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Schemer's Gazette
Subject: Compiler Messages X-URL: http://mjr.towers.org.uk/swn/ As ever, please send 80x19 character messages for inclusion to mjr at phonecoop.coop, or put theme where I read. Thanks. -- MJR - Pocket Scheme 1.2 - regex hash-reader for guile, 0.4 - SISC 1.11.3 Stable Released - More eggs again... - Portable macros - now with reflective tower - Portable modules - with new evaluation semantics - New SRFI editors - SchemeScript 1.0.0 released! - XSieve: XSLT + Scheme - Common-Scheme 0.3 - PLT Scheme v299.400 - Final SRFI 67: Compare Procedures - Final SRFI 70: Numbers - SRFI 76: R6RS Records - Final SRFI 69: Basic hash tables - Resolve hostnames using mzscheme - Announcing mod_lisp for R5RS Scheme - Chicken 2.2 - Final SRFI 72: Hygienic macros. - SRFI 77: Preliminary Proposal for R6RS Arithmetic ------------------------------ Subject: Pocket Scheme 1.2 From: Ben Goetter <ben.goetter@gmail.com> Date: 17 Aug 2005 15:03:27 -0700 I am relieved to announce version 1.2 of Pocket Scheme, a compact Scheme programming environment for Windows CE (aka Windows Mobile)-powered Handheld and Pocket PCs. This release supports all contemporary devices, relaxes the recursion depth limits of previous releases, and makes I/O fully interruptible. The interfaces for network and binary I/O have changed substantially. Q.v. http://www.mazama.net/scheme/pscheme.htm ------------------------------ Subject: regex hash-reader for guile, 0.4 From: Alan Grover <awgroverBut-trim-at-but@gmail.com> Date: Tue, 23 Aug 2005 09:16:09 -0400 awg-regex-guile implements a hash-reader for regex-expressions. For example: ; find "BOB", case-insensitive (define matches (#m/BOB/i "a bob in here")) matches => ("bob") For basic use, you may find this more convenient than the posix-functions, particularly since you don't have to quadriplicate backslashes. But, since it doesn't do substitution, and it compiles at read time, you will need to use the posix-functions for fancier purposes. http://sourceforge.net/project/showfiles.php?group_id=141... ------------------------------ Subject: SISC 1.11.3 Stable Released From: "Scott G\. Miller" <scgmille@freenetproject.org> Date: Tue, 23 Aug 2005 11:06:36 -0500 Version 1.11.3 represents a significant step forward for SISC. Widespread improvements in usability, functionality, and performance define this release. * A novel infrastructure for 'optimistic' compilation, which allows more efficient but unsafe microexpressions to be compiled in but rolled back when assumptions are violated, without interrupting program flow. This allows most code to run 20-50% faster on SISC 1.11.x than in previous releases, with no loss of standards compliance. * Added support for SRFIs 51, 54, 55, 60, and 62. [...] SISC is an extensible heap-based interpreter of Scheme running on the Java VM, with an aggressively optimized, lightweight (<200k) Scheme engine. SISC outperforms all existing Java interpreters (often by more than an order of magnitude), and is competitive with interpreters in any language. [...] http://sisc.sourceforge.net ------------------------------ Subject: More eggs again... From: CHICKEN News Date: 2005-08-25T08:07:22 X-URL: http://www.call-with-current-continuation.org/index.html#... More eggs again... * magic (Identifies file types, by Peter Busser) * mysql (MySQL bindings, by Toby Butzon) * sha2 (SHA-2 hash sums, by Daishi Kato) * sqlite3 (Bindings for sqlite3, by Thomas Chust) * sx (a simple X programming library) * ajax (using asynchronous XML requests with Spiffy) Enjoy! ------------------------------ Subject: Portable macros - now with reflective tower From: Andre <andre@het.brown.edu> Date: Sat, 27 Aug 2005 12:16:53 -0400 I would like to announce version 2 of "Portable Macros" available at http://www.het.brown.edu/people/andre/macros/index.htm Improvements since version 1.9: - The macro system now has an infinite reflective tower. The hygiene algorithm implements a refinement of lexical scoping that takes into account the level of use of an identifier in determining its meaning. A form BEGIN-FOR-SYNTAX is provided for introducing bindings and performing computations at arbitrary level in the reflective tower. - A form begin-for-syntax is provided for managing bindings at arbitrary level in the syntactic tower. - A form syntactic-wind is provided. This form is useful for managing expansion time environments. ------------------------------ Subject: Portable modules - with new evaluation semantics