Welcome to issue 253 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of November 25 to December 01, 2012.

Quotes of the Week

   * edwardk: this breaks my previous record of 6 unsafeCoerce's in a
           line
   
   * bos:Harpers gona harp.

Top Reddit Stories

   * Pretty Output in GHCi (HOWTO in comments)
     Domain: i.imgur.com, Score: 82, Comments: 14
     On Reddit: [1] http://goo.gl/2c7Ns
     Original: [2] http://goo.gl/uYZAs

   * Stable, Vetted Hackage: Call for Participation
     Domain: yesodweb.com, Score: 59, Comments: 24
     On Reddit: [3] http://goo.gl/QrJEz
     Original: [4] http://goo.gl/1PlBK

   * Strict vs non-strict semantics: "Why can’t I just be a little lazy?"
     Domain: blog.ezyang.com, Score: 42, Comments: 20
     On Reddit: [5] http://goo.gl/P2nSm
     Original: [6] http://goo.gl/WDhk6

   * io-stream: simple and easy to use primitives for I/O using streams
     Domain: github.com, Score: 37, Comments: 10
     On Reddit: [7] http://goo.gl/uDbGG
     Original: [8] http://goo.gl/sGqtY

   * Toward a Secret Sky: Building a Haskell web app with Snap: 
     Snap quickstart guide
     Domain: unpythonic.blogspot.ca, Score: 36, Comments: 15
     On Reddit: [9] http://goo.gl/6UdY8
     Original: [10] http://goo.gl/Y6wli

   * Hackage: unittyped-0.1, an extendable library for type-safe computations 
     including units
     Domain: hackage.haskell.org, Score: 34, Comments: 23
     On Reddit: [11] http://goo.gl/f7b1M
     Original: [12] http://goo.gl/jmZCi

   * Easy JSON parsing in Haskell with Aeson
     Domain: blog.raynes.me, Score: 34, Comments: 18
     On Reddit: [13] http://goo.gl/JERS0
     Original: [14] http://goo.gl/Ccfbm

   * 1st Săo Paulo Haskell Meeting
     Domain: plus.google.com, Score: 29, Comments: 4
     On Reddit: [15] http://goo.gl/MKVPb
     Original: [16] http://goo.gl/yaLUi

   * Conal Elliott: "Parallel speculative addition via memoization"
     Domain: conal.net, Score: 26, Comments: 11
     On Reddit: [17] http://goo.gl/EQZxj
     Original: [18] http://goo.gl/wg0KD

   * Elm: Making the Web Functional [video/slides]
     Domain: infoq.com, Score: 26, Comments: 1
     On Reddit: [19] http://goo.gl/0qAJM
     Original: [20] http://goo.gl/bldR0

   * From traced monoidal to compact closed: geometry of interaction 
     explained with (OCaml) code
     Domain: semantic-domain.blogspot.fr, Score: 18, Comments: 22
     On Reddit: [21] http://goo.gl/auq1p
     Original: [22] http://goo.gl/4XvRw

   * Static Analysis with Applicatives
     Domain: gergo.erdi.hu, Score: 17, Comments: 13
     On Reddit: [23] http://goo.gl/sNLm9
     Original: [24] http://goo.gl/Lvxpn

   * 24 Pull Requests - Does Anyone Have Project Suggestions?
     Domain: self.haskell, Score: 16, Comments: 3
     On Reddit: [25] http://goo.gl/U2bsY
     Original: [26] http://goo.gl/U2bsY

   * what if haskell-platform was a hackage metapackage?
     Domain: self.haskell, Score: 16, Comments: 7
     On Reddit: [27] http://goo.gl/SPIlO
     Original: [28] http://goo.gl/SPIlO

   * Does anyone know if more videos are going to be posted to Haskell Live TV?
     Domain: youtube.com, Score: 15, Comments: 2
     On Reddit: [29] http://goo.gl/jJxWb
     Original: [30] http://goo.gl/NVk3D

   * Data-driven hacks for DB querying — is this evil?
     Domain: hpaste.org, Score: 13, Comments: 22
     On Reddit: [31] http://goo.gl/0J5eJ
     Original: [32] http://goo.gl/gfRLS

   * Why does this result not appear in this search in Hoogle?
     Domain: self.haskell, Score: 12, Comments: 10
     On Reddit: [33] http://goo.gl/DGTu2
     Original: [34] http://goo.gl/DGTu2

Top StackOverflow Questions

   * Is putStrLn thread-safe?
     votes: 12, answers: 1
     Read on SO: [35] http://goo.gl/rjRyN

   * How do you prove that a function is unique for its type?
     votes: 11, answers: 1
     Read on SO: [36] http://goo.gl/odOSy

   * Laziness/strictness between data and newtype
     votes: 10, answers: 2
     Read on SO: [37] http://goo.gl/Dkqv8

   * Why do we use folds to encode datatypes as functions?
     votes: 10, answers: 1
     Read on SO: [38] http://goo.gl/RRVuE

   * Haskell repa - how to reduce array and return index?
     votes: 7, answers: 2
     Read on SO: [39] http://goo.gl/HpXhR

   * How much is applicative really about applying, rather than “combining”?
     votes: 7, answers: 1
     Read on SO: [40] http://goo.gl/zq6j3

   * Why is that not lazy
     votes: 7, answers: 2
     Read on SO: [41] http://goo.gl/F8H0m

   * Biapplicative and Bimonad?
     votes: 6, answers: 1
     Read on SO: [42] http://goo.gl/7C01J

   * reactive-banana-wx `sink` does not generate an event enabling post-sink 
     processing
     votes: 6, answers: 1
     Read on SO: [43] http://goo.gl/pXdTu

