R6RS Resources

This web page is a collection of links to resources that have been useful to me as an implementor and user of R6RS Scheme.

In particular, it links to the current versions of reference implementations and test programs that I have made available to other implementors and users.

R6RS Documents

R6RS Process

Reference Implementations

preliminary versions of several reference implementations (as of the R5.93 draft; last updated 2 June 2007; apparently this site is not being maintained)
reference implementation for SRFI 99 (Records); contributed by William D Clinger
reference implementation for get-datum, also known as read; contributed by William D Clinger
reference implementation for (srfi :38 with-shared-structure), parts of which were generated from these regular expressions and this grammar; contributed by Al Petrovsky, Ray Dillinger, and William D Clinger (new 19 December 2008)
reference implementation for (rnrs unicode); contributed by Michael Sperber and William D Clinger (updated 21 August 2008)
under construction: reference implementation for (rnrs bytevectors); contributed by Michael Sperber and William D Clinger
under construction: reference implementation for (rnrs enums); contributed by William D Clinger
under construction: reference implementation for conversions between strings and bytevectors; contributed by William D Clinger

Test Programs

Some of the reference implementations come with test programs that can easily be modified to test the standard libraries as well as those of the reference implementation.

PLT Scheme's R6RS test program can be checked out (using Subversion) from http://svn.plt-scheme.org/plt/trunk/collects/tests/r6rs/
tests for arithmetic from CLISP; contributed by the authors of CLISP, minimally modified by Bill Schottstaedt, and made into an R6RS top-level program by William D Clinger
tests for trigonometric and transcendental functions; contributed by Bill Schottstaedt and made into an R6RS top-level program by William D Clinger
(The current version of this program contains two tests, both for rationalize, that expect an incorrect result. Please see the comments in the program.)
Unicode normalization; part of the reference implementation for (rnrs unicode)
under construction: tests for string->number; contributed by William D Clinger
under construction: tests for conversions between strings and bytevectors; contributed by William D Clinger