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