From: Andre <andre@het.brown.edu> Date: Sat, 27 Aug 2005 12:23:07 -0400 I would like to announce version 2 of "Portable Modules" available at http://www.het.brown.edu/people/andre/macros/index.htm Improvements since version 2: - The evaulation semantics has been changed completely. It is now similar to that of the MzScheme module system. - It is integrated with the infinite reflective tower of the portable macro system at the above link. A mechanism is provided for importing environments into an arbitrary level of the reflective tower. ------------------------------ Subject: New SRFI editors From: Michael Sperber <sperber@informatik.uni-tuebingen.de> Date: Tue, 06 Sep 2005 21:26:53 +0200 Reply-To: srfi-editors@srfi.schemers.org Dear Schemers, David Rush is stepping down as a SRFI editor. He's served the SRFI process for more than three years, and we're grateful for all of the work he has done---which, as you all know, isn't one that receives a lot of public attention or gratitude. Thanks, David! At the same time, Donovan Kolbly is taking his place. The rest of us are very happy that he stepped in, and we're looking forward to working with him. Now seems to be an especially exciting time for the SRFI process---the rate of new drafts has steadily been going up, as has the amount of discussion. Keep it up! Mike Sperber (for the SRFI editors) ------------------------------ Subject: SchemeScript 1.0.0 released! From: Dominique Boucher <schemeway@sympatico.ca> Date: 07 Sep 2005 09:49:06 -0400 I'm pleased to announce the availability of SchemeScript 1.0.0, a full-featured Scheme/Lisp editor for the Eclipse environment. http://schemeway.sourceforge.net Although it has many features that are Kawa-specific, it can be used to interact with any Scheme interpreter. It is especially targetted at Scheme developers who also have to work in Java in the Eclipse environment and don't want to switch between Eclipse and [X]Emacs. [...] SchemeScript is used by many professional developers and at a a number of universities for introductory courses using Scheme. Dominique Boucher The SchemeWay Project ------------------------------ Subject: XSieve: XSLT + Scheme From: "Oleg A. Paraschenko" <olpa@xmlhack.ru> Date: Thu, 8 Sep 2005 00:53:31 +0400 some time ago Ireleased the first version of XSieve, which is an XML transformation language based on combination of XSLT and Scheme. To read the announce in xml-dev, visit http://lists.xml.org/archives/xml-dev/200509/msg00029.html XSieve is based on xsltproc and Guile. When switching from the XSLT mode to the Scheme mode, data are automatically converted to the SXML format. When returning from the Scheme mode, SXML is converted to XML nodes. XML to SXML and SXML to XML converters: http://xsieve.sourceforge.net/ex-hello2.html http://xsieve.sourceforge.net/ex-sxml2xml.html XSieve can be used to test SXPath implementations: http://xsieve.sourceforge.net/ex-sxpath.html Home page: http://xsieve.sourceforge.net/ Project page: http://sourceforge.net/projects/xsieve/ ------------------------------ Subject: Common-Scheme 0.3 From: Alex Shinn <alexshinn@gmail.com> Date: 8 Sep 2005 19:18:05 -0700 Now not only can you write portable code, you can share it easily with your friends! http://synthcode.com/scheme/common-scheme/ Version 0.3 adds the optional "common-scheme" command which acts as a package management system and multi-platform build tool all in one. Search and install from a decentralized peer-to-peer network, or directly from URLs. No package description files or Makefiles needed - everything is inferred directly from the source code itself for easy maintenance. Sharing has never been easier. ------------------------------ Subject: PLT Scheme v299.400 From: Eli Barzilay <eli@barzilay.org> Date: 10 Sep 2005 07:36:42 -0400 PLT Scheme v299.400 is now available from http://download.plt-scheme.org/ THIS IS A v300 ALPHA RELEASE. Teachers and students using DrScheme with "How to Design Programs" should wait for the final v300 release, which will occur close to a new semester. This release is to make a few bug fixes available. [...] The v300 series (including v299.400) is incompatible with the v200 series. The most significant incompatibilities include (1) support for Unicode breaks old programs that treat characters as bytes or pathnames as strings; (2) case-sensitivity is now the default; and (3) the built-in exception hierarchy has been revised. Eefdback Ewlcome ------------------------------ Subject: Final SRFI 67: Compare Procedures From: