<blockquote><pre>; plist to alist

(dict-&gt;alist &#39;(1 2 3 4 5 6)) =&gt; ((1 . 2) (3 . 4) (5 . 6))</pre></blockquote>

<h3 id="dictionary-type-descriptors">Dictionary type descriptors</h3>

<p><code>(make-dtd</code>&nbsp;<em>arg</em> …<code>)</code></p>

<p>Returns a new dictionary type providing procedures that allow manipulation of dictionaries of that type. The <em>args</em> are alternately <em>procnames</em> and corresponding <em>procs</em>.</p>

<p>A <em>procname</em> argument is a symbol which is the same as one of the procedures defined in this SRFI (other than those in this section), and a <em>proc</em> argument is the specific procedure implementing it for this type. These procedures only need to handle a full-length argument list (except when defining <code>dict-ref</code> and <code>dict-update!</code>), as the other defaults have already been supplied by the framework.</p>

<p>Returns a DTD for manipulating an alist using the equality predicate <em>equal</em>.</p>

<blockquote><code>(make-alist-dtd =) =&gt; a DTD for alists using numeric equality</code></blockquote>

<p>The following DTDs are also exported from this SRFI:

<code>alist-eqv-dtd</code>, and <code>alist-equal-dtd</code>.

The last two provide DTDs for alists using <code>eqv?</code>

and <code>equal?</code> respectively.</p>