Welcome to issue 216 of the HWN, a newsletter covering crowdsourced links for the Haskell community. This release covers the week of February 12 to 18, 2012. You can find the HTML version at: http://contemplatecode.blogspot.com/2012/02/haskell-weekly-news-issue-216.ht... Quotes of the Week * monochrom: the selfish program's motive is to fool the programmer * WilliamByrd: Oleg is an emissary from some advanced alien race. Working with him is both exhausting and enlightening. * CodeWeaverX: do-block, or do-not-block. There is no try-catch-block. Top Reddit Stories * Where is Hackage 2.0? Domain: self.haskell, Score: 66, Comments: 42 On Reddit: [1] http://goo.gl/uXq10 Original: [2] http://goo.gl/uXq10 * Haskell Performance Patters [HTML slideshow] Domain: blog.johantibell.com, Score: 52, Comments: 13 On Reddit: [3] http://goo.gl/Y5tCb Original: [4] http://goo.gl/T9zZI * Concatenative, Row-Polymorphic Programming in Haskell (re: Why Concatenative Programming Matters) Domain: github.com, Score: 41, Comments: 21 On Reddit: [5] http://goo.gl/0w83b Original: [6] http://goo.gl/aw22p * Neil Mitchell - Shake: A Better Make Domain: neilmitchell.blogspot.com, Score: 37, Comments: 7 On Reddit: [7] http://goo.gl/MeFQ1 Original: [8] http://goo.gl/4HM0d * Why concatenative programming matters. Domain: evincarofautumn.blogspot.com, Score: 37, Comments: 23 On Reddit: [9] http://goo.gl/Udpdt Original: [10] http://goo.gl/VvUvt * GSOC 2012 Project Proposal - GHCi in the web browser Domain: apfelmus.nfshost.com, Score: 36, Comments: 34 On Reddit: [11] http://goo.gl/KS6d8 Original: [12] http://goo.gl/epgTZ * Yesod Blog :: Call for GSoC: expand the reach of Haskell with interactive websites and good persistence Domain: yesodweb.com, Score: 31, Comments: 20 On Reddit: [13] http://goo.gl/1HQ9d Original: [14] http://goo.gl/bxKIC * hxournal - A pen notetaking program written in Haskell Domain: ianwookim.org, Score: 25, Comments: 16 On Reddit: [15] http://goo.gl/4UG5E Original: [16] http://goo.gl/kQOMh * Type checking by theorem proving in IDRIS: Brady [pdf, 29 slides] Domain: cs.st-andrews.ac.uk, Score: 25, Comments: 33 On Reddit: [17] http://goo.gl/qAD5L Original: [18] http://goo.gl/mhdlC * Using Lawvere theories to combine effects Domain: blog.sigfpe.com, Score: 24, Comments: 0 On Reddit: [19] http://goo.gl/4IHq7 Original: [20] http://goo.gl/QS1aO * BayHac '12 Domain: haskell.org, Score: 23, Comments: 0 On Reddit: [21] http://goo.gl/nuxUm Original: [22] http://goo.gl/NCQGy * Hope for Haskell: making Hackage and cabal-install more awesome Domain: github.com, Score: 22, Comments: 23 On Reddit: [23] http://goo.gl/E9MmZ Original: [24] http://goo.gl/sLpkp * Thoughts on Haskell Development Domain: self.haskell, Score: 21, Comments: 77 On Reddit: [25] http://goo.gl/Qdt4b Original: [26] http://goo.gl/Qdt4b * Relating Category Theory to Programming Language Theory - MathOverflow Domain: mathoverflow.net, Score: 21, Comments: 1 On Reddit: [27] http://goo.gl/wA9E2 Original: [28] http://goo.gl/6Ox5n * The Other Prelude — any activity here? It seems like a worthwhile project. Domain: haskell.org, Score: 18, Comments: 13 On Reddit: [29] http://goo.gl/j94fj Original: [30] http://goo.gl/kwGCm Top StackOverflow Questions * Covariance / Contravariance in Haskell? votes: 24, answers: 2 Read on SO: [31] http://goo.gl/wBjaP * Haskell for someone who already knows some category theory votes: 17, answers: 1 Read on SO: [32] http://goo.gl/ms4dE * Haskell libraries overview and their quality [closed] votes: 16, answers: 1 Read on SO: [33] http://goo.gl/H3Rwg * Haskell existential quantification in detail votes: 12, answers: 1 Read on SO: [34] http://goo.gl/uiJZG * Derivative Towers and how to use the vector-space