ROOT get root path

ROOT(P) returns the root path of P. root is the root_name + root_directory.

function r = root(p)
arguments
  p (1,1) string
end

r = stdlib.root_name(p);

if ~stdlib.len(r)
  if strncmp(p, "/", 1)
    r = "/";
  end

  return
end

if ispc && strcmp(r, p)
  return
end

r = strcat(r, "/");

end

%!assert(root(''), '')
%!assert(root('/'), '/')
%!test
%! if ispc
%!   assert(root('C:\'), 'C:/')
%!   assert(root('C:/'), 'C:/')
%!   assert(root('C:'), 'C:')
%!   assert(root('C'), '')
%! endif

Published with MATLAB® R2024b