jscheme-user Mailing List for The Jscheme Web Programming Project

Is there some plan to improve Jscheme to.R5RS?

-- 
Antonio J. Arrieta Cuartero

With the usual apologies to those who receive multiple copies
This version contains the schedules of presentations and tutorial

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
                   International Lisp Conference 2010 
                          October 19-21, 2010 
                     John Ascuaga's Nugget (Casino) 
               Reno/Sparks, Nevada, USA (near Lake Tahoe) 
            Collocated with SPLASH 2010 (OOPSLA & DLS & more) 
                see also http://splashcon.org as well as 
           http://www.dynamic-languages-symposium.org/dls-10/ 
               In association with ACM SIGPLAN
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 

The Association of Lisp Users is pleased to announce the 2010
International Lisp Conference, to be held in Reno, Nevada, in
collocation with SPLASH 2010.

This year's program consists of tutorials for beginners and advanced
users, a selection of prominent invited speakers, an excellent
technical session, lightning talks and an open forum.

All ILC and other SPLASH co-located registrants have free admittance 
to the ILC tutorials.  Note that these tutorials are double-tracked
across from the early-morning SPLASH keynote addresses.


All ILC and other SPLASH co-located registrants have free admittance 
to the ILC tutorials.  Note that these tutorials are double-tracked
across from the early-morning SPLASH keynote addresses.


Schedule:
~~~~~~~~~
  
see also http://www.international-lisp-conference.org/2010/schedule


Tuesday, October 19
~~~~~~~~~~~~~~~~~~~

  ILC tutorial: Ernst van Waning
    Introduction to Common Lisp, part 1

  SPLASH keynote: Stephanie Forrest
    The Case for Evolvable Software

  ILC invited speaker: Dr. Lawrence Hunter
    Building a Mind for Life

  ILC invited speaker: Jans Aasman
    AllegroGraph and the Linked Open Data Cloud

  Hannes Mehnert
    Extending Dylan's Type System for Better Type Inference and Error
    Detection

  Shingo Yuasa and Masahiro Yasugi
    Validating Low-Level Instructions for Fixnums using BDDs

  Roy Turner
    LP/Lisp: Literate Programming for Lisp

  Francois-Rene Rideau and Robert Goldman
    ASDF 2: Evolving an API to Improve Social Interactions 


Wednesday, October 20
~~~~~~~~~~~~~~~~~~~~~

  ILC tutorial: Ernst van Waning
    Introduction to Common Lisp, part 2

  ILC tutorial: David Margolies
    AllegroGraph, Lisp for a NoSQL World

  SPLASH keynote: Benjamin C. Pierce
    Art, Science, and Fear

  ILC invited speaker: Marc Feeley
    Gambit Scheme: Inside Out

  ILC invited speaker: Peter Seibel
    Common Lisp Standardization: The Good, the Bad, and the Ugly

  Tomoharu Ugawa, Hideya Iwasaki, and Taiichi Yuasa
    Starvation-free Heap Size for Replication-Based Incremental
    Compacting Garbage Collection

  John Maraist
    NST: A unit testing system for Common Lisp

  ALU meeting


Thursday, October 21
~~~~~~~~~~~~~~~~~~~~

  ILC tutorial: 
    Introduction to Common Lisp, part 3

  SPLASH keynote: Kenneth Stanley
    Searching Without Objectives

  ILC Invited speaker: Lowell Hawkinson
    Lisp for Breakthrough Products

  ILC Invited speaker and SPLASH keynote: Don Syme
    F#: Taking Succinct, Efficient, Typed Functional Programming into
    the Mainstream

  Didier Verna
    CLon, the Command-Line Option Nuker

  Masahiro Yasugi, Tsuneyasu Komiya, Tasuku Hiraishi and Seiji Umatani
    Managing Continuations for Proper Tail Recursion

