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update copyright notices
author John W. Eaton <jwe@octave.org>
date Fri, 14 Jan 2011 05:47:45 -0500
parents 9d1a14e12431
children cefd568ea073
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1 ## Copyright (C) 2000-2011 Etienne Grossmann
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2 ## Copyright (C) 2009 VZLU Prague
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3 ##
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4 ## This file is part of Octave.
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5 ##
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6 ## Octave is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by
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8 ## the Free Software Foundation; either version 3 of the License, or (at
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9 ## your option) any later version.
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10 ##
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11 ## Octave is distributed in the hope that it will be useful, but
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ## General Public License for more details.
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15 ##
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with Octave; see the file COPYING. If not, see
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18 ## <http://www.gnu.org/licenses/>.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {[@var{k1}, @dots{}, @var{v1}] =} setfield (@var{s}, @var{k1}, @var{v1}, @dots{})
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22 ## Set a field member in a (nested) structure array. For example:
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23 ##
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24 ## @example
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25 ## @group
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26 ## oo(1,1).f0 = 1;
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27 ## oo = setfield (oo, @{1,2@}, "fd", @{3@}, "b", 6);
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28 ## oo(1,2).fd(3).b == 6
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29 ## @result{} ans = 1
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30 ## @end group
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31 ## @end example
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32 ##
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33 ## Note that the same result as in the above example could be achieved by:
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34 ##
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35 ## @example
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36 ## @group
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37 ## i1 = @{1,2@}; i2 = "fd"; i3 = @{3@}; i4 = "b";
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38 ## oo(i1@{:@}).(i2)(i3@{:@}).(i4) == 6
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39 ## @result{} ans = 1
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40 ## @end group
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41 ## @end example
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42 ## @seealso{getfield, rmfield, isfield, isstruct, fieldnames, struct}
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43 ## @end deftypefn
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44
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45 ## Author: Etienne Grossmann <etienne@cs.uky.edu>
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46
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47 function obj = setfield (obj, varargin)
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48 if (nargin < 3)
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49 print_usage ();
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50 endif
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51 subs = varargin(1:end-1);
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52 rhs = varargin{end};
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53 flds = cellfun (@ischar, subs);
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54 idxs = cellfun (@iscell, subs);
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55 if (all (flds | idxs))
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56 typs = merge (flds, {"."}, {"()"});
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57 obj = subsasgn (obj, struct ("type", typs, "subs", subs), rhs);
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58 else
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59 error ("setfield: invalid index");
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60 endif
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61 endfunction
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62
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63 %!test
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64 %! x.a = "hello";
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65 %! x = setfield(x,"b","world");
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66 %! y = struct("a","hello","b","world");
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67 %! assert(x,y);
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68 %!test
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69 %! oo(1,1).f0= 1;
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70 %! oo = setfield(oo,{1,2},"fd",{3},"b", 6);
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71 %! assert (oo(1,2).fd(3).b, 6)