August 2014 - Haskell

CFP - JSS, Elsevier - Special issue on adaptive and reconfigurable software systems and architectures
by Slim Kallel 22 Aug '14

22 Aug '14

Call for papers =============================== Journal of Systems and Software (JSS, Elsevier) Impact Factor: 1.245 (5-Year Impact Factor: 1.443) Special issue on Adaptive and reconfigurable software systems and architectures =============================== The focal concerns are Service-oriented and component-based software systems, applications and architectures addressing adaptation and reconfiguration issues. Different investigation topics are involved, such as: CBSE, SOA, Functional and Non Functional (NF) requirements (QoS, performance, resilience), monitoring, diagnosis, decision and execution of adaptation and reconfiguration. Different research axes are covered: concepts, methods, techniques, and tools to design, develop, deploy and manage adaptive and reconfigurable software systems. The development of composite services poses very interesting challenges concerning their functional and NF requirements. On the one hand, a composite software system depends on the NF requirements of its constituting components in order to provide a satisfactory service to the user. On the other hand, the main issues for the fulfilment of QoS and service level agreements (SLA) are concerned with performance variability. Indeed, the QoS may evolve frequently, either because of internal changes or because of workload fluctuations. The performance and the robustness of the composite software system may be significantly improved by monitoring the execution of the components and by flexibly reacting to degradation and anomalies in a timely fashion. The concept of adaptive and reconfigurable software systems has been introduced in order to describe architectures, which exhibit such properties. An adaptive and reconfigurable software system can repair itself if any execution problems occur, in order to successfully complete its own execution, while respecting functional and NF agreements. In the design of an adaptive and reconfigurable software system, several aspects have to be considered. For instance, the system should be able to predict or to detect degradations and failures as soon as possible and to enact suitable recovery actions. Moreover, different NF requirements service levels might be considered in order to complete the execution in case of failure. ======= TOPICS ======= The special issue only solicits and accepts papers whose major contributions are within the domain of software engineering. Authors should refer to the highlighted scope of the JSS on the journal homepage for the precise scope of the JSS http://www.journals.elsevier.com/journal-of-systems-and-software/#scope. Contributions are devoted to functional and non-functional adaptability and reconfiguration management in service-oriented and component-based software systems. Specifically, the relevant topics include, but are not limited to: Distributed and centralized collaborative solutions for the diagnosis and repair of software systems Design for the diagnosability and repairability Collaborative Management of NF requirements (quality, security, robustness, availability) Monitoring simple and composite architectures, components and services Semantic (or analytic) architectural and behavioral models for monitoring, planning and deployment of software systems Dynamic reconfiguration of CB and SO software systems architectures Software architecture design and validation for complex systems Scalability management in software systems architectures Collaborative planning and decision-making Collaborative technologies for ensuring autonomic properties Predictive management of adaptability. Collaborative Management of autonomic properties Experiences in practical adaptive and reconfigurable CB and SO applications Tools and prototypes for managing adaptability of CB and SO applications ======= PAPER SUBMISSION ======= Submission deadline: *October 15, 2014* All submissions have to be prepared according to the Guide for Authors as published in the journal website at http://ees.elsevier.com/jss/. Authors should select “SI:AROSA”, from the “Choose Article Type” pull-down menu during the submission process. All contributions must not have been previously published or be under consideration for publication elsewhere. A submission extended from a previous conference version has to contain at least 30% new material. Authors are requested to attach to the submitted paper their relevant, previously published articles and a summary document explaining the enhancements made in the journal version. ======= Guest Editors ======= Khalil Drira( LAAS-CNRS, University of Toulouse, France) Slim Kallel (FSEGS, University of Sfax, Tunisia) Ismael Bouassida Rodriguez(LAAS-CNRS, University of Toulouse, France)

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Haskell Weekly News: Issue 302
by Daniel Santa Cruz 21 Aug '14

