June 2011 - Haskell - Haskell.org

ANNOUNCE: ioctl 0.0.1
by Maciej Piechotka 13 Sep '15

13 Sep '15

A package for type-safe I/O control. Currently only ioctl is supported. Currently simply a extract from my tuntap fork TODO: - Return the integer as well as structure (will break the API) - Port for Windows Network.Socket.IOCtl (as soon as I manage to setup some sane environment on this platform) - Wrapping around DeviceIoControl Example (in hsc): data NotRead = NotRead instance NotRead Int where ioctlReq _ = #const FIONREAD notRead s = ioctlsocket' s NotRead Regards

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Proposal to incorporate Haskell.org
by Don Stewart 16 Dec '11

16 Dec '11

Hello everyone. The haskell.org committee[1], in the interest of the long-term stability of the open source Haskell community infrastructure, has decided to incorporate haskell.org as a legal entity. This email outlines our recommendation, and seeks input from the community on this decision. The committee's proposal is that haskell.org incorporate as an entity under the Software Freedom Conservancy umbrella organization (the same group that Darcs joined recently): http://sfconservancy.org/ If we proceed with this move, haskell.org will be a legal entity, and registered as a non-profit, allowing us to more directly accept (US tax-deductible) donations, and to invest in assets that benefit the Haskell open source community. We welcome your feedback on the proposal attached below. -- Don Stewart (on behalf of the Haskell.org committee) ------------------------------------------------------------------------ = A proposal for the incorporation of Haskell.org = In recent years, haskell.org has started to receive assets, e.g. money from Google Summer Of Code, donations for Hackathons, and a Sparc machine for use in GHC development. We have also started spending this money: in particular, on hosting haskell.org itself. There is also interest in running fundraising drives for specific things such as Hackathon sponsorship and hosting fees. However, haskell.org doesn't currently exist as a legal entity, meaning that these assets have had to be held on our behalf by other entities, such as Galois and various universities. This leads to tricky situations, with no-one being sure who should decide how the haskell.org assets can be used. To solve these problems, we propose that haskell.org applies to become a member project of the Software Freedom Conservancy (SFC) <http://conservancy.softwarefreedom.org/>. The SFC is a non-profit organization that provides free financial and administrative services to open source projects. Additionally, it has 501(c)(3) status, meaning donations from the US are tax-deductible. The SFC would hold haskell.org's money and other assets, and would be able to accept donations on behalf of haskell.org. The haskell.org committee, as described here [2], will make decisions on spending assets and other decisions related to governing the non-profit. Before proceeding, we are inviting input from the community in the form of specific objections or queries regarding the plan. We've tried to answer some of the most likely questions: Q: Does this mean that my Haskell project must now be covered by a copyleft licence such as GPL? A: No, but Haskell projects using haskell.org resource should use an Open Source licence <http://www.opensource.org/licenses/alphabetical>. Q: Will it still be possible to use community.h.o to host non-open-source material, such as academic papers? A: An overall minority of such content, as is the current situation, is not a problem. Q: Will it still be possible to have job ads on the haskell.org mailing lists and website? A: Yes. Q: Will this affect our ability to host the Haskell Symposium <http://www.haskell.org/haskell-symposium/> and Industrial Haskell Group<http://industry.haskell.org/> webpages within haskell.org? A: No. Q: What will be the relationship between haskell.org and other organizations such as the Haskell Symposium and Industrial Haskell Group? A: Those organisations will continue to exist as separate entities. Q: If an umbrella non-profit organisation "The Haskell Foundation" was created, would haskell.org be able to join it? A: Yes. It's likely that in such a scenario, the Haskell Foundation would become the owner of the haskell.org domain name, with the cost divided between the members. The entity that is part of the SFC would be renamed "community.haskell.org" in order to avoid confusion. [1]: http://www.haskell.org/haskellwiki/Haskell.org_committee [2]: http://www.haskell.org/haskellwiki/Haskell.org_committee#Operation

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ANNOUNCING: Hac PDX II - A Portland Haskell Hackathon
by Thomas DuBuisson 30 Jun '11