  Lightning talks and open forum


Conference Registration:
~~~~~~~~~~~~~~~~~~~~~~~~

  Due to colocation, registration must be done using ILC/SPLASH'10
  unified registration forms available at http://splashcon.org

  Please note that the registration page (page 3) has the option
  "SPLASH (OOPSLA/Onward!)" selected by default. If you are only
  planning to attend ILC, don't forget to deselect that option.

Travel and Accommodation:
~~~~~~~~~~~~~~~~~~~~~~~~~

  SouthWest Airlines offers low fares into Reno but requires booking
  online at www.southwest.com

  John Ascuaga's Nugget offers reduced rates for ILC participants; 
  see http://splashcon.org to obtain the group code; or you can
  have your travel agent look for best bookings (e.g. priceline.com)


Scope:
~~~~~~

Lisp is one of the greatest ideas from computer science and a major
influence for almost all programming languages and all sufficiently
complex software applications.

The International Lisp Conference is a forum for the discussion of
Lisp and, in particular, the design, implementation and application of
any of the Lisp dialects.  We encourage everyone interested in Lisp to
participate.


Organizing Committee:
~~~~~~~~~~~~~~~~~~~~~

 * General Chair:
   JonL White - The Ginger IceCream Factory of Palo Alto, ALU

 * Program Chair:
   Antonio Leitao - Instituto Superior Tecnico/INESC-ID

 * Conference Treasurer:
   Duane Rettig - Franz, Inc., ALU Director

 * Publicity Chair:
   Daniel Herring - ALU Director

 * ALU Treasurer:
   Rusty Johnson - TASC, Inc., ALU Director


Program Committee:
~~~~~~~~~~~~~~~~~~

 * Antonio Leitao - Instituto Superior Tecnico/INESC-ID, Portugal
 * Alex Fukunaga - University of Tokyo, Japan
 * Charlotte Herzeel - Vrije Universiteit Brussel, Belgium
 * Christophe Rhodes - Goldsmiths College, University of London, UK
 * Didier Verna - EPITA Research and Development Laboratory, France
 * Duane Rettig - Franz, Inc., USA
 * Giuseppe Attardi - University of Pisa, Italy
 * Jeff Shrager - Symbolic Systems Program, Stanford University, USA
 * Joe Marshall - Google, Inc., USA
 * Julian Padget - University of Bath, UK
 * Keith Corbett - Clozure Associates, USA
 * Kent Pitman - PTC, USA
 * Manuel Serrano - INRIA Sophia Antipolis, France
 * Marc Feeley - University of Montreal, Canada
 * Marie Beurton-Aimar University of Bordeaux 1, France
 * Mark Stickel - SRI International, USA
 * Matthias Felleisen - Northeastern University, USA
 * Scott McKay - ITA Software, USA


Contacts:
~~~~~~~~~

 * Questions: ilc10-organizing-committee at alu.org

 * Program Chair: ilc2010 at easychair.org

For more information, see http://www.international-lisp-conference.org

Hi all,

This is JSR 223 based scripting dev environment for Java dynamic
languages that's been in the works for several years now:
http://www.kobrix.com/seco.jsp

We've just released version 0.3. Here's the official press release,
please give it a try and let us know what you think.

Kobrix Software is pleased to announce the release of Seco 0.3 Seco,
formerly known as Scriba, is a scripting development environment for
JVM-based dynamic languages. Seco has been in active development and use
for the past several years and it is a perfect companion to the serious
Java developer.

Key features include:

- Support of many popular JVM languages with syntax highlighting and
code completion for most.
- Advanced script editing interface based on structured notebooks as
popularized by the Mathematica system.
- A WYSIWYG HTML editor for documentation.
- An infinite, zoomable 2D canvas for arbitrary layout of components,
container nesting and more.
- Full workspace automatically persisted in an
embedded HyperGraphDB database (see http://www.kobrix.com/hgdb.jsp)
- Support for importing 3d party libraries in multiple evaluation
contexts.
- Based on the JSR 223 standard for language interoperability - all
languages share the same runtime context.
- Real-time collaboration and exchange of components and notebooks via a
P2P network.

Seco is perfect not only for prototyping, testing and experimentation,
but it is also the ideal tool for learning a given JVM language or a new
Java library. It can be used to build complete interactive applications
embedded within the environment itself similarly to a life system like
Squeak!

