ociated with the semantic action. These functions must be
   applied to the argument <code class="code">lexbuf</code>, which, in the code generated by
   <code class="code">ocamllex</code>, is bound to the lexer buffer passed to the parsing
   function.</p>

<pre id="VALlexeme">val lexeme : lexbuf -&gt; string</pre><div class="info ">
<div class="info-desc">
<p><code class="code">Lexing.lexeme&nbsp;lexbuf</code> returns the string matched by
           the regular expression.</p>
</div>
</div>

<pre id="VAL