<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">"""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] &amp; ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
    mode[OFLAG] = mode[OFLAG] &amp; ~(OPOST)
    mode[CFLAG] = mode[CFLAG] &amp; ~(CSIZE | PARENB)
    mode[CFLAG] = mode[CFLAG] | CS8
    mode[LFLAG] = mode[LFLAG] &amp; ~(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] &amp; ~(ECHO | ICANON)
    mode[CC][VMIN] = 1
    mode[CC][VTIME] = 0
    tcsetattr(fd, when, mode)
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