April 2016 - Haskell - Haskell.org

Call for Contributions - Haskell Communities and Activities Report, May 2016 edition (30th edition)
by Mihai Maruseac 01 May '16

01 May '16

Dear all, It's that time of the year again (https://ro-che.info/ccc/16) :) We would like to collect contributions for the 30th edition of the ============================================================ Haskell Communities & Activities Report http://www.haskell.org/haskellwiki/Haskell_Communities_and_Activities_Report Submission deadline: 30 April 2016 ============================================================ The short story follows: * If you are working on _any_ project that is in some way related to Haskell, please write a short entry and submit it. Even if the project is small, unfinished or used only by yourself or you think it is not important enough, please reconsider and submit an entry anyway! * The submission file can be in _any_ format you like. Although the final report uses LaTeX, if it is easier for you to submit a Markdown file, text file, Doc file or anything else, please do so. We'll be happy to do the translation and get a new entry in the HCAR :) * If you are interested in an existing project related to Haskell that has not previously been mentioned in the HCAR, please tell me or contact a project leader to get them to submit an entry. We have received feedback in the past that some projects were missing from the edition, but, sadly, that was too late at the time, but those projects will be contacted for this edition. * Feel free to pass on this call for contribution to others that might be interested. More detailed information: The Haskell Communities & Activities Report is a bi-annual overview of the state of Haskell as well as Haskell-related projects over the last, and possibly the upcoming six months. If you have only recently been exposed to Haskell, it might be a good idea to browse the previous edition --- you will find interesting projects described as well as several starting points and links that may provide answers to many questions. Contributions will be collected until the submission deadline. They will then be compiled into a coherent report that is published online as soon as it is ready. As always, this is a great opportunity to update your webpages, make new releases, announce or even start new projects, or to talk about developments you want every Haskeller to know about! Looking forward to your contributions, Mihai FAQ: Q: What format should I write in? A: The recommeneded format is a LaTeX source file, adhering to the template that is available at: http://haskell.org/communities/05-2016/template.tex There is also a LaTeX style file at http://haskell.org/communities/06-2016/hcar.sty that you can use to preview your entry. If you modify an old entry that you have written for an earlier edition of the report, you should soon receive your old entry as a template (provided we have your valid email address). Please modify that template, rather than using your own version of the old entry as a template. _However_, if you don't want/have time to format the entry for LaTeX, you can submit it in any other format possible and we will be happy to convert it for the final report. Q: Can I include Haskell code? A: Yes. Please use lhs2tex syntax (http://www.andres-loeh.de/lhs2tex/) The report is compiled in mode polycode.fmt. Q: Can I include images? A: Yes, you are even encouraged to do so. Please use .jpg or .png format, then, PNG being preferred for simplicity. Q: How much should I write? A: Authors are asked to limit entries to about one column of text. A general introduction is helpful. Apart from that, you should focus on recent or upcoming developments. Pointers to online content can be given for more comprehensive or "historic" overviews of a project. Images do not count towards the length limit, so you may want to use this opportunity to pep up entries. There is no minimum length of an entry! The report aims for being as complete as possible, so please consider writing an entry, even if it is only a few lines long. Q: Which topics are relevant? A: All topics which are related to Haskell in some way are relevant. We usually had reports from users of Haskell (private, academic, or commercial), from authors or contributors to projects related to Haskell, from people working on the Haskell language, libraries, on language extensions or variants. We also like reports about distributions of Haskell software, Haskell infrastructure, books and tutorials on Haskell. Reports on past and upcoming events related to Haskell are also relevant. Finally, there might be new topics we do not even think about. As a rule of thumb: if in doubt, then it probably is relevant and has a place in the HCAR. You can also simply ask us. Q: Is unfinished work relevant? Are ideas for projects relevant? A: Yes! You can use the HCAR to talk about projects you are currently working on. You can use it to look for other developers that might help you. You can use HCAR to ask for more contributors to your project, it is a good way to gain visibility and traction. Q: If I do not update my entry, but want to keep it in the report, what should I do? A: Tell us that there are no changes. The old entry will typically be reused in this case, but it might be dropped if it is older than a year, to give more room and more attention to projects that change a lot. Do not resend complete entries if you have not changed them. Q: Will I get confirmation if I send an entry? How do I know whether my email has even reached its destination, and not ended up in a spam folder? A: Prior to publication of the final report, we will send a draft to all contributors, for possible corrections. So if you do not hear from us within two weeks after the deadline, it is safer to send another mail and check whether your first one was received. -- Mihai Maruseac (MM) "If you can't solve a problem, then there's an easier problem you can solve: find it." -- George Polya

