public static function parseLinkTarget($ref)
{
$ref = strtr($ref, "\n", ' ');
$parts = explode(':', $ref, 2);
$valid = -1;
if (count($parts) == 1) {
$page = new WikiPage(explode('/', $ref));
$valid = $page->isValid();
$url = $page->getURL();
} else {
if ($parts[0] == 'wp') {
$url = 'http://en.wikipedia.org/wiki/' . strtr(implode('/', array_map('urlencode', explode('/', $parts[1]))), '+', '_');
$ref = $parts[1] . ' (Wikipedia)';
} else {
$url = $ref;
}
}
return array($url, $ref, $valid);
}