/usr/share/doc/ruby1.8-examples/examples/cbreak.rb is in ruby1.8-examples 1.8.7.352-2ubuntu1.6.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | # ioctl example works on Sun
CBREAK = 0x00000002
ECHO = 0x00000008
TIOCGETP = 0x40067408
TIOCSETP = 0x80067409
def cbreak ()
set_cbreak(true)
end
def cooked ()
set_cbreak(false)
end
def set_cbreak (on)
tty = "\0" * 256
STDIN.ioctl(TIOCGETP, tty)
ttys = tty.unpack("C4 S")
if on
ttys[4] |= CBREAK
ttys[4] &= ~ECHO
else
ttys[4] &= ~CBREAK
ttys[4] |= ECHO
end
tty = ttys.pack("C4 S")
STDIN.ioctl(TIOCSETP, tty)
end
cbreak();
print("this is no-echo line: ");
readline().print
cooked();
print("this is echo line: ");
readline()
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