[Haskell-cafe] Haskell Weekly News: Issue 210

Daniel Santa Cruz dstcruz at gmail.com
Thu Dec 8 06:11:01 CET 2011


Welcome to issue 210 of the HWN, a newsletter covering developments in
the Haskell community. This release covers the week of November 27 to
December 3, 2011.

You can find the HTML version at:
http://contemplatecode.blogspot.com/2011/12/haskell-weekly-news-issue-210.html

Announcements

   Heinrich Hordegen announced a tentative 2012 meeting schedule for
   Munich Haskell group.
   [1] http://goo.gl/JrnP6

New and Updated Projects

   * data-timeout (Mikhail Vorozhtsov) Allows one to specify time
     units for timeouts and convert between them.
     [2] http://goo.gl/fbfGM

   * Netwire (Ertugrul Soylemez; 3.0.0) Major API change.
     [3] http://goo.gl/8hPwS

   * monad-control (Bas van Dijk; 0.3) New and improved API.
     [4] http://goo.gl/so3s9

Quotes of the Week

   * Jafet: They're not nasty; their niceness is just distributed over
     more people

   * copumpkin: U NEED MOANAD

   * xplat: i have a feeling that trying to write an interesting
     dependently-typed program in Shen at any time in the near future
     would be like trying to host a holiday dinner starting with an
     empty lot, 2x4s, a stack of window panes, some cables and wiring
     boxes, sheets of drywall, disconnected appliances, roof shingles,
     rolls of insulation and bags of concrete

   * Axman6: {-# PRAGMA ThisShitNeedsMoarFast #-}

Top Reddit Stories

   * Name Your Type Variables!
     Domain: amateurtopologist.com, Score: 71, Comments: 38
     On Reddit: [5] http://goo.gl/I2uny
     Original: [6] http://goo.gl/yRbmO

   * Insane Haskell Professor on Lambda Calculus. Wait for it...
     Domain: youtube.com, Score: 66, Comments: 17
     On Reddit: [7] http://goo.gl/uDQJS
     Original: [8] http://goo.gl/IauHk

   * criterion 0.6 produces shiny new performance reports
     Domain: bos.github.com, Score: 63, Comments: 8
     On Reddit: [9] http://goo.gl/F2K76
     Original: [10] http://goo.gl/x720h

   * [commit: base] master: Add traceStack :: String -> a -> a
     Domain: haskell.org, Score: 48, Comments: 5
     On Reddit: [11] http://goo.gl/HCbf2
     Original: [12] http://goo.gl/JzO3O

   * Elm: functional reactive web-programming (compiles to html, css, js).
Just added reactive values, basic canvas support, and new interactive
examples.
     Domain: elm-lang.org, Score: 45, Comments: 19
     On Reddit: [13] http://goo.gl/mKS9a
     Original: [14] http://goo.gl/ASt27

   * Snap 0.7 released
     Domain: snapframework.com, Score: 41, Comments: 1
     On Reddit: [15] http://goo.gl/R3A8Y
     Original: [16] http://goo.gl/SVgXy

   * Haskell Communities and Activities Report - November 2011 edition
     Domain: haskell.org, Score: 35, Comments: 0
     On Reddit: [17] http://goo.gl/X82AK
     Original: [18] http://goo.gl/CGKAr

   * "fix' f = f (fix' f)" vs. "fix f = let x = f x in x"
     Domain: groups.google.com, Score: 33, Comments: 15
     On Reddit: [19] http://goo.gl/vadtO
     Original: [20] http://goo.gl/SQSFL

   * Announcing cabal-src: solve (some of) cabal dependency hell
     Domain: yesodweb.com, Score: 32, Comments: 15
     On Reddit: [21] http://goo.gl/PIB4S
     Original: [22] http://goo.gl/00LZz

   * aeson 0.4: easier, faster, nicer
     Domain: github.com, Score: 31, Comments: 18
     On Reddit: [23] http://goo.gl/G1J5A
     Original: [24] http://goo.gl/DQ4bc

   * Package authors: Please use Packdeps!
     Domain: yesodweb.com, Score: 24, Comments: 10
     On Reddit: [25] http://goo.gl/bLYvt
     Original: [26] http://goo.gl/fNh9n

   * Slides from my guest lecture at Stanford
     Domain: blog.johantibell.com, Score: 22, Comments: 14
     On Reddit: [27] http://goo.gl/ITFkN
     Original: [28] http://goo.gl/4w1tK

Top StackOverflow Questions

   * How to write a Haskell function that takes a variadic function as an
argument
     votes: 28, answers: 1
     Read on SO: [29] http://goo.gl/JqZ3H

   * Functional lenses
     votes: 18, answers: 2
     Read on SO: [30] http://goo.gl/Qn2Ff

   * Haskell : An example of a Foldable which is not a Functor?
     votes: 17, answers: 2
     Read on SO: [31] http://goo.gl/42lSo

