IS_CHAR_DEVICE is path a character device

e.g. NUL, /dev/null false if file does not exist

inputs
Outputs

inputs

file: path to check
backend: backend to use

Outputs

ok: true if path is a character device
b: backend used

Windows: Console handles CONIN$, CONOUT$, STDIN, STDOUT, STDERR are not detected. Only NUL is detected. in our C-API-based Ffilesystem library, we use GetFileType() with CreateFile() to detect those handles successfully, but they don't work here.

Ref: https://learn.microsoft.com/en-us/windows/console/console-handles

function [ok, b] = is_char_device(file, backend)
arguments
  file string
  backend (1,:) string = ["python", "sys"]
end

o = stdlib.Backend(mfilename(), backend);

if isscalar(file)
  ok = o.func(file);
else
  ok = arrayfun(o.func, file);
end

b = o.backend;

end

IS_CHAR_DEVICE is path a character device

Contents

inputs

Outputs