Mercurial > octave-nkf
view scripts/miscellaneous/recycle.m @ 20611:40ed9b46a800
new octave_value::string_value method with optional error message
* ov.h (octave_value::string_vector): New method.
ov-base.cc, ov-base.h (octave_base_value::string_vector):
New default method.
ov-str-mat.cc, ov-str-mat.h (octave_char_matrix_str::string_value):
New method.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 08 Oct 2015 16:43:22 -0400 |
parents | df437a52bcaf |
children |
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## Copyright (C) 2012-2015 John W. Eaton ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {@var{current_state} =} recycle () ## @deftypefnx {Function File} {@var{old_state} =} recycle (@var{new_state}) ## Query or set the preference for recycling deleted files. ## ## When recycling is enabled, commands which would permanently erase files ## instead move them to a temporary location (such as the directory labeled ## Trash). ## ## Programming Note: This function is provided for @sc{matlab} compatibility, ## but recycling is not implemented in Octave. To help avoid accidental data ## loss an error will be raised if an attempt is made to enable file recycling. ## @seealso{delete, rmdir} ## @end deftypefn ## Author: jwe function retval = recycle (state) persistent current_state = "off"; if (nargin > 1) print_usage (); endif if (nargin == 0 || nargout > 0) retval = current_state; endif if (nargin == 1) if (! ischar (state)) error ("recycle: STATE must be a character string"); endif if (strcmpi (state, "on")) error ("recycle: recycling files is not implemented"); elseif (strcmpi (state, "off")) current_state = "off"; else error ("recycle: invalid value of STATE = '%s'", state); endif endif endfunction %!test %! recycle ("off"); %! assert (recycle ("off"), "off"); %!error recycle ("on", "and I mean it") %!error <STATE must be a character string> recycle (1) %!error <recycling files is not implemented> recycle ("on") %!error <invalid value of STATE = 'foobar'> recycle ("foobar")