30 Jun '11

WHAT: A Haskell Hackathon WHEN: July 22-24 (Friday, Saturday, Sunday) 10:00 AM to 5:30 PM WHERE: Forth Avenue Building (FAB, 1900 SW 4th Ave) Room 10 Portland, Oregon 97201 WHERE, take 2: FAB10 is a small auditorium just inside the west most Harrison Street entrance. URL: http://haskell.org/haskellwiki/HacPDX-II WHAT, take 2: HacPDX-II is a Haskell Hackathon where beginners and experts alike can come to work on the Haskell projects of their choice - individually or in groups. If you don't have a project then never fear, come and pick one up or join a group (see the wiki for a list of projects). EQUIPMENT: You should bring a laptop with wireless (802.11). Ethernet is unavailable. Registration: Please RSVP by e-mailing thomas.dubuisson+hacpdx at gmail.com, as well as add your name to the attendees Wiki page (see above URL). Hope to see you there, Thomas

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ANNOUNCE: string-qq-0.0.2
by 唐鳳 30 Jun '11

30 Jun '11

Hi all, I've just released string-qq 0.0.2 to Hackage: http://hackage.haskell.org/package/string-qq The main interface is the "s" quasi-quoter: foo :: IsString a => a foo = [s| This is a multi-line string! |] It allows simple multi-line strings of any IsString type (Text, String, ByteString, etc), with no interpolation at all, except that the leading newline is trimmed and "\r\n" sequences are converted to "\n". It's compatible with both GHC6 and GHC7; for GHC6, write [$s|…|] instead of [s|…|]. Suggestions and feedback are most welcome. :-) Cheers, Audrey

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Haskell Weekly News: Issue 188
by Daniel Santa Cruz 30 Jun '11

