zaoqi-unsafe / r7rs-large

A portable implementation of the R7RS-Large libraries - Red Edition

R7RS-Large Libraries

The Red Edition of libraries is now frozen: http://trac.sacrideo.us/wg/wiki/RedEdition

This repository collects implementations of the libraries together using the (scheme NAME) import form. Tests (written in SRFI 64 form) are checked against the following R7RS Scheme implementations:

• Chibi 0.7.3: https://github.com/ashinn/chibi-scheme/
• Gauche 0.9.5: http://practical-scheme.net/gauche/
  • ensure the environment variable GAUCHE_KEYWORD_IS_SYMBOL is set so that keywords are treated as symbols
• Kawa 2.4: https://www.gnu.org/software/kawa/
• Larceny 0.99: http://www.larcenists.org/
• Sagittarius 0.8.4: https://bitbucket.org/ktakashi/sagittarius-scheme/wiki/Home
  • Sagittarius already has built-in support for R7RS large

Libraries

1. (scheme list) from SRFI 1
2. (scheme vector) from SRFI 133
3. (scheme sort) from SRFI 132
4. (scheme set) from SRFI 113
5. (scheme charset) from SRFI 14
6. (scheme hash-table) from SRFI 125
7. (scheme ilist) from SRFI 116
8. (scheme rlist) from SRFI 101
9. (scheme ideque) from SRFI 134
10. (scheme text) from SRFI 135
11. (scheme generator) from SRFI 121
12. (scheme lseq) from SRFI 127
13. (scheme stream) from SRFI 41
14. (scheme box) from SRFI 111
15. (scheme list-queue) from SRFI 117
16. (scheme ephemeron) from SRFI 124
17. (scheme comparator) from SRFI 128

Notes

(scheme set) follows the "post-finalization note no. 2" of SRFI 113 and makes the argument order of the -map and -unfold functions consistent with those in (scheme hash-table)

(scheme hash-table) is based solely on SRFI 69 as this is available and implemented efficiently in the Schemes I have targetted. For a non-SRFI 69 implementation the functions prefixed 's69:' will need replacing, perhaps by a native implementation of hash tables. All hash-tables are treated as mutable.

(scheme generator) does not work on Kawa as its continuations are not suitable for implementing coroutines.

(scheme ephemeron) requires implementation-specific code. The trivial implementation is provided here, to write code against.

Unless otherwise indicated in the code, the usual SRFI license applies: http://srfi.schemers.org/

Requirements

The following are required beyond R7RS-small and R7RS-large:

• (srfi 27) for (scheme hash-table) and (scheme sort)
• (srfi 64) for the tests
• (srfi 69) for (scheme hash-table)
• (srfi 151) for (scheme charset) and (scheme rlist)

For those Schemes which do not already support the above SRFIs, an implementation can be found at https://github.com/petercrlane/r7rs-libs

To install/use the libraries, follow the instructions at: https://github.com/petercrlane/r7rs-libs/blob/master/INSTALL.md