[Haskell] Haskell Weekly News: Issue 155 - October 20, 2010 (Originally posted to Haskell-Cafe)

Marc A. Ziegert coeus at gmx.de
Sun Oct 24 02:50:27 EDT 2010


(Not really Haiku form:)

Haskell Weekly News, finally back!
Nooo, they just hid in the café!?
So many to catch up... 3.


Oh, I'm so happy!
Daniel! Thanks!

- Marc





Am Thursday 21 October 2010 schrieb Daniel Santa Cruz:
> Hello all,
> 
> Malcolm Wallace noticed that I had not posted the HWN to this list,
> and requested that I do so.
> I realize that many of you are also following -Cafe, and I do
> apologize if this is a bit spamish due
> to that.  Hopefully some of you will find this useful.
> 
> -Daniel
> 
>  Welcome to issue 155 of the HWN, a newsletter covering developments in
>   the [1]Haskell community in the week of October 10 - 16.
> 
>   This time around we again have 87 posts to HackageDB. Instead of
>   posting the individual packages, we get to see and celebrate the 43
>   people behind these efforts.
> 
>   Want to keep a close eye on the haskellers that lurk twitter? Don
>   Steward made [2]a twitter list of tweeting haskellers! Let him know if
>   you'd like to be added to the list.
> 
>   There were a total of 24 new stories posted to the Haskell Reddit
>   channel, 27 new questions taged with Haskell in StackOverflow, and 408
>   messages posted to Haskell-Cafe.
> 
>   So, what was hot last week?
> 
> Announcements
> 
>   Gregory Crosswhite is pleased to [3]announce the release of a family of
>   packages for type-level natural numbers. He also [4]announced
>   tagged-list, a package which provides fixed-length lists that are
>   tagged with a phantom type-level natural number corresponding to the
>   length.
> 
>   Janis Voigtlander [5]announced that it is time to collect contributions
>   for the 19th edition of the Haskell Communities & Activities Report.
>   The submission deadline is November 1, 2010.
> 
>   Alexander Solla [6]announced his new "Facts" library. The Facts
>   hierarchy is meant to contain commonly used, relatively static facts
>   about the "real world."
> 
>   Kevin Jardine [7]announced polyToMonoid: a library that supplies two
>   very general polyvariadic functions that can map their arguments into
>   any monoid you specify.
> 
>   Simon Hengel [8]announced a new version of DocTest. DocTest now uses
>   Haddock for parsing of comments.
> 
> Interesting Threads on Haskell-Cafe
> 
>   Michael Snoyman [9]reported that Haskellers.com has become popular a
>   lot falter that he anticipated. Read up on what changes are planned for
>   Haskellers.com. Michael is very interested in some help with running
>   the site.
> 
>   Jacek Generowicz [10]asked how to deal with dynamic dispatch on
>   extensible sets of types.
> 
>   Uwe Schmidt [11]replied to a question about why HXT uses arrows as
>   opposed to using monads. Good comments followed.
> 
>   Jason Dusek [12]asked if there is a way to write a Haskell data
>   structure that is necessarily only one or two or seventeen items long;
>   but that is nonetheless statically guaranteed to be of finite length?
>   Twenty-three messages followed.
> 
>   Simon Thompson [13]annouced the availability of books for review for
>   the Journal of Functonial Programming.
> 
>   Andrew Copping [14]summarized a report produced by Google Szwitzerland
>   on taking a Python system and rewriting bits of it in Haskell, some of
>   which is now in production use.
> 
>   Ben Franksen [15]ranted about the current "Haskell Blurb" on the first
>   paragraph of haskell.org. Quite the read to end the week :)
> 
> Top Reddit Stories
> 
>  * Using Haskell’s ‘newtype’ in C
>    Domain: blog.nelhage.com
>    Score: 37, Comments: 5
>    On Reddit: http://www.reddit.com/r/haskell/comments/dptzh/using_haskells_newtype_in_c/
>    Original: http://blog.nelhage.com/2010/10/using-haskells-newtype-in-c/
> 
>  * The Haskell theme: consistent visual branding for Haskell
>    Domain: haskell.org
>    Score: 34, Comments: 11
>    On Reddit: http://www.reddit.com/r/haskell/comments/dqiej/the_haskell_theme_consistent_visual_branding_for/
