/code></em> number of characters.</td>
    </tr>
    <tr>
    <td><code>lpeg.S(string)</code>     </td>
    <td> Matches any character in set <code>string</code>.</td>
    </tr>
    <tr>
    <td><code>lpeg.R("</code><em><code>xy</code></em><code>")</code> </td>
    <td> Matches any character between range <code>x</code> and <code>y</code>.</td>
    </tr>
    <tr>
    <td><code>patt^</code><em><code>n</code></em>         </td>
    <td> Matches at least <em><code>n</code></em> repetitions of <code>patt</code>