[swn] Schemers Gazette 6

Subject: Compiler messages

Not much room for much commentary this time. Send me news please! MJR

In this edition:
- PLT Scheme v299.100
- 2nd European Lisp & Scheme Workshop
- Announce: sqlid v0.22
- SISC 1.9.7 Released
- 2nd European Lisp & Scheme Workshop
- SRFI 67: Compare Procedures
- STklos 0.61
- SISCweb 0.1 - stateful Scheme web framework for J2EE
- SRFI 68: Comprehensive I/O
- SRFI 69: Basic hash tables
- an alpha port of OPT-LAMBDA to SISC
- R6RS Progress Report
- WebIt! 2.0 Released
- Final SRFI 63: Homogeneous and Heterogeneous Arrays
- defstruct, matcher and numbers eggs
- Vacancy on Scheme Editors Committee
- Schemers homepage changed
- Schemers Jobs changed


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From: Eli Barzilay <eli@xxxxxxxxxxxx>
Subject: PLT Scheme v299.100
Date: Fri, 25 Mar 2005 15:52:52 CST

PLT Scheme v299.100 is now available from http://download.plt-scheme.org/
THIS IS A v300 ALPHA RELEASE.  Teachers and students using DrScheme in
coursework should wait for the final v300 release, which will occur
close to a new semester.  Others should upgrade with caution.

For those who can upgrade, v299.100 offers many improvements,
including:
 * Unicode characters and strings;
 * access to foreign functions and libraries directly from Scheme;
 * continuations that are portable among threads;
 * macro improvements (e.g., eliminated "identifier for a definition
   already has a module context" errors);
 * improved class system (augment-only methods);
 * improved and revised contract library;
 * anti-aliased drawing (on most platforms);
 * improved GUI and text performance on Mac OS X;
 * tabbed editing in DrScheme; and
 * PLaneT (distribution system) enhancements, including compilation
   support, Help Desk integration, and a command-line interface.


-----
Date: Mon, 28 Mar 2005 20:41:24 +0200
From: Hans Oesterholt-Dijkema <hdnews@xxxxxxxxx>
Subject: Announce: sqlid v0.22

I've released Version 0.22 of SQLI/SQLD.

This is a minor release.

- Both sqlite and psql backends can now be used with mzscheme 299.100.

You can find it at:

  http://www.elemental-programming.org/epwiki/Bigloo%20SQLI

ChangeLog:

  http://www.elemental-programming.org/epwiki/Bigloo%20SQLI%20ChangeLog


-----
Date: Mon, 28 Mar 2005 11:01:38 -0600
From: "Scott G\. Miller" <scgmille@xxxxxxxxxxxxxxxxxx>
Subject: [Announce] SISC 1.9.7 Released

This is a maintenance release for the 1.9.x stable series of SISC.  It 
contains several bug fixes.

* Fixed a bug in the complex division routines. (#1096496)
* Fixed three bugs in the generic I/O layer related to
   block and string reads
* Fixed a rare analyzer/optimizer interaction resulting
   in failed compilation.
* Fixed a bug in the implementation of SRFI-13's string-contains-ci.
* Fixed a serialization problem with Unicode strings.
* Fixed problem with the syntax-case expander's handling
   of vector quasiquotes.
* Fixed a naming collision problem with implicitly exported bindings
   in the module system.

     http://sisc.sourceforge.net


-----
From: Pascal Costanza <pc@xxxxxxxxx>
Subject: [CfP] 2nd European Lisp & Scheme Workshop
Date: 30 Mar 2005 09:44:50 -0800

+---------------------------------------------------------------------+
|               2nd European Lisp and Scheme Workshop                 |
|      July 26 - Glasgow, Scotland - co-located with ECOOP 2005       |
|                         Supported by ALU                            |
+---------------------------------------------------------------------+
Important
- The workshop will include a keynote by Richard P. Gabriel. (pending)
- We are looking for papers & for breakout group proposals! (see below)

