class="mendoza-code">(if-not :w 1)</code></td> <td>Matches a character that is not an ASCII digit or letter.</td></tr>
    <tr><td><code class="mendoza-code">:S</code></td> <td><code class="mendoza-code">(if-not :s 1)</code></td> <td>Matches a character that is not ASCII whitespace.</td></tr>

    <tr><td><code class="mendoza-code">:d+</code></td> <td><code class="mendoza-code">(some :d)</code></td> <td>Matches 1 or more ASCII digits.</td></tr>
    <tr><td><code class="mendoza-code">:a+</code></td> <td><cod