public function auto_link_text_callback($matches)
{
$max_url_length = 150;
$max_depth_if_over_length = 2;
$ellipsis = '…';
$url_full = $matches[0];
$url_short = '';
if (strlen($url_full) > $max_url_length) {
$parts = parse_url($url_full);
$url_short = $parts['scheme'] . '://' . preg_replace('/^www\\./', '', $parts['host']) . '/';
$path_components = explode('/', trim($parts['path'], '/'));
foreach ($path_components as $dir) {
$url_string_components[] = $dir . '/';
}
if (!empty($parts['query'])) {
$url_string_components[] = '?' . $parts['query'];
}
if (!empty($parts['fragment'])) {
$url_string_components[] = '#' . $parts['fragment'];
}
for ($k = 0; $k < count($url_string_components); ++$k) {
$curr_component = $url_string_components[$k];
if ($k >= $max_depth_if_over_length || strlen($url_short) + strlen($curr_component) > $max_url_length) {
if ($k == 0 && strlen($url_short) < $max_url_length) {
// Always show a portion of first directory
$url_short .= substr($curr_component, 0, $max_url_length - strlen($url_short));
}
$url_short .= $ellipsis;
break;
}
$url_short .= $curr_component;
}
} else {
$url_short = $url_full;
}
// return "<a rel=\"nofollow\" href=\"$url_full\" target='_blank'>$url_short</a>";
return "<a href=\"{$url_full}\">{$url_short}</a>";
}