class Pronto::Formatter::CheckstyleFormatter

def add_file_messages(path_messages, file)
  path_messages.each do |message|
    REXML::Element.new('error', file).tap do |e|
      e.attributes['line'] = message.line.new_lineno if message.line
      e.attributes['severity'] = to_checkstyle_severity(message.level)
      e.attributes['message'] = message.msg
      e.attributes['source'] = 'com.puppycrawl.tools.checkstyle.pronto'
    end
  end
end