>    Original: http://www.haskell.org/pipermail/haskell-cafe/2010-October/084781.html
> 
>  * Haskellers: Survey results and new site features
>    Domain: haskellers.com
>    Score: 22, Comments: 6
>    On Reddit: http://www.reddit.com/r/haskell/comments/dr37b/haskellers_survey_results_and_new_site_features/
>    Original: http://www.haskellers.com/news/1/
> 
>  * My Experience Learning Haskell
>    Domain: blog.virtucal.com
>    Score: 21, Comments: 6
>    On Reddit: http://www.reddit.com/r/haskell/comments/drgcz/my_experience_learning_haskell/
>    Original: http://blog.virtucal.com/cyclical/2010/10/14/my-experience-learning-haskell.html
> 
>  * Invertible monads for exception handling and memory allocations
>    Domain: docs.yesodweb.com
>    Score: 21, Comments: 0
>    On Reddit: http://www.reddit.com/r/haskell/comments/drkdj/invertible_monads_for_exception_handling_and/
>    Original: http://docs.yesodweb.com/blog/invertible-monads-exceptions-allocations/
> 
>  * Accelerating Haskell Array Codes with Multicore GPUs
>    Domain: justtesting.org
>    Score: 19, Comments: 0
>    On Reddit: http://www.reddit.com/r/haskell/comments/dq1yo/accelerating_haskell_array_codes_with_multicore/
>    Original: http://justtesting.org/accelerating-haskell-array-codes-with-multico
> 
>  * Unicode text performance improvements
>    Domain: serpentine.com
>    Score: 17, Comments: 1
>    On Reddit: http://www.reddit.com/r/haskell/comments/drinz/unicode_text_performance_improvements/
>    Original: http://www.serpentine.com/blog/2010/10/15/unicode-text-performance-improvements/
> 
>  * Like a coding challenge? Check out Code Quarterly!
>    Domain: serpentine.com
>    Score: 16, Comments: 9
>    On Reddit: http://www.reddit.com/r/haskell/comments/dpjgv/like_a_coding_challenge_check_out_code_quarterly/
>    Original: http://www.serpentine.com/blog/2010/10/11/like-a-coding-challenge-check-out-code-quarterly/
> 
>  * C9 Lecture: Ralf Lämmel on Monads
>    Domain: channel9.msdn.com
>    Score: 16, Comments: 0
>    On Reddit: http://www.reddit.com/r/haskell/comments/dq614/c9_lecture_ralf_lämmel_on_monads/
>    Original: http://channel9.msdn.com/Shows/Going+Deep/C9-Lectures-Dr-Ralf-Lmmel-AFP-The-Quick-Essence-of-Functional-Programming
> 
>  * Take the Haskellers.com survey
>    Domain: spreadsheets.google.com
>    Score: 15, Comments: 3
>    On Reddit: http://www.reddit.com/r/haskell/comments/dq7xj/take_the_haskellerscom_survey/
>    Original: https://spreadsheets.google.com/viewform?formkey=dG8tcVhBdzRSS1lkdVV6U281emtRMWc6MQ
> 
> Top StackOverflow Questions
> 
>  * When is memoization automatic in GHC Haskell?
>    Question (votes: 14, answers: 3)
>    http://stackoverflow.com/questions/3951012/when-is-memoization-automatic-in-ghc-haskell
> 
>  * Why is my code using monadic lists from the List package so slow?
>    Question (votes: 12, answers: 3)
>    http://stackoverflow.com/questions/3916444/why-is-my-code-using-monadic-lists-from-the-list-package-so-slow
> 
>  * Haskell: lift vs liftIO
>    Question (votes: 8, answers: 2)
>    http://stackoverflow.com/questions/3921237/haskell-lift-vs-liftio
> 
>  * Can anyone suggest a good constraint library for Haskell?
>    Question (votes: 8, answers: 2)
>    http://stackoverflow.com/questions/3926656/can-anyone-suggest-a-good-constraint-library-for-haskell
> 
>  * Library function to compose a function with itself n times
>    Question (votes: 6, answers: 4)
>    http://stackoverflow.com/questions/3911060/library-function-to-compose-a-function-with-itself-n-times
> 
>  * Evaluation of a small math type language that supports one variable
>    Question (votes: 5, answers: 1)
>    http://stackoverflow.com/questions/3906231/evaluation-of-a-small-math-type-language-that-supports-one-variable
> 
>  * What's the difference of  a “class” in Haskell and in an “abstract
> class” in OO language?
>    Question (votes: 5, answers: 4)
>    http://stackoverflow.com/questions/3938779/whats-the-difference-of-a-class-in-haskell-and-in-an-abstract-class-in-oo-l
> 
>  * Haskell and State
>    Question (votes: 5, answers: 4)
