|  | """Terminal utilities.""" | 
|  |  | 
|  | # Author: Steen Lumholt. | 
|  |  | 
|  | from termios import * | 
|  |  | 
|  | __all__ = ["setraw", "setcbreak"] | 
|  |  | 
|  | # Indexes for termios list. | 
|  | IFLAG = 0 | 
|  | OFLAG = 1 | 
|  | CFLAG = 2 | 
|  | LFLAG = 3 | 
|  | ISPEED = 4 | 
|  | OSPEED = 5 | 
|  | CC = 6 | 
|  |  | 
|  | def setraw(fd, when=TCSAFLUSH): | 
|  | """Put terminal into a raw mode.""" | 
|  | mode = tcgetattr(fd) | 
|  | mode[IFLAG] = mode[IFLAG] & ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON) | 
|  | mode[OFLAG] = mode[OFLAG] & ~(OPOST) | 
|  | mode[CFLAG] = mode[CFLAG] & ~(CSIZE | PARENB) | 
|  | mode[CFLAG] = mode[CFLAG] | CS8 | 
|  | mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON | IEXTEN | ISIG) | 
|  | mode[CC][VMIN] = 1 | 
|  | mode[CC][VTIME] = 0 | 
|  | tcsetattr(fd, when, mode) | 
|  |  | 
|  | def setcbreak(fd, when=TCSAFLUSH): | 
|  | """Put terminal into a cbreak mode.""" | 
|  | mode = tcgetattr(fd) | 
|  | mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON) | 
|  | mode[CC][VMIN] = 1 | 
|  | mode[CC][VTIME] = 0 | 
|  | tcsetattr(fd, when, mode) |