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## Copyright (C) 2000 Etienne Grossmann <etienne@egdn.net>
## Copyright (C) 2000 Paul Kienzle <pkienzle@users.sf.net>
## Copyright (C) 2012 Olaf Till <i7tiol@t-online.de>
##
## 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} {@var{s} =} setfields(@var{s},@var{key},@var{value}, @dots{})
## Sets @var{s}.@var{key1} = @var{value1}, @var{s}.@var{key2} = @var{value2}, etc, finally
## returning @var{s}.
## For some compatibility and flexibility.
## @seealso{cmpstruct, fields, rmfield, isstruct, getfields, isfield,struct}
## @end deftypefn
function s = setfields (s, varargin)
if ((nargs = nargin ()) == 0)
s = struct ();
elseif (all (size (s) <= 1))
if (rem (nargs, 2))
pairs = reshape (varargin, 2, []);
if (! iscellstr (pairs(1, :)))
error ("setfields: called with non-string key");
endif
if (isempty (s))
s = struct (); # might have been an empty array
endif
s = cell2fields (pairs(2, :), pairs(1, :), 2, s);
else
error ("setfields: expected struct, key1, val1, key2, val2, ...");
endif
else
error ("structure must be scalar or empty");
endif
endfunction
%!assert (setfields ({}, "key", "value"), struct ("key", "value"));
%!shared s, t
%! t = struct ("hello", 1, "world", 2);
%! s = struct ("foo", "bar", "bye", "ciao");
%! t = setfields (t, "foo", "bar", "bye", "ciao");
%!assert ({t.foo t.bye}, {s.foo s.bye})
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