def __enter__(self):
# save the terminal settings
self.fd = sys.stdin.fileno()
self.new_term = termios.tcgetattr(self.fd)
self.old_term = termios.tcgetattr(self.fd)
# new terminal setting unbuffered
self.new_term[3] = (self.new_term[3] & ~termios.ICANON & ~termios.ECHO)
# switch to unbuffered terminal
termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.new_term)
return self.query_keyboard
python类tcgetattr()的实例源码
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def setupterm():
global settings
update_geometry()
hide_cursor()
do('smkx') # keypad mode
if not settings:
settings = termios.tcgetattr(fd.fileno())
mode = termios.tcgetattr(fd.fileno())
IFLAG = 0
OFLAG = 1
CFLAG = 2
LFLAG = 3
ISPEED = 4
OSPEED = 5
CC = 6
mode[LFLAG] = mode[LFLAG] & ~(termios.ECHO | termios.ICANON | termios.IEXTEN)
mode[CC][termios.VMIN] = 1
mode[CC][termios.VTIME] = 0
termios.tcsetattr(fd, termios.TCSAFLUSH, mode)
def __enter__(self):
global isWindows
if isWindows:
self.readHandle = GetStdHandle(STD_INPUT_HANDLE)
self.readHandle.SetConsoleMode(ENABLE_LINE_INPUT|ENABLE_ECHO_INPUT|ENABLE_PROCESSED_INPUT)
self.curEventLength = 0
self.curKeysLength = 0
self.capturedChars = []
else:
# Save the terminal settings
self.fd = sys.stdin.fileno()
self.new_term = termios.tcgetattr(self.fd)
self.old_term = termios.tcgetattr(self.fd)
# New terminal setting unbuffered
self.new_term[3] = (self.new_term[3] & ~termios.ICANON & ~termios.ECHO)
termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.new_term)
return self
def __enter__(self):
# NOTE: On os X systems, using pty.setraw() fails. Therefor we are using this:
try:
newattr = termios.tcgetattr(self.fileno)
except termios.error:
pass
else:
newattr[tty.LFLAG] = self._patch_lflag(newattr[tty.LFLAG])
newattr[tty.IFLAG] = self._patch_iflag(newattr[tty.IFLAG])
# VMIN defines the number of characters read at a time in
# non-canonical mode. It seems to default to 1 on Linux, but on
# Solaris and derived operating systems it defaults to 4. (This is
# because the VMIN slot is the same as the VEOF slot, which
# defaults to ASCII EOT = Ctrl-D = 4.)
newattr[tty.CC][termios.VMIN] = 1
termios.tcsetattr(self.fileno, termios.TCSANOW, newattr)
# Put the terminal in cursor mode. (Instead of application mode.)
os.write(self.fileno, b'\x1b[?1l')
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def __init__(self):
'''Creates a KBHit object that you can call to do various keyboard things.
'''
if os.name == 'nt':
pass
else:
# Save the terminal settings
self.fd = sys.stdin.fileno()
self.new_term = termios.tcgetattr(self.fd)
self.old_term = termios.tcgetattr(self.fd)
# New terminal setting unbuffered
self.new_term[3] = (self.new_term[3] & ~termios.ICANON & ~termios.ECHO)
termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.new_term)
# Support normal-terminal reset at exit
atexit.register(self.set_normal_term)
def calibrate(self):
"""Detect keylogger file lines format.
"""
term_settings = termios.tcgetattr(sys.stdin)
tty.setraw(sys.stdin)
with open(self.filepath, 'r') as keylog:
keylog.seek(0, 2)
print(config.TERM.clear + '[1/3] Press <Enter>', end='')
sys.stdin.read(1)
print(config.TERM.clear + '[2/3] Press <Ctrl>+R', end='')
sys.stdin.read(1)
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, term_settings)
print(config.TERM.clear + '[3/3] Calibration done')
time.sleep(2)
line = keylog.readlines()[-1].upper()
pattern = r'(<(%s)>)R' % '|'.join(MODIFIERS)
try:
config.CONFIG['chars_skip'] = re.search(pattern, line).start()
except AttributeError:
logger.error('Cannot detect key logger line format. ' +
"Check '%s' content." % self.filepath)
exit(1)
pattern = r'(<(%s)>)R<\2>' % '|'.join(MODIFIERS)
config.CONFIG['format_closing'] = re.search(pattern, line) is not None
config.save()
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def __init__(self):
# setup
CozmoTeleop.settings = termios.tcgetattr(sys.stdin)
atexit.register(self.reset_terminal)
# vars
self.head_angle = STD_HEAD_ANGLE
self.lift_height = STD_LIFT_HEIGHT
# params
self.lin_vel = rospy.get_param('~lin_vel', 0.2)
self.ang_vel = rospy.get_param('~ang_vel', 1.5757)
# pubs
self._head_pub = rospy.Publisher('head_angle', Float64, queue_size=1)
self._lift_pub = rospy.Publisher('lift_height', Float64, queue_size=1)
self._cmd_vel_pub = rospy.Publisher('cmd_vel', Twist, queue_size=1)
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def getecho(self):
'''This returns the terminal echo mode. This returns True if echo is
on or False if echo is off. Child applications that are expecting you
to enter a password often set ECHO False. See waitnoecho().
