90 lines
3.8 KiB
HTML
90 lines
3.8 KiB
HTML
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<!DOCTYPE html>
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<html>
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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>Regular Expressions (Guile Reference Manual)</title>
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<meta name="description" content="Regular Expressions (Guile Reference Manual)">
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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="API-Reference.html" rel="up" title="API Reference">
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<link href="LALR_00281_0029-Parsing.html" rel="next" title="LALR(1) Parsing">
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</head>
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<body lang="en">
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<div class="section-level-extent" id="Regular-Expressions">
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<div class="nav-panel">
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<p>
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Next: <a href="LALR_00281_0029-Parsing.html" accesskey="n" rel="next">LALR(1) Parsing</a>, Previous: <a href="Input-and-Output.html" accesskey="p" rel="prev">Input and Output</a>, Up: <a href="API-Reference.html" accesskey="u" rel="up">API Reference</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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<h3 class="section" id="Regular-Expressions-1"><span>6.13 Regular Expressions<a class="copiable-link" href="#Regular-Expressions-1"> ¶</a></span></h3>
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<a class="index-entry-id" id="index-Regular-expressions"></a>
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<a class="index-entry-id" id="index-regular-expressions"></a>
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<a class="index-entry-id" id="index-regex"></a>
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<a class="index-entry-id" id="index-emacs-regexp"></a>
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<p>A <em class="dfn">regular expression</em> (or <em class="dfn">regexp</em>) is a pattern that
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describes a whole class of strings. A full description of regular
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expressions and their syntax is beyond the scope of this manual.
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</p>
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<p>If your system does not include a POSIX regular expression library,
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and you have not linked Guile with a third-party regexp library such
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as Rx, these functions will not be available. You can tell whether
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your Guile installation includes regular expression support by
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checking whether <code class="code">(provided? 'regex)</code> returns true.
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</p>
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<p>The following regexp and string matching features are provided by the
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<code class="code">(ice-9 regex)</code> module. Before using the described functions,
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you should load this module by executing <code class="code">(use-modules (ice-9
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regex))</code>.
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</p>
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<ul class="mini-toc">
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<li><a href="Regexp-Functions.html" accesskey="1">Regexp Functions</a></li>
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<li><a href="Match-Structures.html" accesskey="2">Match Structures</a></li>
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<li><a href="Backslash-Escapes.html" accesskey="3">Backslash Escapes</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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