[Haskell-cafe] Haskell Weekly News: Issue 281

Thu Sep 26 03:56:28 CEST 2013

Welcome to issue 281 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of September 15 to 21, 2013.

Quotes of the Week

   * jmcarthur: weak algebraic structures? ha! i prefer my algebraic
     structures to put up more of a fight.

   * newsham: teach a man to pred and he will pred to zero. teach a man
     to succ and he will succ forever

Top Reddit Stories

   * Edward C++Hands
     Domain: bartoszmilewski.com, Score: 83, Comments: 102
     On Reddit: [1] http://goo.gl/64LLo4
     Original: [2] http://goo.gl/0H0yr7

   * Perfect streaming using `pipes-bytestring`
     Domain: haskellforall.com, Score: 59, Comments: 45
     On Reddit: [3] http://goo.gl/oSlzZP
     Original: [4] http://goo.gl/8xwZjc

   * Adding safe coercions to Haskell
     Domain: joachim-breitner.de, Score: 58, Comments: 23
     On Reddit: [5] http://goo.gl/2vs5M9
     Original: [6] http://goo.gl/n0RYA3

   * Which programming languages do you like besides Haskell, and why?
     Domain: self.haskell, Score: 55, Comments: 104
     On Reddit: [7] http://goo.gl/nzgwJQ
     Original: [8] http://goo.gl/nzgwJQ

   * GHC HEAD: merged checkable "minimal complete definitions" (#7633)
     Domain: ghc.haskell.org, Score: 48, Comments: 36
     On Reddit: [9] http://goo.gl/VoZVYL
     Original: [10] http://goo.gl/5F61AX

   * Do companies ever hire someone who has no Haskell experience to be a
     Haskell programmer? If I pursue such a job, how important would a

     Domain: self.haskell, Score: 44, Comments: 50
     On Reddit: [11] http://goo.gl/KA998k
     Original: [12] http://goo.gl/KA998k

   * [Haskell-cafe] PSA: do not install xcode 5 if you are using ghc 7.6
     Domain: haskell.org, Score: 43, Comments: 4
     On Reddit: [13] http://goo.gl/ut6k6p
     Original: [14] http://goo.gl/1G8Syo

   * Model Analysis - The New York Times’ Erik Hinton breaks down a
     Fashion Week special
     Domain: source.mozillaopennews.org, Score: 40, Comments: 4
     On Reddit: [15] http://goo.gl/NdVw6l
     Original: [16] http://goo.gl/bYB8JS

   * Programming reactively with both barrels
     (experiences of Haskell/FRP for mobile games)
     Domain: blog.reactiveprogramming.org, Score: 39, Comments: 7
     On Reddit: [17] http://goo.gl/QXacUo
     Original: [18] http://goo.gl/wLJwt6

   * Why monads have not taken the Common Lisp world by storm [r/lisp]
     Domain: reddit.com, Score: 33, Comments: 14
     On Reddit: [19] http://goo.gl/tZUVWx
     Original: [20] http://goo.gl/w5KHqc

   * 13,000 readers
     Domain: self.haskell, Score: 28, Comments: 11
     On Reddit: [21] http://goo.gl/lTys0R
     Original: [22] http://goo.gl/lTys0R

   * A type for IO actions that do not throw exceptions
     Domain: self.haskell, Score: 25, Comments: 49
     On Reddit: [23] http://goo.gl/Ao8HyB
     Original: [24] http://goo.gl/Ao8HyB

   * ANN: Scotty 0.5.0 Released
     Domain: github.com, Score: 24, Comments: 15
     On Reddit: [25] http://goo.gl/jgGJhO
     Original: [26] http://goo.gl/BejPTF

   * Haskell version freezing
     Domain: blog.docmunch.com, Score: 23, Comments: 8
     On Reddit: [27] http://goo.gl/9LJSjY
     Original: [28] http://goo.gl/Ikd86k

   * PHOAS For Free by Edward Kmett
     Domain: fpcomplete.com, Score: 21, Comments: 8
     On Reddit: [29] http://goo.gl/RDt1BV
     Original: [30] http://goo.gl/o0phN7

   * Cellular Automata, Part III by Edward Kmett
     Domain: fpcomplete.com, Score: 20, Comments: 0
     On Reddit: [31] http://goo.gl/AKCfGw
     Original: [32] http://goo.gl/x7GtH1

   * Translating Haskell programs to Coq [/Gallina] programs
     Domain: github.com, Score: 20, Comments: 2
     On Reddit: [33] http://goo.gl/IQAp3K
     Original: [34] http://goo.gl/qcib77

   * ANN: pipes-csv: a fast, streaming csv parser based on cassava and pipes
     Domain: github.com, Score: 20, Comments: 9
     On Reddit: [35] http://goo.gl/aITtGX
     Original: [36] http://goo.gl/yrzZ7n

Top StackOverflow Questions

   * What does the “Just” syntax mean in Haskell?
     votes: 12, answers: 4
     Read on SO: [37] http://goo.gl/f17UEP

   * How can I understand “:t ((==) <*>)” in haskell?
     votes: 10, answers: 1
     Read on SO: [38] http://goo.gl/CwyBn4

   * why polymorphism is so costly in haskell(GHC)?
     votes: 10, answers: 3
     Read on SO: [39] http://goo.gl/4MjcbH

   * Break and continue in GHCi debugger without use of breakpoints
     votes: 9, answers: 0
     Read on SO: [40] http://goo.gl/HrtcXZ

   * Why is there no `-XDeriveApplicative` extension?
     votes: 8, answers: 1
     Read on SO: [41] http://goo.gl/4dcRF1

   * Downsides to ScopedTypeVariables
     votes: 7, answers: 2
     Read on SO: [42] http://goo.gl/UjBcsg