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LOPSTR 2016 Call for Papers
by Manuel Hermenegildo 30 Apr '16

30 Apr '16

====================================================================== LOPSTR 2016: 1st Call for Papers ====================================================================== 26th International Symposium on Logic-Based Program Synthesis and Transformation LOPSTR 2016 http://cliplab.org/Conferences/LOPSTR16/ Edinburgh, UK, September 6-8, 2016 (co-located with PPDP 2016 and SAS 2016) ====================================================================== DEADLINES: Abstract submission: June 7, 2016 Paper/Extended abstract submission: June 14, 2016 ====================================================================== The aim of the LOPSTR series is to stimulate and promote international research and collaboration on logic-based program development. LOPSTR is open to contributions in logic-based program development in any language paradigm. LOPSTR has a reputation for being a lively, friendly forum for presenting and discussing work in progress. Formal proceedings are produced only after the symposium so that authors can incorporate this feedback in the published papers. The 26th International Symposium on Logic-based Program Synthesis and Transformation (LOPSTR 2016) will be held at the University of Edinburgh, Edinburgh, UK; previous symposia were held in Siena, Canterbury, Madrid, Leuven, Odense, Hagenberg, Coimbra, Valencia, Lyngby, Venice, London, Verona, Uppsala, Madrid, Paphos, London, Venice, Manchester, Leuven, Stockholm, Arnhem, Pisa, Louvain-la-Neuve, and Manchester. LOPSTR 2016 will be co-located with PPDP 2016 (International Symposium on Principles and Practice of Declarative Programming) and SAS 2016 (Static Analysis Symposium). Topics of interest cover all aspects of logic-based program development, all stages of the software life cycle, and issues of both programming-in-the-small and programming-in-the-large. Both full papers and extended abstracts describing applications in these areas are especially welcome. Contributions are welcome on all aspects of logic-based program development, including, but not limited to: * synthesis * transformation * specialization * composition * optimization * inversion * specification * analysis and verification * testing and certification * program and model manipulation * transformational techniques in SE * applications and tools Survey papers that present some aspects of the above topics from a new perspective, and application papers that describe experience with industrial applications are also welcome. Papers must describe original work, be written and presented in English, and must not substantially overlap with papers that have been published or that are simultaneously submitted to a journal, conference, or workshop with refereed proceedings. Work that already appeared in unpublished or informally published workshop proceedings may be submitted (please contact the PC chair in case of questions). Important Dates Abstract submission: June 7, 2016 Paper/Extended abstract submission: June 14, 2016 Notification: August 3, 2016 Camera-ready (for electronic pre-proceedings): August 19, 2016 Symposium: September 6-8, 2016 Submission Guidelines Authors should submit an electronic copy of the paper (written in English) in PDF, formatted in the Lecture Notes in Computer Science style. Each submission must include on its first page the paper title; authors and their affiliations; contact author's email; abstract; and three to four keywords which will be used to assist the PC in selecting appropriate reviewers for the paper. Page numbers (and, if possible, line numbers) should appear on the manuscript to help the reviewers in writing their report. Submissions cannot exceed 15 pages including references but excluding well-marked appendices not intended for publication. Reviewers are not required to read the appendices, and thus papers should be intelligible without them. Papers should be submitted via the Easychair submission website for LOPSTR 2016: http://www.easychair.org/conferences/?conf=lopstr2016 (can be accessed also through the LOPSTR 2016 web site). Proceedings The formal post-conference proceedings will be published by Springer in the Lecture Notes in Computer Science series. Full papers can be directly accepted for publication in the formal proceedings, or accepted only for presentation at the symposium and inclusion in informal proceedings. After the symposium, all authors of extended abstracts and full papers accepted only for presentation will be invited to revise and/or extend their submissions in the light of the feedback solicited at the symposium. Then, after another round of reviewing, these revised papers may also be published in the formal proceedings. Program Committee Slim Abdennadher, German University of Cairo, Egypt Maria Alpuente, Universitat Politecnica de Valencia, Spain Sergio Antoy, Portland State University, USA Michael Codish, Ben-Gurion University of the Negev, Israel Jerome Feret, CNRS/ENS/INRIA Paris, France. Fabio Fioravanti, University of Chieti - Pescara, Italy. Maurizio Gabbrielli, University of Bologna, Italy Maria Garcia de la Banda, Monash University, Australia Robert Glueck, University of Copenhagen, Denmark. Miguel Gomez-Zamalloa, Complutense University of Madrid, Spain Gopal Gupta, University of Texas at Dallas, USA Patricia Hill, Univ. of Leeds, UK Jacob Howe, City University London, UK Viktor Kuncak , EPFL Lausanne, Switzerland Michael Leuschel, University of Duesseldorf, Germany Heiko Mantel TU Darmstadt, Germany Jorge A. Navas, NASA, USA Naoki Nishida, Nagoya University, Japan Catuscia Palamidessi, INRIA Saclay and LIX, France C.R. Ramakrishnan, SUNY Stony Brook, USA Vitor Santos Costa, Universidade do Porto, Portugal Hirohisa Seki, Nagoya Institute of Technology, Japan Peter Schneider-Kamp, University of Southern Denmark, Denmark Program Chairs Manuel Hermenegildo, IMDEA Software Institute and T.U. Madrid (UPM) Pedro Lopez-Garcia, IMDEA Software Institute and CSIC Organizing Committee James Cheney (University of Edinburgh, Local Organizer) Moreno Falaschi (University of Siena, Italy) -----------------------------------------------------------------------------