30 Jun '11

Welcome to issue 188 of the HWN, a newsletter covering developments in the Haskell community. This release covers the week of June 19 to 25, 2011. It was brought up in cafe this week that some would prefer to see full links in the text version of the mailing list as opposed to the shortened links. The reason behind using shortened links is that the newsletter becomes pretty much unreadable with long links in a plain text buffer. In an effort to accommodate both needs, I'm trying a new format for links. One that includes shorter links embedded throughout the newsletter, and the full reference at the bottom of the text. Let me know what you think! If you are reading this on a mobile device, or you would just rather see the HTML version, point your browser to: http://contemplatecode.blogspot.com/2011/06/haskell-weekly-news-issue-188.h… Announcements Alex Mason wrote in to remind us that AusHac2011 (the Australasian Haskell Hackathon) will be held on July 8-10, at UNSW in Sydney. "If you are an Australian haskell hacker, enthusiast, newbie or professional, we would love to see you there." [2] http://goo.gl/d0SXy Florent Becker announced the release of darcs 2.8 beta 1, with many new beta features. Give it a world and let the devs know how things are working! [3] http://goo.gl/rq3DM Quotes of the Week * <[~functor(a)zygohistomorphic-prepromorphism.endofunctor.org] has joined #haskell * kmc: actually, C++'s "typename" keyword is inspired by INTERCAL's "PLEASE" * Toxaris: #haskell delivers a massively multiprogrammer online functional programming (MMOFP) experience * sully: although I'm switching to haskell more and more just on practical grounds * mauke: the greek letter lambda is an imperfect approximation of the symbol \ * Cale: The trouble with sarcasm is that in order for it to really be effective, the listener has to know what the speaker knows. Otherwise, it's indistinguishable from ignorance. Top Reddit Stories * Haskell's evaluation isn't magic. Domain: netsuperbrain.com, Score: 42, Comments: 33 On Reddit: [4] http://goo.gl/jD8jM Original: [5] http://goo.gl/31pyt * Superclass equalities are now supported Domain: hackage.haskell.org, Score: 40, Comments: 16 On Reddit: [6] http://goo.gl/5PuUh Original: [7] http://goo.gl/XhrMR * Free Monads for Less (Part 1 of 3): Codensity Domain: comonad.com, Score: 35, Comments: On Reddit: [8] http://goo.gl/mqkDi Original: [9] http://goo.gl/9eWLr * Renewed LambdaCube 3D engine, Bullet bindings and Stunts example Domain: just-bottom.blogspot.com, Score: 33, Comments: 2 On Reddit: [10] http://goo.gl/UsP59 Original: [11] http://goo.gl/YR3sH * A new design for haskell.org Domain: chrisdone.com, Score: 31, Comments: 47 On Reddit: [12] http://goo.gl/044JZ Original: [13] http://goo.gl/Hvivh * Free Monads for Less (Part 2 of 3): Yoneda Domain: comonad.com, Score: 25, Comments: On Reddit: [14] http://goo.gl/K6fI9 Original: [15] http://goo.gl/bjV5f * Free Monads for Less (Part 3 of 3): Yielding IO Domain: comonad.com, Score: 24, Comments: On Reddit: [16] http://goo.gl/pKXUR Original: [17] http://goo.gl/EDxzo * Snap Framework v0.5.1 released Domain: snapframework.com, Score: 20, Comments: 2 On Reddit: [18] http://goo.gl/sKsqq Original: [19] http://goo.gl/Chk6j * Comparing FRP to RDP (Reactive Demand Programming) Domain: awelonblue.wordpress.com, Score: 19, Comments: 2 On Reddit: [20] http://goo.gl/0wEgx Original: [21] http://goo.gl/B4dYs * Haskell eDSL Tutorial - Shared expenses Domain: lpenz.org, Score: 18, Comments: 11 On Reddit: [22] http://goo.gl/6yf5j Original: [23] http://goo.gl/t14Xs Top StackOverflow Questions * How do you write data structures that are as efficient as possible in GHC? votes: 26, answers: 2 Read on SO: [24] http://goo.gl/cj18P * How does seq force functions? votes: 15, answers: 1 Read on SO: [25] http://goo.gl/f1TX8 * I/O in Haskell is Functional? votes: 14, answers: 5 Read on SO: [26] http://goo.gl/ZT0HQ * Exponentiation in Haskell votes: 12, answers: 4 Read on SO: [27] http://goo.gl/ueo1A * How to compile a resource into a binary in Haskell? votes: 12, answers: 4 Read on SO: [28] http://goo.gl/mxDPV * Haskell Heap Issues with Parameter Passing Style votes: 12, answers: 2 Read on SO: [29] http://goo.gl/b2m10 * Functor is for (a -> b) -> (f a -> f b), what is for (Category c) => c a b -> c (f a) (f b) ? votes: 12, answers: 1 Read on SO: [30] http://goo.gl/Usv7I * Better way to write the following program in Haskell votes: 12, answers: 7 Read on SO: [31] http://goo.gl/Dn7Xj About the Haskell Weekly News To help create new editions of this newsletter, please send stories to dstcruz(a)gmail.com. Until next time, Daniel Santa Cruz References 1. http://haskell.org 2. http://permalink.gmane.org/gmane.comp.lang.haskell.general/18670 3. http://permalink.gmane.org/gmane.comp.lang.haskell.cafe/90496 4. http://www.reddit.com/r/haskell/comments/i4k3j/haskells_evaluation_isnt_mag… 5. http://netsuperbrain.com/blog/posts/haskells-evaluation-isnt-magic 6. http://www.reddit.com/r/haskell/comments/i6ftr/superclass_equalities_are_no… 7. http://hackage.haskell.org/trac/ghc/ticket/2715#comment:18 8. http://www.reddit.com/r/haskell/comments/i7sy0/free_monads_for_less_part_1_… 9. http://comonad.com/reader/2011/free-monads-for-less/ 10. http://www.reddit.com/r/haskell/comments/i6qi5/renewed_lambdacube_3d_engine… 11. http://just-bottom.blogspot.com/2011/06/renewed-lambdacube-bullet-bindings-… 12. http://www.reddit.com/r/haskell/comments/i9183/a_new_design_for_haskellorg/ 13. http://chrisdone.com/designs/haskell/ 14. http://www.reddit.com/r/haskell/comments/i7v5r/free_monads_for_less_part_2_… 15. http://comonad.com/reader/2011/free-monads-for-less-2/ 16. http://www.reddit.com/r/haskell/comments/i7vho/free_monads_for_less_part_3_… 17. http://comonad.com/reader/2011/free-monads-for-less-3/ 18. http://www.reddit.com/r/haskell/comments/i3odg/snap_framework_v051_released/ 19. http://snapframework.com/blog/2011/06/19/snap-0.5.1-released 20. http://www.reddit.com/r/haskell/comments/i4i5c/comparing_frp_to_rdp_reactiv… 21. http://awelonblue.wordpress.com/2011/05/21/comparing-frp-to-rdp/ 22. http://www.reddit.com/r/haskell/comments/i8ylw/haskell_edsl_tutorial_shared… 23. http://lpenz.org/articles/hedsl-sharedexpenses 24. http://stackoverflow.com/questions/6432284/how-do-you-write-data-structures… 25. http://stackoverflow.com/questions/6442019/how-does-seq-force-functions 26. http://stackoverflow.com/questions/6399702/i-o-in-haskell-is-functional 27. http://stackoverflow.com/questions/6400568/exponentiation-in-haskell 28. http://stackoverflow.com/questions/6402158/how-to-compile-a-resource-into-a… 29. http://stackoverflow.com/questions/6429085/haskell-heap-issues-with-paramet… 30. http://stackoverflow.com/questions/6445501/functor-is-for-a-b-f-a-f-b-what-… 31. http://stackoverflow.com/questions/6476319/better-way-to-write-the-followin…

