bsp;=&nbsp;s</code>.</p>

<p>Always return a copy of the argument, even if there is no escape sequence
    in the argument.
    Raise <a href="Scanf.html#EXCEPTIONScan_failure"><code class="code"><span class="constructor">Scanf</span>.<span class="constructor">Scan_failure</span></code></a> if <code class="code">s</code> is not properly escaped (i.e. <code class="code">s</code> has invalid
    escape sequences or special characters that are not properly escaped).
    For instance, <code class="code"><span c