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annotate m-toolbox/classes/+utils/@prog/yes2true.m @ 39:11e3ed9d2115 database-connection-manager

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Implement databases listing in database connection dialog
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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children
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 function out = yes2true(in)
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2 % YES2TRUE converts strings containing 'yes'/'no' into boolean true/false
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3 %
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4 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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5 %
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6 % DESCRIPTION: YES2TRUE converts:
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7 % - strings containing 'yes'/'no' into boolean true/false
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8 % - strings containing 'true'/'false' into boolean true/false
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9 % - double containing 1/0/-1 etc into boolean true/false
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10 %
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11 % CALL: out = yes2true(in)
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12 %
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13 % INPUTS: in - the variable to scan (may be a boolean, a double, or a
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14 % string)
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15 %
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16 % OUTPUTS: out - a boolean value calculated according to the following
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17 % table:
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18 % INPUT CLASS INPUT VALUE OUTPUT VALUE
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19 % boolean true true
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20 % boolean false false
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21 % string 'true' true
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22 % string 'false' false
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23 % string 'yes' true
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24 % string 'no' false
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25 % double >= 1 true
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26 % double <= 0 false
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27 % empty empty false
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28 %
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29 % EXAMPLE: >> pl = plist('variance', 'yes');
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30 % >> v = find(pl, 'variance');
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31 % >> yes2true(v)
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32 % ans =
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33 % 1
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34 %
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35 % VERSION: $Id: yes2true.m,v 1.3 2010/03/23 14:31:27 mauro Exp $
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36 %
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37 % HISTORY: 29-04-2009 M Hueller
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38 % Creation
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39 %
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40 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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41
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42 if isempty(in)
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43 out = false;
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44 elseif ischar(in)
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45 switch lower(in)
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46 case {'yes', 'true', 'on', 'y', '1'}
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47 out = true;
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48 case {'no', 'false', 'off', 'n', '0', '-1'}
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49 out = false;
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50 otherwise
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51 error('Unknown option %s', in);
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52 end
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53 elseif isfloat(in)
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54 out = (in > 0);
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55 elseif islogical(in)
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56 out = in;
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57 else
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58 error('Unsupported type %s', class(in));
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59 end
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60
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61 % END