[Haskell] Haskell Weekly News: Issue 220
Daniel Santa Cruz
dstcruz at gmail.com
Thu Mar 29 04:16:48 CEST 2012
Welcome to issue 220 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers the
week of March 18 to 24, 2012.
Quotes of the Week
* shachaf: Type classes are a scary story that you tell new
Haskellers so they can go to sleep at night.
* acowley: Parametric polymorphism is the inspiring story you tell
them to get them riled up and raring to go.
It's like Braveheart for programmers.
* monochrom: the purpose of types is to ban more programs
* rostayob: I was a type constructor, then I took an arrow in the
kind
* shachaf: @let otherfoolish = not otherwise
* flebron: Monoidal objects in the monoidal category of endofunctors
on a category. I took a small detour through tensor
products to understand monoidal categories better, with
one example of such a product.
mauke: I have no idea what you just said
* weexplat: starts a proposal to replace launchMissiles with
atomicDestroyBiosphere
* monochrom: rumour: SPJ will write a thick book "A New Science of
Kind"
* JonathanShapiro: [on abandoning BitC] "And I *still* don't believe
in monads. :-)"
Top Reddit Stories
* Starting the Mezzo Haskell Book
Domain: yesodweb.com, Score: 58, Comments: 28
On Reddit: [1] http://goo.gl/pOSlR
Original: [2] http://goo.gl/ecy4O
* First patches for iPhone cross compiler against GHC head
Domain: haskell.org, Score: 55, Comments: 27
On Reddit: [3] http://goo.gl/OOAai
Original: [4] http://goo.gl/p7C3L
* Retrospective thoughts on BitC by its author, and why type classes
didn't work for him
Domain: coyotos.org, Score: 44, Comments: 22
On Reddit: [5] http://goo.gl/0sL80
Original: [6] http://goo.gl/5pCp2
* Google Summer of Code 2012 - Haskell.org is participating
Domain: haskell.org, Score: 42, Comments: 11
On Reddit: [7] http://goo.gl/9EwzD
Original: [8] http://goo.gl/XqcUJ
* Conduits vs. Pipes. Using Void as an Input or Output type can reduce
the number of concepts (source, sink, conduit) from 3 to 1 (pipe).
Domain: twanvl.nl, Score: 34, Comments: 50
On Reddit: [9] http://goo.gl/bc8RB
Original: [10] http://goo.gl/eb7oz
* Announcing conduit 0.3
Domain: yesodweb.com, Score: 33, Comments: 9
On Reddit: [11] http://goo.gl/JrgV0
Original: [12] http://goo.gl/OsDl7
* Haskell for embedded domain-specific languages (Functional Programming
eXchange 2012)
Domain: skillsmatter.com, Score: 31, Comments: 4
On Reddit: [13] http://goo.gl/pSREX
Original: [14] http://goo.gl/1azVh
* Domain theory course
Domain: cs.nott.ac.uk, Score: 31, Comments: 5
On Reddit: [15] http://goo.gl/5VHyG
Original: [16] http://goo.gl/o2pRC
* ANNOUNCE: options, an easy-to-use command-line option parser
Domain: self.haskell, Score: 29, Comments: 21
On Reddit: [17] http://goo.gl/s6ktw
Original: [18] http://goo.gl/s6ktw
* A Case Study in Creating Rich Internet Apps in Haskell (Silk at FP
eXchange 2012)
Domain: skillsmatter.com, Score: 22, Comments: 18
On Reddit: [19] http://goo.gl/ZdtDq
Original: [20] http://goo.gl/Ta2HQ
* It just occurred to me that (lift .) defines a functor...
Domain: self.haskell, Score: 22, Comments: 15
On Reddit: [21] http://goo.gl/GMzPt
Original: [22] http://goo.gl/GMzPt
Top StackOverflow Questions
* Haskell platform: nested functions and optimization
votes: 15, answers: 2
Read on SO: [23] http://goo.gl/nreIr
* newtype with RankNTypes
votes: 14, answers: 2
Read on SO: [24] http://goo.gl/UT9DV
* Pattern Matching - Prolog Vs Haskell
votes: 13, answers: 4
Read on SO: [25] http://goo.gl/3hZV1
* How does this definition of ArrowLoop.loop work?