Important Dates:
 Submission deadline: May 16, 2005
 Notification of acceptance: May 27, 2005
 ECOOP early registration deadline: pending

For more information visit
 http://lisp-ecoop05.bknr.net (expect a few updates in the near future)
 or contact pc@xxxxxxxxx


-----
From: srfi-editors@xxxxxxxxxxxxxxxxx
Subject: SRFI 67: Compare Procedures
Date: Tue,  5 Apr 2005 09:23:49 +0200 (DFT)
Reply-To: srfi-67-request@xxxxxxxxxxxxxxxxx

This announces the availability for discussion of
Scheme Request for Implementation 67
"Compare Procedures" by Sebastian Egner and Jens Axel Søgaard.

Its draft and an archive of the ongoing discussion is available at
http://srfi.schemers.org/srfi-67/


-----
From: Erick Gallesio <eg_@xxxxxxxxx>
Subject: [Announce] STklos 0.61
Date: Tue, 05 Apr 2005 23:29:18 +0200

 STklos is a free Scheme System (nearly) conform to R5RS. The aim of this
 implementation is to be fast as well as light. The implementation is
 based on an ad-hoc Virtual Machine. STklos can also be compiled as a
 library, so that one can easily embeds it in an application.

 Changes in this release:
     * Documentation is updated
     * Distribution uses now PCRE 5.0 for regexp
     * Build process has changed
     * Perfomance improvement thanks to VM and I/O optimizations
     * Added a way to download and install STklos extensions
     * Better error signaling on undefined variables when compiling files
     * Minor enhancements.
     * New primitives
     * Implementation of SRFI-60 (Integers as bits)
     * Bug fixes

 Homepage/Download: See http://www.stklos.net/


-----
From: Alessandro Colomba <acolomba@xxxxxxxxx>
Subject: [ANN] SISCweb 0.1 - stateful Scheme web framework for J2EE
Date: 9 Apr 2005 06:45:37 -0700

I would like to announce that the first public release of SISCweb is
available at http://www.sf.net/projects/siscweb/.

SISCweb is a framework to facilitate writing stateful Scheme web
applications in J2EE environments.

In addition to the source code, a small collection of simple examples
is provided as a war file "siscweb-examples.war" which can be deployed
in any recent J2EE server (e.g. tomcat 5.x) running under Java 1.4.


-----
From: srfi-editors@xxxxxxxxxxxxxxxxx
Subject: SRFI 68: Comprehensive I/O
Date: Thu, 14 Apr 2005 22:38:15 +0200
Reply-To: srfi-68-request@xxxxxxxxxxxxxxxxx

This announces the availability for discussion of
Scheme Request for Implementation 68
"Comprehensive I/O" by Michael Sperber.

Its draft and an archive of the ongoing discussion is available at
http://srfi.schemers.org/srfi-68/


-----
From: David Van Horn <dvanhorn@xxxxxxxxxx>
Subject: SRFI 69: Basic hash tables
Date: Mon, 25 Apr 2005 13:01:04 -0400

This announces the availability for discussion of
Scheme Request for Implementation 69
"Basic hash tables" by Panu Kalliokoski..

Its draft and an archive of the ongoing discussion is available at
http://srfi.schemers.org/srfi-69/


-----
From: Andrew Wilcox <schematics-dev@xxxxxxxxxxxxxxxxx>
Subject: [Schematics-development] an alpha port of OPT-LAMBDA to SISC
Date: Tue, 26 Apr 2005 08:35:00 -0700 (PDT)

Continuing my work on a port of SchemeUnit to SISC, here's an port of
MzScheme's OPT-LAMBDA form to SISC.

The definition of RAISE-SYNTAX-ERROR here is a quick and ugly hack, a
better version could (and should!) be written for SISC.

