_filter_url_parse_email_links

_filter_url_parse_email_links($match)

function _filter_url_parse_email_links($match) {
  // The $i:th parenthesis in the regexp contains the URL.
  $i = 0;

  $match[$i] = Html::decodeEntities($match[$i]);
  $caption = Html::escape(_filter_url_trim($match[$i]));
  $match[$i] = Html::escape($match[$i]);
  return '<a href="mailto:' . $match[$i] . '">' . $caption . '</a>';
}