116 lines
5.6 KiB
HTML
116 lines
5.6 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<!-- Created by GNU Texinfo 7.1, https://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<!-- This manual documents Guile version 3.0.10.
|
|
|
|
Copyright (C) 1996-1997, 2000-2005, 2009-2023 Free Software Foundation,
|
|
Inc.
|
|
|
|
Copyright (C) 2021 Maxime Devos
|
|
|
|
Copyright (C) 2024 Tomas Volf
|
|
|
|
|
|
Permission is granted to copy, distribute and/or modify this document
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
|
any later version published by the Free Software Foundation; with no
|
|
Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
|
|
copy of the license is included in the section entitled "GNU Free
|
|
Documentation License." -->
|
|
<title>Guile and Scheme (Guile Reference Manual)</title>
|
|
|
|
<meta name="description" content="Guile and Scheme (Guile Reference Manual)">
|
|
<meta name="keywords" content="Guile and Scheme (Guile Reference Manual)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content=".texi2any-real">
|
|
<meta name="viewport" content="width=device-width,initial-scale=1">
|
|
|
|
<link href="index.html" rel="start" title="Top">
|
|
<link href="Concept-Index.html" rel="index" title="Concept Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Introduction.html" rel="up" title="Introduction">
|
|
<link href="Combining-with-C.html" rel="next" title="Combining with C">
|
|
<style type="text/css">
|
|
<!--
|
|
a.copiable-link {visibility: hidden; text-decoration: none; line-height: 0em}
|
|
span:hover a.copiable-link {visibility: visible}
|
|
-->
|
|
</style>
|
|
<link rel="stylesheet" type="text/css" href="https://www.gnu.org/software/gnulib/manual.css">
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<div class="section-level-extent" id="Guile-and-Scheme">
|
|
<div class="nav-panel">
|
|
<p>
|
|
Next: <a href="Combining-with-C.html" accesskey="n" rel="next">Combining with C Code</a>, Up: <a href="Introduction.html" accesskey="u" rel="up">Introduction</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<h3 class="section" id="Guile-and-Scheme-1"><span>1.1 Guile and Scheme<a class="copiable-link" href="#Guile-and-Scheme-1"> ¶</a></span></h3>
|
|
|
|
<p>Guile implements Scheme as described in the
|
|
Revised^5
|
|
Report on the Algorithmic Language Scheme (usually known as
|
|
<abbr class="acronym">R5RS</abbr>), providing clean and general data and control
|
|
structures. Guile goes beyond the rather austere language presented
|
|
in <abbr class="acronym">R5RS</abbr>, extending it with a module system, full access to
|
|
<abbr class="acronym">POSIX</abbr> system calls, networking support, multiple threads,
|
|
dynamic linking, a foreign function call interface, powerful string
|
|
processing, and many other features needed for programming in the real
|
|
world.
|
|
</p>
|
|
<p>In 2007, the Scheme community agreed upon and published R6RS, a
|
|
significant installment in the RnRS series. R6RS expands the core
|
|
Scheme language, and standardises many non-core functions that
|
|
implementations—including Guile—have previously done in different
|
|
ways. Over time, Guile has been updated to incorporate almost all of
|
|
the features of R6RS, and to adjust some existing features to conform to
|
|
the R6RS specification. See <a class="xref" href="R6RS-Support.html">R6RS Support</a>, for full details.
|
|
</p>
|
|
<p>In parallel to official standardization efforts, the SRFI process
|
|
(<a class="url" href="http://srfi.schemers.org/">http://srfi.schemers.org/</a>) standardises interfaces for many
|
|
practical needs, such as multithreaded programming and multidimensional
|
|
arrays. Guile supports many SRFIs, as documented in detail in <a class="ref" href="SRFI-Support.html">SRFI Support Modules</a>.
|
|
</p>
|
|
<p>The process that led to the R6RS standard brought a split in the Scheme
|
|
community to the surface. The implementors that wrote R6RS considered
|
|
that it was impossible to write useful, portable programs in R5RS, and
|
|
that only an ambitious standard could solve this problem. However, part
|
|
of the Scheme world saw the R6RS effort as too broad, and as having
|
|
included some components that would never be adopted by more
|
|
minimalistic Scheme implementations. This second group succeeded in
|
|
taking control of the official Scheme standardization track and in 2013
|
|
released a more limited R7RS, essentially consisting of R5RS, plus a
|
|
module system. Guile supports R7RS also. See <a class="xref" href="R7RS-Support.html">R7RS Support</a>.
|
|
</p>
|
|
<p>With R6RS and R7RS, the unified Scheme standardization process appears
|
|
to have more or less run its course. There will continue to be more
|
|
code written in terms of both systems, and modules defined using the
|
|
SRFI process, and Guile will support both. However for future
|
|
directions, Guile takes inspiration from other related language
|
|
communities: Racket, Clojure, Concurrent ML, and so on.
|
|
</p>
|
|
<p>In summary, Guile supports writing and running code written to the R5RS,
|
|
R6RS, and R7RS Scheme standards, and also supports a number of SRFI
|
|
modules. However for most users, until a need for cross-implementation
|
|
portability has been identified, we recommend using the parts of Guile
|
|
that are useful in solving the problem at hand, regardless of whether
|
|
they proceed from a standard or whether they are Guile-specific.
|
|
</p>
|
|
|
|
</div>
|
|
<hr>
|
|
<div class="nav-panel">
|
|
<p>
|
|
Next: <a href="Combining-with-C.html">Combining with C Code</a>, Up: <a href="Introduction.html">Introduction</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|