A high-level interface to stty and ioctl.
Set the terminal attributes for
Attributes are specified symbolically using the
names from the
stty(1) command. In addition,
(not args ...) may be used to negate the listed symbols.
thunk with the
settings in effect
during its dynamic extent, resetting the original settings
when it returns.
thunk with the "raw" (no canonical or echo) options
needed for a terminal application.
Returns the current terminal width in characters of
which must be a port or a file descriptor.
Returns the current terminal dimensions, as a list of character width
and height, of
x, which must be a port or a file descriptor.