Tetris.py 文件源码

def prepare_tty():                       
    "set the terminal in char mode (return each keyboard press at once) and"\
    " switch off echoing of this input; return the original settings"
    stdin_fd = sys.stdin.fileno()  # will most likely be 0  ;->
    old_stdin_config = termios.tcgetattr(stdin_fd)
    [ iflag, oflag, cflag, lflag, ispeed, ospeed, cc ] = \
        termios.tcgetattr(stdin_fd)
    cc[termios.VTIME] = 1
    cc[termios.VMIN] = 1
    iflag = iflag & ~(termios.IGNBRK |
                      termios.BRKINT |
                      termios.PARMRK |
                      termios.ISTRIP |
                      termios.INLCR |
                      termios.IGNCR |
                      #termios.ICRNL |
                      termios.IXON)
    #  oflag = oflag & ~termios.OPOST
    cflag = cflag | termios.CS8
    lflag = lflag & ~(termios.ECHO |
                      termios.ECHONL |
                      termios.ICANON |
                      # termios.ISIG |
                      termios.IEXTEN)
    termios.tcsetattr(stdin_fd, termios.TCSANOW,
                      [ iflag, oflag, cflag, lflag, ispeed, ospeed, cc ])
    return (stdin_fd, old_stdin_config)