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annotate scripts/miscellaneous/recycle.m @ 17804:f3e25230b1f3

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use QCoreApplication if starting with --no-gui * octave-gui.cc (octave_start_gui): Use QApplication when starting the GUI and QCoreApplication if not. (octave_cli_thread::run): Call QCoreApplication::exit instead of QApplication::exit.
author John W. Eaton <jwe@octave.org>
date Wed, 30 Oct 2013 02:08:41 -0400
parents d63878346099
children 6cf253a39fde
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d63878346099 maint: Update copyright notices for release.
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1 ## Copyright (C) 2012-2013 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} {@var{current_state} =} recycle ()
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21 ## @deftypefnx {Function File} {@var{old_state} =} recycle (@var{new_state})
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22 ## Query or set the preference for recycling deleted files.
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23 ##
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24 ## Recycling files, instead of permanently deleting them, is not currently
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25 ## implemented in Octave. To help avoid accidental data loss an error
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26 ## will be raised if an attempt is made to enable file recycling.
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27 ## @seealso{delete}
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28 ## @end deftypefn
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29
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30 ## Author: jwe
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31
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32 function retval = recycle (state)
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33
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34 persistent current_state = "off";
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35
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36 if (nargin > 1)
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37 print_usage ();
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38 endif
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39
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40 if (nargin == 0 || nargout > 0)
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41 retval = current_state;
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42 endif
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43
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44 if (nargin == 1)
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45 if (ischar (state))
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46 if (strcmpi (state, "on"))
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47 error ("recycle: recycling files is not implemented");
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48 elseif (strcmpi (state, "off"))
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49 current_state = "off";
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50 else
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51 error ("recycle: invalid value of STATE = '%s'", state);
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52 endif
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53 else
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54 error ("recycle: STATE must be a character string");
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55 endif
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56 endif
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57
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58 endfunction
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59
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60
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61 %!test
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62 %! recycle ("off");
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63 %! assert (recycle ("off"), "off");
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64
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65 %!error <recycling files is not implemented> recycle ("on")
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66 %!error recycle ("on", "and I mean it")
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67 %!error <STATE must be a character string> recycle (1)
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68