/**
* If there are images in the step, replace them with placeholders and
* return the modified text.
*/
public static function cutImages($stepText)
{
$tokens = array();
$output = preg_replace_callback('@\\[\\[Image:[^\\]]*\\]\\]@i', function ($m) use(&$tokens) {
$token = 'IMG_' . Wikitext::genRandomString();
$tokens[] = array('token' => $token, 'tag' => $m[0]);
return $token;
}, $stepText);
return array($output, $tokens);
}