Seco is free, open-source, LGPL licensed software.

To download and for more information, please visit the Seco home page at
http://www.kobrix.com/seco.jsp.

Regards,
Boris

Hi,

define-syntax seems to work for me....

You first need to download the eopl code from
   http://www.cs.indiana.edu/eopl/
Here it is in tar format:
  
  

I need 'define-syntax/syntax-case' so I tried "elf/eopl2/jscheme/ 
psyntax-init.scm" and it doesn't appear to work (any longer?). Has  
anyone had any success making this work or have an alternative define- 
syntax that provides syntax-case? Thanks, any help would be appreciated.

-matt grisius

On Tue, 5 May 2009, Timothy John Hickey wrote:
> Hi Andreas,
>
> On May 5, 2009, at 6:10 PM, Andreas Røsdal wrote:
>> Hello!
>> 
>> I'm trying to port some scheme code from guile to jscheme, and have run
>> into som problems with macros.
>> 
>> This is the function that I would like to port to jscheme:
>> (defmacro def-save-var (nm value)
>>  `(begin (define ,nm ,value)
>>          (set! variable-list (cons ',nm variable-list))))
> Here's the way to do this in Jscheme ...
>
> Is this part of a web-based card game?


Thanks for the help, Timothy. This most likely solved my problems.
I'm using JScheme in an Aisleriot card game, found here:

http://cardsparc.com/


  - Andreas

Hi Andreas,

On May 5, 2009, at 6:10 PM, Andreas Røsdal wrote:

> Hello!
>
> I'm trying to port some scheme code from guile to jscheme, and have  
> run
> into som problems with macros.
>
> This is the function that I would like to port to jscheme:
> (defmacro def-save-var (nm value)
>  `(begin (define ,nm ,value)
>          (set! variable-list (cons ',nm variable-list))))
Here's the way to do this in Jscheme ...


 > (define-macro (def-save-var nm value)
`(begin (define ,nm ,value)
         (set! variable-list (cons ',nm variable-list))))
$1 = (macro def-save-var (nm value)...)

 > (define variable-list ())
$2 = ()

 > (def-save-var a 5)
$3 = (a)

 > (def-save-var b '(1 2 3))
$4 = (b a)

 > variable-list
$5 = (b a)

 > a
$6 = 5

 > b
$7 = (1 2 3)

Is this part of a web-based card game?

Best,
---Tim---


>
>
> The code can be found in context here (commented out in lines 94 -  
> 96):
> http://code.google.com/p/aisleriot-web-client/source/browse/trunk/src/main/resources/scheme/sol.scm
>
> This is a description I have found about jscheme macros:
> "This syntax is defined so that (define name (macro (args) body)) is  
> just
> like Common Lisp's (defmacro name (args) body). I realize I should  
> add a
> mode where this syntax is not used."
>
> Could anyone please help me getting this macro correct in jscheme?
> You can see my attempt in lines 100-102, but it doesn't seem to work
> correctly.
>
>
> - Andreas
>
> ------------------------------------------------------------------------------
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> Jsc...@li...
> https://lists.sourceforge.net/lists/listinfo/jscheme-user

Hello!

I'm trying to port some scheme code from guile to jscheme, and have run 
into som problems with macros.

This is the function that I would like to port to jscheme:
(defmacro def-save-var (nm value)
   `(begin (define ,nm ,value)
           (set! variable-list (cons ',nm variable-list))))

The code can be found in context here (commented out in lines 94 - 96):
http://code.google.com/p/aisleriot-web-client/source/browse/trunk/src/main/resources/scheme/sol.scm

This is a description I have found about jscheme macros:
"This syntax is defined so that (define name (macro (args) body)) is just 
like Common Lisp's (defmacro name (args) body). I realize I should add a
mode where this syntax is not used."

Could anyone please help me getting this macro correct in jscheme?
You can see my attempt in lines 100-102, but it doesn't seem to work
correctly.


  - Andreas

[Apologies if you get duplicates of this message.]