21 Aug '14

Welcome to issue 302 of the HWN, an issue covering crowd-sourced bits of information about Haskell from around the web. This issue covers from August 3 to 16, 2014 Quotes of the Week * alpha123: I don't think I have the gonads for monads. :( * edwardk: There is nothing Natural about a Word. * bernalex: I very often have to deal with people who think I'm pretentious for caring about what programming language I use. "it's just programming". lol. sopvop: I used to think the same sopvop: Then haskell corrupted me sopvop: Haskell is a ghetto Top Reddit Stories * ಠ_ಠ :: String -> a Domain: hackage.haskell.org, Score: 122, Comments: 56 Original: [1] http://goo.gl/S87evt On Reddit: [2] http://goo.gl/vsfwgr * An inspiring Haskell story: the green screen of FP Domain: keera.co.uk, Score: 120, Comments: 13 Original: [3] http://goo.gl/z8Aecw On Reddit: [4] http://goo.gl/fevzzz * Haskell Platform 2014.2.0.0 is released Domain: haskell.org, Score: 117, Comments: 56 Original: [5] http://goo.gl/Wc6TAF On Reddit: [6] http://goo.gl/hMPM7F * criterion 1.0: a major new release Domain: serpentine.com, Score: 110, Comments: 13 Original: [7] http://goo.gl/7Qf3ox On Reddit: [8] http://goo.gl/Pa9fCW * What’s a module system good for anyway? Domain: blog.ezyang.com, Score: 102, Comments: 20 Original: [9] http://goo.gl/qtm97E On Reddit: [10] http://goo.gl/XlWrM2 * Easy Haskell Profiling Domain: danielvelkov.blogspot.com, Score: 83, Comments: 33 Original: [11] http://goo.gl/SWdxdC On Reddit: [12] http://goo.gl/z6clxp * Type Theory Podcast: Peter Dybjer on QuickCheck, verification, and semantics Domain: typetheorypodcast.com, Score: 57, Comments: 21 Original: [13] http://goo.gl/jN12Ak On Reddit: [14] http://goo.gl/tLVPpw * Fantasy World Haskell Domain: self.haskell, Score: 52, Comments: 165 Original: [15] http://goo.gl/UmJLhG On Reddit: [16] http://goo.gl/UmJLhG * Haskell for all: managed-1.0.0: A monad for managed resources Domain: haskellforall.com, Score: 51, Comments: 10 Original: [17] http://goo.gl/tbw8JN On Reddit: [18] http://goo.gl/cKB6xZ * Announcing auto-update Domain: yesodweb.com, Score: 47, Comments: 4 Original: [19] http://goo.gl/xhlw04 On Reddit: [20] http://goo.gl/GO6udg * Codeworld: An open-source educational programming environment using Haskell Domain: github.com, Score: 47, Comments: 8 Original: [21] http://goo.gl/7NTgnF On Reddit: [22] http://goo.gl/wJBgw5 * PureScript By Example Domain: leanpub.com, Score: 46, Comments: 25 Original: [23] http://goo.gl/vzcfP6 On Reddit: [24] http://goo.gl/p3gkEB * Lenses from the ground up Domain: taylor.fausak.me, Score: 45, Comments: 43 Original: [25] http://goo.gl/S31V8w On Reddit: [26] http://goo.gl/DAGBPz * Algebraic Terraforming: Trees from Magma Domain: fpcomplete.com, Score: 42, Comments: 22 Original: [27] http://goo.gl/1nGpnz On Reddit: [28] http://goo.gl/iX8ZST * Denotational Design: from meanings to programs By Conal Elliott at BayHac (Video) Domain: youtube.com, Score: 42, Comments: 5 Original: [29] http://goo.gl/rHeDrK On Reddit: [30] http://goo.gl/SLCZ5D * Just LOOK at the humongous type that Hindley-Milner infers for this tiny program! Domain: spacemanaki.com, Score: 38, Comments: 27 Original: [31] http://goo.gl/cAypnJ On Reddit: [32] http://goo.gl/ztDpK7 * Recommended Reading Material Domain: reinh.com, Score: 37, Comments: 12 Original: [33] http://goo.gl/LwGkEr On Reddit: [34] http://goo.gl/ED5pqI * (Monoidal) transducers are monoid homomorphisms Domain: oleksandrmanzyuk.wordpress.com, Score: 37, Comments: 43 Original: [35] http://goo.gl/VPDl6Y On Reddit: [36] http://goo.gl/5RY9Nf * λ Lessons: Pattern matching, first-class functions, and abstracting over recursion in Haskell Domain: stevekrouse.github.io, Score: 36, Comments: 3 Original: [37] http://goo.gl/NkxhS5 On Reddit: [38] http://goo.gl/4275GH Top StackOverflow Questions * What are the problems with an ADT encoding that associates types with data constructors? (Such as Scala.) votes: 41, answers: 1 Read