1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
########################################################################
##
## Copyright (C) 1996-2024 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
##
## This file is part of Octave.
##
## Octave is free software: you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <https://www.gnu.org/licenses/>.
##
########################################################################
## -*- texinfo -*-
## @deftypefn {} {@var{str} =} blanks (@var{n})
## Return a string of @var{n} blanks.
##
## For example:
##
## @example
## @group
## blanks (10);
## whos ans
## @result{}
## Attr Name Size Bytes Class
## ==== ==== ==== ===== =====
## ans 1x10 10 char
## @end group
## @end example
## @seealso{repmat}
## @end deftypefn
function str = blanks (n)
if (nargin < 1)
print_usage ();
elseif (! (isscalar (n) && n == fix (n) && n >= 0))
error ("blanks: N must be a non-negative integer");
endif
## If 1:n is empty, the following expression will create an empty
## character string. Otherwise, it will create a row vector.
str(1:n) = " ";
endfunction
## There really isn't that much to test here
%!assert (blanks (0), "")
%!assert (blanks (5), " ")
%!assert (blanks (10), " ")
## Test input validation
%!error <Invalid call> blanks ()
%!error blanks (ones (2))
%!error blanks (2.1)
%!error blanks (-2)
|
