Urls:
(?(http:[/][/]|www.)([a-z]|[A-Z]|[-*]|[0-9]|[/.]|[~])*)
E-Mail-Adressen:
(^|[ \t\r\n<;(])((([A-Za-z0-9$_.+%=-])|%[A-Fa-f0-9]{2})+@(([A-Za-z0-9$_.+!*,;/?:%&=-])|%[A-Fa-f0-9]{2})+)
