83 lines
3.4 KiB
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83 lines
3.4 KiB
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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Copyright (C) 2021 Maxime Devos
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Copyright (C) 2024 Tomas Volf
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<title>Using Modules (Guile Reference Manual)</title>
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<div class="subsection-level-extent" id="Using-Modules">
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<p>
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Next: <a href="Writing-new-Modules.html" accesskey="n" rel="next">Writing new Modules</a>, Up: <a href="Using-the-Guile-Module-System.html" accesskey="u" rel="up">Using the Guile Module System</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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<h4 class="subsection subsubsection-level-set-subsection" id="Using-Modules-1"><span>2.5.1 Using Modules<a class="copiable-link" href="#Using-Modules-1"> ¶</a></span></h4>
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<p>Guile comes with a lot of useful modules, for example for string
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processing or command line parsing. Additionally, there exist many
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Guile modules written by other Guile hackers, but which have to be
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installed manually.
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</p>
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<p>Here is a sample interactive session that shows how to use the
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<code class="code">(ice-9 popen)</code> module which provides the means for communicating
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with other processes over pipes together with the <code class="code">(ice-9
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rdelim)</code> module that provides the function <code class="code">read-line</code>.
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</p>
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<div class="example smallexample">
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<pre class="example-preformatted">$ guile
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scheme@(guile-user)> (use-modules (ice-9 popen))
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scheme@(guile-user)> (use-modules (ice-9 rdelim))
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scheme@(guile-user)> (define p (open-input-pipe "ls -l"))
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scheme@(guile-user)> (read-line p)
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$1 = "total 30"
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scheme@(guile-user)> (read-line p)
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$2 = "drwxr-sr-x 2 mgrabmue mgrabmue 1024 Mar 29 19:57 CVS"
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</pre></div>
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