on SO: [39] http://goo.gl/k4bw4R * Why is Haskell missing “obvious” Typeclasses votes: 26, answers: 7 Read on SO: [40] http://goo.gl/2YElO8 * Is there a way to elegantly represent this pattern in Haskell? votes: 22, answers: 6 Read on SO: [41] http://goo.gl/sQdRMt * Why does Scala not have a return/unit function defined for each monad (in contrast to Haskell)? votes: 16, answers: 4 Read on SO: [42] http://goo.gl/MQlZTi * How did Haskell add Turing-completeness to System F? votes: 15, answers: 1 Read on SO: [43] http://goo.gl/weJo4Z * How to avoid superfluous variables in do notation? votes: 14, answers: 2 Read on SO: [44] http://goo.gl/b3IgC5 Until next time, [45]+Daniel Santa Cruz References 1. https://hackage.haskell.org/package/acme-lookofdisapproval-0.1/docs/Acme-Lo… 2. http://www.reddit.com/r/haskell/comments/2dce3d/%E0%B2%A0_%E0%B2%A0_string_… 3. http://keera.co.uk/blog/2014/08/13/most-inspiring-green-screen-you-will-eve… 4. http://www.reddit.com/r/haskell/comments/2djh3b/an_inspiring_haskell_story_… 5. http://www.haskell.org/platform/#2014.2.0.0 6. http://www.reddit.com/r/haskell/comments/2d3p2c/haskell_platform_2014200_is… 7. http://www.serpentine.com/blog/2014/08/08/criterion-1-0/ 8. http://www.reddit.com/r/haskell/comments/2cyuv4/criterion_10_a_major_new_re… 9. http://blog.ezyang.com/2014/08/whats-a-module-system-good-for-anyway/ 10. http://www.reddit.com/r/haskell/comments/2d3xuh/whats_a_module_system_good_… 11. http://danielvelkov.blogspot.com/2014/08/easy-haskell-profiling.html 12. http://www.reddit.com/r/haskell/comments/2d8ob4/easy_haskell_profiling/ 13. http://typetheorypodcast.com/2014/08/episode-1-peter-dybjer-on-type-theory-… 14. http://www.reddit.com/r/haskell/comments/2df24l/type_theory_podcast_peter_d… 15. http://www.reddit.com/r/haskell/comments/2chb2h/fantasy_world_haskell/ 16. http://www.reddit.com/r/haskell/comments/2chb2h/fantasy_world_haskell/ 17. http://www.haskellforall.com/2014/08/managed-100-monad-for-managed-resource… 18. http://www.reddit.com/r/haskell/comments/2d7109/haskell_for_all_managed100_… 19. http://www.yesodweb.com/blog/2014/08/announcing-auto-update 20. http://www.reddit.com/r/haskell/comments/2crqyg/announcing_autoupdate/ 21. https://github.com/google/codeworld 22. http://www.reddit.com/r/haskell/comments/2drcwx/codeworld_an_opensource_edu… 23. https://leanpub.com/purescript/read 24. http://www.reddit.com/r/haskell/comments/2cswdd/purescript_by_example/ 25. http://taylor.fausak.me/2014/08/03/lenses-from-the-ground-up/ 26. http://www.reddit.com/r/haskell/comments/2cl28r/lenses_from_the_ground_up/ 27. https://www.fpcomplete.com/user/bss/magma-tree 28. http://www.reddit.com/r/haskell/comments/2corq6/algebraic_terraforming_tree… 29. https://www.youtube.com/watch?v=zzCrZEil9iI 30. http://www.reddit.com/r/haskell/comments/2dh0sd/denotational_design_from_me… 31. http://spacemanaki.com/blog/2014/08/04/Just-LOOK-at-the-humongous-type/ 32. http://www.reddit.com/r/haskell/comments/2cka6d/just_look_at_the_humongous_… 33. http://reinh.com/notes/posts/2014-07-25-recommended-reading-material.html 34. http://www.reddit.com/r/haskell/comments/2cpr4z/recommended_reading_materia… 35. http://oleksandrmanzyuk.wordpress.com/2014/08/09/transducers-are-monoid-hom… 36. http://www.reddit.com/r/haskell/comments/2d5ael/monoidal_transducers_are_mo… 37. https://stevekrouse.github.io/hs.js/ 38. http://www.reddit.com/r/haskell/comments/2d1dpg/%CE%BB_lessons_pattern_matc… 39. http://stackoverflow.com/questions/25330359/what-are-the-problems-with-an-a… 40. http://stackoverflow.com/questions/25191659/why-is-haskell-missing-obvious-… 41. http://stackoverflow.com/questions/25107101/is-there-a-way-to-elegantly-rep… 42. http://stackoverflow.com/questions/25238622/why-does-scala-not-have-a-retur… 43. http://stackoverflow.com/questions/25255413/how-did-haskell-add-turing-comp… 44. http://stackoverflow.com/questions/25314793/how-to-avoid-superfluous-variab… 45. https://plus.google.com/105107667630152149014/about

