class Gamefic::Messenger

def format(message)
  "<p>#{message.strip}</p>"
    .gsub(/[ \t\r]*\n[ \t\r]*\n[ \t\r]*/, "</p><p>")
    .gsub(/[ \t]*\n[ \t]*/, ' ')
    .gsub(/<p>\s*<p>/, '<p>')
    .gsub(%r{</p>\s*</p>}, '</p>')
end