[Haskell-cafe] Haskell Weekly News: Issue 77 - July 16, 2008
byorgey at seas.upenn.edu
Wed Jul 16 16:13:54 EDT 2008
Haskell Weekly News
Issue 77 - July 16, 2008
Welcome to issue 77 of HWN, a newsletter covering developments in the
Takusen 0.8.3. Alistair Bayley announced the release of Takusen
0.8.3, with ODBC support, more Cabal improvements, bug fixes, and some
basic result-set validation.
Launching Haskell Group in Vancouver, Canada. Jon Strait announced
that a Haskell Programmers Group has been created in Vancouver; the
first meeting is scheduled for next Monday, July 21st. Feel free to
join the Google Groups list to be notified of future events, or just
show up to a meeting to bounce ideas and questions off of other Haskell
Sphinx full-text searching client on Hackage. Chris Eidhof announced
work on a client for the sphinx full-text search engine. Help
hacking on it, testing it or improving documentation is welcome.
haskell-src-exts 0.3.5. Niklas Broberg announced that the
haskell-src-exts package is now updated to understand the current
version of Template Haskell syntax. Bug reports welcome.
Prime time for Haskell. Janis Voigtlaender announced that Haskell
STM is featured in an article in this month's Communications of the
vector 0.1 (efficient arrays with lots of fusion). Roman Leshchinskiy
announced an initial release of the vector library, which will
eventually provide fast, Int-indexed arrays with a powerful fusion
Galois Tech Talks: Stream Fusion for Haskell Arrays. Don Stewart
announced that he was giving this week's Galois Tech Talk, on
stream fusion for Haskell arrays. The talk was yesterday, July 15, but
hopefully some sort of recording or slides will be made available.
protocol-buffers. Chris Kuklewicz announced a very early version of
the protocol-buffers package, a Haskell interface to Google's newly
released data interchange format.
GHC IRC meeting. Simon Marlow announced the (first weekly?) IRC
meeting to discuss GHC, a scheduled time when the developers turn up on
#ghc, discuss current topics around GHC, and users can chime in with
questions, points for discussion, complaints and so on. The first
meeting took place on July 16 at 1600 BST (UTC +1)/0800 PDT
(UTC-7)/1100 EDT (UTC-4), in the #ghc channel on chat.freenode.net;
hopefully this will become a weekly event.
Google Summer of Code
Progress updates from participants in the 2008 Google Summer of
GHC API. Thomas Schilling (nominolo) is working on improvements to
the GHC API. He recently asked for comments on a proposed
refactoring to the GHC API, creating a new Ghc monad to capture error
handling and single-threaded use of Sessions.
GHC plugins. Max Bolingbroke is working on dynamically loaded plugins
for GHC. This week, he wrote a ton of Haddock documentation for GHC
internals. He also added the ability for compiler plugins to generate
their own source annotations, to allow plugins to use intermediate
results from previous plugins. He's currently working on an exciting,
secret feature: tune in next week to find out what it is!
Generic tries. Jamie Brandon is working on a library for efficient maps
using generalized tries. Jamie is currently working on, tweaking
the api, writing tests and writing reference implementations on
sorted and unsorted association lists.
Hoogle 4. Neil Mitchell (ndm) is working on Hoogle 4. This
week, he worked on type search and database generation. Next week he
plans to finish up type search and release and command-line version.
Language.C. Benedikt Huber (visq) is working on Language.C, a
standalone parser/pretty printer library for C99.
DPH physics engine. Roman Cheplyaka (Feuerbach) is working on a
physics engine using Data Parallel Haskell.
Cabal dependency framework. Andrea Vezzosi (Saizan) is working on a
make-like dependency analysis framework for Cabal.
Proposals and extensions to the standard libraries.
adding split to Data.List. Gwern Branwen proposed adding some
split-like functions to Data.List. Will they actually get added this
time? Will people be able to agree on one of the seventeen possible
sets of semantics? Tune in next time...
