101 lines
4.4 KiB
HTML
101 lines
4.4 KiB
HTML
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<!DOCTYPE html>
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<html>
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<!-- Created by GNU Texinfo 7.1, https://www.gnu.org/software/texinfo/ -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<!-- This manual documents Guile version 3.0.10.
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Copyright (C) 1996-1997, 2000-2005, 2009-2023 Free Software Foundation,
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Inc.
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Copyright (C) 2021 Maxime Devos
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Copyright (C) 2024 Tomas Volf
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with no
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Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
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copy of the license is included in the section entitled "GNU Free
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Documentation License." -->
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<title>REPL Commands (Guile Reference Manual)</title>
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<meta name="description" content="REPL Commands (Guile Reference Manual)">
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<meta name="keywords" content="REPL Commands (Guile Reference Manual)">
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<link href="index.html" rel="start" title="Top">
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Using-Guile-Interactively.html" rel="up" title="Using Guile Interactively">
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<link href="Error-Handling.html" rel="next" title="Error Handling">
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<link href="Value-History.html" rel="prev" title="Value History">
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<style type="text/css">
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</style>
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<link rel="stylesheet" type="text/css" href="https://www.gnu.org/software/gnulib/manual.css">
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</head>
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<body lang="en">
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<div class="subsection-level-extent" id="REPL-Commands">
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<div class="nav-panel">
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<p>
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Next: <a href="Error-Handling.html" accesskey="n" rel="next">Error Handling</a>, Previous: <a href="Value-History.html" accesskey="p" rel="prev">Value History</a>, Up: <a href="Using-Guile-Interactively.html" accesskey="u" rel="up">Using Guile Interactively</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>
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</div>
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<hr>
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<h4 class="subsection" id="REPL-Commands-1"><span>4.4.4 REPL Commands<a class="copiable-link" href="#REPL-Commands-1"> ¶</a></span></h4>
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<a class="index-entry-id" id="index-commands"></a>
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<p>The REPL exists to read expressions, evaluate them, and then print their
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results. But sometimes one wants to tell the REPL to evaluate an
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expression in a different way, or to do something else altogether. A
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user can affect the way the REPL works with a <em class="dfn">REPL command</em>.
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</p>
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<p>The previous section had an example of a command, in the form of
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<code class="code">,option</code>.
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</p>
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<div class="example lisp">
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<pre class="lisp-preformatted">scheme@(guile-user)> ,option value-history #t
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</pre></div>
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<p>Commands are distinguished from expressions by their initial comma
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(‘<samp class="samp">,</samp>’). Since a comma cannot begin an expression in most languages,
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it is an effective indicator to the REPL that the following text forms a
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command, not an expression.
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</p>
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<p>REPL commands are convenient because they are always there. Even if the
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current module doesn’t have a binding for <code class="code">pretty-print</code>, one can
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always <code class="code">,pretty-print</code>.
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</p>
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<p>The following sections document the various commands, grouped together
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by functionality. Many of the commands have abbreviations; see the
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online help (<code class="code">,help</code>) for more information.
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</p>
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<ul class="mini-toc">
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<li><a href="Help-Commands.html" accesskey="1">Help Commands</a></li>
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<li><a href="Module-Commands.html" accesskey="2">Module Commands</a></li>
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<li><a href="Language-Commands.html" accesskey="3">Language Commands</a></li>
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<li><a href="Compile-Commands.html" accesskey="4">Compile Commands</a></li>
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<li><a href="Profile-Commands.html" accesskey="5">Profile Commands</a></li>
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<li><a href="Debug-Commands.html" accesskey="6">Debug Commands</a></li>
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<li><a href="Inspect-Commands.html" accesskey="7">Inspect Commands</a></li>
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<li><a href="System-Commands.html" accesskey="8">System Commands</a></li>
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</ul>
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</div>
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</body>
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</html>
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