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CUFP 2014: Call For Participation
by Edward Kmett 18 Aug '14

18 Aug '14

****************************************************************** CALL FOR PARTICIPATION Commercial Users of Functional Programming (CUFP) 2014 at ICFP 2014; Gothenburg, Sweden, Sep 4-6. ****************************************************************** Overview ======== Functional programming has been at the forefront of a new generation of programming technologies: Companies employing functional programming use it to enable more effective, robust, and flexible software development. The annual CUFP workshop is designed to serve the growing community of commercial users of functional programming: Practitioners meet and collaborate; language designers and users can share ideas about the future of their languages; experts share their expertise on practical functional programming. CUFP 2014 begins with two days of tutorials by top-notch language experts including advanced tutorials on special topics, followed by a day of talks about industrial applications of functional programming. More information about CUFP 2014 is available on the CUFP web site at http://cufp.org/2014/ Registration is available at: https://regmaster4.com/2014conf/ICFP14/register.php TUTORIALS, SEPTEMBER 4 ====================== T1: Programming with Dependent Types Ulf Norell T2: Haskell in the Real World Stefan Wehr T3: Intro to Elm: a field guide for functional front-end programming (Part 1) Evan Czaplicki & Spiros Eliopoulos T4: Elm-d3: Front-end Development without Frameworks (Part 2) Spiros Eliopoulos T5: Idris: Practical Software Verification with Dependent Types Edwin Brady T6: Lens Edward Kmett TUTORIALS, SEPTEMBER 5 ====================== T7: Introduction to OCaml Leo White & Jeremy Yallop T8: Programming in Rust Felix Klock & Lars Bergstrom T9: Tinkering with the Raspberry Pi using Erlang Torben Hoffmann T10: Hands-on Functional Web Development in F# with WebSharper Adam Granicz T11: Batteries Included: Generative Programming with Scala and LMS Tiark Rompf & Nada Amin T12: Introduction to testing with QuickCheck John Hughes TALKS, SEPTEMBER 6 ================== Keynote: Making Money From FP Joe Armstrong, Ericsson and Royal Institute of Technology in Stockholm Functional Programming at Verizon OnCue Timothy Perrett, Verizon Adopting Functional Programming with OCaml at Bloomberg LP Maxime Ransan, Bloomberg LP MBrace: large-scale programming in F# Eirik Tsarpalis, Nessos Probabilistic Synchronization of State Between Independent Nodes Erlend Hamberg Towards "annex", a Fact Based Dependency System Mark Hibberd Building data and time-series analytics tools for F# Tomas Petricek & Howard Mansell Haskell in the Misson Control Domain Michael Oswald Haskell tools for satellite operations Björn Buckwalter F# For Fun and Games Anthony Brown Some usages of functional programming for FO and quants Renaud Bechade Reactive I/O with Scala, Akka, and Play Kenneth Owens, Comcast If your server is a function, is your company a library? Andrew Cowie

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[ANN] BOB 2015: Call for Contributions
by Stefan Wehr 17 Aug '14

17 Aug '14

The BOB conference will have a strong focus on functional programming, so Haskell submissions very welcome. Please consider submitting! BOB Conference 2015 Berlin 23.1.2015 http://bobkonf.de/2015/ CALL FOR CONTRIBUTIONS English: http://bobkonf.de/2015/cfp.html German: http://bobkonf.de/2015/cfp.html Deadline: September 30, 2014 You drive advanced software engineering methods, implement ambitious architectures and are open to cutting-edge innovation? Attend this conference, meet people that share your goals, and get to know the best software tools and technologies available today. We strive to offer you a day full of new experiences and impressions that you can use to immediately improve your daily life as a software developer. If you share our vision and want to contribute, submit a proposal for a talk or tutorial! We are looking for talks about best-of-breed software technology, e.g.: - functional programming - reactive programming - micro-service architectures - persistent data structures and databases - ... everything really that isn't mainstream, but you think should be. Presenters should provide the audience with information that is practically useful for software developers. This could take the form of e.g.: - experience reports - introductory talks on technical background - demos and how-tos We accept proposals for presentations of 45 minutes (40 minutes talk + 5 minutes questions), as well as 90 minute tutorials for beginners. The language of presentation should be either English or German. It should include (in your presentation language of choice): - an abstract of max. 1500 characters. - a short bio/cv - contact information (including at least email) - a list of 3-5 concrete ideas of how your work can be applied in a developer's daily life - additional material (websites, blogs, slides, videos of past presentations, ...) You can submit your proposal using the following form: https://docs.google.com/spreadsheet/viewform?formkey=dHJ0TjR1cEhUWmdBZFVITG… - direct questions to bobkonf at active minus group dot de - proposal deadline: September 30, 2014 - notification: October 15, 2014 - program: October 2014, 2014 NOTE: The conference fee will be waived for presenters, but travel expenses will not be covered. Program Committee - Matthias Fischmann, zerobuzz UG - Matthias Neubauer, SICK AG - Michael Sperber, Active Group - Stefan Wehr, factis research Wissenschaftlicher Beirat - Annette Bieniusa, TU Kaiserslautern - Torsten Grust, Uni Tübingen - Peter Thiemann, Uni Freiburg

