October 2015 - Haskell

Final Call for Haskell Prime language committee Nominations!
by Herbert Valerio Riedel 11 Oct '15

11 Oct '15

The submission deadline (Wed, Oct 14 23:59:59 UTC 2015) for Haskell Prime self-nominations (see also original CfN at [1]) is near! If you have already submitted a self-nomination, please make sure (if it was sent to the haskell-prime list) that it shows up in the mailing list archives at - https://mail.haskell.org/pipermail/haskell-prime/2015-September/ or - https://mail.haskell.org/pipermail/haskell-prime/2015-October/ or (if you have only sent it to me directly) that I acknowledged receiving your submission by an email reply. Regards, Herbert Valerio Riedel [1]: https://mail.haskell.org/pipermail/haskell-prime/2015-September/003936.html

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ANNOUNCE: unordered-graphs
by Ivan Lazar Miljenovic 10 Oct '15

10 Oct '15

I have a relatively hacked-together graph library that uses unordered-containers as a backend available if anyone finds it interesting/useful: http://hackage.haskell.org/package/unordered-graphs It's primarily developed just for my own needs and thus I'm not sure how much future work I'll be doing on it, but I'm willing to accept pull requests. This library was semi-experimental in that I also tried a few things out with it: * Polymorphic node type * Fixed auto-generated edge type: this is because (node,node, label) triples (ala fgl) do not provide sufficient information to be able to distinguish between multiple edges, etc. * Type parameter to determine whether the graph is directed or undirected. * Typeclass to allow you to determine the type/output of a a match (I didn't end up actually using this, as the one time I needed to do a match I found the extra polymorphism caused problems; it also isn't comprehensive as I didn't write all that many instances.) -- Ivan Lazar Miljenovic Ivan.Miljenovic(a)gmail.com http://IvanMiljenovic.wordpress.com

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CfP: Haskell in Leipzig (Germany), 4/5 December 2015
by Johannes Waldmann 09 Oct '15

09 Oct '15

"Haskell in Leipzig" (Germany) workshop http://nfa.imn.htwk-leipzig.de/HAL2015/ welcomes Your contribution. Now. Wir rechnen mit Vorträgen und Tutorien und freuen uns über weitere Vorschläge (Musik/live coding, mini-hackathon, Rätsel, ..) * bis 2. November: Einreichung von Beiträgen * 5. November: Bekanntgabe des Programms * bis 27. November: Anmeldung * 4. und 5. Dezember: Workshop Herzliche Grüße, Johannes Waldmann, Leipzig.

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[APLS2015] Call for Participation: Workshop on Advances in Programming Languages and Systems
by Luminous Fennell 09 Oct '15

09 Oct '15

=== Call for Participation === Workshop: Advances in Programming Languages and Systems Date: December 15 - 16, 2015 Venue: Frankfurt, Germany Website: http://proglang.informatik.uni-freiburg.de/APLS2015/ Scope: ------ Advances in programming language research increasingly influence the world of software development and big software companies recognize the importance of research areas like functional programming, static program analysis, run-time verification, automated software engineering and debugging as well as automated verification techniques. This workshop is an opportunity to interact with leading international researchers in these areas, to receive crucial impulses, and to cultivate and maintain new and old collaborations and liaisons. The talks will be given by prominent members of the programming languages research community and cover a wide area of topics inside this field. The list of talks can be found below. For further information please visit http://proglang.informatik.uni-freiburg.de/APLS2015/ The workshop is sponsored by the DFG. List of talks: -------------- Andreas Abel: Coinductive programming with copatterns Arthur Chargueraud: Machine-checked verification of amortized complexity analyses Dominique Devriese: Reasoning about Object Capabilities with Logical Relations and Effect Parametricity Sophia Drossopoulou: Reasoning about programs in the presence of code of unknown provenance Joshua Dunfield: Evaluation-order Polymorphism Matthew Fluet: Type- and Control-Flow Analysis Christian Hammer: Declassification in the Browser Atsushi Igarashi: A Sound Type System for Layer Subtyping and Dynamically Activated First-Class Layers Ranjit Jhala: Bounded Refinement Types Ivan Lanese: Reversible Concurrent Systems Anders Moeller: Message Safety in Dart Keiko Nakata: Formal Verification of a Microkernel at FireEye James Noble: On Grace Klaus Ostermann: Automatic Refunctionalization Matthew Parkinson: The Push/Pull Model of Transactions Didier Remy: Ornaments in ML Francesco Ranzato: Abstract Interpretation of Supermodular Games Ilya Sergey: Verification of Fine-Grained Concurrent Programs Jeremy Siek: A Tracing JIT for a Functional Language Wouter Swierstra: Auto in Agda Peter Thiemann: Derivatives in Program Analysis Vasco Vasconcelos: Advances in Session Types Organizers: ----------- Luminous Fennell, University of Freiburg Peter Thiemann, University of Freiburg

