protected function _doHeaders_callback_setext($matches)
{
# Terrible hack to check we haven't found an empty list item.
if ('-' == $matches[2] && preg_match('{^-(?: |$)}', $matches[1])) {
return $matches[0];
}
$level = '=' == $matches[2][0] ? 1 : 2;
$block = "<h{$level}>" . $this->runSpanGamut($matches[1]) . "</h{$level}>";
return "\n" . $this->hashBlock($block) . "\n\n";
}