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Final Call for Papers: Special Issue of the SCP on Automated Verification of Critical Systems
by Lin, Yuhui 29 Apr '16

29 Apr '16

Final Call for Papers (*** submission deadline in 3 weeks!!! ***) Science of Computer Programming Special Issue on Automated Verification of Critical Systems Guest editors: Gudmund Grov & Andrew Ireland Submission deadline: 20 May 2016 Notification: 31 August 2016 This special issue is devoted to the 15th international workshop on Automated Verification of Critical Systems (AVoCS 2015): https://sites.google.com/site/avocs15/ The aim of AVoCS is to contribute to the interaction and exchange of ideas among members of the international research community on tools and techniques for the verification of critical systems. These topics are to be interpreted broadly and inclusively. It covers all aspects of automated verification, and typical (but not exclusive) topics of interest are: - Model Checking - Automatic and Interactive Theorem Proving - SAT, SMT or Constraint Solving for Verification - Abstract Interpretation - Specification and Refinement - Requirements Capture and Analysis - Verification of Software and Hardware - Specification and Verification of Fault Tolerance and Resilience - Probabilistic and Real-Time Systems - Dependable Systems - Verified System Development - Industrial Applications Submission to this special issue is open. We expect original articles (typically 20-30 pages) that present high-quality contributions, have not been previously published in an archival venue and that must not be simultaneously submitted for publication elsewhere. Submissions must be written in English and comply with SCP's author guidelines http://www.elsevier.com/wps/find/journaldescription.cws_home/505623/authori… Submission is over the SCP website: http://ees.elsevier.com/scico/default.asp which you will have to register for if you do not have an account. When submitting your paper please choose the article type "Special issue: AVoCS 2015". Please send any queries you may have to Gudmund Grov (G.Grov(a)hw.ac.uk)

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ANN: Haskell Prime 2020 committee has formed
by Herbert Valerio Riedel 28 Apr '16