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Learning Haskell — a new tutorial
by Manuel M T Chakravarty 09 Oct '15

09 Oct '15

For those getting started with Haskell, you might like to have a look at our new Haskell tutorial ”Learning Haskell”: http://learn.hfm.io/ It features a mix of text and screencasts and will be extended over time. There is a bit on the background at http://blog.haskellformac.com/blog/learning-haskell Enjoy! Manuel

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ANN: wxInstall Abriline and wxHaskell 0.92.1.0
by Henk-Jan van Tuyl 08 Oct '15

08 Oct '15

L.S., I am happy to announce the installation packages for wxHaskell on Windows, and a new version of wxHaskell: 0.92.1.0 So far, the installation of wxHaskell on Windows has been difficult, but now it is just a matter of downloading an installation package[0][1], unzipping it to the directory where you want to have it installed, and clicking on Install.bat. A detailed description can be found at the wxHaskell-for-Windows homepage[2]. The current configuration of the installation packages (one package for 32 bit and one for 64 bit systems), is called Abriline and contains compiled wxWidgets 3.0.2 and all further necessary DLLs. The installation procedure automatically installs the latest version of wxHaskell and can be used for several of the most recent versions of GHC. In case you are wondering where the name Abriline comes from, it is generated by a girls name generator I wrote (in Haskell of course); I selected this name because a search on Internet seems to indicate that the name is brand new. The new version of wxHaskell is released because it solves a bug that could crash an application. What is wxHaskell? ------------------ wxHaskell[3] 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. Links ----- See the homepage of wxHaskell for more information: https://wiki.haskell.org/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] http://sourceforge.net/projects/wxhaskell/files/wxInstall/wxInstall-Abrilin… [1] http://sourceforge.net/projects/wxhaskell/files/wxInstall/wxInstall-Abrilin… [2] https://wiki.haskell.org/WxHaskell/Windows#Installing_the_easy_way [3] https://wiki.haskell.org/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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Journal of Functional Programming - Call for PhD Abstracts
by Graham Hutton 06 Oct '15

06 Oct '15

If you or one of your students recently completed a PhD in the area of functional programming, please submit the dissertation abstract for publication in JFP: simple process, no refereeing, deadline 31st October 2015. Many thanks, Graham Hutton ============================================================ CALL FOR PHD ABSTRACTS Journal of Functional Programming Deadline: 31st October 2015 http://tinyurl.com/jfp-phd-abstracts ============================================================ PREAMBLE: Many students complete PhDs in functional programming each year. As a service to the community, the Journal of Functional Programming publishes the abstracts from PhD dissertations completed during the previous year. The abstracts are made freely available on the JFP website, i.e. not behind any paywall. They do not require any transfer of copyright, merely a license from the author. A dissertation is eligible for inclusion if parts of it have or could have appeared in JFP, that is, if it is in the general area of functional programming. The abstracts are not reviewed. Please submit dissertation abstracts according to the instructions below. We welcome submissions from both the PhD student and PhD advisor/supervisor although we encourage them to coordinate. ============================================================ SUBMISSION: Please submit the following information to Graham Hutton <graham.hutton(a)nottingham.ac.uk> by 31st October 2015. o Dissertation title: (including any subtitle) o Student: (full name) o Awarding institution: (full name and country) o Date of PhD award: (month and year; depending on the institution, this may be the date of the viva, corrections being approved, graduation ceremony, or otherwise) o Advisor/supervisor: (full names) o Dissertation URL: (please provide a permanently accessible link to the dissertation if you have one, such as to an institutional repository or other public archive; links to personal web pages should be considered a last resort) o Dissertation abstract: (plain text, maximum 1000 words; you may use \emph{...} for emphasis, but we prefer no other markup or formatting in the abstract, but do get in touch if this causes significant problems) Please do not submit a copy of the dissertation itself, as this is not required. JFP reserves the right to decline to publish abstracts that are not deemed appropriate. ============================================================ PHD ABSTRACT EDITOR: Graham Hutton School of Computer Science University of Nottingham Nottingham NG8 1BB United Kingdom ============================================================ This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please send it back to me, and immediately delete it. Please do not use, copy or disclose the information contained in this message or in any attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. This message has been checked for viruses but the contents of an attachment may still contain software viruses which could damage your computer system, you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.

