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<a name="Mapcur-1"></a>
<h4 class="subsubsection">2.7.13.6 Mapcur</h4>

<p>An alternative form of recursive definition is the following.
<a name="index-mapcur"></a>
</p>
<dl compact="compact">
<dt> <em>T27</em></dt>
<dd><p>[[<code>mapcur</code>]] <code><var>p</var></code> = <code>((nil,nil),((nil,nil),(<var>p</var>,nil)))</code>
</p></dd>
</dl>

<p>This form is convenient for applications that cause themselves to be
<a name="index-recursion-3"></a>
applied recursively to a list of arguments. It has this semantics.
</p>
<dl compact="compact">
<dt> <em>P34</em></dt>
<dd><p>([[<code>mapcur</code>]] <code><var>p</var></code>) <code><var>x</var></code> =
[[<code>map meta</code>]] [[<code>distribute</code>]] ([[<code>field</code>]] <code><var>p</var></code>) <code><var>x</var></code>
</p></dd>
</dl>

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