tty.py revision 1191d0148fc971cd8516b80f58b42910af88cd54 
1"""Terminal utilities."""
2
3# Author: Steen Lumholt.
4
5from termios import *
6
7# Indexes for termios list.
8IFLAG = 0
9OFLAG = 1
10CFLAG = 2
11LFLAG = 3
12ISPEED = 4
13OSPEED = 5
14CC = 6
15
16def setraw(fd, when=TCSAFLUSH):
17    """Put terminal into a raw mode."""
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
28def setcbreak(fd, when=TCSAFLUSH):
29    """Put terminal into a cbreak mode."""
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