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Open Call for a Springer LNCS Volume on Resource Analysis
by Ricardo Peña 28 Jun '11

28 Jun '11

*************************************************************************** * * OPEN CALL FOR A SPRINGER LNCS VOLUME ON RESOURCE ANALYSIS * * To be evaluated in conjunction with the selected papers of the 2nd International * Workshop on Foundational and Practical Aspects of Resource Analysis (FOPARA 2011) * May 19th 2011, Madrid, SPAIN * http://dalila.sip.ucm.es/fopara11/ * *************************************************************************** Resource analysis is a live research area where people from several research communities converge. The snd Workshop on Foundational and Practical Aspects of Resource Analysis (FOPARA 2011) covering many of these aspects was held in Madrid on May 2011. See http://dalila.sip.ucm.es/fopara11/ for looking at the program and at the rest of details of this workshop. We want to open the call for selected papers of FOPARA 2011 and invite other researchers in the area to submit papers. The results must be unpublished and not submitted for publication elsewhere. We will publish a volume of the Springer series Lecture Notes in Computer science containing both kinds of selected papers. The Program Committee of the open call will be that of FOPARA 2011. Topics ------ The following list of topics is non-exhaustive: * resource static analysis for embedded or/and critical systems * logical and machine-independent characterisations of complexity classes * logics closely related to complexity classes * type systems for controlling/inferring/checking complexity * semantic methods to analyse resources, including quasi- and sup-interpretations, * practical applications of resource analysis. Submissions ----------- All contributions must be written in English, conform to the Springer LNCS series format and not exceed 16 pages. The submission page is http://www.easychair.org/conferences/?conf=fopara2011 and it can also be accessed through the official FOPARA 2011 website. It will remain open from now to September 5th. Important dates --------------- Submission deadline: September 5th, 2011 Notification to authors: October 24th, 2011 LNCS camera ready deadline: November 18th Expected volume publication: January 2012 Program Committee ----------------- . Puri Arenas (Complutense University of Madrid, ES) . David Aspinall (University of Edinburgh, UK) . David Cachera (IRISA/École normale supérieure de Cachan, FR) . Marko van Eekelen (Radboud University Nijmegen and Open University, NL) . Kevin Hammond (University of St. Andrews, UK) . Martin Hofmann (LMU, Munich, DE) . Tamás Kozsik (Eötvös Loránd University of Budapest, HU) . Hans-Wolfgang Loidl (Heriot-Watt, Edinburgh, UK) . Jean-Yves Marion (Loria, Nancy, FR) . Simone Martini (University of Bologna, IT) . Ricardo Pe~na (PC Chair) (Complutense University of Madrid, ES) . Simona Ronchi della Rocca (University of Turin, IT) . Olha Shkaravska (Radboud University, NL)

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CFP PEPM12: Workshop on Partial Evaluation and Program Manipulation
by oleg＠okmij.org 28 Jun '11

