Lib/tty.py

   1 # tty.py -- Terminal utilities.
   2 # Author: Steen Lumholt.
   3
   4 from TERMIOS import *
   5 from termios import *
   6
   7 # Indexes for termios list.
   8 IFLAG = 0
   9 OFLAG = 1
  10 CFLAG = 2
  11 LFLAG = 3
  12 ISPEED = 4
  13 OSPEED = 5
  14 CC = 6
  15
  16 # Put terminal into a raw mode.
  17 def setraw(fd, when=TCSAFLUSH):
  18         mode = tcgetattr(fd)
  19         mode[IFLAG] = mode[IFLAG] & ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
  20         mode[OFLAG] = mode[OFLAG] & ~(OPOST)
  21         mode[CFLAG] = mode[CFLAG] & ~(CSIZE | PARENB)
  22         mode[CFLAG] = mode[CFLAG] | CS8
  23         mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON | IEXTEN | ISIG)
  24         mode[CC][VMIN] = 1
  25         mode[CC][VTIME] = 0
  26         tcsetattr(fd, when, mode)
  27
  28 # Put terminal into a cbreak mode.
  29 def setcbreak(fd, when=TCSAFLUSH):
  30         mode = tcgetattr(fd)
  31         mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON)
  32         mode[CC][VMIN] = 1
  33         mode[CC][VTIME] = 0
  34         tcsetattr(fd, when, mode)
  35