domain resolution broken for .

'''domain resolution is broken for tld root .'''

example: http://to./bxg in user post is parsed as a link only up to but not including the dot, (which is of course the root domain of the Internet)

and thus being output as:

{{{
http://to./bxg
}}}

Note: This URI/URL is a fully valid dns answer (you will notice it parses correctly here in trac) and is just not being recognised as such by the parser.