 not matched.
</p>

<p>
<tt>Comment-text</tt> can contain any characters except for a closing parenthesis <tt>)</tt>. The text in the comment is
completely ignored by the regex parser and it used solely for readability purposes.
</p>

<h3>Repeat operators</h3>
<a name="repeat-operator"></a>

<table bgcolor="#e0e0f0" cellpadding="10">
<tr><td>
<pre>
<i>repeat-operator</i> ::= <b>"*"</b>
                |   <b>"+"</b>
                |   <b>"?"</b>
                |   <i>bound</i>
                |   <b>"*?"<