Not supported on platforms where ``isatty()`` returns False. '''
try:
attr = termios.tcgetattr(self.child_fd)
except termios.error as err:
errmsg = 'getecho() may not be called on this platform'
if err.args[0] == errno.EINVAL:
raise IOError(err.args[0], '%s: %s.' % (err.args[1], errmsg))
raise
self.echo = bool(attr[3] & termios.ECHO)
return self.echo
def __init__(self):
'''Creates a KBHit object that you can call to do various keyboard things.
'''
if os.name == 'nt':
pass
else:
# Save the terminal settings
self.fd = sys.stdin.fileno()
self.new_term = termios.tcgetattr(self.fd)
self.old_term = termios.tcgetattr(self.fd)
# New terminal setting unbuffered
self.new_term[3] = (self.new_term[3] & ~termios.ICANON & ~termios.ECHO)
termios.tcsetattr(self.fd, termios.TCSAFLUSH, self.new_term)
# Support normal-terminal reset at exit
atexit.register(self.set_normal_term)
def get_keypress():
"""Wait for a keypress and return key pressed. This is
the *nix version of this command"""
import termios, fcntl, sys, os
fd = sys.stdin.fileno()
oldterm = termios.tcgetattr(fd)
newattr = termios.tcgetattr(fd)
newattr[3] = newattr[3] & ~termios.ICANON & ~termios.ECHO
termios.tcsetattr(fd, termios.TCSANOW, newattr)
oldflags = fcntl.fcntl(fd, fcntl.F_GETFL)
fcntl.fcntl(fd, fcntl.F_SETFL, oldflags | os.O_NONBLOCK)
try:
while 1:
try:
c = sys.stdin.read(1)
break
except IOError: pass
finally:
termios.tcsetattr(fd, termios.TCSAFLUSH, oldterm)
fcntl.fcntl(fd, fcntl.F_SETFL, oldflags)
return c
def getchar(echo):
if not isatty(sys.stdin):
f = open('/dev/tty')
fd = f.fileno()
else:
fd = sys.stdin.fileno()
f = None
try:
old_settings = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = os.read(fd, 32)
if echo and isatty(sys.stdout):
sys.stdout.write(ch)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
sys.stdout.flush()
if f is not None:
f.close()
except termios.error:
pass
_translate_ch_to_exc(ch)
return ch.decode(get_best_encoding(sys.stdin), 'replace')
def _setecho(fd, state):
errmsg = 'setecho() may not be called on this platform'
try:
attr = termios.tcgetattr(fd)
except termios.error as err:
if err.args[0] == errno.EINVAL:
raise IOError(err.args[0], '%s: %s.' % (err.args[1], errmsg))
raise
if state:
attr[3] = attr[3] | termios.ECHO
else:
attr[3] = attr[3] & ~termios.ECHO
try:
# I tried TCSADRAIN and TCSAFLUSH, but these were inconsistent and
# blocked on some platforms. TCSADRAIN would probably be ideal.
termios.tcsetattr(fd, termios.TCSANOW, attr)
except IOError as err:
if err.args[0] == errno.EINVAL:
raise IOError(err.args[0], '%s: %s.' % (err.args[1], errmsg))
raise
def getecho(self):
'''This returns the terminal echo mode. This returns True if echo is
on or False if echo is off. Child applications that are expecting you
to enter a password often set ECHO False. See waitnoecho().
Not supported on platforms where ``isatty()`` returns False. '''
try:
attr = termios.tcgetattr(self.fd)
except termios.error as err:
errmsg = 'getecho() may not be called on this platform'
if err.args[0] == errno.EINVAL:
raise IOError(err.args[0], '%s: %s.' % (err.args[1], errmsg))
raise
self.echo = bool(attr[3] & termios.ECHO)
return self.echo