   * How does IncoherentInstances work?
     votes: 17, answers: 1
     Read on SO: [32] http://goo.gl/O1Ha4

   * Minimum specification for Haskell library type classes?
     votes: 16, answers: 2
     Read on SO: [33] http://goo.gl/L7mO6

   * Expressive and composable error types
     votes: 16, answers: 1
     Read on SO: [34] http://goo.gl/vkoZb

   * Distributed Haskell state of the art in 2011?
     votes: 16, answers: 2
     Read on SO: [35] http://goo.gl/mx0kd

   * Is it possible to implement liftM2 in Scala?
     votes: 15, answers: 1
     Read on SO: [36] http://goo.gl/p6TDl

   * Are Haskell FlexibleInstances a stable extension to the language?
     votes: 15, answers: 1
     Read on SO: [37] http://goo.gl/sQc37

   * Is Milner let polymorphism a rank 2 feature?
     votes: 13, answers: 4
     Read on SO: [38] http://goo.gl/kOcnW

Until next time,
Daniel Santa Cruz

References

   1. http://comments.gmane.org/gmane.comp.lang.haskell.cafe/94240
   2. http://comments.gmane.org/gmane.comp.lang.haskell.libraries/16691
   3. http://comments.gmane.org/gmane.comp.lang.haskell.cafe/94245
   4. http://comments.gmane.org/gmane.comp.lang.haskell.general/19038
   5.
http://www.amateurtopologist.com/blog/2011/10/11/name-your-type-variables/
   6.
http://www.reddit.com/r/haskell/comments/mxz3k/name_your_type_variables/
   7. http://www.youtube.com/watch?v=5TMojC0Nb6A
   8.
http://www.reddit.com/r/haskell/comments/mw094/insane_haskell_professor_on_lambda_calculus_wait/
   9. http://bos.github.com/criterion/
  10.
http://www.reddit.com/r/haskell/comments/mx8vw/criterion_06_produces_shiny_new_performance/
  11.
http://www.haskell.org/pipermail/cvs-libraries/2011-November/014698.html
  12.
http://www.reddit.com/r/haskell/comments/muq40/commit_base_master_add_tracestack_string_a_a/
  13. http://elm-lang.org/Elm.elm
  14.
http://www.reddit.com/r/haskell/comments/mwbvj/elm_functional_reactive_webprogramming_compiles/
  15. http://snapframework.com/blog/2011/12/01/snap-0.7-released
  16. http://www.reddit.com/r/haskell/comments/mwx4t/snap_07_released/
  17. http://www.haskell.org/communities/11-2011/html/report.html
  18.
http://www.reddit.com/r/haskell/comments/mzbia/haskell_communities_and_activities_report/
  19.
http://groups.google.com/group/stanford-11au-cs240h/browse_thread/thread/41005683f4479eeb
  20.
http://www.reddit.com/r/haskell/comments/mt7nt/fix_f_f_fix_f_vs_fix_f_let_x_f_x_in_x/
  21. http://www.yesodweb.com/blog/2011/11/cabal-src
  22.
http://www.reddit.com/r/haskell/comments/mrz9p/announcing_cabalsrc_solve_some_of_cabal/
  23. https://github.com/bos/aeson/blob/0.4.0.0/release-notes.markdown
  24.
http://www.reddit.com/r/haskell/comments/mvtmk/aeson_04_easier_faster_nicer/
  25. http://www.yesodweb.com/blog/2011/12/please-use-packdeps
  26.
http://www.reddit.com/r/haskell/comments/mvp4w/package_authors_please_use_packdeps/
  27.
http://blog.johantibell.com/2011/11/slides-from-my-guest-lecture-at.html
  28.
http://www.reddit.com/r/haskell/comments/mvoqd/slides_from_my_guest_lecture_at_stanford/
  29.
http://stackoverflow.com/questions/8353845/how-to-write-a-haskell-function-that-takes-a-variadic-function-as-an-argument
  30. http://stackoverflow.com/questions/8307370/functional-lenses
  31.
http://stackoverflow.com/questions/8359115/haskell-an-example-of-a-foldable-which-is-not-a-functor
  32.
http://stackoverflow.com/questions/8371499/how-does-incoherentinstances-work
  33.
http://stackoverflow.com/questions/8320039/minimum-specification-for-haskell-library-type-classes
  34.
http://stackoverflow.com/questions/8320855/expressive-and-composable-error-types
  35.
http://stackoverflow.com/questions/8362998/distributed-haskell-state-of-the-art-in-2011
  36.
http://stackoverflow.com/questions/8366518/is-it-possible-to-implement-liftm2-in-scala
  37.
http://stackoverflow.com/questions/8367423/are-haskell-flexibleinstances-a-stable-extension-to-the-language
  38.
http://stackoverflow.com/questions/8296695/is-milner-let-polymorphism-a-rank-2-feature
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