[Haskell-cafe] Haskell Weekly News: Issue 193

Daniel Santa Cruz dstcruz at gmail.com
Thu Aug 4 04:24:48 CEST 2011

   Welcome to issue 193 of the HWN, a newsletter covering developments in
   the Haskell community. This release covers the week of July 24 to
   30, 2011.
   [1] http://goo.gl/8hDku

   You can find an HTML rendition of this issue at:


   Wouter Swierstra issued a call for participation to the 16th ACM
   SIGPLAN International Conference on Function Programming (ICFP 2011) to
   be held in Tokyo, Japon on September 19-21, 2011.
   [2] http://goo.gl/ob6Tq

New and Updated Projects

   These projects were announced in the mailing lists:

   * syntactic (Emil Axelsson): Update to version 0.5
     [3] http://goo.gl/sKutg

   * Yi (Jeff Wheeler): Update to version
     [4] http://goo.gl/Tr2Ns

Quotes of the Week

   * sipa: it can optimize non-terminating programs into programs that
     output "<<loop>>" and quit; that's an optimization of infinity% !

   * fazzone: People generally seem to react the same way to "My first
     assembly was x86" as "My dog died" -- "Oh my god, I'm so sorry"

   * [danharaj] I hate myself
     [edwardk] happy to help

   * bos: the number of people who grok rank-K types is inversely
     proportional to ackermann(K)

   * copumpkin: holy shit, I'm unsafeCoerce

   * quicksilver: edwardk had this brilliant idea of how he could
     stress-test our package architecture

   * chrisdone: monoid sounds like a name for a hairless alien species
     that communicates telepathically from star trek

   * [copumpkin] I basically translated repa to agda and made it all
     		 safe n shit. also all slow n shit
     [thoughtpolice] safe n shit,
     		     like, type systems yo

   * theorbtwo: Well, that's one way to respond to ghc having
     overly-long error messages. Just replace all error messges with
     "that's the stupidist shit I've ever heard".

   * acowley: I'm 101% sure I never would have figured it out. I was
     told all hope was lost, then simonmar swung in on his web shooters
     and figured it out

   * quicksilver: agda is an alluring trap for haskell programmers who
     hope to write better code. instead they end up writing no code.

Top Reddit Stories

   * my humble rant about the Haskell learning curve
     Domain: willowbend.cx, Score: 66, Comments: 134
     On Reddit: [5] http://goo.gl/g1buw
     Original: [6] http://goo.gl/3xDxl

   * GHC 7.2.* release candidates are now available
     Domain: haskell.org, Score: 28, Comments: 17
     On Reddit: [7] http://goo.gl/0C0gx
     Original: [8] http://goo.gl/cvec5

   * oleg compares iteratee with python's yield
     Domain: haskell.org, Score: 27, Comments: 12
     On Reddit: [9] http://goo.gl/8YQKq
     Original: [10] http://goo.gl/BafGo

   * Report from HacPDX-II about progress on the new Hackage server
     Domain: well-typed.com, Score: 26, Comments: 0
     On Reddit: [11] http://goo.gl/vBr7N
     Original: [12] http://goo.gl/QXy9a

   * Arrow = Category + Applicative? (Part I)
     Domain: cdsmith.wordpress.com, Score: 26, Comments: 34
     On Reddit: [13] http://goo.gl/Zs5Yg
     Original: [14] http://goo.gl/AsfL1

   * Profunctors in Haskell - A Neighborhood of Infinity
     Domain: blog.sigfpe.com, Score: 19, Comments: 11
     On Reddit: [15] http://goo.gl/58CbB
     Original: [16] http://goo.gl/IKI9H

   * BlockedIndefinitelyOnMVar : Inside 1712B
     Domain: blog.ezyang.com, Score: 19, Comments: 3
     On Reddit: [17] http://goo.gl/3Xtn0
     Original: [18] http://goo.gl/4osPH

   * The Great Yesod Reorganization of 2011
     Domain: yesodweb.com, Score: 18, Comments: 8
     On Reddit: [19] http://goo.gl/ZGNoa
     Original: [20] http://goo.gl/V4buP

   * Is there a Haskell code formatter?
     Domain: stackoverflow.com, Score: 16, Comments: 32
     On Reddit: [21] http://goo.gl/lQOX3
     Original: [22] http://goo.gl/AthoZ

   * Building a Rate of Return System in Haskell – Part 3, Annualized Returns
     Domain: blog.virtucal.com, Score: 9, Comments: 7
     On Reddit: [23] http://goo.gl/0QGPB
     Original: [24] http://goo.gl/R6am5

Top StackOverflow Questions

   * Is there a Haskell code formatter?
     votes: 18, answers: 1
     Read on SO: [25] http://goo.gl/AthoZ

