RScheme

Welcome to the RScheme web site at Scheme Conservatory. RScheme is an open-source (and freely redistributable) implementation of the Scheme language with lots of extensions and additional features beyond the core language. See the RScheme Overview for more details about what RScheme is and provides.

Visit the GitHub page

Content planning is underway for the 0.7.3.4 release. Currently, we are looking at the following big-ticket includes:

• Improving SRFI coverage, especially in the base system (CR 1000)
• Improving pstore commit performance (CR 203)
• Making multiple-argument generic function dispatch fast, and moving support into the base system.
• Full UTF string support (CR 973)

Documentation and Support

Notes and documentation on RScheme are published here, as well as the latest builds and general information about the current status of the project.

• Online (HTML) Docs. The user and technical guides, online in HTML format.
• Print Docs. The user and technical guides rendered for print media (PDF).
• Persistent Object Store. This is an in-depth look at the persistent object store, including the online garbage collector (this article is still a work in progress).
• Library Highlights. This is a listing of some of the highlights from the RScheme library. See also the article on using the library.

Releases

RScheme releases are of three types:

• Full. A full release includes a complete set of bug fixes and new features, and is intended to be quite stable, reliable, and functional. A full release drops the build number from its name, and hence is known only as, e.g., "0.7.3.2".
• Partial. A partial release contains a set of bug fixes and new features, but they may be works in progress and new features may or may not be completely implemented. Generally, a partial release is somewhat stable and tested, but may not work on all platforms.
• Build. A build release may be of any quality. Usually, an intermediate build will not be released if it is completely broken or immediately superceded. Most features are probably only partially implemented and the state of ongoing bug fixes is somewhat unpredictable.

Information about progress towards the next upcoming build may be obtained on the build readiness page.

For any given release, one or more distribution formats may be available. The Generic Source Distribution is available for all releases, and embodies the source code in minimal form to build to completion on a satisfactorily configured system. Binary distributions may also be available to simplify installation on particular platforms.

Starting with b22, we are providing at least some binary distributions from rscheme.org. Currently, all we have are AIX 5.1L binary RPMs, but as the build environment improves, the goal is to have at least RedHat binary RPMS and Debian packages. Click on the Info link to see distributions other than the generic source distribution.

Release Type	Name	Date	Info	Download Link	# D/L	Comment
Build	0.7.3.4-b7	2007-05-30	[here]	rs-0.7.3.4-b7.tar.gz	0
Build	0.7.3.4-b5	2007-01-28	[here]	rs-0.7.3.4-b5.tar.gz	0
Build	0.7.3.4-b3	2006-04-10	[here]	rs-0.7.3.4-b3.tar.gz	0
Full	0.7.3.3	2005-06-13	[here]	rs-0.7.3.3.tar.gz	0	The official 0.7.3.3 release
Full	0.7.3.2	2003-02-23	[here]	rs-0.7.3.2.tar.gz	0

Other Places Related to RScheme

• There is an RScheme revival project.
• SourceForge, where development activity was organized from June 2001 until February 2005.
• Askemos, a distributed dynamic information-oriented operating system designed to be impervious even to intentional disruption.

Other Scheme Resources

• schemers.org
• Scheme Requests For Implementation (SRFI)
  (See also our copy of the SRFI index and the RScheme SRFI Status page.)
• SLIB, a portable scheme library containing lots of useful stuff
• Neil van Dyke has some interesting Scheme one-pagers