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ANNOUNCE: vty 5.2.0 and vty-examples 5.2.0
by Corey O'Connor 16 Aug '14

16 Aug '14

5.2.0 - Corrected handling of Color240 values. - Squashed warnings. Thanks jtdaugherty! - Config structure now specifies file descriptor to use. The default is stdInput and stdOutput file descriptors. Previously Vty used stdInput for input and the follow code for output: - hDuplicate stdout >>= handleToFd >>= (`hSetBuffering` NoBuffering) - the difference was required by Vty.Inline. Now, Vty.Inline uses the Config structure options to acheive the same effect. - removed: derivedVtime, derivedVmin, inputForCurrentTerminal, inputForNameAndIO, outputForCurrentTerminal, outputForNameAndIO - added: inputForConfig, outputForConfig - updates to vty-rogue from jtdaugherty. Thanks! - the oldest version of GHC tested to support vty is 7.4.2 -Corey O'Connor coreyoconnor(a)gmail.com http://corebotllc.com/

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APLAS 2014: Call for Posters and Demo
by Cristian Andrei Gherghina 15 Aug '14

15 Aug '14

?(Apologies for multiple copies.) Call for Posters and Demos: APLAS 2014 12th Asian Symposium on Programming Languages and Systems November 17-19, 2014 Singapore http://www.math.nagoya-u.ac.jp/~garrigue/APLAS2014/ Submission due: 15 September 2014 (Monday), 23:59 GMT Notification: 22 September 2014 (Monday) ========== BACKGROUND ========== APLAS aims to stimulate programming language research by providing a forum for the presentation of latest results and the exchange of ideas in programming languages and systems. APLAS is based in Asia, but is an international forum that serves the worldwide programming language community. APLAS is sponsored by the Asian Association for Foundation of Software (AAFS) founded by Asian researchers in cooperation with many researchers from Europe and the USA. Past APLAS symposiums were successfully held in Melbourne ('13), Kyoto ('12), Kenting ('11), Shanghai ('10), Seoul ('09), Bangalore ('08), Singapore ('07), Sydney ('06), Tsukuba ('05), Taipei ('04) and Beijing ('03) after three informal workshops. APLAS 2014 will include a poster and demo session during the conference. The poster session aims to give students, researchers and professionals an opportunity to present technical materials to the research community, and to get responses from other students, researchers and professionals in the field. ===== SCOPE ===== Poster and demo contributions are sought in all areas of programming languages and systems, including the following topics: - semantics, logics, foundational theory; - design of languages, type systems and foundational calculi; - domain-specific languages; - compilers, interpreters, abstract machines; - program derivation, synthesis and transformation; - program analysis, verification, model-checking; - logic, constraint, probabilistic and quantum programming; - software security; - concurrency and parallelism; - tools and environments for programming and implementation. ========== SUBMISSION ========== Each presenter should submit a 1-2 page abstract in PDF via the submission web page, https://easychair.org/conferences/?conf=aplas2014ps , by 15 September 2014 (Monday), 23:59 GMT. The abstract should include the title, style of the presentation (poster only or poster plus demo), author(s), affiliation(s) and summary of the work. Abstracts must be written in English using the Springer LNCS format. We will announce the accepted presentations on 22 September 2014. We hope to accommodate every presentation, but may restrict them (based on relevance and interest to the community) due to space constraints. The format of the poster will be announced later. =============== IMPORTANT DATES =============== Submission due: 15 September 2014 (Monday), 23:59 GMT Notification: 22 September 2014 (Monday) Conference: 17-19 November 2014 (Monday-Wednesday) ======= CONTACT ======= Poster chair: Cristian Gherghina (SUTD, Singapore) Email: cristian_gherghina(a)sutd.edu.sg ?? This email may contain confidential and/or proprietary information that is exempt from disclosure under applicable law and is intended for receipt and use solely by the addressee(s) named above. If you are not the intended recipient, you are notified that any use, dissemination, distribution, or copying of this email, or any attachment, is strictly prohibited. Please delete the email immediately and inform the sender. Thank You

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ANNOUNCE: wxHaskell 0.91.0.0
by Henk-Jan van Tuyl 12 Aug '14

