uo;).</p>

    <p><a id="lexer.word"></a></p>

    <h3><code>lexer.word</code> (pattern)</h3>

    <p>A pattern that matches a typical word. Words begin with a letter or
      underscore and consist of alphanumeric and underscore characters.</p>

    <p><a id="lexer.xdigit"></a></p>

    <h3><code>lexer.xdigit</code> (pattern)</h3>

    <p>A pattern that matches any hexadecimal digit (&lsquo;0&rsquo;-&lsquo;9&rsquo;, &lsquo;A&rsquo;-&lsquo;F&rsquo;, &lsquo;a&rsquo;-&lsquo;f&rsquo;).</p>

    <h2>Lua <code>l