thing-at-point-uri-schemes

thing-at-point-uri-schemes is a variable defined in `thingatpt.el'.
Its value is

("aaa://" "about:" "acap://" "apt:" "bzr://" "bzr+ssh://" "attachment:/" "chrome://" "cid:" "content://" "crid://" "cvs://" "data:" "dav:" "dict://" "doi:" "dns:" "dtn:" "feed:" "file:/" "finger://" "fish://" "ftp://" "geo:" "git://" "go:" "gopher://" "h323:" "http://" "https://" "im:" "imap://" "info:" "ipp:" "irc://" "irc6://" "ircs://" "iris.beep:" "jar:" "ldap://" "ldaps://" "mailto:" "mid:" "mtqp://" "mupdate://" "news:" "nfs://" "nntp://" "opaquelocktoken:" "pop://" "pres:" "resource://" "rmi://" "rsync://" "rtsp://" "rtspu://" "service:" "sftp://" "sip:" "sips:" "smb://" "sms:" "snmp://" "soap.beep://" "soap.beeps://" "ssh://" "svn://" "svn+ssh://" "tag:" "tel:" "telnet://" "tftp://" "tip://" "tn3270://" "udp://" "urn:" "uuid:" "vemmi://" "webcal://" "xri://" "xmlrpc.beep://" "xmlrpc.beeps://" "z39.50r://" "z39.50s://" "xmpp:" "fax:" "mms://" "mmsh://" "modem:" "prospero:" "snews:" "wais://")

Documentation:
List of URI schemes recognized by `thing-at-point-url-at-point'.
Each string in this list should correspond to the start of a
URI's scheme component, up to and including the trailing // if
the scheme calls for that to be present.