The code may be downloaded as a zip file from
    http://code.andrewwilcox.name/project/schemeunit-sisc-port/opt-lambda.zip


-----
From: Mitchell Wand <wand@xxxxxxxxxxx>
Date: Tue, 26 Apr 2005 16:33:18 -0400
Subject: R6RS Progress Report

I am pleased to announce that the Scheme Language Editors Committee
has released its second progress report.  This report details the
progress made from its meetings at ICFP in September, 2004, through
March, 2005.

The progress report can be found at
http://www.schemers.org/Documents/Standards/Charter/ 


-----
From: Jim Bender <jim@xxxxxxxxxxxxx>
Subject: WebIt! 2.0 Released
Date: Wed, 27 Apr 2005 03:59:06 GMT

WebIt! 2.0 is now available:
   http://celtic.benderweb.net/webit/
WebIt! is a framework for manipulating XML in Scheme.

WebIt! requires PLT Scheme v206p1 or later (including v299.xxx).

Changes in the WebIt! 2.0 release include:
- SXML is now used as the representation of XML used internally 
  within WebIt!. This is change is made primarily to enable
  "interoperability" between WebIt! and the various SXML-related
  libraries, e.g. SSAX, SXPath, HtmlPrag. This replaces the use 
  of structures  in earlier WebIt! releases.
- A new "by-example" style pattern matcher for XML, 'xml-match', 
  is introduced. This is a considerable improvement on the old
  'xml-rules/xml-case' pattern matcher. In addition to the 
  xml-match syntax,  xml-match-let and xml-match-let* are provided.
  'xml-match' supports catamorphisms (a la the IU s-expr matcher).
- Added a new module for syntax-coloring of Scheme code in HTML
  (scm-markup.ss).


-----
From: David Van Horn <dvanhorn@xxxxxxxxxx>
Subject: Final SRFI 63: Homogeneous and Heterogeneous Arrays
Date: Wed, 27 Apr 2005 10:27:47 -0400

This announces that Scheme Request for Implementation 63
"Homogeneous and Heterogeneous Arrays" by Aubrey Jaffer.
has gone into ``final'' status.

The document and an archive of the discussion is available at
http://srfi.schemers.org/srfi-63/


-----
From: CHICKEN News
Subject: defstruct, matcher and numbers eggs
Date: Sun,  1 May 2005 09:54:49 +0200

Three new extension libraries are now available: defstruct
(another record-structure facility, slightly more convenient
than define-record, by Dorai Sitaram), matcher (Dale Jordan's
repackaging of Andr&eacute; van Tonders pattern matcher for
SRFI-57) and numbers, an implementation of the full numeric tower
for CHICKEN (needs the GNU Multiprecision package - you should
also get the newest CHICKEN version to really appreciate it).

http://www.call-with-current-continuation.org/#9b57096-37dd967


-----
From: Mitchell Wand <wand@xxxxxxxxxxx>
Date: Fri, 6 May 2005 14:47:24 -0400
Subject: Vacancy on Scheme Editors Committee

As we announced on 4/26/05, Richard Kelsey has resigned from the
Scheme Language Editors Committee.
In order to tap the largest possible pool of talent, the Steering
Committee would like suggestions from the community for a suitable
replacement.

Feel free to nominate yourself or any person whom you feel would be
appropriate to serve on the Editors Committee.  You may nominate more
than one person.

In making your suggestions, please be guided primarily by who would do
the best job, and not by likelihood of acceptance or other external
factors.  For each nominee, please include a brief statement of why
you believe that person would be a good editor.


-----
Subject: Schemers homepage changed
X-URL: http://www.schemers.org/

Updated with a link to ACM SIGPLAN.


-----
Subject: Schemers Jobs changed
X-URL: http://www.schemers.org/Positions/

MAK Technologies (USA) advertising for Applied AI Engineer


-----

Compiled by MJ Ray from parts distilled from usenet, the
web and stuff emailed in. Please send items containing
19 lines of 74 characters for inclusion in the next Gazette.
http://www.freelists.org/list/swn http://mjr.towers.org.uk/

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