Example for the login tag:

<a href="./ucp.php?mode=login&amp;redirect=index.php" title="Login" accesskey="x" role="menuitem">'#$A#9#9#9#9'<i class="icon fa-power-off fa-fw" aria-hidden="true"></i><span>Login</span>'#$A#9#9#9'</a>

The regex would need to be: ([^"]+(?=" title="Login")), but better would be: href="(.+?mode=login.+?)" to be independent of language etc. by using parts of the url as the "marker" for the regex.