28 Apr '16

Dear Haskell Community! Some time ago I asked for nominations to reboot the Haskell Prime process[1], and now I'm pleased to finally announce the formation of the new Haskell Language 2020 Committee! The goal of the Haskell Language committee together with the Core Libraries Committee is to work towards a new Haskell 2020 Language Report. I'd like to remind everyone that the Haskell Prime Process[4] relies on *everyone* in the community to help by contributing proposals which the committee will then evaluate and if suitable help formalise for inclusion. Everyone interested in participating is also invited to join the haskell-prime mailing list. Four years (or rather ~3.5 years) from now may seem like a long time. However, given the magnitude of the task at hand, to discuss, formalise, and implement proposed extensions (taking into account the recently enacted three-release-policy[3]) to the Haskell Report, the process shouldn't be rushed. Consequently, this may even turn out to be a tight schedule after all. However, it's not excluded there may be an interim revision of the Haskell Report before 2020. Based on this schedule, GHC 8.8 (likely to be released early 2020) would be the first GHC release to feature Haskell 2020 compliance. Prior GHC releases may be able to provide varying degree of conformance to drafts of the upcoming Haskell 2020 Report. The Haskell Language 2020 committee starts out with 20 members which contribute a diversified skill-set. These initial members also represent the Haskell community from the perspective of practitioners, implementers, educators, and researchers. - Andres Löh - Antonio Nikishaev - Austin Seipp - Carlos Camarao de Figueiredo - Carter Schonwald - David Luposchainsky - Henk-Jan van Tuyl - Henrik Nilsson - Herbert Valerio Riedel - Iavor Diatchki - John Wiegley - José Manuel Calderón Trilla - Jurriaan Hage - Lennart Augustsson - M Farkas-Dyck - Mario Blažević - Nicolas Wu - Richard Eisenberg - Vitaly Bragilevsky - Wren Romano The Haskell 2020 committee is a language committee; it will focus its efforts on specifying the Haskell language itself. Responsibility for the libraries laid out in the Report is left to the Core Libraries Committee (CLC)[5]. Incidentally, the CLC still has an available seat[2]; if you would like to contribute to the Haskell 2020 Core Libraries you are encouraged to apply for this opening. As this is a general announcement broadcasted to multiple mailing lists, a separate email discussing the next steps of the new committee will be sent to the haskell-prime mailing list shortly. [1]: https://mail.haskell.org/pipermail/haskell-prime/2015-September/003936.html [2]: https://mail.haskell.org/pipermail/libraries/2015-November/026497.html [3]: https://prime.haskell.org/wiki/Libraries/3-Release-Policy [4]: https://prime.haskell.org/wiki/Process [5]: https://prime.haskell.org/wiki/Libraries -- hvr

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Summer of Haskell - Now Accepting Applications!
by Gershom B 27 Apr '16

27 Apr '16

(Note: I am posting this on behalf of Edward Kmett who has spotty availability at the moment) We've posted an official Summer of Haskell website: https://summer.haskell.org/ It contains the full timeline for the program this summer, and most importantly, a form for submitting student applications, also linked here: https://docs.google.com/forms/d/1JLIa58u7AcWN31bH_LcCBujN9uzAwfd3HxrT32qz9_… The student application period ends next Friday, May 6. Last year we had a very successful project brainstorming thread. This led to our largest and most successful Summer of Code, ever. There is a thread on reddit now devoted to the purpose of further brainstorming for this year: https://www.reddit.com/r/haskell/comments/4gh1tu/summer_of_haskell_now_acce… If you have a proposal that you think a student could make a good dent in over the course of a summer, especially one with broad impact on the community, please feel free to discuss it there. If you are a potential student, please feel free to skim the proposals for ideas, or put forth ones of your own! If you are a potential mentor, please feel free to comment on proposals that interest you, put forth ideas looking for students and express your interest, to help us pair up potential students with potential mentors. Ultimately, the project proposals that are submitted get written by students, but if we can give a good sense of direction for what the community wants out of the summer, we can improve the quality of proposals, and we can recruit good mentors to work with good students on good projects. Resources: We have a wiki on https://ghc.haskell.org/trac/summer-of-code/ It is, of course, a Wiki, so if you see something out of order, take a whack at fixing it. We have an active #haskell-gsoc channel on irc.freenode.net that we run throughout the summer. Potential mentors and students alike are welcome. We have a Trac full of suggested Google Summer of Code proposals both current and from years past, but it could use a whole lot of eyeballs and an infusion of fresh ideas: https://ghc.haskell.org/trac/summer-of-code/report/1 Many of our best proposals in years have come from lists of project suggestions that others have blogged about. Many of our best students decided to join the summer of code based on these posts. The Trac isn't the only source of information on interesting projects, and I'd encourage folks to continue posting their ideas. If you or your employer would be interested in helping to fund additional students, please feel free to reach out to me. Thank you, -Edward Kmett

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[ANN] Erlang Workshop 2016 - CFP
by Erlang Workshop 26 Apr '16

