function caps_check(name, param)
local a = 0
  minetest.register_on_chat_message(function(name,message)
    if string.match(message, "%u%u%u%u") or string.match(message, "%U%u%u%u%u") then
      local a = a + 1
      minetest.chat_send_all("<The All Seeing Eye> Please refrain from using all caps.")
    else
      if a > 4 then
        minetest.chat_send_all("You have really done it now.")
      end
    end
  end)
end