December 2006 - Hugs-Users

Re: [Hugs-users] graphics
by dfeustel＠mindspring.com 17 Jan '07

17 Jan '07

> On Wed, Dec 27, 2006 at 10:10:50PM +0000, Dave(a)haskell.org wrote: > > Do soe.hs based graphics work in hugs98? > > I am getting one error after another just trying > > to get the soe module to load. > > I works for me (but the module is called Graphics.SOE rather than > SOEGraphics). What errors do you get? (If you've copied the module > to the current directory, it's not going to work.) I had done that. I will delete the file from my local directory. I had done an install of hugs98 into /usr/local/lib/hugs but I notice that almost none of the hugs98 packages got copied into /usr... So I set HUGSDIR=path/to/packages/in/my/user/account. I keep getting new "not found" errors for include files pulled in by the soe.hs file. I'm now reading Hudak's book _The Haskell School of Expression_ and finding it very helpful. I've just got into the "simple graphics" and I thought I would try it out. I think the problem I'm having is that the includes in soe are for old-style libraries and the files to be included are not found. I'm slowly starting to try to figure out what's going on with the includes since that seems to be where the problem lies.

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Re: [Hugs-users] graphics
by dfeustel＠mindspring.com 11 Jan '07

11 Jan '07

Ross wrote: > On Wed, Dec 27, 2006 at 11:13:43PM +0000, dfeustel(a)mindspring.com wrote: > > I had done an install of hugs98 into /usr/local/lib/hugs but I notice > > that almost none of the hugs98 packages got copied into /usr... > > So I set HUGSDIR=path/to/packages/in/my/user/account. > > The X11 and HGL packages won't be built if the system you built Hugs on > lacks an X11 build environment (check hugs98/packages/X11/X11.buildinfo). > (Similarly OpenGL, GLUT, OpenAL, ALUT.) But at least a dozen packages > should be built and installed in all cases. > > You could set HUGSDIR=.../hugs98/hugsdir but the packages in there > should all be installed by make install. Pointing at the top-level > source directory gets you the unprocessed source files, which won't work. > > > I keep getting new "not found" errors for include files pulled in > > by the soe.hs file. > > I presume you mean imports rather that includes. Perhaps you could > post some of what happens. I committed a couple of the sins you mentioned above. I wound up deleting the Hugs98-sept-2006 which I had built and installing the prebuilt OpenBSD package of Hugs98-03.2005. A lot of things started working. I found the hugs98 demos directory and all the graphics programs worked. I think I am starting to get the hang of Hugs98. :-)

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Second Call for Papers: TFP 2007, New York, USA
by TFP 2007 01 Jan '07

