Welcome to issue 272 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of June 23 to 29, 2013.

Quotes of the Week

   * kmc: johnw: I'm rejoining this channel after months away just to
     tell you how incredibly wrong you are that monads are the "core
     concept" of Haskell

   * dmwit: semigroups are monoids with an identity crisis

   * olsner: I think doing eta something means to make it more or less
     pointless. But I don't recall which eta does what

   * mm_freak: Oleg knows what's at the end of foldr f z [1..].

   * copumpkin: it's like grasping desperately for the rope of induction
     as you fall down the bottomless pit of coinduction

Top Reddit Stories

   * From zero to cooperative threads in 33 lines of Haskell code
     Domain: haskellforall.com, Score: 78, Comments: 39
     On Reddit: [1] http://goo.gl/rtkrO
     Original: [2] http://goo.gl/wgyAC

   * RSS reader written in Haskell and Ur/Web
     Domain: bazqux.com, Score: 66, Comments: 38
     On Reddit: [3] http://goo.gl/sUw1U
     Original: [4] http://goo.gl/gdh5G

   * FP Haskell Center -- full video demo -- app development, automatic deployment, Git and GitHub integration
     Domain: youtube.com, Score: 64, Comments: 68
     On Reddit: [5] http://goo.gl/gBi5l
     Original: [6] http://goo.gl/TlGL9

   * Building LLVM using Shake
     Domain: neilmitchell.blogspot.ca, Score: 54, Comments: 6
     On Reddit: [7] http://goo.gl/38rWZ
     Original: [8] http://goo.gl/tA5tM

   * Hasochism: The Pleasure and Pain of Dependently Typed Haskell Programming [pdf]
     Domain: personal.cis.strath.ac.uk, Score: 52, Comments: 8
     On Reddit: [9] http://goo.gl/6dDsL
     Original: [10] http://goo.gl/ZZPZL

   * GHC Core by example, episode 1 - Hello Core!
     Domain: alpmestan.com, Score: 46, Comments: 3
     On Reddit: [11] http://goo.gl/iL5ho
     Original: [12] http://goo.gl/mUiO5

   * HPCwire: Lustre Founder Spots Haskell on HPC Horizon
     Domain: hpcwire.com, Score: 36, Comments: 2
     On Reddit: [13] http://goo.gl/h2dmv
     Original: [14] http://goo.gl/1WLf8

   * Adventures in Three Monads - Logic, Prompt, Failure
     Domain: web.mit.edu, Score: 33, Comments: 8
     On Reddit: [15] http://goo.gl/JEOfw
     Original: [16] http://goo.gl/AI5wV

   * Darcs' source code is some of the cleanest Haskell I've read in a while
     Domain: github.com, Score: 32, Comments: 13
     On Reddit: [17] http://goo.gl/TWWMh
     Original: [18] http://goo.gl/fZGE8

   * I accidentally the entire heap: debugging Haskell programs with space leaks
     Domain: bitba.se, Score: 32, Comments: 6
     On Reddit: [19] http://goo.gl/9Vtzy
     Original: [20] http://goo.gl/HCS5N

   * GHCJS introduction – Concurrent Haskell in the browser
     Domain: weblog.luite.com, Score: 30, Comments: 4
     On Reddit: [21] http://goo.gl/Fk8Xd
     Original: [22] http://goo.gl/8CUVT

   * Functional Reactive Web Interfaces with GHCJS and sodium
     Domain: weblog.luite.com, Score: 29, Comments: 12
     On Reddit: [23] http://goo.gl/5QKn0
     Original: [24] http://goo.gl/VpAOv

   * Who Ya Gonna Call? Getting Dirty with Cmm, the GHC backend, and writing new PrimOps with Carter Schonwald (at NY-Haskell)
     Domain: vimeo.com, Score: 26, Comments: 14
     On Reddit: [25] http://goo.gl/wUVcs
     Original: [26] http://goo.gl/cZaGd

   * "Business system" using functional programming?
     Domain: self.haskell, Score: 24, Comments: 44
     On Reddit: [27] http://goo.gl/QcE5P
     Original: [28] http://goo.gl/QcE5P

   * The Resource Applicative
     Domain: haskellforall.com, Score: 23, Comments: 16
     On Reddit: [29] http://goo.gl/G7TIs
     Original: [30] http://goo.gl/4e0Gm


Top StackOverflow Questions

   * What's the conceptual difference between Machines and Conduits (or other similar libraries)?
     votes: 13, answers: 1
     Read on SO: [31] http://goo.gl/hrNMl

   * “inject” progress logging/tracing in haskell computation?
     votes: 13, answers: 2
     Read on SO: [32] http://goo.gl/RdEKU

   * Difference between free monads and fixpoints of functors?
     votes: 12, answers: 0
     Read on SO: [33] http://goo.gl/O3oBi

   * Can Haskell optimize function calls the same way Clang / GCC does?
     votes: 12, answers: 3
     Read on SO: [34] http://goo.gl/Sgf88

