[Haskell-cafe] Haskell Weekly News: Issue 234

Thu Sep 6 02:39:43 CEST 2012

Welcome to issue 243 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of August 26 to September 01, 2012.

Quotes of the Week

   * companion_cube: "I don't understand this article at all"
     edwardk: "Well, when you finish reading it, here's a follow-up
             article"

Top Reddit Stories

   * Parsing with Haskell and Attoparsec
     Domain: newartisans.com, Score: 64, Comments: 8
     On Reddit: [1] http://goo.gl/rrlQG
     Original: [2] http://goo.gl/aHlTJ

   * FRP - Release of reactive-banana-0.7.
     Finally features dynamic event switching!
     Domain: apfelmus.nfshost.com, Score: 48, Comments: 21
     On Reddit: [3] http://goo.gl/5QnBl
     Original: [4] http://goo.gl/8dnLg

   * Combinatorrent - Writing Haskell Code for Fun and Profit [InfoQ]
     Domain: infoq.com, Score: 46, Comments: 14
     On Reddit: [5] http://goo.gl/FE4OF
     Original: [6] http://goo.gl/feU7U

   * Putting it all together -- Example project that pulls together
     Snap, Blaze, OpenId, IxSet, AcidState, and Sessions.
     Domain: self.haskell, Score: 34, Comments: 3
     On Reddit: [7] http://goo.gl/huFaI
     Original: [8] http://goo.gl/huFaI

   * Invert the Inversion of Control
     Domain: thev.net, Score: 32, Comments: 30
     On Reddit: [9] http://goo.gl/1uO5a
     Original: [10] http://goo.gl/89UnF

   * A follow up on my initial experience and why there's
     still something immensely attractive about Haskell
     Domain: binarysculpting.com, Score: 27, Comments: 19
     On Reddit: [11] http://goo.gl/3RLNO
     Original: [12] http://goo.gl/81YF2

   * Haskim -- a convenient Haskell VIM distribution
     Domain: github.com, Score: 25, Comments: 19
     On Reddit: [13] http://goo.gl/9sJ3O
     Original: [14] http://goo.gl/Wq0Rq

   * Introducing Perdure: persistence for acyclic immutable data
     Domain: hackage.haskell.org, Score: 23, Comments: 12
     On Reddit: [15] http://goo.gl/ACWDi
     Original: [16] http://goo.gl/CSi57

   * Existential types and data abstraction
     Domain: iveselov.info, Score: 22, Comments:
     On Reddit: [17] http://goo.gl/K6JGl
     Original: [18] http://goo.gl/GBYlW

   * I just realized that running monads is applying a left monad action
     Domain: self.haskell, Score: 20, Comments: 63
     On Reddit: [19] http://goo.gl/Geus4
     Original: [20] http://goo.gl/Geus4

Top StackOverflow Questions

   * How can I recover sharing in a GADT?
     votes: 14, answers: 2
     Read on SO: [21] http://goo.gl/I3cuW

   * Constructing efficient monad instances on `Set`
     (and other containers with constraints) using the continuation monad
     votes: 13, answers: 2
     Read on SO: [22] http://goo.gl/Ys4Uy

   * Numbers as multiplicative functions (weird but entertaining)
     votes: 12, answers: 1
     Read on SO: [23] http://goo.gl/yN8KN

   * Game server in Haskell
     votes: 10, answers: 3
     Read on SO: [24] http://goo.gl/QV9de

   * Why doesn't sortBy take (a -> a -> Bool)?
     votes: 10, answers: 5
     Read on SO: [25] http://goo.gl/Y7EzD

   * Default type instances referring to each other
     votes: 9, answers: 1
     Read on SO: [26] http://goo.gl/6cUG7

   * Applying a fixed-length-vector-function to the inital part of a
     longer fixed-length-vector
     votes: 9, answers: 2
     Read on SO: [27] http://goo.gl/03KcE

   * Haskell: example of function of type a -> a, besides the identity
     votes: 9, answers: 5
     Read on SO: [28] http://goo.gl/q2UDW

   * Stack overflow when using Haskell sort function
     votes: 8, answers: 2
     Read on SO: [29] http://goo.gl/D31Ku

   * How to navigate up inside a HUET Zipper
     votes: 7, answers: 2
     Read on SO: [30] http://goo.gl/X7dE3