votes: 13, answers: 2
Read on SO: [26] http://goo.gl/ocSCM
* Data.Set : does it always know best?
votes: 12, answers: 2
Read on SO: [27] http://goo.gl/NUjkB
* Building a histogram with haskell, many times slower than with python
votes: 11, answers: 3
Read on SO: [28] http://goo.gl/kbh5i
* What is the scope of let when used without in?
votes: 11, answers: 2
Read on SO: [29] http://goo.gl/bNwna
* Strange "half to even" rounding in different languages [closed]
votes: 11, answers: 3
Read on SO: [30] http://goo.gl/lnPch
* Practical reasons for Сhurch Encoding
votes: 10, answers: 1
Read on SO: [31] http://goo.gl/xYoef
* Can the FFI deal with arrays? If so, how?
votes: 9, answers: 3
Read on SO: [32] http://goo.gl/d4R3H
Until next time,
Daniel Santa Cruz
References
1. http://www.yesodweb.com/blog/2012/03/start-mezzo-haskell
2.
http://www.reddit.com/r/haskell/comments/r9xdq/starting_the_mezzo_haskell_book/
3. http://www.haskell.org/pipermail/iphone/2012-March/000120.html
4.
http://www.reddit.com/r/haskell/comments/r3ge7/first_patches_for_iphone_cross_compiler_against/
5. http://www.coyotos.org/pipermail/bitc-dev/2012-March/003300.html
6.
http://www.reddit.com/r/haskell/comments/rbk7z/retrospective_thoughts_on_bitc_by_its_author_and/
7. http://www.haskell.org/pipermail/haskell-cafe/2012-March/100247.html
8.
http://www.reddit.com/r/haskell/comments/r5h81/google_summer_of_code_2012_haskellorg_is/
9. http://twanvl.nl/blog/haskell/conduits-vs-pipes
10.
http://www.reddit.com/r/haskell/comments/rbgvz/conduits_vs_pipes_using_void_as_an_input_or/
11. http://www.yesodweb.com/blog/2012/03/announcing-conduit-0-3
12. http://www.reddit.com/r/haskell/comments/r6wdh/announcing_conduit_03/
13.
http://skillsmatter.com/podcast/scala/haskell-for-embedded-domain-specific-languages
14.
http://www.reddit.com/r/haskell/comments/r22d6/haskell_for_embedded_domainspecific_languages/
15. http://www.cs.nott.ac.uk/~gmh/domains.html
16. http://www.reddit.com/r/haskell/comments/r250h/domain_theory_course/
17.
http://www.reddit.com/r/haskell/comments/rbpmb/announce_options_an_easytouse_commandline_option/
18.
http://www.reddit.com/r/haskell/comments/rbpmb/announce_options_an_easytouse_commandline_option/
19.
http://skillsmatter.com/podcast/home/silkapp-a-case-study-in-creating-rich-internet-apps-in-haskell/js-3880
20.
http://www.reddit.com/r/haskell/comments/r1xey/a_case_study_in_creating_rich_internet_apps_in/
21.
http://www.reddit.com/r/haskell/comments/raxsk/it_just_occurred_to_me_that_lift_defines_a_functor/
22.
http://www.reddit.com/r/haskell/comments/raxsk/it_just_occurred_to_me_that_lift_defines_a_functor/
23.
http://stackoverflow.com/questions/9757515/haskell-platform-nested-functions-and-optimization
24. http://stackoverflow.com/questions/9779301/newtype-with-rankntypes
25.
http://stackoverflow.com/questions/9780779/pattern-matching-prolog-vs-haskell
26.
http://stackoverflow.com/questions/9856342/how-does-this-definition-of-arrowloop-loop-work
27.
http://stackoverflow.com/questions/9755851/data-set-does-it-always-know-best
28.
http://stackoverflow.com/questions/9772098/building-a-histogram-with-haskell-many-times-slower-than-with-python
29.
http://stackoverflow.com/questions/9777399/what-is-the-scope-of-let-when-used-without-in
30.
http://stackoverflow.com/questions/9829769/strange-half-to-even-rounding-in-different-languages
31.
http://stackoverflow.com/questions/9806729/practical-reasons-for-hurch-encoding
32.
http://stackoverflow.com/questions/9854782/can-the-ffi-deal-with-arrays-if-so-how
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