Scheme Requests for Implementation as R6RS libraries.
The libraries' names conform to SRFI 97: SRFI Libraries. There is a registry of available SRFIs and other platform features which works alongside SRFI 0: Feature-Based Conditional Expansion. The porting done so far is mostly just taking the reference implementations from http://srfi.schemers.org and wrapping them in libraries and tweaking the few things needed to make them work in R6RS libraries and with implementations' functionality.
These SRFIs are available:
(srfi :0 cond-expand)
(srfi :1 lists)
(srfi :2 and-let*)
(srfi :6 basic-string-ports)
(srfi :8 receive)
(srfi :9 records)
(srfi :11 let-values)
(srfi :13 strings)
(srfi :14 char-sets)
(srfi :16 case-lambda)
(srfi :19 time)
(srfi :23 error)
(srfi :25 multi-dimensional-arrays)
(srfi :26 cut)
(srfi :27 random-bits)
(srfi :31 rec)
(srfi :37 args-fold)
(srfi :38 with-shared-structure)
(srfi :39 parameters)
(srfi :41 streams)
(srfi :42 eager-comprehensions)
(srfi :43 vectors)
(srfi :45 lazy)
(srfi :48 intermediate-format-strings)
(srfi :61 cond)
(srfi :64 testing)
(srfi :67 compare-procedures)
(srfi :69 basic-hash-tables)
(srfi :78 lightweight-testing)
(srfi :98 os-environment-variables)
(srfi :99 records)
Scheme systems that can be supported are those that support the *.IMPL.sls
convention for implementation-specific libraries. A variety of Scheme systems
were supported but those haven't been tried in many years, and currently only
Ikarus is known to still work. It probably would be straightforward to get Chez
and Larceny working.
This collection was originally hosted at http://code.launchpad.net/~scheme-libraries-team/scheme-libraries/srfi
Note that further development of this collection has occurred at http://github.com/arcfide/chez-srfi, but I believe that only supports Chez Scheme. It might be worthwhile to incorporate those developments into this collection which can support other Scheme systems.