GHC API: monad and error handling. Thomas Schilling asked for
comments on a proposed refactoring to the GHC API, creating a new Ghc
monad to capture error handling and single-threaded use of Sessions.
Research positions on Modeling and Analyzing Software Adaptation,
University of Koblenz. Ralf Lammel announced two research positions
for a postdoc and a PhD student, available initially for 2 years. The
successful applicants will work on the research theme of "ADAPT:
Modeling and Analyzing Software Adaptation". The objective of ADAPT
is to relate, advance, combine, and challenge adaptation methods and
associated methods of modeling and analyzing that are used by the
communities of software engineering, programming languages, logic-based
modeling, multi-agent systems, formal methods, SOA, web systems, and
mobile, autonomous systems.
Haskell news from the blogosphere.
* Real-World Haskell: Real World Haskellers at OSCON next week.
John Goerzen and Bryan O'Sullivan will be in Portland, Oregon next
week for OSCON (along with Don Stewart, who lives in Portland).
* Russell O'Connor: ICFP 2008 Post-Mortem.
* Brent Yorgey: Call for an ICFP Mars Server. Will someone make a
Mars Server where we can all submit our rovers and new maps, watch
them compete, improve them, and generally have fun getting some
feedback without bugging the organizing committee? Pretty please?
* Jamie Brandon: Week 5 progress. An update on Jamie's Google
Summer of Code project.
* Brent Yorgey: ICFP programming contest reflections.
* >>> Chris Bogart: Help with study of functional programmers.
Chris is doing a study as part of a research internship at
Microsoft, and is seeking people currently working on a real
project in a functional language whom he can observe as part of his
* >>> eigenclass: Quicksort erratum. A time and space analysis of
a classic quicksort implementation in Haskell.
* Ralf Lammel: Research positions on Modeling and Analyzing
Software Adaptation, University of Koblenz.
* Max Bolingbroke: Compiler Plugins For GHC: Week Five. An update
on Max's Google Summer of Code project.
* Luke Plant: Haskell Blog Rewrite - Session 7. Luke documents
setting up CentOS in VirtualBox VM in order to compile Haskell code
for a server to which he does not have ssh access. Not for the
faint of heart.
* Chris Eidhof: Stemming with Haskell. A stemming library and
Sphinx client for Haskell.
* >>> Duane Johnson: Haskell is Popular on IRC. The large amount
of community participation and academic brainshare gives Duane a
lot of confidence in Haskell.
* >>> Mike Harris: ICFP Programming Contest '08. Mike
participated in the ICFP programming contest, and might try porting
his solution to Haskell.
* Luke Palmer: The Curry-Howard isomorphism and the duality of x
* Magnus Therning: Playing with prefixes. Magnus explores
different ways to encode units of storage (bytes, kilobytes,
kibibytes...) in Haskell.
* Dan Piponi (sigfpe): MSFP 2008.
* Shin-Cheng Mu: Tail-Recursive, Linear-Time Fibonacci.
* Neil Mitchell: GSoC Hoogle: Week 7.
* FP Lunch: CCC-ness of the category of containers.
* JP Moresmau: instance Data Map where -- half done!. JP writes
an Data.Generics.Data instance for Data.Map.
* >>> Rick Carback: AutoKey in Haskell. Rick is learning Haskell
and has implemented a simple AutoKey cipher.
* >>> Jeremy Frens: PE Problem #2 in All Languages (Part II).
* Luke Palmer: Required Optimization. Annotations for specifying
expected compiler optimizations?
* London Haskell Users Group: AngloHaskell 2008.
* >>> Justus: random programming. Solving a simple programming
challenge in Haskell.
Quotes of the Week
* Japsu: segfault cat is watching you unsafeCoerce
* z0MB13: who can say hello to me as a md5 or decipher what kind of
technique can be used to remove the password
* denq: [upon experiencing a moment of enlightenment] oh! something
bing in my brain :)
* Pseudonym: Pseudonym needs codependent types - useful when you're
doing dysfunctional programming.
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