   * Trying to figure out `random` function in Haskell
     votes: 10, answers: 3
     Read on SO: [35] http://goo.gl/kcHsi

   * What does !( ) means in data constructor?
     votes: 9, answers: 2
     Read on SO: [36] http://goo.gl/ysnNL

   * Anything prevents optimizing tail-recursion?
     votes: 9, answers: 1
     Read on SO: [37] http://goo.gl/LaTY2

   * Where can I find a good introduction to Haskell optimization passes?
     votes: 9, answers: 1
     Read on SO: [38] http://goo.gl/wMYQH

   * Passing void * through haskell
     votes: 9, answers: 1
     Read on SO: [39] http://goo.gl/Fiu5Q

   * Call main function with arguments
     votes: 9, answers: 2
     Read on SO: [40] http://goo.gl/omwDh

Until next time,
[41]+Daniel Santa Cruz

References

   1. http://www.haskellforall.com/2013/06/from-zero-to-cooperative-threads-in-33.html
   2. http://www.reddit.com/r/haskell/comments/1h0wf7/from_zero_to_cooperative_threads_in_33_lines_of/
   3. https://bazqux.com/
   4. http://www.reddit.com/r/haskell/comments/1ha5dd/rss_reader_written_in_haskell_and_urweb/
   5. http://www.youtube.com/watch?v=cyyDmQKcHMs
   6. http://www.reddit.com/r/haskell/comments/1h7693/fp_haskell_center_full_video_demo_app_development/
   7. http://neilmitchell.blogspot.ca/2013/06/building-llvm-using-shake.html
   8. http://www.reddit.com/r/haskell/comments/1gxaee/building_llvm_using_shake/
   9. https://personal.cis.strath.ac.uk/conor.mcbride/pub/hasochism.pdf
  10. http://www.reddit.com/r/haskell/comments/1gz03w/hasochism_the_pleasure_and_pain_of_dependently/
  11. http://alpmestan.com/2013/06/27/ghc-core-by-example-episode-1/
  12. http://www.reddit.com/r/haskell/comments/1h5ml0/ghc_core_by_example_episode_1_hello_core/
  13. http://www.hpcwire.com/hpcwire/2013-06-24/lustre_founder_spots_haskell_on_hpc_horizon.html
  14. http://www.reddit.com/r/haskell/comments/1h24rv/hpcwire_lustre_founder_spots_haskell_on_hpc/
  15. http://web.mit.edu/~ezyang/Public/threemonads.pdf
  16. http://www.reddit.com/r/haskell/comments/1h1etb/adventures_in_three_monads_logic_prompt_failure/
  17. https://github.com/asperous/darcs_source_code
  18. http://www.reddit.com/r/haskell/comments/1h4rak/darcs_source_code_is_some_of_the_cleanest_haskell/
  19. https://www.bitba.se/i-accidentally-the-entire-heap/
  20. http://www.reddit.com/r/haskell/comments/1h75fa/i_accidentally_the_entire_heap_debugging_haskell/
  21. http://weblog.luite.com/wordpress/?p=14&date=2013-06-03
  22. http://www.reddit.com/r/haskell/comments/1h4s12/ghcjs_introduction_concurrent_haskell_in_the/
  23. http://weblog.luite.com/wordpress/?p=127
  24. http://www.reddit.com/r/haskell/comments/1h795v/functional_reactive_web_interfaces_with_ghcjs_and/
  25. https://vimeo.com/69025829
  26. http://www.reddit.com/r/haskell/comments/1gzmw1/who_ya_gonna_call_getting_dirty_with_cmm_the_ghc/
  27. http://www.reddit.com/r/haskell/comments/1hb4ho/business_system_using_functional_programming/
  28. http://www.reddit.com/r/haskell/comments/1hb4ho/business_system_using_functional_programming/
  29. http://www.haskellforall.com/2013/06/the-resource-applicative.html
  30. http://www.reddit.com/r/haskell/comments/1haums/the_resource_applicative/
  31. http://stackoverflow.com/questions/17281556/whats-the-conceptual-difference-between-machines-and-conduits-or-other-similar
  32. http://stackoverflow.com/questions/17290276/inject-progress-logging-tracing-in-haskell-computation
  33. http://stackoverflow.com/questions/17307416/difference-between-free-monads-and-fixpoints-of-functors
  34. http://stackoverflow.com/questions/17344869/can-haskell-optimize-function-calls-the-same-way-clang-gcc-does
  35. http://stackoverflow.com/questions/17288614/trying-to-figure-out-random-function-in-haskell
  36. http://stackoverflow.com/questions/17336774/what-does-means-in-data-constructor
  37. http://stackoverflow.com/questions/17346161/anything-prevents-optimizing-tail-recursion
  38. http://stackoverflow.com/questions/17354005/where-can-i-find-a-good-introduction-to-haskell-optimization-passes
  39. http://stackoverflow.com/questions/17366776/passing-void-through-haskell
  40. http://stackoverflow.com/questions/17374356/call-main-function-with-arguments
  41. https://plus.google.com/105107667630152149014/about