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annotate m-toolbox/classes/+utils/@prog/wrapstring.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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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 function s = wrapstring(s, n)
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2 % WRAPSTRING wraps a string to a cell array of strings with each cell less than n characters long.
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3 %
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4 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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5 %
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6 % DESCRIPTION: WRAPSTRING wraps a string to a cell array of strings with each
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7 % cell less than n characters long.
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8 %
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9 % CALL: s = wrapstring(s, n)
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10 %
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11 % INPUTS: s - String
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12 % n - max length of each cell
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13 %
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14 % OUTPUTS: s - the wrapped cell string
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15 %
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16 % VERSION: $Id: wrapstring.m,v 1.1 2008/06/18 13:35:11 hewitson Exp $
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17 %
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18 % HISTORY: 05-02-2007 M Hewitson
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19 % Creation
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20 %
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21 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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22
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23 % convert to a cell if necessary
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24 if ischar(s)
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25 s = [cellstr(s)];
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26 end
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27
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28 % check it makes sense to proceed.
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29 x = splitstring(s{end}, n);
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30 if strcmp(char(x), char(s))
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31 return
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32 end
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33
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34 % now keep splitting until we are happy.
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35 while length(s{end}) >= n
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36 if length(s) > 1
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37 s1 = s(1:end-1);
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38 else
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39 s1 = [];
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40 end
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41 s2 = splitstring(s{end},n);
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42 if isempty(s2)
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43 break
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44 end
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45 s = [s1 s2];
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46 end
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47
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48 %--------------------------------------------------------------------------
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49 % split string at first ' ' or ','
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50 function s = splitstring(s,n)
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51
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52
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53 % disp(sprintf('- splitting %s', s))
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54 fi = 0;
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55 idx = find(s==' ' | s == ',' | s == '(' | s == '=');
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56 if max(idx) > n
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57 for i=1:length(idx)
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58 if idx(i) > n & fi==0
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59 fi = i;
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60 end
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61 end
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62 j = idx(fi);
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63 s = [cellstr(strtrim(s(1:j))) cellstr(strtrim(s(j+1:end)))];
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64 else
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65 s = [];
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66 return;
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67 end