28 Jun '11

ACM SIGPLAN 2012 Workshop on Partial Evaluation and Program Manipulation January 23-24, 2012. Philadelphia, Pennsylvania, USA (co-located with POPL'12) Call For Papers http://www.program-transformation.org/PEPM12 The PEPM Symposium/Workshop series aims to bring together researchers and practitioners working in the broad area of principled program transformation, which spans from refactoring, partial evaluation, supercompilation, fusion and other metaprogramming to model-driven development, program analyses including termination, inductive programming, program generation and applications of machine learning and probabilistic search. PEPM focuses on techniques, supporting theory, tools, and applications of the analysis and manipulation of programs. Each technique or tool of program manipulation should have a clear, although perhaps informal, statement of desired properties, along with an argument how these properties could be achieved. Topics of interest for PEPM'12 include, but are not limited to: - Program and model manipulation techniques such as: supercompilation, partial evaluation, fusion, on-the-fly program adaptation, active libraries, program inversion, slicing, symbolic execution, refactoring, decompilation, and obfuscation. - Program analysis techniques that are used to drive program/model manipulation such as: abstract interpretation, termination checking, binding-time analysis, constraint solving, type systems, automated testing and test case generation. - Techniques that treat programs/models as data objects including metaprogramming, generative programming, embedded domain-specific languages, program synthesis by sketching and inductive programming, staged computation, and model-driven program generation and transformation. - Application of the above techniques including case studies of program manipulation in real-world (industrial, open-source) projects and software development processes, descriptions of robust tools capable of effectively handling realistic applications, benchmarking. Examples of application domains include legacy program understanding and transformation, DSL implementations, visual languages and end-user programming, scientific computing, middleware frameworks and infrastructure needed for distributed and web-based applications, resource-limited computation, and security. To maintain the dynamic and interactive nature of PEPM, we will continue the category of `short papers' for tool demonstrations and for presentations of exciting if not fully polished research, and of interesting academic, industrial and open-source applications that are new or unfamiliar. Student attendants with accepted papers can apply for a SIGPLAN PAC grant to help cover travel expenses and other support. All accepted papers, short papers included, will appear in formal proceedings published by ACM Press. In addition to printed proceedings, accepted papers will be included in the ACM Digital Library. Selected papers may later on be invited for a journal special issue dedicated to PEPM'12. The SIGPLAN Republication Policy and ACM's Policy and Procedures on Plagiarism apply. Submission Categories and Guidelines Authors are strongly encouraged to consult the advice for authoring research papers and tool papers before submitting. The PC Chairs welcome any inquiries about the authoring advice. Regular research papers must not exceed 10 pages in ACM Proceedings style. Short papers are up to 4 pages in ACM Proceedings style. Authors of tool demonstration proposals are expected to present a live demonstration of the described tool at the workshop (tool papers should include an additional appendix of up to 6 extra pages giving the outline, screenshots, examples, etc. to indicate the content of the proposed live demo at the workshop). Important Dates - Paper submission: Mon, October 10, 2011, 23:59, GMT - Author notification: Tue, November 8, 2011 - Workshop: Mon-Tue, January 23-24, 2012 Invited Speakers TBD Program Chairs - Oleg Kiselyov (Monterey, CA, USA) - Simon Thompson (University of Kent, UK) Program Committee Members - Emilie Balland (INRIA, France) - Ewen Denney (NASA Ames Research Center, USA) - Martin Erwig (Oregon State University, USA) - Sebastian Fischer (National Institute of Informatics, Japan) - Lidia Fuentes (Universidad de Malaga, Spain) - John Gallagher (Roskilde University, Denmark and IMDEA Software, Spain) - Dave Herman (Mozilla Labs) - Stefan Holdermans (Vector Fabrics, the Netherlands) - Christian Kaestner (University of Marburg, Germany) - Emanuel Kitzelmann (International Computer Science Institute, USA) - Andrei Klimov (Keldysh Institute of Applied Mathematics, Russian Academy of Sciences) - Shin-Cheng Mu (Academia Sinica, Taiwan) - Alberto Pardo (Universidad de la Repu'blica, Uruguay) - Kostis Sagonas (Uppsala University, Sweden and National Technical University of Athens, Greece) - Anthony M. Sloane (Macquarie University, Australia) - Armando Solar-Lezama (MIT, USA) - Aaron Stump (The University of Iowa, USA) - Kohei Suenaga (University of Kyoto, Japan) - Eric Van Wyk (University of Minnesota, USA) - Kwangkeun Yi (Seoul National University, Korea)

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ANNOUNCE: release v0.2 of RandProc library
by David Banas 27 Jun '11

27 Jun '11

v0.2 of the `RandProc` library has been released to HackageDB. http://hackage.haskell.org/package/randproc Changes in this release: * Improved several severe performance bottlenecks. (The `goodDie` space can now actually be checked, without exhausting memory/time.) * Cleaned up the code, as per `hlint` suggestions.

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~ type operator
by Guy 24 Jun '11

24 Jun '11

What does the ~ type operator mean? I've sometimes seen types such as (a ~ b) in error messages, but can't understand what GHC is trying to tell me. Thanks for any enlightenment!

