note 29579 added to ref.pcre

I have a big problem : I have to create a regular expression with a string text. I can do it with very simple regular expression like /^\d+$/ But i need complex reg exp. How could i do it ? -- http://www.php.net/manual/en/ref.pcre.php http://master.php.net/manage/user-notes.php?action=edit+29579 http://master.php.net/manage/user-notes.php?action=delete+29579 http://master.php.net/manage/user-notes.php?action=reject+29579