twitter/twitter-text-java — pull request #21 by katsuyan (2012-01-31 04:41:41+00:00)
Title: Extract mentions slightly more strictly

I made extraction of mentions slightly more strict.
Now it does not extract mentions precedented by !, @, #, $, %, & and .
This avoids extracting unintended mentions like "f@KN", which, in turn, reduces spams in users mention section.