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.ht... 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_l... 9. http://bos.github.com/criterion/ 10. http://www.reddit.com/r/haskell/comments/mx8vw/criterion_06_produces_shiny_n... 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_traces... 13. http://elm-lang.org/Elm.elm 14. http://www.reddit.com/r/haskell/comments/mwbvj/elm_functional_reactive_webpr... 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_activ... 19. http://groups.google.com/group/stanford-11au-cs240h/browse_thread/thread/410... 20. http://www.reddit.com/r/haskell/comments/mt7nt/fix_f_f_fix_f_vs_fix_f_let_x_... 21. http://www.yesodweb.com/blog/2011/11/cabal-src 22. http://www.reddit.com/r/haskell/comments/mrz9p/announcing_cabalsrc_solve_som... 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_pa... 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_... 29. http://stackoverflow.com/questions/8353845/how-to-write-a-haskell-function-t... 30. http://stackoverflow.com/questions/8307370/functional-lenses 31. http://stackoverflow.com/questions/8359115/haskell-an-example-of-a-foldable-... 32. http://stackoverflow.com/questions/8371499/how-does-incoherentinstances-work 33. http://stackoverflow.com/questions/8320039/minimum-specification-for-haskell... 34. http://stackoverflow.com/questions/8320855/expressive-and-composable-error-t... 35. http://stackoverflow.com/questions/8362998/distributed-haskell-state-of-the-... 36. http://stackoverflow.com/questions/8366518/is-it-possible-to-implement-liftm... 37. http://stackoverflow.com/questions/8367423/are-haskell-flexibleinstances-a-s... 38. http://stackoverflow.com/questions/8296695/is-milner-let-polymorphism-a-rank...