Python termios 模块,PARMRK 实例源码

我们从Python开源项目中,提取了以下5个代码示例,用于说明如何使用termios.PARMRK

项目:hack-the-mainframe    作者:Roberthasalltehswag    | 项目源码 | 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)
项目:cligraphy    作者:Netflix-Skunkworks    | 项目源码 | 文件源码
def _fix_tty(self):
        """Set suitable tty options
        """
        assert self.tcattr is not None
        iflag, oflag, cflag, lflag, ispeed, ospeed, chars = self.tcattr  # pylint:disable=unpacking-non-sequence
        # equivalent to cfmakeraw
        iflag &= ~(termios.IGNBRK | termios.BRKINT | termios.PARMRK | termios.ISTRIP | termios.INLCR |
                   termios.IGNCR | termios.ICRNL | termios.IXON)
        oflag &= ~termios.OPOST
        lflag &= ~(termios.ECHO | termios.ECHONL | termios.ICANON | termios.ISIG | termios.IEXTEN)
        cflag &= ~(termios.CSIZE | termios.PARENB)
        cflag |= termios.CS8
        termios.tcsetattr(STDIN, termios.TCSANOW, [iflag, oflag, cflag, lflag, ispeed, ospeed, chars])
项目:tools    作者:InfraSIM    | 项目源码 | 文件源码
def read_single_keypress(msg):
    """Waits for a single keypress on stdin.

    This is a silly function to call if you need to do it a lot because it has
    to store stdin's current setup, setup stdin for reading single keystrokes
    then read the single keystroke then revert stdin back after reading the
    keystroke.

    Returns the character of the key that was pressed (zero on
    KeyboardInterrupt which can happen when a signal gets handled)

    """
    import termios, fcntl, sys, os
    fd = sys.stdin.fileno()
    # save old state
    flags_save = fcntl.fcntl(fd, fcntl.F_GETFL)
    attrs_save = termios.tcgetattr(fd)
    # make raw - the way to do this comes from the termios(3) man page.
    attrs = list(attrs_save) # copy the stored version to update
    # iflag
    attrs[0] &= ~(termios.IGNBRK | termios.BRKINT | termios.PARMRK 
                  | termios.ISTRIP | termios.INLCR | termios. IGNCR 
                  | termios.ICRNL | termios.IXON )
    # oflag
    attrs[1] &= ~termios.OPOST
    # cflag
    attrs[2] &= ~(termios.CSIZE | termios. PARENB)
    attrs[2] |= termios.CS8
    # lflag
    attrs[3] &= ~(termios.ECHONL | termios.ECHO | termios.ICANON
                  | termios.ISIG | termios.IEXTEN)
    termios.tcsetattr(fd, termios.TCSANOW, attrs)
    # turn off non-blocking
    fcntl.fcntl(fd, fcntl.F_SETFL, flags_save & ~os.O_NONBLOCK)
    sys.stdout.write(msg)
    sys.stdout.flush()
    # read a single keystroke
    try:
        ret = sys.stdin.read(1) # returns a single character
    except KeyboardInterrupt: 
        ret = 0
    finally:
        # restore old state
        termios.tcsetattr(fd, termios.TCSAFLUSH, attrs_save)
        fcntl.fcntl(fd, fcntl.F_SETFL, flags_save)
    return ret
项目:simdem    作者:Azure    | 项目源码 | 文件源码
def get_instruction_key(self):
        """Waits for a single keypress on stdin.

        This is a silly function to call if you need to do it a lot because it has
        to store stdin's current setup, setup stdin for reading single keystrokes
        then read the single keystroke then revert stdin back after reading the
        keystroke.

