function follow_network_regex_external in Follow 6

Verify that a url is� a url.

1 string reference to 'follow_network_regex_external'

follow_default_networks in ./follow.module

Retrieves the default networks available.

File

./follow.module, line 630

Allows users to add links to their social network profiles.

Code

function follow_network_regex_external() {

  // @see http://j.mp/2Ol4gj
  return '
    /^(https?|ftp):\\/\\/(?#                                      protocol
    )(([a-z0-9$_\\.\\+!\\*\'\\(\\),;\\?&=-]|%[0-9a-f]{2})+(?#         username
    )(:([a-z0-9$_\\.\\+!\\*\'\\(\\),;\\?&=-]|%[0-9a-f]{2})+)?(?#      password
    )@)?(?#                                                     auth requires @
    )((([a-z0-9][a-z0-9-]*[a-z0-9]\\.)*(?#                       domain segments AND
    )[a-z]{2}[a-z0-9-]*[a-z0-9](?#                              top level domain OR
    )|(\\d|[1-9]\\d|1\\d{2}|2[0-4][0-9]|25[0-5]\\.){3}(?#
    )(\\d|[1-9]\\d|1\\d{2}|2[0-4][0-9]|25[0-5])(?#                 IP address
    ))(:\\d+)?(?#                                                port
    ))(((\\/+([a-z0-9$_\\.\\+!\\*\'\\(\\),;:@&=-]|%[0-9a-f]{2})*)*(?# path
    )(\\?([a-z0-9$_\\.\\+!\\*\'\\(\\),;:@&=-]|%[0-9a-f]{2})*)(?#      query string
    )?)?)?(?#                                                   path and query string optional
    )(#([a-z0-9$_\\.\\+!\\*\'\\(\\),;:@&=-]|%[0-9a-f]{2})*)?(?#      fragment
    )$/i';
}