26 Apr '16

Apologies for any duplicates you may receive. CALL FOR PAPERS =============== Fifteenth ACM SIGPLAN Erlang Workshop ------------------------------ ----------------------------- Nara, Japan, September 23, 2016 Satellite event of the 21st ACM SIGPLAN International Conference on Functional Programming (ICFP 2016) September 18-24, 2016 The Erlang Workshop aims to bring together the open source, academic, and industrial communities of Erlang, to discuss technologies and languages related to Erlang. The Erlang model of concurrent programming has been widely emulated, for example by Akka in Scala, and even new programming languages were designed atop of the Erlang VM, such as Elixir. Therefore we would like to broaden the scope of the workshop to include systems like those mentioned above. The workshop will enable participants to familiarize themselves with recent developments on new techniques and tools, novel applications, draw lessons from users' experiences and identify research problems and common areas relevant to the practice of Erlang, Erlang-like languages, functional programming, distribution, concurrency etc. We invite three types of submissions. 1. Technical papers describing interesting contributions either in theoretical work or real world applications. Submission related to Erlang, Elixir, Akka, CloudHaskell, Occam, and functional programming are welcome and encouraged. Topics of interest include (but are not limited to): - virtual machine extensions and compilation techniques - implementations and interfaces of Erlang in/with other languages - new tools (profilers, tracers, debuggers, testing frameworks etc.) - language extensions - formal semantics, correctness and verification - testing Erlang programs - program analysis and transformation - Erlang-like languages and technologies - functional languages and multi-processing - concurrency in functional languages - functional languages and distributed computing - parallel programming - pattern based programming - Erlang in education The maximum length for technical papers is restricted to 12 pages. 2. Experience reports describing uses of Erlang in the "real-world", Erlang libraries for specific tasks, experiences from using Erlang in specific application domains, reusable programming idioms and elegant new ways of using Erlang to approach or solve a particular problem. The maximum length for the experience report is restricted to 2 pages. 3. Poster presentations describing topics related to the workshop goals. Each includes a maximum of 2 pages of the abstract and summary. Presentations in this category will be given an hour of shared simultaneous demonstration time. Workshop Co-Chairs ------------------ Melinda Tóth, Eötvös Loránd University, Hungary Scott Lystig Fritchie, Basho Japan KK Program Committee ----------------------------- (Note: the Workshop Co-Chairs are also committee members) Jamie Allen, Typesafe Laura M. Castro, University of A Coruña, Spain Natalia Chechina, University of Glasgow Viktoria Fördős, Erlang Solutions Yosuke Hara, Rakuten, Inc. Kenji Rikitake, KRPEO Bruce Tate, iCanMakeItBetter Simon Thompson, University of Kent, UK Important Dates ----------------------- Submissions due: Friday, 3 June, 2016 Author notification: Friday, 8 July, 2016 Final copy due: Sunday, 31 July, 2016 Workshop date: September 23, 2016 Instructions to authors -------------------------------- Papers must be submitted online via EasyChair (via the "Erlang2016" event). The submission page is https://www.easychair.org/conferences/?conf=erlang2016 <https://www.easychair.org/conferences/?conf=erlang2016> Submitted papers should be in portable document format (PDF), formatted using the ACM SIGPLAN style guidelines. Each submission must adhere to SIGPLAN's republication policy. Violation risks summary rejection of the offending submission. Accepted papers will be published by the ACM and will appear in the ACM Digital Library. Paper submissions will be considered for poster submission in the case they are not accepted as full papers. Venue & Registration Details ------------------------------------------ For registration, please see the ICFP 2016 web site at: http://conf.researchr.org/home/icfp-2016 <http://conf.researchr.org/home/icfp-2016> Related Links -------------------- CFP: http://conf.researchr.org/track/icfp-2016/erlang-2016-papers <http://conf.researchr.org/track/icfp-2016/erlang-2016-papers> ICFP 2016 web site: http://conf.researchr.org/home/icfp-2016 <http://conf.researchr.org/home/icfp-2016> Past ACM SIGPLAN Erlang workshops: http://www.erlang.org/workshop/ <http://www.erlang.org/workshop/> Open Source Erlang: http://www.erlang.org/ EasyChair submission site: https://www.easychair.org/conferences/?conf=erlang2016 <https://www.easychair.org/conferences/?conf=erlang2016> Author Information for SIGPLAN Conferences: http://www.sigplan.org/authorInformation.htm <http://www.sigplan.org/authorInformation.htm> Atendee Information for SIGPLAN Events: http://www.sigplan.org/Resources/Policies/Anti-harassment <http://www.sigplan.org/Resources/Policies/Anti-harassment>

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Postdoc ad: Domain-specific languages
by Kathleen Fisher 25 Apr '16

