Something wrong with URL detection

[haojianzong]

It will detect a string like "U.S.A" to be a link. I guess it has something to do with the url {protourl}|{optprotourl} in markdown.grammar. Anyone got any idea how to fix it? Thanks in advance.

[gskbyte]

Well, we could probably make the parts of a link to be longer than three characters... We will have a look.