   * Haskell design encompassing several monads
     votes: 7, answers: 1
     Read on SO: [43] http://goo.gl/EwWd5d

   * How to correct my OOP tendencies when programming in Haksell
     votes: 7, answers: 3
     Read on SO: [44] http://goo.gl/9JVqh7

   * composing functions with higher arity
     votes: 7, answers: 5
     Read on SO: [45] http://goo.gl/jQjNJW

   * Why are Haskell Maps implemented as balanced binary trees instead of
     traditional hashtables?
     votes: 7, answers: 3
     Read on SO: [46] http://goo.gl/nZaLGV

Until next time,
[47]+Daniel Santa Cruz

References

   1. http://bartoszmilewski.com/2013/09/19/edward-chands/
   2. http://www.reddit.com/r/haskell/comments/1mqni1/edward_chands/
   3.
http://www.haskellforall.com/2013/09/perfect-streaming-using-pipes-bytestring.html
   4.
http://www.reddit.com/r/haskell/comments/1msinm/perfect_streaming_using_pipesbytestring/
   5.
http://www.joachim-breitner.de/blog/archives/610-Adding-safe-coercions-to-Haskell.html
   6.
http://www.reddit.com/r/haskell/comments/1mfz8z/adding_safe_coercions_to_haskell/
   7.
http://www.reddit.com/r/haskell/comments/1mvb2e/which_programming_languages_do_you_like_besides/
   8.
http://www.reddit.com/r/haskell/comments/1mvb2e/which_programming_languages_do_you_like_besides/
   9. http://ghc.haskell.org/trac/ghc/ticket/7633#comment:28
  10.
http://www.reddit.com/r/haskell/comments/1mp434/ghc_head_merged_checkable_minimal_complete/
  11.
http://www.reddit.com/r/haskell/comments/1mtcox/do_companies_ever_hire_someone_who_has_no_haskell/
  12.
http://www.reddit.com/r/haskell/comments/1mtcox/do_companies_ever_hire_someone_who_has_no_haskell/
  13.
http://www.haskell.org/pipermail/haskell-cafe/2013-September/108902.html
  14.
http://www.reddit.com/r/haskell/comments/1ml97r/haskellcafe_psa_do_not_install_xcode_5_if_you_are/
  15. http://source.mozillaopennews.org/en-US/learning/model-analysis/
  16.
http://www.reddit.com/r/haskell/comments/1mlgwd/model_analysis_the_new_york_times_erik_hinton/
  17. http://blog.reactiveprogramming.org/?p=107
  18.
http://www.reddit.com/r/haskell/comments/1moob5/programming_reactively_with_both_barrels/
  19.
http://www.reddit.com/r/lisp/comments/1mkqvj/why_monads_have_not_taken_the_common_lisp_world/
  20.
http://www.reddit.com/r/haskell/comments/1mn6vb/why_monads_have_not_taken_the_common_lisp_world/
  21. http://www.reddit.com/r/haskell/comments/1modra/13000_readers/
  22. http://www.reddit.com/r/haskell/comments/1modra/13000_readers/
  23.
http://www.reddit.com/r/haskell/comments/1mpsvj/a_type_for_io_actions_that_do_not_throw_exceptions/
  24.
http://www.reddit.com/r/haskell/comments/1mpsvj/a_type_for_io_actions_that_do_not_throw_exceptions/
  25. https://github.com/xich/scotty/blob/master/ReleaseNotes.md
  26.
http://www.reddit.com/r/haskell/comments/1mr9hf/ann_scotty_050_released/
  27. http://blog.docmunch.com/blog/2013/haskell-version-freezing
  28.
http://www.reddit.com/r/haskell/comments/1mjldi/haskell_version_freezing/
  29. https://www.fpcomplete.com/user/edwardk/phoas
  30.
http://www.reddit.com/r/haskell/comments/1mo59h/phoas_for_free_by_edward_kmett/
  31. https://www.fpcomplete.com/user/edwardk/cellular-automata/part-3
  32.
http://www.reddit.com/r/haskell/comments/1mfaqx/cellular_automata_part_iii_by_edward_kmett/
  33.
https://github.com/gdijkstra/hs-to-gallina/blob/master/docs/report/report.pdf?raw=true
  34.
http://www.reddit.com/r/haskell/comments/1miawm/translating_haskell_programs_to_coq_gallina/
  35. https://github.com/jb55/pipes-csv
  36.
http://www.reddit.com/r/haskell/comments/1mvbk7/ann_pipescsv_a_fast_streaming_csv_parser_based_on/
  37.
http://stackoverflow.com/questions/18808258/what-does-the-just-syntax-mean-in-haskell
  38.
http://stackoverflow.com/questions/18813431/how-can-i-understand-t-in-haskell
  39.
http://stackoverflow.com/questions/18854866/why-polymorphism-is-so-costly-in-haskellghc
  40.
http://stackoverflow.com/questions/18876128/break-and-continue-in-ghci-debugger-without-use-of-breakpoints
  41.
http://stackoverflow.com/questions/18861231/why-is-there-no-xderiveapplicative-extension
  42.
http://stackoverflow.com/questions/18852341/downsides-to-scopedtypevariables
  43.
http://stackoverflow.com/questions/18866558/haskell-design-encompassing-several-monads
  44.
http://stackoverflow.com/questions/18867620/how-to-correct-my-oop-tendencies-when-programming-in-haksell
  45.
http://stackoverflow.com/questions/18905867/composing-functions-with-higher-arity
  46.
http://stackoverflow.com/questions/18908639/why-are-haskell-maps-implemented-as-balanced-binary-trees-instead-of-traditional
  47. https://plus.google.com/105107667630152149014/about
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