module RTUI::TTY

def get_width
FIXME: I don't know how portable it is. Works Linux/OSX.
gin
tiocgwinsz = 0x5413
data = [0, 0, 0, 0].pack("SSSS")
if @out.ioctl(tiocgwinsz, data) >= 0 then
  rows, cols, xpixels, ypixels = data.unpack("SSSS")
  if cols >= 0 then cols else default_width end
else
  default_width
end
scue Exception
default_width
d