Scheme Requests for Implementation (SRFIs), 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. Supporting any R6RS implementation supporting the *.IMPL.sls convention is easy. 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) Other SRFIs are not available because there hasn't been a demand for them or they're not possible as an R6RS library. If you already have ported SRFIs to R6RS, we'd love to assimilate them. You can let us know by "asking a question" at the Scheme Libraries project page: https://launchpad.net/scheme-libraries Currently supported systems are Chez Scheme, Ikarus, Larceny, and Ypsilon. PLT Scheme is only semi-supported because it has its own "srfi" directory which conflicts with having another "srfi" directory; you can symlink/copy files from this collection into PLT's "srfi" directory. For the latest development version, go to: https://code.launchpad.net/~scheme-libraries-team/scheme-libraries/srfi Bug Reporting: -------------- Submit bug reports at: https://bugs.launchpad.net/scheme-libraries/+filebug