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CFP: Special issue of JFP on dependently typed programming
by Wouter Swierstra 05 Oct '15

05 Oct '15

----------------------------------------------------------------------------- CALL FOR PAPERS JFP Special Issue on Dependently typed Programming Submission Deadline: January 11th, 2016 Expected Publication Date: Late 2016 ----------------------------------------------------------------------------- # Scope Over the last years there has been sustained interest in functional programming languages with dependent types. The foundations of dependently typed programming can be traced back to work by Martin-Löf from the 1970s. More recently, the increased popularity of systems such as Agda, Coq, Idris, and many others, reflects the growing momentum in this research area. The Journal of Functional Programming will devote a special issue to programming with dependent types. The purpose of this special issue is to present the state of the art in dependently typed programming languages and their applications. We would like to invite authors to submit papers on all topics relating to programming languages with dependent types, including theory, applications, and language design and implementation. We encourage the submission of consolidated, condensed and extended work based on prior conference and workshop publications. # Submission Details Manuscripts should be submitted in PDF format through the Journal of Functional Programming's website: https://mc.manuscriptcentral.com/cup/jfp_submit Further submission and formatting details can be found on the JFP website. Please submit your paper under the 'DTP Special issue' category. Guest Editors --------------------------------------------------------------------------------- Peter Dybjer peterd(a)chalmers.se Chalmers University of Technology Sweden Wouter Swierstra w.s.swierstra(a)uu.nl Universiteit Utrecht The Netherlands ---------------------------------------------------------------------------------

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Call for Contributions - Haskell Communities and Activities Report, November 2015 edition (29th edition)
by Mihai Maruseac 02 Oct '15

02 Oct '15

Dear all, We would like to collect contributions for the 28th edition of the ============================================================ Haskell Communities & Activities Report http://www.haskell.org/haskellwiki/Haskell_Communities_and_Activities_Report Submission deadline: 30 October 2015 (please send your contributions to hcar at haskell.org, in plain text or LaTeX format, both are equally accepted) ============================================================ This is the short story: * 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 very small or unfinished or you think it is not important enough --- please reconsider and submit an entry anyway! * If you are interested in an existing project related to Haskell that has not previously been mentioned in the HCAR, please tell us, so that we can contact the project leaders and ask them to submit an entry. * If you are working on a project that is looking for contributors, please write a short entry and submit it, mentioning that your are looking for contributors. The final report might have an index with such projects, provided we get enough such submissions. * Feel free to pass on this call for contributions 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 Maruseac and Alejandro Serrano Mena FAQ: Q: What format should I write in? A: The usual format is a LaTeX source file, adhering to the template that is available at: http://haskell.org/communities/05-2015/template.tex There is also a LaTeX style file at http://haskell.org/communities/05-2015/hcar.sty that you can use to preview your entry. If you do not know LaTeX, then use plain text. 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: Should I send files in .zip archives or similar? A: No, plain file attachements are the way. 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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