01 Jan '07

CALL FOR PAPERS Trends in Functional Programming 2007 New York, USA April 2-4, 2007 http://cs.shu.edu/tfp2007/ The symposium on Trends in Functional Programming (TFP) is an international forum for researchers with interests in all aspects of functional programming languages, focusing on providing a broad view of current and future trends in Functional Programming. It aspires to be a lively environment for presenting the latest research results through acceptance by extended abstracts. A formal post-symposium refereeing process then selects the best articles presented at the symposium for publication in a high-profile volume. TFP 2007 is co-hosted by Seton Hall University and The City College of New York (CCNY) and will be held in New York, USA, April 2-4, 2007 at the CCNY campus. SCOPE OF THE SYMPOSIUM The symposium recognizes that new trends may arise through various routes. As part of the Symposium's focus on trends we therefore identify the following five article categories. High-quality articles are solicited in any of these categories: Research Articles leading-edge, previously unpublished research work Position Articles on what new trends should or should not be Project Articles descriptions of recently started new projects Evaluation Articles what lessons can be drawn from a finished project Overview Articles summarizing work with respect to a trendy subject Articles must be original and not submitted for simultaneous publication to any other forum. They may consider any aspect of functional programming: theoretical, implementation-oriented, or more experience-oriented. Applications of functional programming techniques to other languages are also within the scope of the symposium. Articles on the following subject areas are particularly welcomed: o Dependently Typed Functional Programming o Validation and Verification of Functional Programs o Debugging for Functional Languages o Functional Programming and Security o Functional Programming and Mobility o Functional Programming to Animate/Prototype/Implement Systems from Formal or Semi-Formal Specifications o Functional Languages for Telecommunications Applications o Functional Languages for Embedded Systems o Functional Programming Applied to Global Computing o Functional GRIDs o Functional Programming Ideas in Imperative or Object-Oriented Settings (and the converse) o Interoperability with Imperative Programming Languages o Novel Memory Management Techniques o Parallel/Concurrent Functional Languages o Program Transformation Techniques o Empirical Performance Studies o Abstract/Virtual Machines and Compilers for Functional Languages o New Implementation Strategies o any new emerging trend in the functional programming area If you are in doubt on whether your article is within the scope of TFP, please contact the TFP 2007 program chair, Marco T. Morazan, at tfp2007(a)shu.edu. SUBMISSION AND DRAFT PROCEEDINGS Acceptance of articles for presentation at the symposium is based on the review of extended abstracts (6 to 10 pages in length) by the program committee. Accepted abstracts are to be completed to full papers before the symposium for publication in the draft proceedings and on-line. Further details can be found at the TFP 2007 website. POST-SYMPOSIUM REFEREEING AND PUBLICATION In addition to the draft symposium proceedings, we intend to continue the TFP tradition of publishing a high-quality subset of contributions in the Intellect series on Trends in Functional Programming. IMPORTANT DATES Abstract Submission: February 1, 2007 Notification of Acceptance: February 20, 2007 Registration Deadline: March 2, 2007 Camera Ready Full Paper Due: March 9, 2007 TFP Symposium: April 2-4, 2007 PROGRAMME COMMITTEE John Clements California Polytechnic State University, USA Marko van Eekelen Radboud Universiteit Nijmegen, The Netherlands Benjamin Goldberg New York University, USA Kevin Hammond University of St. Andrews, UK Patricia Johann Rutgers University, USA Hans-Wolfgang Loidl Ludwig-Maximilians Universität München, Germany Rita Loogen Philipps-Universität Marburg, Germany Greg Michaelson Heriot-Watt University, UK Marco T. Morazán (Chair) Seton Hall University, USA Henrik Nilsson University of Nottingham, UK Chris Okasaki United States Military Academy at West Point, USA Rex Page University of Oklahoma, USA Ricardo Pena Universidad Complutense de Madrid, Spain Benjamin C. Pierce University of Pennsylvania, USA John Reppy University of Chicago, USA Ulrik P. Schultz University of Southern Denmark, Denmark Clara Segura Universidad Complutense de Madrid, Spain Jocelyn Sérot Université Blaise Pascal, France Zhong Shao Yale University, USA Olin Shivers Georgia Institute of Technology, USA Phil Trinder Heriot-Watt University, UK David Walker Princeton University, USA ORGANIZATION Symposium Chair: Henrik Nilsson, University of Nottingham, UK Programme Chair: Marco T. Morazan, Seton Hall University, USA Treasurer: Greg Michaelson, Heriot-Watt University, UK Local Arrangements: Marco T. Morazan, Seton Hall University, USA ************************************************************************************ Dr. Marco T. Morazan TFP 2007 Program Committee Chair http://cs.shu.edu/tfp2007/

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graphics
by unknown＠example.com 28 Dec '06

28 Dec '06

Do soe.hs based graphics work in hugs98? I am getting one error after another just trying to get the soe module to load. Thanks, Dave Feustel

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Re: [Hugs-users] hugs docs
by dfeustel＠mindspring.com 19 Dec '06

19 Dec '06

Am Dienstag, 19. Dezember 2006 02:41 schrieb Dave(a)haskell.org, > Feustel(a)haskell.org: > > What software is used to convert the .xml and .sgml files in the > > Hugs docs directory to something (pdf?) readable? > > {docbook,db}2{html,dvi,pdf,ps}, depending on what should be converted and > which tools are available. In your case: Either docbook2pdf or db2pdf. > > For GHC we use a combination of xsltproc/fop/xmltex/dvips. > > Cheers, > S. Not all of the software you mention is installed on my computer. I will google for the missing programs. Many Thanks for the info, Dave Feustel

