g whether or not the range must be
    on a single line.</li>
    <li><em><code>escapes</code></em>: Optional flag indicating whether or not the range end may
    be escaped by a &lsquo;\&rsquo; character.
    The default value is <code>false</code> unless <em>s</em> and <em>e</em> are identical,
    single-character strings. In that case, the default value is <code>true</code>.</li>
    <li><em><code>balanced</code></em>: Optional flag indicating whether or not to match a balanced
    range, like the &ldqu