$regex = '#'.
'(?:'.
'(?:'.
- '(?:https?|ftps?|mms|rtsp|gopher|news|nntp|telnet|wais|file|prospero|webcal|xmpp|irc)://'.
+ '(?:https?|ftps?|mms|rtsp|gopher|news|nntp|telnet|wais|file|prospero|webcal|irc)://'.
'|'.
- '(?:mailto|aim|tel):'.
+ '(?:mailto|aim|tel|xmpp):'.
')'.
'[^.\s]+\.[^\s]+'.
'|'.