As members of the newly elected Scheme Language Steering
Committee, we thank all who voted for expressing their
continuing interest and involvement [1].

We have decided to expand the Scheme Language Steering
Committee from 3 to 5 members.

Using the results of the election just held, we are
adding Olin Shivers and Chris Hanson to the committee.
Olin and Chris have agreed to serve, and are already
serving ex officio.

Before we can add Olin and Chris as official members of
the committee, we will have to amend the charter [2,3].

We are also considering other changes to the charter,
such as removing or modifying the prohibition against
members of the steering committee serving as editors,
removing the R6RS-specific goals, and changing other
details of the process.

We are looking into various mechanisms for keeping the
Scheme community informed of our progress and involved
in the process.  We hope to announce the details in the
coming weeks.

Will Clinger
Marc Feeley
Chris Hanson (ex officio)
Jonathan Rees
Olin Shivers (ex officio)

[1] http://lists.r6rs.org/pipermail/r6rs-discuss/2009-March/004380.html
[2] http://www.r6rs.org/charter/charter-mar-2006.txt
[3] http://lists.r6rs.org/pipermail/r6rs-discuss/2009-February/004121.html

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Hi Peter,

When you run the jscheme compiler you will need to make sure your
com.deltatheta.* classes are on the classpath of the compiler...

Have you done this (e.g. add a path to the -cp list of the java command
to start the compiler????)

Let me know if this helps or if something else is going on...

Best,
---Tim---

On Jul 24, 2008, at 10:51 AM, pet...@de... wrote:

> hi,
>
> I'm trying to compile some .scm files which reference Java classes,
> I'm getting the following error even though the classes reside in the
> same .jar as jscheme.REPL:
>
> (Error while compiling  SchemeException: Can't find
> com.deltatheta.MyClass using [(#f "com.deltatheta.MyClass"), (#f
> "com.deltatheta.MyOtherClass")])
>
> The error is being fired from the function (classNamed name) in
> Reflect.scm but I can't follow where this aims to find the class from,
> I'd be very grateful if someone could point me in the right direction.
>
> thanks
>
> Peter
>
>
>
> -------------------------------------------------------------------------
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> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/jscheme-user

hi,

I'm trying to compile some .scm files which reference Java classes,  
I'm getting the following error even though the classes reside in the  
same .jar as jscheme.REPL:

(Error while compiling  SchemeException: Can't find  
com.deltatheta.MyClass using [(#f "com.deltatheta.MyClass"), (#f  
"com.deltatheta.MyOtherClass")])

The error is being fired from the function (classNamed name) in  
Reflect.scm but I can't follow where this aims to find the class from,  
I'd be very grateful if someone could point me in the right direction.

thanks

Peter

Thanks for the fix. I've committed it in CVS and it will appear in the  
next release
and will be available tomorrow under anonymous CVS checkout ...

---Tim---

On Jun 16, 2008, at 4:29 PM, Michael Thome wrote:

> Java 6 introduced a regression in the syntax allowed by  
> ClassLoader.loadClass, no longer accepting Array syntax.  This  
> breaks all uses of jscheme methods defined using Foo[] syntax.
>
> Here's a patch for jscheme 7.2:
> --- src/jsint/Import.java.orig    2008-06-16 16:15:56.000000000 -0400
> +++ src/jsint/Import.java    2008-06-16 16:16:26.000000000 -0400
> @@ -173,7 +173,7 @@
>        try { return Class.forName(name);}
>      catch (ClassNotFoundException e) { return null;}
>      else
> -      try { return loader.loadClass(name); }
> +    try { return Class.forName(name, false, loader); }
>      catch (ClassNotFoundException e) { return null; }
>      // KRA 28JUN00: Renu found this!
>      catch (NoClassDefFoundError e) { return null; }
>
> -- 
> Michael Thome
> BBN Technologies 10 Moulton St, Cambridge MA 02138 USA
> phone: +1 617 873 1853
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
> http://sourceforge.net/services/buy/index.php_______________________________________________
> Jscheme-user mailing list
> Jsc...@li...
> https://lists.sourceforge.net/lists/listinfo/jscheme-user