srfi-editors@srfi.schemers.org Date: Sun, 11 Sep 2005 16:14:00 +0200 This announces that Scheme Request for Implementation 67 "Compare Procedures" by Sebastian Egner and Jens Axel Søgaard. has gone into ``final'' status. The document and an archive of the discussion is available at http://srfi.schemers.org/srfi-67/ ------------------------------ Subject: Final SRFI 70: Numbers From: srfi-editors@srfi.schemers.org Date: Sun, 11 Sep 2005 16:15:00 +0200 This announces that Scheme Request for Implementation 70 "Numbers" by Aubrey Jaffer has gone into ``final'' status. The document and an archive of the discussion is available at http://srfi.schemers.org/srfi-70/ ------------------------------ Subject: SRFI 76: R6RS Records From: srfi-editors@srfi.schemers.org Date: Tue, 13 Sep 2005 08:31:38 +0200 Reply-To: srfi-76-request@srfi.schemers.org This announces the availability for discussion of Scheme Request for Implementation 76 "R6RS Records" by Will Clinger, R. Kent Dybvig, Michael Sperber, Anton van Straaten. Its draft and an archive of the ongoing discussion is available at http://srfi.schemers.org/srfi-76/ You can join the discussion of the draft by sending an email message with a "subscribe" subject line to srfi-76-request@srfi.schemers.org ------------------------------ Subject: Final SRFI 69: Basic hash tables From: srfi-editors@srfi.schemers.org Date: Wed, 14 Sep 2005 09:50:05 -0400 This announces that Scheme Request for Implementation 69 "Basic hash tables" by Panu Kalliokoski has gone into ``final'' status. The document and an archive of the discussion is available at http://srfi.schemers.org/srfi-69/ ------------------------------ Subject: Resolve hostnames using mzscheme From: Hans Oesterholt-Dijkema <hdnews@gawab.com> Date: Mon, 19 Sep 2005 21:34:00 +0200 I've just released a simple hostname resolver I've tested it under win32 and Linux. It will also determine the hostname of the machine you're on http://www.elemental-programming.org/resolv.html ------------------------------ Subject: mod_lisp for R5RS Scheme From: Alan Grover <awgrover@gmail.com> Date: Mon, 19 Sep 2005 21:41:29 -0400 Announcing the release of awg-mod_lisp-0.2. This implements the bare-bones of the Scheme side of the mod_lisp protocol in R5RS Scheme. It institutes as little policy as possible. Also a test-daemon and higher-level daemon interface (in Guile). Available at: https://sourceforge.net/project/showfiles.php?group_id=14... Mod_lisp has a home at: http://www.fractalconcept.com/asp/$u/sdataQG5kns91O1xcDM=... Feedback is encouraged. ------------------------------ Subject: Chicken 2.2 From: "bunny351\@yoho-gmail\.com" <bunny351@gmail.com> Date: 25 Sep 2005 08:22:05 -0700 The CHICKEN Scheme-to-C compiler, Version 2.2 is now available at <http://www.call-with-current-continuation.org>>. Things changed since the last release (2.0): - Bugfixes - The read-syntax `#+X Y' is provided as a shorthand for `(cond-expand (X Y) (else))' - `foreign-parse' and `foreign-parse/spec' have been removed - lolevel: Executable byte-vector stuff has been removed - SRFIs 28, 31, 62 and 69 are now officially supported - New compiler option `-extension' simplifies static compilation of eggs - Embedding: [...] Many thanks to Ashley Bone, Thomas Chust, John Cowan, Alejandro Forero Cuervo, Daniel Faken, Sven Hartrumpf, Daishi Kato, Sergey Khorev, Kon Lovett, Gene Pavlovsky, Reed Sheridan and Ed Watkeys for their helpful contributions, suggestions and bug reports! ------------------------------ Subject: Final SRFI 72: Hygienic macros. From: srfi-editors@srfi.schemers.org Date: Tue, 27 Sep 2005 12:55:16 -0400 This announces that Scheme Request for Implementation 72 "Hygienic macros." by Andre van Tonder has gone into ``final'' status. The document and an archive of the discussion is available at http://srfi.schemers.org/srfi-72/ ------------------------------ Subject: SRFI 77: Preliminary Proposal for R6RS Arithmetic From: srfi-editors@srfi.schemers.org Date: Wed, 05 Oct 2005 17:39:46 +0200 Reply-To: srfi-77-request@srfi.schemers.org This announces the availability for discussion of Scheme Request for Implementation 77 "Preliminary Proposal for R6RS Arithmetic" by William D Clinger and Michael Sperber. Its draft and an archive of the ongoing discussion is available at http://srfi.schemers.org/srfi-77/ You can join the discussion of the draft by sending an email message with a "subscribe" subject line to srfi-77-request@srfi.schemers.org (Log in to post comments)
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