   * Expand type synonyms, type families with GHCi
     votes: 6, answers: 1
     Read on SO: [44] http://goo.gl/G6Sks

   * Converting expression to pointfree style (Haskell)
     votes: 6, answers: 1
     Read on SO: [45] http://goo.gl/36gLO

   * ADTs vs. Typeclasses — Canonical use
     votes: 6, answers: 1
     Read on SO: [46] http://goo.gl/ofpbX

   * Haskell: Monitor a file without polling (ŕ la inotify in linux)
     votes: 6, answers: 3
     Read on SO: [47] http://goo.gl/JGzI0

Until next time,
Daniel Santa Cruz

References

   1. http://i.imgur.com/t6hOx.png
   2. http://www.reddit.com/r/haskell/comments/144biy/pretty_output_in_ghci_howto_in_comments/
   3. http://www.yesodweb.com/blog/2012/11/stable-vetted-hackage
   4. http://www.reddit.com/r/haskell/comments/141hww/stable_vetted_hackage_call_for_participation/
   5. http://blog.ezyang.com/2012/11/why-cant-i-just-be-a-little-lazy/
   6. http://www.reddit.com/r/haskell/comments/13tt44/strict_vs_nonstrict_semantics_why_cant_i_just_be/
   7. https://github.com/snapframework/io-streams
   8. http://www.reddit.com/r/haskell/comments/13z9i4/iostream_simple_and_easy_to_use_primitives_for_io/
   9. http://unpythonic.blogspot.ca/2012/11/building-haskell-web-app-with-snap-snap.html
  10. http://www.reddit.com/r/haskell/comments/13sb85/toward_a_secret_sky_building_a_haskell_web_app/
  11. http://hackage.haskell.org/package/unittyped-0.1
  12. http://www.reddit.com/r/haskell/comments/13t795/hackage_unittyped01_an_extendable_library_for/
  13. http://blog.raynes.me/blog/2012/11/27/easy-json-parsing-in-haskell-with-aeson/
  14. http://www.reddit.com/r/haskell/comments/141ch4/easy_json_parsing_in_haskell_with_aeson/
  15. https://plus.google.com/events/cng3rcv1tjl84g2juddk1i36icg
  16. http://www.reddit.com/r/haskell/comments/13vctv/1st_s%C3%A3o_paulo_haskell_meeting/
  17. http://conal.net/blog/posts/parallel-speculative-addition-via-memoization
  18. http://www.reddit.com/r/haskell/comments/13yenz/conal_elliott_parallel_speculative_addition_via/
  19. http://www.infoq.com/presentations/Elm
  20. http://www.reddit.com/r/haskell/comments/1423uc/elm_making_the_web_functional_videoslides/
  21. http://semantic-domain.blogspot.fr/2012/11/in-this-post-ill-show-how-to-turn.html
  22. http://www.reddit.com/r/haskell/comments/13zzxl/from_traced_monoidal_to_compact_closed_geometry/
  23. http://gergo.erdi.hu/blog/2012-12-01-static_analysis_with_applicatives
  24. http://www.reddit.com/r/haskell/comments/143wpd/static_analysis_with_applicatives/
  25. http://www.reddit.com/r/haskell/comments/143c0e/24_pull_requests_does_anyone_have_project/
  26. http://www.reddit.com/r/haskell/comments/143c0e/24_pull_requests_does_anyone_have_project/
  27. http://www.reddit.com/r/haskell/comments/1445jh/what_if_haskellplatform_was_a_hackage_metapackage/
  28. http://www.reddit.com/r/haskell/comments/1445jh/what_if_haskellplatform_was_a_hackage_metapackage/
  29. http://www.youtube.com/user/HaskellLiveTV
  30. http://www.reddit.com/r/haskell/comments/13x0z9/does_anyone_know_if_more_videos_are_going_to_be/
  31. http://hpaste.org/78401
  32. http://www.reddit.com/r/haskell/comments/13xi63/datadriven_hacks_for_db_querying_is_this_evil/
  33. http://www.reddit.com/r/haskell/comments/13r9ii/why_does_this_result_not_appear_in_this_search_in/
  34. http://www.reddit.com/r/haskell/comments/13r9ii/why_does_this_result_not_appear_in_this_search_in/
  35. http://stackoverflow.com/questions/13549706/is-putstrln-thread-safe
  36. http://stackoverflow.com/questions/13575583/how-do-you-prove-that-a-function-is-unique-for-its-type
  37. http://stackoverflow.com/questions/13566673/laziness-strictness-between-data-and-newtype
  38. http://stackoverflow.com/questions/13575894/why-do-we-use-folds-to-encode-datatypes-as-functions
  39. http://stackoverflow.com/questions/13570354/haskell-repa-how-to-reduce-array-and-return-index
  40. http://stackoverflow.com/questions/13625905/how-much-is-applicative-really-about-applying-rather-than-combining
  41. http://stackoverflow.com/questions/13663430/why-is-that-not-lazy
  42. http://stackoverflow.com/questions/13556314/biapplicative-and-bimonad
  43. http://stackoverflow.com/questions/13580121/reactive-banana-wx-sink-does-not-generate-an-event-enabling-post-sink-processi
  44. http://stackoverflow.com/questions/13595773/expand-type-synonyms-type-families-with-ghci
  45. http://stackoverflow.com/questions/13596335/converting-expression-to-pointfree-style-haskell
  46. http://stackoverflow.com/questions/13610164/adts-vs-typeclasses-canonical-use
  47. http://stackoverflow.com/questions/13642619/haskell-monitor-a-file-without-polling-a-la-inotify-in-linux