/usr/share/octave/packages/general-1.3.4/@dict/join.m is in octave-general 1.3.4-2.
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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 | ## 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} {} join (d1, d2, joinop)
## Merges two given dictionaries. For common keys, the function @var{joinop} is
## called to combine the two values. If not supplied, values from d2 are taken.
## @end deftypefn
## Author: Jaroslav Hajek <highegg@gmail.com>
function d = join (d1, d2, jop)
if (nargin < 2 || nargin > 3 || ! (isa (d1, "dict") && isa (d2, "dict")))
print_usage ();
endif
keys1 = d1.keys;
keys2 = d2.keys;
[keys, idx] = sort ([keys1; keys2]);
values = [d1.values; d2.values](idx);
n = numel (keys);
if (n > 1)
idx = find (strcmp (keys(1:n-1), keys(2:n)));
keys(idx) = [];
if (nargin == 3)
values(idx+1) = cellfun (jop, values(idx), values(idx+1), "UniformOutput", false);
endif
values(idx) = [];
endif
d = dict;
d.keys = keys;
d.values = values;
endfunction
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