   * Haskell : reference to previously updated elements of list within
     the update function
     votes: 7, answers: 6
     Read on SO: [31] http://goo.gl/0yRIo

   * Is there any way to make parsec report “shift-reduce” conflicts?
     votes: 7, answers: 1
     Read on SO: [32] http://goo.gl/LQeDG

   * Haskell: how to write a monadic variadic function, with parameters
     using the monadic context
     votes: 7, answers: 1
     Read on SO: [33] http://goo.gl/ThniY

   * Haskell parMap and parallelism
     votes: 7, answers: 1
     Read on SO: [34] http://goo.gl/3qQHu

Until next time,
Daniel Santa Cruz

References

   1. http://newartisans.com/2012/08/parsing-with-haskell-and-attoparsec/
   2.
http://www.reddit.com/r/haskell/comments/z2lir/parsing_with_haskell_and_attoparsec/
   3. http://apfelmus.nfshost.com/blog/2012/08/26-frp-banana-0-7.html
   4.
http://www.reddit.com/r/haskell/comments/yv6ku/frp_release_of_reactivebanana07_finally_features/
   5. http://www.infoq.com/presentations/Combinatorrent-Haskell-casestudy
   6.
http://www.reddit.com/r/haskell/comments/yzdyr/combinatorrent_writing_haskell_code_for_fun_and/
   7.
http://www.reddit.com/r/haskell/comments/z4iay/putting_it_all_together_example_project_that/
   8.
http://www.reddit.com/r/haskell/comments/z4iay/putting_it_all_together_example_project_that/
   9. http://www.thev.net/PaulLiu/invert-inversion.html
  10.
http://www.reddit.com/r/haskell/comments/z4inb/invert_the_inversion_of_control/
  11. http://binarysculpting.com/2012/09/01/theres-something-about-haskell/
  12.
http://www.reddit.com/r/haskell/comments/z6idz/a_follow_up_on_my_initial_experience_and_why/
  13. https://github.com/jejansse/haskim
  14.
http://www.reddit.com/r/haskell/comments/z3orc/haskim_a_convenient_haskell_vim_distribution/
  15. http://hackage.haskell.org/package/perdure-0.1.2
  16.
http://www.reddit.com/r/haskell/comments/z2sc6/introducing_perdure_persistence_for_acyclic/
  17. http://iveselov.info/posts/2012-08-30-existential-types.html
  18.
http://www.reddit.com/r/haskell/comments/z1ojj/existential_types_and_data_abstraction/
  19.
http://www.reddit.com/r/haskell/comments/ytovd/i_just_realized_that_running_monads_is_applying_a/
  20.
http://www.reddit.com/r/haskell/comments/ytovd/i_just_realized_that_running_monads_is_applying_a/
  21.
http://stackoverflow.com/questions/12230088/how-can-i-recover-sharing-in-a-gadt
  22.
http://stackoverflow.com/questions/12183656/constructing-efficient-monad-instances-on-set-and-other-containers-with-const
  23.
http://stackoverflow.com/questions/12133932/numbers-as-multiplicative-functions-weird-but-entertaining
  24. http://stackoverflow.com/questions/12134097/game-server-in-haskell
  25.
http://stackoverflow.com/questions/12152561/why-doesnt-sortby-take-a-a-bool
  26.
http://stackoverflow.com/questions/12199324/default-type-instances-referring-to-each-other
  27.
http://stackoverflow.com/questions/12221080/applying-a-fixed-length-vector-function-to-the-inital-part-of-a-longer-fixed-len
  28.
http://stackoverflow.com/questions/12230820/haskell-example-of-function-of-type-a-a-besides-the-identity
  29.
http://stackoverflow.com/questions/12203380/stack-overflow-when-using-haskell-sort-function
  30.
http://stackoverflow.com/questions/12129300/how-to-navigate-up-inside-a-huet-zipper
  31.
http://stackoverflow.com/questions/12144973/haskell-reference-to-previously-updated-elements-of-list-within-the-update-fun
  32.
http://stackoverflow.com/questions/12170780/is-there-any-way-to-make-parsec-report-shift-reduce-conflicts
  33.
http://stackoverflow.com/questions/12175912/haskell-how-to-write-a-monadic-variadic-function-with-parameters-using-the-mon
  34.
http://stackoverflow.com/questions/12224842/haskell-parmap-and-parallelism
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