annotate scripts/prefs/setpref.m @ 13261:9134ca9d4ec8

new functions for Matlab compatibility * prefs/module.mk: New file. * scripts/Makefile.am: Include it. (prefs/PKG_ADD): New target. * addpref.m, getpref.m, ispref.m, rmpref.m, setpref.m, loadprefs.m, saveprefs.m, prefsfile.m: New files.
author John W. Eaton <jwe@octave.org>
date Fri, 30 Sep 2011 22:15:47 -0400
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1 ## Copyright (C) 2011 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} setpref (@var{group}, @var{pref}, @var{val})
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21 ## Set a preference @var{pref} to the given @var{val} in the named
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22 ## preference group @var{group}.
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23 ##
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24 ## The named preference group must be a character string.
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25 ##
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26 ## The preference @var{pref} may be a character string or a cell array
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27 ## of character strings. The corresponding value @var{val} may be any
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28 ## value, or, if @var{pref} is a cell array of strings, @var{val}
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29 ## must be a cell array of values with the same size as @var{pref}.
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30 ##
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31 ## If the named preference or group does not exist, it is added.
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32 ## @seealso{pref, getpref, ispref, rmpref, setpref}
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33 ## @end deftypefn
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34
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35 ## Author: jwe
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36
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37 function setpref (group, pref, val)
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38
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39 if (nargin == 3)
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40 if (ischar (group))
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41 prefs = loadprefs ();
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42 if (ischar (pref))
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43 prefs.(group).(pref) = val;
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44 elseif (iscellstr (pref))
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45 if (size_equal (pref, val))
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46 for i = 1:numel(pref)
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47 prefs.(group).(pref{i}) = val;
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48 endfor
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49 else
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50 error ("size mismatch for pref and val");
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51 endif
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52 else
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53 error ("expecting pref to be a character string or cellstr");
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54 endif
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55 saveprefs (prefs);
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56 else
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57 error ("expecting group to be a character string");
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58 endif
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59 else
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60 print_usage ();
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61 endif
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62
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63 endfunction
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64
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65 %% Testing these functions will require some care to avoid wiping out
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66 %% existing (or creating unwanted) preferences for the user running the
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67 %% tests.