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annotate scripts/miscellaneous/getappdata.m @ 16489:36dba9be680b

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doc: Make documentation compatible with Texinfo 5.0 (bug #38392) * scripts/audio/wavread.m, scripts/miscellaneous/getappdata.m, scripts/miscellaneous/license.m, scripts/miscellaneous/ver.m, scripts/plot/daspect.m, scripts/plot/graphics_toolkit.m, scripts/plot/pbaspect.m, scripts/polynomial/polyval.m, scripts/polynomial/splinefit.m, scripts/set/union.m, scripts/signal/freqz.m: Moved @deftypefnx entries to always immediately follow @deftypefn.
author Amod Mulay <amodmulay1@gmail.com>
date Fri, 22 Mar 2013 17:07:00 -0400
parents 5d3a684236b0
children b10a23fe80bb
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1 ## Copyright (C) 2010-2012 Ben Abbott
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2 ##
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3 ## This program is free software; you can redistribute it and/or modify
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4 ## it under the terms of the GNU General Public License as published by
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5 ## the Free Software Foundation; either version 2 of the License, or
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6 ## (at your option) any later version.
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7 ##
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8 ## This program is distributed in the hope that it will be useful,
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9 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 ## GNU General Public License for more details.
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12 ##
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13 ## You should have received a copy of the GNU General Public License
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14 ## along with Octave; see the file COPYING. If not, see
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15 ## <http://www.gnu.org/licenses/>.
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16
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17 ## -*- texinfo -*-
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18 ## @deftypefn {Function File} {@var{value} =} getappdata (@var{h}, @var{name})
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19 ## @deftypefnx {Function File} {@var{appdata} =} getappdata (@var{h})
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20 ##
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21 ## Return the @var{value} for named application data for the object(s) with
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22 ## handle(s) @var{h}.
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23 ##
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24 ## @code{getappdata(@var{h})} returns a structure, @var{appdata}, whose fields correspond to the appdata
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25 ## properties.
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26 ## @end deftypefn
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27
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28 ## Author: Ben Abbott <bpabbott@mac.com>
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29 ## Created: 2010-07-15
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30
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31 function val = getappdata (h, name)
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32
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33 if (all (ishandle (h)) && nargin == 2 && ischar (name))
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34 ## FIXME - Is there a better way to handle non-existent appdata
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35 ## and missing fields?
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36 val = cell (numel (h), 1);
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37 appdata = struct ();
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38 for nh = 1:numel (h)
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39 try
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40 appdata = get (h(nh), "__appdata__");
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41 end_try_catch
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42 if (! isfield (appdata, name))
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43 appdata.(name) = [];
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44 endif
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45 val(nh) = {appdata.(name)};
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46 endfor
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47 if (nh == 1)
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48 val = val{1};
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49 endif
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50 elseif (ishandle (h) && numel (h) == 1 && nargin == 1)
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51 try
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52 val = get (h, "__appdata__");
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53 catch
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54 val = struct ();
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55 end_try_catch
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56 else
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57 error ("getappdata: invalid input");
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58 endif
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59
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60 endfunction
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61