12 Aug '14

L.S., I am happy to announce a new version of wxHaskell. This version binds to both wxWidgets 2.9 and 3.0 [0]. As wxWidgets 3.0 is significantly better, I advice everyone, who is already using wxHaskell, to upgrade to wxWidgets 3.0.1 What is it? ----------- wxHaskell[1] is a portable and native GUI library for Haskell. The goal of the project is to provide an industrial strength GUI library for Haskell, but without the burden of developing (and maintaining) one ourselves. wxHaskell is therefore built on top of wxWidgets – a comprehensive C++ library that is portable across all major GUI platforms; including GTK, Windows, X11, and MacOS X. Furthermore, it is a mature library (in development since 1992) that supports a wide range of widgets with the native look-and-feel. What's new? ----------- - Accept both wxWidgets 2.9 and 3.0, with a preference for 3.0 - Added bindings for wxGraphicsContext::CreatePath - Use the same custom hook for `cabal copy` in wxc/Setup.hs - Many updates in definitions of constants and some 'deprecated' annotations - samples/wx/TestTaskBarIcon.hs now displays an icon in the taskbar - Parsec.hs can now handle lines starting with "//" properly (package wxdirect) - Fixed build issue that was caused by not having both the 2.9 and 3.0 versions of wxWidgets installed - Made samples/test/STCEvent.hs compilable - Solved warnings about deprecated methods and duplicate constant definition - Added -Wl to options for compiling wxc.dll - Adapted upper limit for packages process and array - Solved "deprecated" warning from GHC 7.8.2 Links ----- See the homepage of wxHaskell for more information: https://www.haskell.org/haskellwiki/WxHaskell The packages are: - wxc https://hackage.haskell.org/package/wxc - wxdirect https://hackage.haskell.org/package/wxdirect - wxcore https://hackage.haskell.org/package/wxcore - wx https://hackage.haskell.org/package/wx Regards, Henk-Jan van Tuyl [0] https://www.wxwidgets.org [1] https://www.haskell.org/haskellwiki/WxHaskell -- Folding@home What if you could share your unused computer power to help find a cure? In just 5 minutes you can join the world's biggest networked computer and get us closer sooner. Watch the video. http://folding.stanford.edu/ http://Van.Tuyl.eu/ http://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming --

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WLP/WFLP - Call for Participation - September 15-17
by Janis Voigtlaender 11 Aug '14

11 Aug '14

Call for Participation 28th Workshop on (Constraint) Logic Programming (WLP 2014) co-located with 23rd International Workshop on Functional and (Constraint) Logic Programming (WFLP 2014) Lutherstadt Wittenberg, Germany, September 15 - 17 Early registration deadline: August 26 The international workshops on functional and logic programming aim at bringing together researchers interested in functional programming, logic programming, as well as their integration. The workshops on (constraint) logic programming serve as the scientific forum of the annual meeting of the Society of Logic Programming (GLP e.V.) and bring together researchers interested in logic programming, constraint programming, and related areas like databases, artificial intelligence, and operations research. Invited Speakers: Michael Hanus: Declarative Multi-paradigm Programming (Tutorial). Sven Thiele: Answer Set Programming for Systems Biology. Accepted Papers and Preliminary Program: http://dbs.informatik.uni-halle.de/wlp14/program.html Registration: http://dbs.informatik.uni-halle.de/wlp14/reg.php Venue: http://www.leucorea.de/leucorea.html (Tagungszentrum) Tourist Information: http://www.wittenberg.de/ We look forward to seeing you in Wittenberg. Stefan Brass (WLP track chair and local organizer) Johannes Waldmann (WFLP track chair)

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Haskell Platform 2014.2.0.0 is Released!
by Mark Lentczner 09 Aug '14

09 Aug '14

On behalf of the Haskell Platform team, I'm happy to announce the release of *Haskell Platform 2014.2.0.0* featuring: GHC 7.8.3 53 packages 860+ public modules 4 tools This release features a major upgrade to OpenGL and GLUT. In addition, "behind the scenes", this release of the platform is produced with a new build system, and many improvements to the installations on all three OS families. Get it now: Download Haskell Platform <http://www.haskell.org/platform/> — for Windows <http://www.haskell.org/platform/windows.html> — for Mac OS X <http://www.haskell.org/platform/mac.html> — for Linux <http://www.haskell.org/platform/linux.html> (and similar systems) N.B.: You may need to explicitly re-fresh those links when visiting in your browser - those pages tend to get cached for very long periods of time. — Mark "platform wrangler" Lentczner P.S.: I realize this one was a long time a'comin'. I take the responsibility for the decisions that lead up to being this late, including deciding it was worth it to wait for GHC 7.8, and that this was the right time to re-write the platform build system. I hope the speed that we can now turn the platform will be evident in future releases. Haskell Platform is created by a team of many hands. Special call out to Randy Polen for the new Windows build, and Yitzchak Gale and Neil Mitchell for help with the new build system. Thanks also to all the intrepid folks that tried out the early alphas and release candidates. Additional help is always welcome!