25 Apr '16

The Programming Language Group at Tufts University seeks applicants for a postdoctoral position on a new project that will focus on building tools to construct first-class embedded Domain-Specific Language. As computing has taken on a larger role in many areas of science, there is an increasing need to provide experts in those domains with effective programming tools. Domain-specific programming languages (DSLs) are appealing because they allow domain experts to write programs using familiar concepts and abstractions. The problem is that implementing a new programming language -- including all the expected support tools, such as editors, type checkers, compilers, profilers, and debuggers -- is a substantial undertaking. The goal of this project is to develop a system for building embedded domain-specific languages, including the full chain of support tools. Embedded DSLs (EDLSs) are convenient for language designers because they can inherit the infrastructure of the host language: syntax, type system, libraries, debugging support, etc. However, the experience of the domain user is less than ideal: error messages, debugging, and profiling all work at the level of the host language, not the DSL. In this project, we envision a different way of defining EDSLs, in which the language designers define the syntax, typing rules, and semantics of their language in a declarative fashion and then the system generates an implementation of the language and tool support, including a parser, a type checker, an interpreter, an optimizing compiler, a proof that the compiler and interpreter correctly implement the semantics, a debugger, a profiler, and other useful tools. The initial work on the project will be done in the context of Haskell. The position is funded for two and half years (ending summer of 2017) starting immediately. The start date is negotiable, but all else equal we prefer to hire someone sooner rather than later. Salary is competitive. Work will be carried out at the main Tufts campus in Medford, MA. QUALIFICATIONS The selected applicant will work closely with Professors Kathleen Fisher and Sam Guyer as well as with graduate and undergraduate students. He or she will be expected to take a leadership role in the project, helping to formulate research directions and coordinate the activities of PhD, Masters and Undergraduate students. Applicants are required to either have a PhD or to be about to receive one. We are looking for someone with a strong background in at least one of the domains relating to the project: language design and implementation, compilers, formal specification and verification, type systems, and runtime systems (including memory management, debugging, and profiling). An explicit goal of the project is to produce working tools in addition to writing research papers, so we are looking for applicants with a track record of building software and writing papers. Applicants are expected to have good communication and organization skills. APPLICATION INSTRUCTIONS Interested candidates should apply through Interfolio at https://apply.interfolio.com/34187. An application should include (a) a cover letter explaining your interest in the position, (b) a current CV or resume, and (c) at least two letters of reference. If you have any questions about the project or whether it is a good fit for you, please contact either Sam Guyer (sguyer(a)cs.tufts.edu) or Kathleen Fisher (kfisher(a)cs.tufts.edu)

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JLAMP special issue for PLACES
by Dominic Orchard 22 Apr '16

22 Apr '16

-------------------------------- Call for papers: Special Issue of JLAMP for PLACES (Programming Language Approaches to Concurrency and Communication-cEntric Software) -------------------------------- Submission deadline: July 29th 2016 -------------------------------- http://www.journals.elsevier.com/journal-of-logical-and-algebraic-methods-i… -------------------------------- This special issue of the Journal of Logical and Algebraic Methods in Programming (JLAMP) is devoted to the topics of the 9th International Workshop on Programming Language Approaches to Concurrency and Communication-cEntric Software (PLACES 2016), which took place in April 2016 in Eindhoven as part of ETAPS. This is however an *open call* for papers, therefore both participants of the workshop and other authors are encouraged to submit their contributions. Themes: Modern hardware platforms, from the very small to the very large, increasingly provide parallel computing resources for applications to maximise performance. Many applications therefore need to make effective use of tens, hundreds, and even thousands of compute nodes. Computation in such systems is thus inherently concurrent and communication centric. Effectively programming such applications is challenging; performance, correctness, and scalability are difficult to achieve. Submissions are invited in the area of programming language approaches to concurrency, communication and distribution, ranging from foundational issues, through language implementations, to applications (such as scientific computing) and case studies. Please visit the above website for more detailed topics of interest. Submission: We expect original articles (roughly 20-30 pages) that present high-quality contributions that have not been previously published in another journal and that must not be simultaneously submitted for publication elsewhere. Longer papers will be considered if there is a clear justification for why additional pages are necessary; authors should contact the guest editors to discuss this. Each paper will undergo a thorough evaluation by at least two reviewers. The authors will have about one month to incorporate the comments of the reviewers and submit a revised version of their papers, which will be evaluated again by the reviewers to make a final decision. Contributions should be typeset in PDF format and must comply with JLAMP's author guidelines (see website for details). Submission deadline: 29th July 2016 Final decision due in: Jan 2017 (planned) Guest Editors: Dominic Orchard, University of Cambridge, dominic.orchard(a)cl.cam.ac.uk Nobuko Yoshida, Imperial College London, UK, n.yoshida(a)imperial.ac.uk

