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annotate scripts/ui/errordlg.m @ 17501:278ef6bd821d

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isprop.m: Overhaul function. * scripts/plot/isprop.m: Add note that input may also be an array of object handles. Use variable names in error() messages. Avoid unnecessary catch block in try/catch statement. Add %!error input validation tests.
author Rik <rik@octave.org>
date Wed, 25 Sep 2013 11:57:10 -0700
parents 1c89599167a6
children
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1 ## Copyright (C) 2010 Martin Hepperle
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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{h} =} errordlg (@var{msg})
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21 ## @deftypefnx {Function File} {@var{h} =} errordlg (@var{msg}, @var{title})
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22 ## Display @var{msg} using an error dialog box.
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23 ##
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24 ## The message may have multiple lines separated by newline characters
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25 ## ("\n"), or it may be a cellstr array with one element for each
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26 ## line. The optional input @var{title} (character string) can be used to
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27 ## set the dialog caption. The default title is @qcode{"Error Dialog"}.
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28 ##
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29 ## The return value is always 1.
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30 ## @seealso{helpdlg, inputdlg, listdlg, msgbox, questdlg, warndlg}
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31 ## @end deftypefn
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32
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33 function retval = errordlg (msg, title = "Error Dialog")
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34
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35 if (nargin < 1 || nargin > 2)
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36 print_usage ();
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37 endif
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38
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39 retval = message_dialog ("errdlg", msg, title, "error");
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40
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41 endfunction
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44 %!demo
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45 %! disp ('- test errordlg with prompt only.');
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46 %! errordlg ('Oops, an expected error occured');
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47
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48 %!demo
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49 %! disp ('- test errordlg with prompt and caption.');
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50 %! errordlg ('Oops another error','This is a very long and informative caption');
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