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Haskell Weekly News: Issue 301
by Daniel Santa Cruz 07 Aug '14

07 Aug '14

Welcome to issue 301 of the HWN, an issue covering crowd-sourced bits of information about Haskell from around the web. This issue covers from July 27 to August 2, 2014 Quotes of the Week * bernalex: I used to have a problem then I used lens now I have an abstraction problem? * trap_exit: haskell is like the 'and they lived happily ever after' of programming languages Top Reddit Stories * The Comonad.Reader » Letter to a Young Haskell Enthusiast Domain: comonad.com, Score: 236, Comments: 56 Original: [1] http://goo.gl/Z5usp3 On Reddit: [2] http://goo.gl/CpPKnC * seL4 is now open source: the world's first end-to-end verified OS kernel Domain: github.com, Score: 87, Comments: 20 Original: [3] http://goo.gl/Uz50bj On Reddit: [4] http://goo.gl/EQK0MQ * FP Haskell Center now free for open projects Domain: fpcomplete.com, Score: 81, Comments: 23 Original: [5] http://goo.gl/ULc9ze On Reddit: [6] http://goo.gl/ZleWCk * -XOverlappingInstances and -XIncoherentInstances to be deprecated Domain: haskell.org, Score: 76, Comments: 64 Original: [7] http://goo.gl/dokkrY On Reddit: [8] http://goo.gl/0AyqA2 * First-Class "Statements": IO as data Domain: blog.jle.im, Score: 68, Comments: 32 Original: [9] http://goo.gl/JNj2D1 On Reddit: [10] http://goo.gl/h1v7yp * Foldable and Traversable in Haskell Domain: blog.jakubarnold.cz, Score: 61, Comments: 30 Original: [11] http://goo.gl/mgI6Mg On Reddit: [12] http://goo.gl/nvwj6j * Minimalist GUI toolkit in GHCi Domain: github.com, Score: 61, Comments: 7 Original: [13] http://goo.gl/9PvsUP On Reddit: [14] http://goo.gl/jQKyG7 * early adopters rejoyce! Haskell Platform 2014.2.0.0 Release Candidate 2 Domain: haskell.org, Score: 48, Comments: 27 Original: [15] http://goo.gl/AGl5po On Reddit: [16] http://goo.gl/ThS3Wc * The Modular, Functional Client Side Domain: stackbuilders.com, Score: 46, Comments: 3 Original: [17] http://goo.gl/eydkfz On Reddit: [18] http://goo.gl/z9q8hE * Beware of bracket Domain: ro-che.info, Score: 46, Comments: 18 Original: [19] http://goo.gl/UYA2mF On Reddit: [20] http://goo.gl/ksMQVV * Real World Haskell: Shipping "Carnival", a Blog Commenting Service Domain: robots.thoughtbot.com, Score: 44, Comments: 5 Original: [21] http://goo.gl/UmPyiL On Reddit: [22] http://goo.gl/4PRdpm * Flee traveller! Flee or you will be corrupted and devoured! Domain: github.com, Score: 41, Comments: 16 Original: [23] http://goo.gl/e3sA6X On Reddit: [24] http://goo.gl/RuAZ4o * Reading files from the /proc filesystem Domain: yesodweb.com, Score: 35, Comments: 4 Original: [25] http://goo.gl/mVfVyM On Reddit: [26] http://goo.gl/Bd2HBT * clckwrks CMS source now on github. A sad farewell to darcs and an optimistic look towards greater contributions from the community. Domain: clckwrks.com, Score: 33, Comments: 31 Original: [27] http://goo.gl/ZLqVWl On Reddit: [28] http://goo.gl/q0za2l * Introduction to GHC.TypeLits with base 4.7, including runtime conversion of symbols. Domain: ponies.io, Score: 32, Comments: 13 Original: [29] http://goo.gl/6FtdyO On Reddit: [30] http://goo.gl/PpmkOc * Converting Make to Shake Domain: neilmitchell.blogspot.com, Score: 23, Comments: 14 Original: [31] http://goo.gl/dOWVhV On Reddit: [32] http://goo.gl/cHYTmS * Learn Snap: Interactive Snap + Heist Examples Domain: learnsnap.chromaticleaves.com, Score: 21, Comments: 14 Original: [33] http://goo.gl/Opwt40 On Reddit: [34] http://goo.gl/06AneL * Hackage: ghc-server: A server interface to GHC. Domain: hackage.haskell.org, Score: 18, Comments: 14 Original: [35] http://goo.gl/ZjhScl On Reddit: [36] http://goo.gl/b9wBfP * Bloggy Badger: Homemade FRP: a study in following the types Domain: gelisam.blogspot.com, Score: 17, Comments: 1 Original: [37] http://goo.gl/T7ujN3 On Reddit: [38] http://goo.gl/HAV1mR Top StackOverflow Questions * IO/Monadic assign operator causing ghci to explode for infinite list