cc reactor display

rednet.open("front")
monitor = peripheral.wrap("right")
local msg
local _, height = monitor.getSize()
monitor.setCursorPos(1, height)

while true do
    _, msg, _ = rednet.receive()
    reactor_stat = string.match(msg, "^[^:]*")
    buf_stat = string.match(msg, "[^:]*$")
    monitor.scroll(1)
    monitor.setCursorPos(1, height)
    if reactor_stat == "ON" then
        monitor.setTextColor(colors.lime)
    else
        monitor.setTextColor(colors.red)
    end
    monitor.write(reactor_stat)
    monitor.setTextColor(colors.white)
    monitor.write(buf_stat)
end