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annotate scripts/prefs/ispref.m @ 16033:23a7661e529a ss-3-7-2

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snapshot version 3.7.2 * configure.ac (AC_INIT): Set version to 3.7.2. (OCTAVE_RELEASE_DATE): Set to 2013-02-09. (OCTAVE_COPYRIGHT): Update year.
author John W. Eaton <jwe@octave.org>
date Sun, 10 Feb 2013 00:59:19 -0500
parents 72c96de7a403
children 1c89599167a6
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72c96de7a403 maint: update copyright notices for 2012
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1 ## Copyright (C) 2012 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} {} ispref (@var{group}, @var{pref})
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21 ## Return true if the named preference @var{pref} exists in the
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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.
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28 ##
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29 ## If @var{pref} is not specified, return true if the preference
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30 ## group @var{group} exists.
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31 ## @seealso{getpref, addpref, setpref, rmpref}
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32 ## @end deftypefn
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33
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34 ## Author: jwe
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35
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36 function retval = ispref (group, pref)
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37
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38 if (nargin == 1)
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39 retval = isfield (loadprefs (), group);
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40 elseif (nargin == 2)
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41 prefs = loadprefs ();
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42 if (isfield (prefs, group))
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43 grp = prefs.(group);
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44 if (ischar (pref) || iscellstr (pref))
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45 retval = isfield (grp, pref);
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46 else
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47 retval = false;
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48 endif
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49 else
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50 retval = false;
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51 endif
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52 else
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53 print_usage ();
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54 endif
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55
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56 endfunction
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57
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58 %% Testing these functions will require some care to avoid wiping out
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59 %% existing (or creating unwanted) preferences for the user running the
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60 %% tests.