votes: 16, answers: 1 Read on SO: [39] http://goo.gl/TC0Snn * A performance conundrum votes: 14, answers: 1 Read on SO: [40] http://goo.gl/b910ez * Does an unused let binding have any effect in Haskell? votes: 12, answers: 3 Read on SO: [41] http://goo.gl/KEl13j * In Haskell, are guards or matchers preferable? votes: 12, answers: 1 Read on SO: [42] http://goo.gl/LiXDjk * If MonadPlus is the “generator” class, then what is the “consumer” class? votes: 12, answers: 2 Read on SO: [43] http://goo.gl/eqRu3a * Why would using head/tail instead of pattern matching make evaluation terminate? votes: 12, answers: 3 Read on SO: [44] http://goo.gl/LOjX0V Until next time, [45]+Daniel Santa Cruz References 1. http://comonad.com/reader/2014/letter-to-a-young-haskell-enthusiast/ 2. http://www.reddit.com/r/haskell/comments/2cbbgf/the_comonadreader_letter_to… 3. https://github.com/seL4/seL4 4. http://www.reddit.com/r/haskell/comments/2c1bnp/sel4_is_now_open_source_the… 5. https://www.fpcomplete.com/business/blog/fp-haskell-center-going-free/ 6. http://www.reddit.com/r/haskell/comments/2c9u0g/fp_haskell_center_now_free_… 7. http://www.haskell.org/pipermail/ghc-devs/2014-July/005830.html 8. http://www.reddit.com/r/haskell/comments/2c136i/xoverlappinginstances_and_x… 9. http://blog.jle.im/entry/first-class-statements 10. http://www.reddit.com/r/haskell/comments/2byuhj/firstclass_statements_io_as… 11. http://blog.jakubarnold.cz/2014/07/30/foldable-and-traversable.html 12. http://www.reddit.com/r/haskell/comments/2c8b87/foldable_and_traversable_in… 13. https://github.com/divipp/lensref/wiki 14. http://www.reddit.com/r/haskell/comments/2cge6f/minimalist_gui_toolkit_in_g… 15. http://www.haskell.org/pipermail/haskell/2014-July/024276.html 16. http://www.reddit.com/r/haskell/comments/2c0ep4/early_adopters_rejoyce_hask… 17. http://www.stackbuilders.com/news/the-modular-functional-client-side 18. http://www.reddit.com/r/haskell/comments/2c21j0/the_modular_functional_clie… 19. http://ro-che.info/articles/2014-07-30-bracket.html 20. http://www.reddit.com/r/haskell/comments/2c4li4/beware_of_bracket/ 21. http://robots.thoughtbot.com/ship-you-a-haskell 22. http://www.reddit.com/r/haskell/comments/2cfdms/real_world_haskell_shipping… 23. https://github.com/haskell/bytestring/blob/2530b1c28f15d0f320a84701bf507d56… 24. http://www.reddit.com/r/haskell/comments/2cbgpz/flee_traveller_flee_or_you_… 25. http://www.yesodweb.com/blog/2014/07/reading-files-proc-filesystem 26. http://www.reddit.com/r/haskell/comments/2buufk/reading_files_from_the_proc… 27. http://www.clckwrks.com/page/view-page-slug/12/clckwrks-now-on-github 28. http://www.reddit.com/r/haskell/comments/2cd26w/clckwrks_cms_source_now_on_… 29. http://ponies.io/posts/2014-07-30-typelits.html 30. http://www.reddit.com/r/haskell/comments/2c8bfi/introduction_to_ghctypelits… 31. http://neilmitchell.blogspot.com/2014/07/converting-make-to-shake.html 32. http://www.reddit.com/r/haskell/comments/2bukaj/converting_make_to_shake/ 33. http://learnsnap.chromaticleaves.com/ 34. http://www.reddit.com/r/haskell/comments/2cdc36/learn_snap_interactive_snap… 35. http://hackage.haskell.org/package/ghc-server-1.0 36. http://www.reddit.com/r/haskell/comments/2c17zz/hackage_ghcserver_a_server_… 37. http://gelisam.blogspot.com/2014/07/homemade-frp-study-in-following-types.h… 38. http://www.reddit.com/r/haskell/comments/2c0vg4/bloggy_badger_homemade_frp_… 39. http://stackoverflow.com/questions/24986296/io-monadic-assign-operator-caus… 40. http://stackoverflow.com/questions/25089668/a-performance-conundrum 41. http://stackoverflow.com/questions/24984661/does-an-unused-let-binding-have… 42. http://stackoverflow.com/questions/25000929/in-haskell-are-guards-or-matche… 43. http://stackoverflow.com/questions/25070740/if-monadplus-is-the-generator-c… 44. http://stackoverflow.com/questions/25078598/why-would-using-head-tail-inste… 45. https://plus.google.com/105107667630152149014/about

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