diff options
| author |  John Cowan
| 2021-07-25 17:26:36 -0400 |
|---|---|---|
| committer | John Cowan
| 2021-07-25 17:26:36 -0400 |
| commit | 37870e3a487c71899e175a54828cc9c69edb5b44 (patch) | |
| tree | ba49509802d83cb64697f376a3f8233f9d645b89 | |
| parent | dtd always first argument (diff) | |
updates
| -rw-r--r-- | srfi-225.html | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/srfi-225.html b/srfi-225.html index a2cded1..c4cd729 100644 --- a/srfi-225.html +++ b/srfi-225.html @@ -240,6 +240,8 @@ one for each of the four procedures: <blockquote><pre>; plist to alist (dict->alist '(1 2 3 4 5 6)) => ((1 . 2) (3 . 4) (5 . 6))</pre></blockquote> <h3 id="dictionary-type-descriptors">Dictionary type descriptors</h3> +<p><code>(dtd?</code> <em>obj</em><code>)</code></p> +<p>Returns <code>#t</code> if <em>obj</em> is a DTD, and <code>#f</code> otherwise.</p> <p><code>(make-dtd</code> <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> @@ -262,8 +264,8 @@ that file.<p> <p>Returns a DTD for manipulating an alist using the equality predicate <em>equal</em>.</p> <blockquote><code>(make-alist-dtd =) => a DTD for alists using numeric equality</code></blockquote> <p>The following DTDs are also exported from this SRFI: -<code>srfi-69-dtd</code>, <code>srfi-125-dtd</code>, <code>srfi-126</code>, -<code>srfi-146-dtd</code>, <code>srfi-224-dtd</code>, <code>plist-dtd</code>, +<code>srfi-69-dtd</code>, <code>hash-table-dtd</code>, <code>srfi-126</code>, +<code>mapping-dtd</code>, <code>hash-mapping-dtd</code>, <code>plist-dtd</code>, <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> |