# File lib/stella/core_ext.rb, line 153
  def linkify!
    self.gsub!(/\b((https?:\/\/|ftps?:\/\/|mailto:|www\.|status\.)([A-Za-z0-9\-_=%&@\?\.\/]+(\/\s)?))\b/) {
      match = $1
      tail  = $3
      case match
      when /^(www|status)/     then  "<a href=\"http://#{match.strip}\">#{match}</a>"
      when /^mailto/  then  "<a href=\"#{match.strip}\">#{tail}</a>"
      else                  "<a href=\"#{match.strip}\">#{match}</a>"
      end
    }
    self
  end