89 lines
3.8 KiB
HTML
89 lines
3.8 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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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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<title>SRFI-119 (Guile Reference Manual)</title>
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<link href="SRFI_002d171.html" rel="next" title="SRFI-171">
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<div class="subsection-level-extent" id="SRFI_002d119">
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<p>
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Next: <a href="SRFI_002d171.html" accesskey="n" rel="next">Transducers</a>, Previous: <a href="SRFI_002d111.html" accesskey="p" rel="prev">SRFI-111 Boxes.</a>, Up: <a href="SRFI-Support.html" accesskey="u" rel="up">SRFI Support Modules</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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<hr>
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<h4 class="subsection" id="SRFI_002d119-Wisp_003a-simpler-indentation_002dsensitive-Scheme_002e"><span>7.5.46 SRFI-119 Wisp: simpler indentation-sensitive Scheme.<a class="copiable-link" href="#SRFI_002d119-Wisp_003a-simpler-indentation_002dsensitive-Scheme_002e"> ¶</a></span></h4>
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<a class="index-entry-id" id="index-SRFI_002d119"></a>
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<a class="index-entry-id" id="index-wisp"></a>
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<p>The languages shipped in Guile include SRFI-119, also referred to as
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<em class="dfn">Wisp</em> (for “Whitespace to Lisp”), an encoding of Scheme that
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allows replacing parentheses with equivalent indentation and inline
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colons. See
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<a class="uref" href="http://srfi.schemers.org/srfi-119/srfi-119.html">the specification
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of SRFI-119</a>. Some examples:
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</p>
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<div class="example">
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<pre class="example-preformatted">display "Hello World!" ⇒ (display "Hello World!")
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</pre></div>
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<div class="example">
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<pre class="example-preformatted">define : factorial n ⇒ (define (factorial n)
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if : zero? n ⇒ (if (zero? n)
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. 1 ⇒ 1
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* n : factorial {n - 1} ⇒ (* n (factorial {n - 1}))))
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</pre></div>
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<p>To execute a file with Wisp code, select the language and filename
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extension <code class="code">.w</code> vie <code class="code">guile --language=wisp -x .w</code>.
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</p>
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<p>In files using Wisp, See <a class="xref" href="SRFI_002d105.html">SRFI-105 Curly-infix expressions.</a> (Curly Infix) is always activated.
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</p>
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