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Copyright (C) 2021 Maxime Devos
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Copyright (C) 2024 Tomas Volf
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<title>rnrs lists (Guile Reference Manual)</title>
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Next: <a href="rnrs-sorting.html" accesskey="n" rel="next">rnrs sorting</a>, Previous: <a href="rnrs-bytevectors.html" accesskey="p" rel="prev">rnrs bytevectors</a>, Up: <a href="R6RS-Standard-Libraries.html" accesskey="u" rel="up">R6RS Standard Libraries</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="subsubsection" id="rnrs-lists-1"><span>7.6.2.5 rnrs lists<a class="copiable-link" href="#rnrs-lists-1"> ¶</a></span></h4>
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<p>The <code class="code">(rnrs lists (6))</code> library provides procedures additional
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procedures for working with lists.
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</p>
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<dl class="first-deffn">
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<dt class="deffn" id="index-find-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">find</strong> <var class="def-var-arguments">proc list</var><a class="copiable-link" href="#index-find-1"> ¶</a></span></dt>
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<dd><p>This procedure is identical to the one defined in Guile’s SRFI-1
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implementation. See <a class="xref" href="SRFI_002d1-Searching.html">Searching</a>, for documentation.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-for_002dall"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">for-all</strong> <var class="def-var-arguments">proc list1 list2 ...</var><a class="copiable-link" href="#index-for_002dall"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-exists"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">exists</strong> <var class="def-var-arguments">proc list1 list2 ...</var><a class="copiable-link" href="#index-exists"> ¶</a></span></dt>
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<dd>
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<p>The <code class="code">for-all</code> procedure is identical to the <code class="code">every</code> procedure
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defined by SRFI-1; the <code class="code">exists</code> procedure is identical to SRFI-1’s
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<code class="code">any</code>. See <a class="xref" href="SRFI_002d1-Searching.html">Searching</a>, for documentation.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-filter-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">filter</strong> <var class="def-var-arguments">proc list</var><a class="copiable-link" href="#index-filter-1"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-partition-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">partition</strong> <var class="def-var-arguments">proc list</var><a class="copiable-link" href="#index-partition-1"> ¶</a></span></dt>
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<dd><p>These procedures are identical to the ones provided by SRFI-1.
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See <a class="xref" href="List-Modification.html">List Modification</a>, for a description of <code class="code">filter</code>;
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See <a class="xref" href="SRFI_002d1-Filtering-and-Partitioning.html">Filtering and Partitioning</a>, for <code class="code">partition</code>.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-fold_002dright-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">fold-right</strong> <var class="def-var-arguments">combine nil list1 list2 …</var><a class="copiable-link" href="#index-fold_002dright-1"> ¶</a></span></dt>
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<dd><p>This procedure is identical the <code class="code">fold-right</code> procedure provided by
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SRFI-1. See <a class="xref" href="SRFI_002d1-Fold-and-Map.html">Fold, Unfold & Map</a>, for documentation.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-fold_002dleft"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">fold-left</strong> <var class="def-var-arguments">combine nil list1 list2 …</var><a class="copiable-link" href="#index-fold_002dleft"> ¶</a></span></dt>
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<dd><p>This procedure is like <code class="code">fold</code> from SRFI-1, but <var class="var">combine</var> is
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called with the seed as the first argument. See <a class="xref" href="SRFI_002d1-Fold-and-Map.html">Fold, Unfold & Map</a>,
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for documentation.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-remp"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">remp</strong> <var class="def-var-arguments">proc list</var><a class="copiable-link" href="#index-remp"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-remove-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">remove</strong> <var class="def-var-arguments">obj list</var><a class="copiable-link" href="#index-remove-1"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-remv"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">remv</strong> <var class="def-var-arguments">obj list</var><a class="copiable-link" href="#index-remv"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-remq"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">remq</strong> <var class="def-var-arguments">obj list</var><a class="copiable-link" href="#index-remq"> ¶</a></span></dt>
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<dd><p><code class="code">remove</code>, <code class="code">remv</code>, and <code class="code">remq</code> are identical to the
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<code class="code">delete</code>, <code class="code">delv</code>, and <code class="code">delq</code> procedures provided by
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Guile’s core library, (see <a class="pxref" href="List-Modification.html">List Modification</a>). <code class="code">remp</code> is
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identical to the alternate <code class="code">remove</code> procedure provided by SRFI-1;
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See <a class="xref" href="SRFI_002d1-Deleting.html">Deleting</a>.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-memp"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">memp</strong> <var class="def-var-arguments">proc list</var><a class="copiable-link" href="#index-memp"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-member-2"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">member</strong> <var class="def-var-arguments">obj list</var><a class="copiable-link" href="#index-member-2"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-memv-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">memv</strong> <var class="def-var-arguments">obj list</var><a class="copiable-link" href="#index-memv-1"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-memq-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">memq</strong> <var class="def-var-arguments">obj list</var><a class="copiable-link" href="#index-memq-1"> ¶</a></span></dt>
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<dd><p><code class="code">member</code>, <code class="code">memv</code>, and <code class="code">memq</code> are identical to the
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procedures provided by Guile’s core library; See <a class="xref" href="List-Searching.html">List Searching</a>,
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for their documentation. <code class="code">memp</code> uses the specified predicate
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function <code class="code">proc</code> to test elements of the list <var class="var">list</var>—it
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behaves similarly to <code class="code">find</code>, except that it returns the first
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sublist of <var class="var">list</var> whose <code class="code">car</code> satisfies <var class="var">proc</var>.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-assp"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">assp</strong> <var class="def-var-arguments">proc alist</var><a class="copiable-link" href="#index-assp"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-assoc-2"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">assoc</strong> <var class="def-var-arguments">obj alist</var><a class="copiable-link" href="#index-assoc-2"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-assv-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">assv</strong> <var class="def-var-arguments">obj alist</var><a class="copiable-link" href="#index-assv-1"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-assq-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">assq</strong> <var class="def-var-arguments">obj alist</var><a class="copiable-link" href="#index-assq-1"> ¶</a></span></dt>
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<dd><p><code class="code">assoc</code>, <code class="code">assv</code>, and <code class="code">assq</code> are identical to the
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procedures provided by Guile’s core library;
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See <a class="xref" href="Alist-Key-Equality.html">Alist Key Equality</a>, for their documentation. <code class="code">assp</code> uses
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the specified predicate function <code class="code">proc</code> to test keys in the
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association list <var class="var">alist</var>.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-cons_002a-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">cons*</strong> <var class="def-var-arguments">obj1 ... obj</var><a class="copiable-link" href="#index-cons_002a-1"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-cons_002a-2"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">cons*</strong> <var class="def-var-arguments">obj</var><a class="copiable-link" href="#index-cons_002a-2"> ¶</a></span></dt>
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<dd><p>This procedure is identical to the one exported by Guile’s core
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library. See <a class="xref" href="List-Constructors.html">List Constructors</a>, for documentation.
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</p></dd></dl>
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Next: <a href="rnrs-sorting.html">rnrs sorting</a>, Previous: <a href="rnrs-bytevectors.html">rnrs bytevectors</a>, Up: <a href="R6RS-Standard-Libraries.html">R6RS Standard Libraries</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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