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Haskell Weekly News: Issue 187
by Daniel Santa Cruz 23 Jun '11

23 Jun '11

Welcome to issue 187 of the HWN, a newsletter covering developments in the Haskell community. This release covers the week of June 12 to 18, 2011. Announcements Ian Lynagh announced a new patchlevel release of GHC (7.0.4). "This release contains a handful of bugfixes relative to 7.0.3, so we recommend upgrading." http://goo.gl/hOvdA Nicolas Wu released the third instance fo Haskell Parallel Digest. Many thanks to Nick and Eric for putting this together. http://goo.gl/s5muy Jeroen Janssen invited us to the 8th Ghent Functional Programming Group Meeting, to be held on Thursday, the 30th of June, in the Technicum building of Ghent University. http://goo.gl/G081Q Quotes of the Week * monochrom: if I were dying to learn covariance, I would not be looking for entertainment, like, I'm dying, I only have 5 minutes to learn covariance, thank you very much * hpc: the categorical dual of a hippomorphism should be a giraffomorphism * ksf: but, as, maybe indeed or not apparently, english, in, or especially in, punctuation matters is an utter mess. * 00:56:03 <benmachine> @faq can haskell tell if I am lagging [...] 00:57:18 <lambdabot> The answer is: Yes! Haskell can do that. Top Reddit Stories * Haskell: the Craft of Functional Programming, 3rd edition is out! Domain: haskellcraft.com, Score: 44, Comments: 10 On Reddit: http://goo.gl/6ZInj Original: http://goo.gl/t0GAX * GHC 7.0.4 is out Domain: haskell.org, Score: 42, Comments: 2 On Reddit: http://goo.gl/oxSJH Original: http://goo.gl/EzWUP * SafeHaskell pushed into GHC Domain: haskell.org, Score: 39, Comments: 5 On Reddit: http://goo.gl/sOrjr Original: http://goo.gl/2Rw56 * Minimum footprint for a GHC program: or, think about your TSOs Domain: stackoverflow.com, Score: 23, Comments: 0 On Reddit: http://goo.gl/eIF0o Original: http://goo.gl/dRgLG * Pieces of Yesod: Inverting a Haskell Function Domain: chplib.wordpress.com, Score: 21, Comments: 8 On Reddit: http://goo.gl/NFJNH Original: http://goo.gl/x2cz2 * The 2011 ICFP contest is starting in just 6 hours! Domain: icfpcontest.org, Score: 20, Comments: 15 On Reddit: http://goo.gl/BS7XI Original: http://goo.gl/oqj0Y * A pattern for avoiding allocation : Inside T5 Domain: blog.ezyang.com, Score: 19, Comments: 12 On Reddit: http://goo.gl/thuRP Original: http://goo.gl/IZCIh * Package of the Day: an improved runghc for fast repeated runs Domain: hackage.haskell.org, Score: 16, Comments: 9 On Reddit: http://goo.gl/k6mQK Original: http://goo.gl/a0DAC * The Supero Supercompiler Domain: community.haskell.org, Score: 16, Comments: 2 On Reddit: http://goo.gl/vBeFO Original: http://goo.gl/3QsmC * Galois Video: Building an Open-Source Autonomous Quad-Copter Domain: corp.galois.com, Score: 15, Comments: 3 On Reddit: http://goo.gl/HZghO Original: http://goo.gl/6AcMw Top StackOverflow Questions * Why does performGC fail to release all memory? votes: 17, answers: 2 Read on SO: http://goo.gl/dRgLG * OSX, ghci, dylib, what is the correct way? votes: 17, answers: 1 Read on SO: http://goo.gl/0s9Tu * Why does Haskell's `head` crash on an empty list (or why *doesn't* it return an empty list)? (Language philosophy) votes: 15, answers: 6 Read on SO: http://goo.gl/tghQR * Towards understanding CodeGen* in the Haskell LLVM bindings votes: 13, answers: 1 Read on SO: http://goo.gl/LPZ2F * What happens to you if you break the monad laws? votes: 13, answers: 3 Read on SO: http://goo.gl/Trvny * Is anyone using delimited continuations to do web development in Haskell? votes: 12, answers: 3 Read on SO: http://goo.gl/hGjuB * The concept of Bottom in Haskell votes: 12, answers: 1 Read on SO: http://goo.gl/9b1ZJ About the Haskell Weekly News To help create new editions of this newsletter, please send stories to dstcruz(a)gmail.com. Until next time, Daniel Santa Cruz

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