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ANN: shine and shine-varying: Lightweight declarative 2D graphics à la gloss using GHCJS (and a FRP interface)
by Francesco Gazzetta 22 Apr '16

22 Apr '16

Shine wraps JavaScript’s drawing functions in a declarative API, hiding the boilerplate canvas code. The API mimics the one provided by gloss (Picture, animate, play…), but some types are different to better adapt to js code (ex. images, fonts, inputs). Example: main = runWebGUI $ \ webView -> do ctx <- fixedSizeCanvas webView 800 600 let concentricCircles = foldMap Circle [1,10..100] draw ctx concentricCircles -- one-shot drawing The only direct dependency is ghcjs-dom, so the resulting jsexe should be relatively lightweight. I also wrote shine-varying, a FRP interface to shine in terms of Vars plus some utility Vars. Example (translation of the resize-yogi Elm example): resizeImage img (x',y') = Translate (x/2) (y/2) -- Pictures are centered on (0,0), so we need to move it $ Image (Stretched x y) img -- Scale the picture to the given position where x = fromIntegral x' -- mousePosition is Integral y = fromIntegral y' main = runWebGUI $ \ webView -> do ctx <- fixedSizeCanvas webView 1024 768 Just doc <- webViewGetDomDocument webView narwhal <- makeImage "https://wiki.haskell.org/wikiupload/8/85/NarleyYeeaaahh.jpg" let resizedNarwhal = resizeImage narwhal <$> mousePosition playVarying ctx doc 30 resizedNarwhal I plan to write/port a few simple games with it soon. Francesco

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Haskell in Leipzig 2016: Call for Papers
by Joachim Breitner 22 Apr '16

22 Apr '16

Haskell in Leipzig September 14-15, 2016 HTKW Leipzig, Germany http://hal2016.haskell.org/ == About HaL == The workshop series “Haskell in Leipzig”, now in its 11th year, brings together Haskell developers, Haskell researchers, Haskell enthusiasts and Haskell beginners to listen to talks, take part in tutorials, and join in interesting conversations. Everything related to Haskell is on topic, whether it is about current research, practical applications, interesting ideas off the beaten track, education, or art, and topics may extend to functional programming in general and its connections to other programming paradigms as well. This year, HaL is colocated with two related conferences, * the Workshop on Functional and (Constraint) Logic Programming (WFLP) and * the Workshop on (Constraint) Logic Programming (WLP), to form the Leipzig Week of Declarative Programming (L-DEC): http://nfa.imn.htwk-leipzig.de/LDEC2016/ In order to accommodate and welcome a more international audience, this year’s HaL will be held in English. == Submissions == Contributions can take the form of * talks (about 30 minutes), * tutorials (about 90 minutes), * demonstrations, artistic performances, or other extraordinary things. Please submit an abstract that describes the content and form of your presentation, the intended audience, and required previous knowledge. We recommend a length of 2 pages, so that the PC and the audience get a good idea of your submission, but this is not a hard requirement. You can submit your abstract, as an PDF document, at https://easychair.org/conferences/?conf=hal2016 until Friday, July 1, 2016. You will be notified by July 15, 2016. == Program committee == * Andreas Abel, Chalmers and Gothenburg University, Sweden * Heinrich Apfelmus, Leipzig, Germany * Joachim Breitner, Karlsruhe Institute of Technology, Germany (Chair) * Matthias Fischmann, Zerobuzz, Germany * Petra Hofstedt, BTU Cottbus-Senftenberg, Germany * Wolfgang Jeltsch, Institute of Cybernetics at Tallinn University of Technology, Estonia * Andres Löh, Well-Typed LLP, Germany * Alejandro Serrano Mena, Universiteit Utrecht, Netherlands * Neil Mitchell, Standard Chartered Bank, UK * Katie Ots, Facebook, UK * Peter Stadler, University of Leipzig, Germany * Henning Thielemann, Freelancer, Germany * Niki Vazou, University of California, San Diego, USA If you have any questions, please don’t hesitate to contact Joachim Breitner <breitner(a)kit.edu>. -- Dipl.-Math. Dipl.-Inform. Joachim Breitner Wissenschaftlicher Mitarbeiter http://pp.ipd.kit.edu/~breitner

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