Welcome to issue 77 of HWN, a newsletter covering developments in the Haskell community.


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 programmers.

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 ACM.

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 framework.

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 Code.

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.

Blog noise

Haskell news from the blogosphere.

Quotes of the Week

About the Haskell Weekly News

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