diff options
| author |  John Cowan
| 2021-07-25 23:30:23 -0400 |
|---|---|---|
| committer |  Arthur A. Gleckler
| 2021-07-26 16:10:31 -0700 |
| commit | ac1bc7f423938c41bf270054482900b72ed77964 (patch) | |
| tree | b12d1200c3606340ab2a6ea7635a43090fe47b23 | |
| parent | new example (diff) | |
exceptions
Diffstat (limited to '')
| -rw-r--r-- | srfi-225.html | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/srfi-225.html b/srfi-225.html index 7467673..26df762 100644 --- a/srfi-225.html +++ b/srfi-225.html @@ -266,8 +266,22 @@ that file.<p> <p><code>(make-alist-dtd</code> <em>equal</em><code>)</code></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> +<h3 id="exceptions">Exceptions</h3> +<p><code>dictionary-error</code> <em>message irritant</em> ... <code>)</code></p> +<p>Returns a dictionary error with the given <em>message</em> (a string) and +<em>irritants</em> (any objects). +If a particular procedure in a DTD cannot be implemented, it instead +should signal an appropriate dictionary exception that can be reliably caught. +<p><code>dictionary-error?</code> <em>obj</em><code>)</code></p> +<p>Returns <code>#t</code> if <em>obj</em> is a dictionary error +and <code>#f</code> otherwise. +<p><code>dictionary-message</code> <em>dictionary-error</em><code>)</code></p> +<p>Returns the message associated with <em>dictionary-error.</em></p> +<p><code>(dictionary-irritants</code> <em>dictionary-error</em><code>)</code></p> +<p>Returns a list of the irritants associated with <em>dictionary-error</em>.</p> +<h3 id="variables">Variables</h3> <p>The following DTDs are also exported from this SRFI: -<code>srfi-69-dtd</code>, <code>hash-table-dtd</code>, <code>srfi-126</code>, +<code>srfi-69-dtd</code>, <code>hash-table-dtd</code>, <code>srfi-126-dtd</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> |