# File lib/ansi/terminal/termios.rb, line 50 def screen_width(out=STDERR) default_width = ENV['COLUMNS'] || 76 begin 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 rescue Exception default_width end end