SRFI 9 and the compatible R7RS-small provide Scheme with record types. The basic problem that is solved by these record types is that they allow the user to introduce new types, disjoint from all existing types.

Scheme Requests for Implementation (SRFI) is an effort to coordinate libraries and extensions of standard Scheme programming language, necessitated by Scheme's minimalist design, and particularly the lack of a standard library before Scheme R6RS. Specific SRFI documents are supported by many Scheme implementations. [1]

一种可识别 GCCC^GGGC 序列的限制性内切酶。

This SRFI defines two libraries that provide a rich set of operations for manipulating strings. These are frequently useful for scripting and other text-manipulation applications. The library's design was influenced by the string libraries found in MIT Scheme, Gambit, RScheme, MzScheme, slib, Common Lisp, Bigloo, guile, Chez, APL, Java, and the ...

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The goal of this mechanism is to provide a permanent registry for Scheme Requests For Implementation (SRFIs — pronounced "surfie"). This is not a formal standards-creation mechanism. Rather, it is a formal way to manage the production of proposals for Scheme. There are many other things that this process is not.

Racket is distributed with implementations of many SRFIs, most of which can be implemented as libraries. To import the bindings of SRFI n, use. This document lists the SRFIs that are supported by Racket and provides a link to the original SRFI specification (which is also distributed as part of Racket’s documentation).

1999年1月5日 · The purpose of the Scheme Requests for Implementation (SRFI) process is to help Scheme users write portable, useful code. We write concrete, detailed proposals and sample implementations for libraries and other additions to the Scheme language, and we encourage Scheme implementors to adopt them.

Scheme Requests for Implementation. SRFI has 263 repositories available. Follow their code on GitHub.