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body bgcolor="#ffffff" text="#000000">
Java 6 introduced a regression in the syntax allowed by
ClassLoader.loadClass, no longer accepting Array syntax.&nbsp; This breaks
all uses of jscheme methods defined using Foo[] syntax.<br>
<br>
Here's a patch for jscheme 7.2:<br>
--- src/jsint/Import.java.orig&nbsp;&nbsp;&nbsp; 2008-06-16 16:15:56.000000000 -0400<br>
+++ src/jsint/Import.java&nbsp;&nbsp;&nbsp; 2008-06-16 16:16:26.000000000 -0400<br>
@@ -173,7 +173,7 @@<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try { return Class.forName(name);}<br>
&nbsp;&nbsp;&nbsp;&nbsp; catch (ClassNotFoundException e) { return null;}<br>
&nbsp;&nbsp;&nbsp;&nbsp; else<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try { return loader.loadClass(name); }<br>
+&nbsp;&nbsp;&nbsp; try { return Class.forName(name, false, loader); }<br>
&nbsp;&nbsp;&nbsp;&nbsp; catch (ClassNotFoundException e) { return null; }<br>
&nbsp;&nbsp;&nbsp;&nbsp; // KRA 28JUN00: Renu found this!&nbsp;&nbsp;&nbsp; <br>
&nbsp;&nbsp;&nbsp;&nbsp; catch (NoClassDefFoundError e) { return null; } <br>
<br>
<div class="moz-signature">-- <br>
<table cellpadding="0" cellspacing="0" width="100%">
  <tbody>
    <tr>
      <td>
      <font color="#808080" size="2"><b>Michael Thome</b></font><br>
      <font color="#8f8fff" size="2">BBN Technologies</font>&nbsp;<font
 color="#808080" size="2">10 Moulton St, Cambridge MA 02138 USA</font><br>
      <font color="#808080" size="2">phone: +1 617 873 1853</font><br>
      </td>
    </tr>
  </tbody>
</table>
</div>
</body>
</html>

Reminder -- The Scheme UK talk on Fluxus is tomorrow.

The next meeting for the Scheme UK user's group will be held on Wednesday, 28 May from 7pm till we leave for the pub. The meeting will take place at the offices of LShift(see http://www.lshift.net/contact.html for directions).

Dave Griffiths: "Fluxus: Scheme Livecoding" Livecoding is the name given to improvised programming, usually in front of an audience, with screen projection to allow viewers to connect the construction of a program along with it's audio/visual/olfactory output.

Fluxus is a rapid prototyping, livecoding and playing/learning environment for 3D graphics and games. It extends PLT Scheme with graphical commands
and can be used within it's own livecoding environment or from within the DrScheme IDE.

Date: 28 May *Tomorrow*
Time: 7:00pm
Venue:
  LShift Ltd
  Hoxton Point
  1st Floor Office
  6 Rufus Street
  London N1 6PE
Map: http://www.lshift.net/contact

Share and enjoy!


      __________________________________________________________
Sent from Yahoo! Mail.
A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html

Scheme UK is back on!!

The next meeting for the Scheme UK user's group will
be held on Wednesday, 28 May from 7pm till we leave
for the pub. The meeting will take place at the
offices of LShift(see
http://www.lshift.net/contact.html for directions).

Dave Griffiths: "Fluxus: Scheme Livecoding" 
Livecoding is the name given to improvised
programming, usually in front of an audience, with
screen projection to allow viewers to connect the
construction of a program along with it's
audio/visual/olfactory output.

Fluxus is a rapid prototyping, livecoding and
playing/learning environment for 3D graphics and
games. It extends PLT Scheme with graphical commands
and can be used within it's own livecoding environment
or from within the DrScheme IDE.
 
Date: 28 May
Time: 7:00pm
Venue: 
  LShift Ltd
  Hoxton Point
  1st Floor Office
  6 Rufus Street
  London N1 6PE
Map: http://www.lshift.net/contact


      __________________________________________________________
Sent from Yahoo! Mail.
A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html

Thank you!!