        Returns the character of the key that was pressed (zero on
        KeyboardInterrupt which can happen when a signal gets handled)

        This method is licensed under cc by-sa 3.0 
        Thanks to mheyman http://stackoverflow.com/questions/983354/how-do-i-make-python-to-wait-for-a-pressed-key\
        """
        import termios, fcntl, sys, os
        fd = sys.stdin.fileno()
        # save old state
        flags_save = fcntl.fcntl(fd, fcntl.F_GETFL)
        attrs_save = termios.tcgetattr(fd)
        # make raw - the way to do this comes from the termios(3) man page.
        attrs = list(attrs_save) # copy the stored version to update
        # iflag
        attrs[0] &= ~(termios.IGNBRK | termios.BRKINT | termios.PARMRK 
                      | termios.ISTRIP | termios.INLCR | termios. IGNCR 
                      | termios.ICRNL | termios.IXON )
        # oflag
        attrs[1] &= ~termios.OPOST
        # cflag
        attrs[2] &= ~(termios.CSIZE | termios. PARENB)
        attrs[2] |= termios.CS8
        # lflag
        attrs[3] &= ~(termios.ECHONL | termios.ECHO | termios.ICANON
                      | termios.ISIG | termios.IEXTEN)
        termios.tcsetattr(fd, termios.TCSANOW, attrs)
        # turn off non-blocking
        fcntl.fcntl(fd, fcntl.F_SETFL, flags_save & ~os.O_NONBLOCK)
        # read a single keystroke
        try:
            ret = sys.stdin.read(1) # returns a single character
        except KeyboardInterrupt:
            ret = 0
        finally:
            # restore old state
            termios.tcsetattr(fd, termios.TCSAFLUSH, attrs_save)
            fcntl.fcntl(fd, fcntl.F_SETFL, flags_save)
        return ret
项目:skaff    作者:jhxie    | 项目源码 | 文件源码
def key_get() -> str:
    """
    Waits for a single keypress on stdin.

    This is a silly function to call if you need to do it a lot because it has
    to store stdin's current setup, setup stdin for reading single keystrokes
    then read the single keystroke then revert stdin back after reading the
    keystroke.

    Returns the character of the key that was pressed (zero on
    KeyboardInterrupt which can happen when a signal gets handled)

    Reference (StackOverflow):
    /questions/983354/how-do-i-make-python-to-wait-for-a-pressed-key
    """
    if "posix" == os.name:
        fd = sys.stdin.fileno()
        # save old state
        flags_save = fcntl.fcntl(fd, fcntl.F_GETFL)
        attrs_save = termios.tcgetattr(fd)
        # make raw - the way to do this comes from the termios(3) man page.
        attrs = list(attrs_save)  # copy the stored version to update
        # iflag
        attrs[0] &= ~(termios.IGNBRK | termios.BRKINT | termios.PARMRK
                      | termios.ISTRIP | termios.INLCR | termios. IGNCR
                      | termios.ICRNL | termios.IXON)
        # oflag
        attrs[1] &= ~termios.OPOST
        # cflag
        attrs[2] &= ~(termios.CSIZE | termios. PARENB)
        attrs[2] |= termios.CS8
        # lflag
        attrs[3] &= ~(termios.ECHONL | termios.ECHO | termios.ICANON
                      | termios.ISIG | termios.IEXTEN)
        termios.tcsetattr(fd, termios.TCSANOW, attrs)
        # turn off non-blocking
        fcntl.fcntl(fd, fcntl.F_SETFL, flags_save & ~os.O_NONBLOCK)
        # read a single keystroke
        try:
            ret = sys.stdin.read(1)  # returns a single character
        except KeyboardInterrupt:
            ret = str()
        finally:
            # restore old state
            termios.tcsetattr(fd, termios.TCSAFLUSH, attrs_save)
            fcntl.fcntl(fd, fcntl.F_SETFL, flags_save)
        return ret
    elif "nt" == os.name:
        try:
            # 'getch' by default returns a 'bytes' object;
            # so an extra conversion is required
            ret = msvcrt.getch().decode()
        except KeyboardInterrupt:
            ret = str()
        return ret
# -------------------------------- FUNCTIONS ----------------------------------