskell to work with the
founders to design and implement components of the runtime and
supporting libraries for our software platform. Resumes should be
forwarded to hr peerium.com.
Haskell news from the blogosphere.
* Don Stewart: The 500 Packages: Haskell, Distros, and
* Neil Mitchell: Hoogle New Features. Neil has finished his
Google Summer of Code work on the new version of Hoogle, but
still intends to continue working on it when he gets the chance. A
number of new features have been added.
* Well-Typed.Com: Solving the diamond dependency problem. Duncan
explains how the newest version of Cabal (mostly) solves the DDDP
(dreaded diamond dependency problem).
* Real-World Haskell: Two new chapters, preorder links, and a
page count estimate. Two new beta chapters are up!
* Dan Piponi (sigfpe): Untangling with Continued Fractions: Part
1. Dan continues his fascinating series on rational tangles,
showing how to describe a tangle using do-notation.
* Christopher Lane Hinson: ANN: Roguestar 0.2.2.
* Luis Araujo: Himerge (and Haskell) out to the street!.
* Neil Mitchell: GSoC Hoogle: Week 12.
* Twan van Laarhoven: A generic merge function.
* Luke Palmer: Slicing open the belly of the IO monad in an
alternate universe. Luke explores methods of safely performing some
I/O without the IO monad in the context of FRP.
* Ketil Malde: The wee beginnings of a biohaskell tutorial? --
and some thoughts on programming productivity.
* Douglas M. Auclair (geophf): Using Difference Lists.
* Real-World Haskell: Mid-August status update.
Quotes of the Week
* SimonM: People don't seem to believe me when I say this. In
retrospect we shouldn't have called it forkOS, we should have
called it forkReallyExpensiveOnlyNecessaryForCallingOpenGL_IO.
* quicksilver: unsafeInterleaveIO gives you a way to cheat if you're
happy to descend into a mire of programs with no semantics.
* dmhouse: Eurgh, metastereo quotes.
* quicksilver: [on @yhjulwwiefzojcbxybbruweejw] it's the noise a
haskell developer makes if you kick him in the de bruijn index.
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