/usr/share/octave/packages/general-1.3.4/@dict/get.m is in octave-general 1.3.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | ## Copyright (C) 2009 VZLU Prague, a.s., Czech Republic
##
## This program 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.
##
## This program 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
## this program; if not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn{Function File} {} get (d, key, defv)
## Queries for the values of specified key(s). Unlike indexing, however,
## this does not throw an error if a key is missing but rather substitutes
## a default value. If @var{key} is a cell array, @var{defv} should be either
## a cell array of the same shape as @var{key}, or a singleton cell.
## Non-cell values will be converted to a singleton cell.
## @end deftypefn
## Author: Jaroslav Hajek <highegg@gmail.com>
function val = get (d, key, defv = [])
if (nargin < 2 || nargin > 3)
print_usage ();
endif
if (ischar (key))
i = lookup (d.keys, key, "m");
if (i)
val = d.values{i};
else
val = defv;
endif
elseif (iscellstr (key))
if (! iscell (defv))
val = repmat ({defv}, size (key));
elseif (numel (defv) == 1)
val = repmat (defv, size (key));
elseif (size_equal (key, defv))
val = defv;
else
error ("get: sizes of key & defv must match");
endif
i = lookup (d.keys, key, "m");
mask = i != 0;
val(mask) = d.values(i(mask));
else
error ("get: invalid key value");
endif
endfunction
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