>    http://stackoverflow.com/questions/3944170/haskell-and-state
> 
>  * Can Haskell guard on abstract data types in a polymorphic function?
>    Question (votes: 5, answers: 3)
>    http://stackoverflow.com/questions/3944756/can-haskell-guard-on-abstract-data-types-in-a-polymorphic-function
> 
>  Quotes of the Week
> 
>   * pumpkin: sounds like a lot of work! it's easier for me to just
>     bitch about it
>   * OlegKiselyov: Haskell is inconsistent in yet another way.
>   * monochrom: just add #! /usr/bin/runghc to your haskell file. then
>     type errors occur at runtime only.
>   * IIcke: [haskell] is like wearing a corset, at the beginning is
>     annoying, but then your tits look bigger and the world becomes a
>     better place
> 
> Contributors to HackageDB
> 
>   Who contributed, and how many uploads did they make?
> 
>   MichaelSnoyman (14), BryanOSullivan (11), GregoryCrosswhite (5),
>   AndyStewart (5), GregoryCollins (4), JosePedroMagalhaes (3),
>   StephenBlackheath (2), SjoerdVisscher (2), PaulTalaga (2), MichaelZuo (2),
>   DanielDiaz (2), ConalElliott (2), AristidBreitkreuz (2),
>   AlexanderSolla (2), YuriyIskra (1), VivianMcPhail (1), TristanSkudlik (1),
>   TonyMorris (1), StephenTetley (1), SimonHengel (1), ReinierLamers (1),
>   OlegBelozeorov (1), NeilMitchell (1), MaxBolingbroke (1),
>   MatthiasBartsch (1), MatthewSottile (1), MasatakeDaimon (1),
>   MarkSnyder (1), ManuelChakravarty (1), LeePike (1), KiYungAhn (1),
>   KevinJardine (1), JustinBailey (1), IlyaPortnov (1), GeoffHulette (1),
>   EugeneKirpichov (1), DonaldStewart (1), DanielSeidel (1), DanielSchoepe (1),
>   CarlHowells (1), BenFranksen (1), ArieMiddelkoop (1), AlexSuraci (1)
> 
> About the Haskell Weekly News
> 
>   New editions are posted to [16]the Haskell mailing list as well as to
>   [17]the Haskell Sequence and [18]Planet Haskell. [19]RSS is also
>   available, and headlines appear on [20]haskell.org.
> 
>   To help create new editions of this newsletter, please send stories to
>   dstcruz * at * gmail * dot * com. The code used to produce this version
>   of the newsletter is not yet publicly available, as it is a complete
>   hack designed to get things started again.
> 
>   Until next time,
>   Daniel Santa Cruz
> 
> References
> 
>   1. http://haskell.org/
>   2. http://twitter.com/#!/donsbot/haskellers
>   3. http://groups.google.com/group/haskell-cafe/browse_thread/thread/c0071547638d7cb0
>   4. http://groups.google.com/group/haskell-cafe/browse_thread/thread/ff95d6c78ded677f
>   5. http://groups.google.com/group/haskell-cafe/msg/d9d227b0f38bcf51
>   6. http://groups.google.com/group/haskell-cafe/browse_thread/thread/fc86bd03d091c4bf
>   7. http://groups.google.com/group/haskell-cafe/browse_thread/thread/4ba5741441d7bb33
>   8. http://groups.google.com/group/haskell-cafe/browse_thread/thread/7982f0ad3bc9ce1d
>   9. http://groups.google.com/group/haskell-cafe/browse_thread/thread/2440a1683fe3e739
>  10. http://groups.google.com/group/haskell-cafe/browse_thread/thread/f0a05dd5b58dc3d2
>  11. http://groups.google.com/group/haskell-cafe/browse_thread/thread/38185e7ba6509563/c6063929f39a7197?#c6063929f39a7197
>  12. http://groups.google.com/group/haskell-cafe/browse_thread/thread/7ba4b3b0386fb3d6
>  13. http://www.cs.kent.ac.uk/people/staff/sjt/JFP/available.html
>  14. http://groups.google.com/group/haskell-cafe/browse_thread/thread/81707fea2b1568ee
>  15. http://groups.google.com/group/haskell-cafe/browse_thread/thread/a7c7b569dd524934
>  16. http://www.haskell.org/mailman/listinfo/haskell
>  17. http://sequence.complete.org/
>  18. http://planet.haskell.org/
>  19. http://sequence.complete.org/node/feed
>  20. http://haskell.org/
> _______________________________________________
> Haskell mailing list
> Haskell at haskell.org
> http://www.haskell.org/mailman/listinfo/haskell
> 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: This is a digitally signed message part.
Url : http://www.haskell.org/pipermail/haskell/attachments/20101024/8597869d/attachment.bin


More information about the Haskell mailing list