   * Help in understanding pointfree code
     votes: 17, answers: 1
     Read on SO: [26] http://goo.gl/Ryy5c

   * Haskell: What is Weak Head Normal Form?
     votes: 17, answers: 5
     Read on SO: [27] http://goo.gl/3CHAB

   * Understanding GHC assembly output
     votes: 13, answers: 1
     Read on SO: [28] http://goo.gl/ujlve

   * What are Haskell's monad transformers in categorical terms?
     votes: 13, answers: 1
     Read on SO: [29] http://goo.gl/vMPdO

   * Managing a stateful computation system in Haskell
     votes: 12, answers: 1
     Read on SO: [30] http://goo.gl/HABkL

   * Am I using reactive-banana right?
     votes: 11, answers: 1
     Read on SO: [31] http://goo.gl/7jiKr

   * Is there an object-identity-based, thread-safe memoization
library somewhere?
     votes: 11, answers: 2
     Read on SO: [32] http://goo.gl/7vGvl

   * Is there a practical way of using natural numbers in Haskell?
     votes: 11, answers: 2
     Read on SO: [33] http://goo.gl/hJBK9

   * Current state of integrating unit tests with Haskell's Cabal?
     votes: 10, answers: 1
     Read on SO: [34] http://goo.gl/nm8Zc

About the Haskell Weekly News

   To help create new editions of this newsletter, please send stories to
   dstcruz at gmail.com.

   Until next time,
   Daniel Santa Cruz


 1. http://haskell.org/
 2. http://permalink.gmane.org/gmane.comp.science.types.announce/2446
 3. http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/91427
 4. http://permalink.gmane.org/gmane.editors.yi.devel/5550
 5. http://willowbend.cx/2011/07/22/whats-wrong-with-learning-haskell/
 6. http://www.reddit.com/r/haskell/comments/j0say/my_humble_rant_about_the_haskell_learning_curve/
 7. http://www.haskell.org/ghc/dist/7.2.1-rc1/
 8. http://www.reddit.com/r/haskell/comments/j3yly/ghc_72_release_candidates_are_now_available/
 9. http://www.haskell.org/pipermail/haskell-cafe/2011-July/094384.html
10. http://www.reddit.com/r/haskell/comments/j32c4/oleg_compares_iteratee_with_pythons_yield/
11. http://www.well-typed.com/blog/57
12. http://www.reddit.com/r/haskell/comments/iznjs/report_from_hacpdxii_about_progress_on_the_new/
13. http://cdsmith.wordpress.com/2011/07/30/arrow-category-applicative-part-i/
14. http://www.reddit.com/r/haskell/comments/j4h6a/arrow_category_applicative_part_i/
15. http://blog.sigfpe.com/2011/07/profunctors-in-haskell.html
16. http://www.reddit.com/r/haskell/comments/iyima/profunctors_in_haskell_a_neighborhood_of_infinity/
17. http://blog.ezyang.com/2011/07/blockedindefinitelyonmvar/
18. http://www.reddit.com/r/haskell/comments/j1ld6/blockedindefinitelyonmvar_inside_1712b/
19. http://www.yesodweb.com/blog/2011/07/yesod-reorg
20. http://www.reddit.com/r/haskell/comments/iz2ew/the_great_yesod_reorganization_of_2011/
21. http://stackoverflow.com/questions/6870148/is-there-a-haskell-code-formatter
22. http://www.reddit.com/r/haskell/comments/j31f4/is_there_a_haskell_code_formatter/
23. http://blog.virtucal.com/cyclical/2011/7/28/building-a-rate-of-return-system-in-haskell-part-3-annualize.html
24. http://www.reddit.com/r/haskell/comments/j2gyp/building_a_rate_of_return_system_in_haskell_part/
25. http://stackoverflow.com/questions/6870148/is-there-a-haskell-code-formatter
26. http://stackoverflow.com/questions/6797247/help-in-understanding-pointfree-code
27. http://stackoverflow.com/questions/6872898/haskell-what-is-weak-head-normal-form
28. http://stackoverflow.com/questions/6808867/understanding-ghc-assembly-output
29. http://stackoverflow.com/questions/6854303/what-are-haskells-monad-transformers-in-categorical-terms
30. http://stackoverflow.com/questions/6835777/managing-a-stateful-computation-system-in-haskell
31. http://stackoverflow.com/questions/6812533/am-i-using-reactive-banana-right
32. http://stackoverflow.com/questions/6878193/is-there-an-object-identity-based-thread-safe-memoization-library-somewhere
33. http://stackoverflow.com/questions/6884220/is-there-a-practical-way-of-using-natural-numbers-in-haskell
34. http://stackoverflow.com/questions/6787231/current-state-of-integrating-unit-tests-with-haskells-cabal

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