plugin.map 'tumblr deconfigure [:channel]', :action => :deconfigure
plugin.map 'tumblr configure [:channel] :email :pwd [:group]',
:action => :configure,
- :requirements => {:channel => Regexp::Irc::GEN_CHAN, :email => /.+@.+/, :group => /[A-Za-z-]+/}
+ :requirements => {:channel => Regexp::Irc::GEN_CHAN, :email => /\S+@\S+/, :group => /[A-Za-z\-.]+/}