On Jan 25, 2008, at 10:48, jeffbz wrote:

>
> Here's a patch for the jscheme compiler. I found that (and ...) gets  
> compiled
> to return #t when all arguments are true rather than the value of  
> the last
> argument like it should. Also, I added a hack that provides a
> 'load-when-compile' form that evaluates definitions in a file at  
> compile
> time. I needed this to make some functions available for compile-time
> macroexpansion (this fixes the problem I posted about before).  
> There's also
> a similar modification that makes the compiler's read pass descend  
> into
> (load)ed files. I can see that not everybody might want this  
> behavior, but
> it made sense to me since otherwise you'd be loading interpreted  
> definitions
> from compiled code instead of just compiling everything.
> This applies to src/jsint/compiler/Compiler.scm in jscheme-7.2
>
> 56a57,66
>> (define (readlist fullfilename)
>>  ; make defs available to compiler
>>  (let ((L (open-input-file fullfilename)))
>>    (let loop ((a (read L)))
>>      (cond ((eof-object? a) ())
>> 	    ((and (pair? a) (eq? (car a) 'load))
>> 	     (append (readlist (cadr a)) (loop (read L))))
>> 	    ((and (pair? a) (eq? (car a) 'load-when-compile))
>> 	     (load (cadr a)) (loop (read L)))
>> 	    (else (cons a (loop (read L))))))))
> 60,65c70,71
> <   (let ((PROG (let readlist
> <                    ((L (open-input-file fullfilename)))
> <                       (let ((a (read L)))
> <                          (if (eof-object? a) ()
> <                              (cons a (readlist L))))))
> <           (PATH_CLASSNAME
> ---
>>  (let ((PROG (readlist fullfilename))
>> 	(PATH_CLASSNAME
> 221c228,230
> < 		  `(if ,(first args) (and ,@(rest args)) #f))))
> ---
>> 		  (if (null? (cdr args))
>> 		      (car args)
>> 		      `(if ,(first args) (and ,@(rest args)) #f)))))
>
> -- 
> View this message in context: http://www.nabble.com/patch%3A-compiler-fix-for-AND%2C-add-load-when-compile-tp15090512p15090512.html
> Sent from the JScheme - User mailing list archive at Nabble.com.
>
>
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Here's a patch for the jscheme compiler. I found that (and ...) gets compiled
to return #t when all arguments are true rather than the value of the last
argument like it should. Also, I added a hack that provides a
'load-when-compile' form that evaluates definitions in a file at compile
time. I needed this to make some functions available for compile-time
macroexpansion (this fixes the problem I posted about before). There's also
a similar modification that makes the compiler's read pass descend into
(load)ed files. I can see that not everybody might want this behavior, but
it made sense to me since otherwise you'd be loading interpreted definitions
from compiled code instead of just compiling everything.
This applies to src/jsint/compiler/Compiler.scm in jscheme-7.2

56a57,66
> (define (readlist fullfilename)
>   ; make defs available to compiler
>   (let ((L (open-input-file fullfilename)))
>     (let loop ((a (read L)))
>       (cond ((eof-object? a) ())
> 	    ((and (pair? a) (eq? (car a) 'load))
> 	     (append (readlist (cadr a)) (loop (read L))))
> 	    ((and (pair? a) (eq? (car a) 'load-when-compile))
> 	     (load (cadr a)) (loop (read L)))
> 	    (else (cons a (loop (read L))))))))
60,65c70,71
<   (let ((PROG (let readlist 
<                    ((L (open-input-file fullfilename)))
<                       (let ((a (read L)))
<                          (if (eof-object? a) ()
<                              (cons a (readlist L))))))
<           (PATH_CLASSNAME 
---
>   (let ((PROG (readlist fullfilename))
> 	(PATH_CLASSNAME 
221c228,230
< 		  `(if ,(first args) (and ,@(rest args)) #f))))
---
> 		  (if (null? (cdr args))
> 		      (car args)
> 		      `(if ,(first args) (and ,@(rest args)) #f)))))

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