package (haskell) votes: 11, answers: 1 Read on SO: [35] http://goo.gl/lkPEl * Why doesn't Scala have an IO Monad? votes: 10, answers: 1 Read on SO: [36] http://goo.gl/dyTte * How to let a function [a] -> [a] operate on [(a,Int)]? votes: 9, answers: 2 Read on SO: [37] http://goo.gl/Js3As * Speed up runhaskell votes: 9, answers: 4 Read on SO: [38] http://goo.gl/yc3qo * Unnecessary type juggling to define Data.Void (package “void” on Hackage)? votes: 8, answers: 1 Read on SO: [39] http://goo.gl/FCmyv * Lazy vs eager evaluation and double linked list building votes: 8, answers: 3 Read on SO: [40] http://goo.gl/Z55Og Until next time, Daniel Santa Cruz References 1. http://www.reddit.com/r/haskell/comments/pn2oh/where_is_hackage_20/ 2. http://www.reddit.com/r/haskell/comments/pn2oh/where_is_hackage_20/ 3. http://blog.johantibell.com/2012/02/slides-from-haskell-performance.html 4. http://www.reddit.com/r/haskell/comments/pry5h/haskell_performance_patters_h... 5. https://github.com/leonidas/codeblog/blob/master/2012/2012-02-17-concatenati... 6. http://www.reddit.com/r/haskell/comments/ptji8/concatenative_rowpolymorphic_... 7. http://neilmitchell.blogspot.com/2012/02/shake-better-make.html 8. http://www.reddit.com/r/haskell/comments/plv2b/neil_mitchell_shake_a_better_... 9. http://evincarofautumn.blogspot.com/2012/02/why-concatenative-programming-ma... 10. http://www.reddit.com/r/haskell/comments/pmcav/why_concatenative_programming... 11. http://apfelmus.nfshost.com/blog/2012/02/14-summer-of-code-proposal.html 12. http://www.reddit.com/r/haskell/comments/ppdgq/gsoc_2012_project_proposal_gh... 13. http://www.yesodweb.com/blog/2012/02/call-for-gsoc-2012 14. http://www.reddit.com/r/haskell/comments/pqudh/yesod_blog_call_for_gsoc_expa... 15. http://ianwookim.org/hxournal 16. http://www.reddit.com/r/haskell/comments/por66/hxournal_a_pen_notetaking_pro... 17. http://www.cs.st-andrews.ac.uk/~eb/writings/idris-stp.pdf 18. http://www.reddit.com/r/haskell/comments/pp6i3/type_checking_by_theorem_prov... 19. http://blog.sigfpe.com/2012/02/using-lawvere-theories-to-combine.html 20. http://www.reddit.com/r/haskell/comments/pm46y/using_lawvere_theories_to_com... 21. http://www.haskell.org/haskellwiki/BayHac2012 22. http://www.reddit.com/r/haskell/comments/puzxx/bayhac_12/ 23. https://github.com/DanBurton/Blog/blob/master/Markdown/Hope.md 24. http://www.reddit.com/r/haskell/comments/pswbp/hope_for_haskell_making_hacka... 25. http://www.reddit.com/r/haskell/comments/ppf7p/thoughts_on_haskell_developme... 26. http://www.reddit.com/r/haskell/comments/ppf7p/thoughts_on_haskell_developme... 27. http://mathoverflow.net/questions/4235/relating-category-theory-to-programmi... 28. http://www.reddit.com/r/haskell/comments/put1g/relating_category_theory_to_p... 29. http://www.haskell.org/haskellwiki/The_Other_Prelude 30. http://www.reddit.com/r/haskell/comments/ppwst/the_other_prelude_any_activit... 31. http://stackoverflow.com/questions/9302739/covariance-contravariance-in-hask... 32. http://stackoverflow.com/questions/9252488/haskell-for-someone-who-already-k... 33. http://stackoverflow.com/questions/9286799/haskell-libraries-overview-and-th... 34. http://stackoverflow.com/questions/9259921/haskell-existential-quantificatio... 35. http://stackoverflow.com/questions/9313994/derivative-towers-and-how-to-use-... 36. http://stackoverflow.com/questions/9345008/why-doesnt-scala-have-an-io-monad 37. http://stackoverflow.com/questions/9324862/how-to-let-a-function-a-a-operate... 38. http://stackoverflow.com/questions/9326097/speed-up-runhaskell 39. http://stackoverflow.com/questions/9261490/unnecessary-type-juggling-to-defi... 40. http://stackoverflow.com/questions/9277176/lazy-vs-eager-evaluation-and-doub...