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hugs docs
by unknown＠example.com 19 Dec '06

19 Dec '06

What software is used to convert the .xml and .sgml files in the Hugs docs directory to something (pdf?) readable? Thanks, Dave Feustel

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Pocket Guide to Haskell
by unknown＠example.com 17 Dec '06

17 Dec '06

Is there available an O'Reilly-like Pocket Guide to Haskell that lists all the builtin functions and those defined in Prelude.hs? Thanks, Dave Feustel

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Re: [Hugs-users] Start hugs without loading Prelude.hs?
by dfeustel＠mindspring.com 12 Dec '06

12 Dec '06

> On Mon, Dec 11, 2006 at 04:23:21PM +0000, dfeustel(a)mindspring.com wrote: > > > [BTW, your mailer is mangling From: lines] > > > > Thanks for the tip. What's getting mangled? > > When you start a new thread, your From: line is > > > One of your replies to Mark Hills put his address into the From: line. I am no longer using a standard email program. When I reply to a message, I contstruct the reply by manually editing the message being replied to. I make mistakes when I do that. One of the mistakes I make is forgetting to update the From: address. I'll try to be more careful. > > I'm trying to understand what primitive operators are built into hugs > > that are then used to load the Prelude. (I'm a bottom-up type of person). > > I don't think that a bottom-up approach that goes through Hugs is the > best way to learn Haskell (not that going through a compiler written > in Haskell will be any better). You're better off taking the Haskell > 98 Report as the baseline. That is my plan. I expect to buy copies of the revised report and the Haskell Road to Logic,... book I got through interlibrary loan. The revised report is available online, but I find reading a physical book handy when I want to take a break from the computer. > > > (If you still have that Prelude.hs you copied in the current directory, > > > you should remove it.) > > > > What I still don't understand is why that file being present affects > > the way hugs runs when hugs says it is ignoring the file. > > The explanation is in the above messages of Mark Hills and myself; I > can't think of another way to express it. Basically you put an internal > Hugs module where it wasn't expected. Just don't do that. At some point I am going to fix that problem in my copy of hugs. Dave Feustel

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Re: [Hugs-users] Start hugs without loading Prelude.hs?
by dfeustel＠mindspring.com 12 Dec '06

12 Dec '06

> [BTW, your mailer is mangling From: lines] Thanks for the tip. What's getting mangled? > On Mon, Dec 11, 2006 at 04:08:30PM +0000, Dave(a)haskell.org wrote: > > I am now reading the Haskell 98 Revised Report. > > Good plan. Reading chapters 6, 7 and 8 of the Report (not necessarily > in that order) is a better way of getting acquainted with the Prelude > than reading Prelude.hs from the Hugs source. I am also reading the gentle intro to Haskell. I find the revised Haskell 98 report to be the clearest explanation (until MEGO and I have to take a break). Last night MEGO occurred when I started reading about patterns. I'll try again later today. > > As I get a better understanding of the Prelude, > > I am wondering if there is a way to run hugs > > without the prelude file being loaded. Is that possible? > > You can't prevent it being loaded, but you can hide all the names it > defines by writing a module > and loading that. (Not sure why you'd want to do that, though.) I'm trying to understand what primitive operators are built into hugs that are then used to load the Prelude. (I'm a bottom-up type of person). > (If you still have that Prelude.hs you copied in the current directory, > you should remove it.) What I still don't understand is why that file being present affects the way hugs runs when hugs says it is ignoring the file. It's looking to me like Haskell/Hugs98 is shaping up to be my next big self-education project. Dave

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Start hugs without loading Prelude.hs?
by unknown＠example.com 12 Dec '06

12 Dec '06

Hi! I am now reading the Haskell 98 Revised Report. As I get a better understanding of the Prelude, I am wondering if there is a way to run hugs without the prelude file being loaded. Is that possible? Thanks, Dave Feustel

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