Mercurial > hg > ltpda

annotate m-toolbox/classes/@plist/find.m @ 45:a59cdb8aaf31 database-connection-manager

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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Tue, 06 Dec 2011 19:07:22 +0100
parents f0afece42f48
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % FIND overloads find routine for a parameter list.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: FIND overloads find routine for a parameter list.
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5 % Returns the value corresponding to the first parameter in
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6 % the list with the search-key.
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7 % An optional argument can be passed so it is assigned to the
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8 % return in case the search-key was not found.
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9 %
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10 % CALL: a = find(pl, 'key')
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11 % a = find(pl, pl)
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12 % a = find(pl, 'key', opt_val)
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13 % a = find(pl, pl, opt_val)
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14 %
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15 %
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16 % EXAMPLES:
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17 %
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18 % 1) a = pl.find('foo') % get the parameter with key 'foo'
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19 % 2) a = pl.find(plist('key', 'WIN')) % get the parameter with key 'WIN'
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20 % 3) a = pl.find('foo', 1) % get the parameter with key 'foo', and get 1
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21 % if the key was not present in the input plist
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22 %
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23 % <a href="matlab:utils.helper.displayMethodInfo('plist', 'find')">Parameters Description</a>
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24 %
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25 % VERSION: $Id: find.m,v 1.25 2011/04/08 08:56:21 hewitson Exp $
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26 %
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27 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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28
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29 function varargout = find(varargin)
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30
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31 %%% Check if this is a call for parameters
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32 if utils.helper.isinfocall(varargin{:})
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33 varargout{1} = getInfo(varargin{3});
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34 return
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35 end
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36
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37 if nargin > 3 && nargin < 2
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38 error('### Incorrect inputs')
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39 end
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40
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41 pl = varargin{1};
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42 if isa(varargin{2}, 'plist')
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43 key = varargin{2}.find('key');
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44 else
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45 key = varargin{2};
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46 end
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47 def_val = [];
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48 if nargin == 3
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49 def_val = varargin{3};
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50 end
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51
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52 %%%%%%%%%% Some plausibility checks %%%%%%%%%%
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53 if numel(pl) ~= 1
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54 error('### This function could only work with one plist-object');
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55 end
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56
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57 if ~ischar(key)
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58 error('### The ''key'' must be a string but it is from the class %s.', class(key));
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59 end
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60
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61 if ~isempty(pl.params)
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62 dkeys = {pl.params(:).key};
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63 else
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64 dkeys = {''};
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65 end
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66
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67 % Get value we want
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68 matches = strcmpi(key, dkeys);
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69 if any(matches)
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70 val = pl.params(matches).getVal;
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71 else
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72 val = def_val;
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73 end
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74
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75 if isa(val, 'ltpda_obj')
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76 varargout{1} = copy(val, 1);
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77 else
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78 varargout{1} = val;
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79 end
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80 end
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81
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82 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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83 % Local Functions %
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84 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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85
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86 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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87 %
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88 % FUNCTION: getInfo
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89 %
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90 % DESCRIPTION: Get Info Object
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91 %
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92 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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93
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94 function ii = getInfo(varargin)
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95 if nargin == 1 && strcmpi(varargin{1}, 'None')
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96 sets = {};
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97 pl = [];
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98 else
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99 sets = {'Default'};
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100 pl = getDefaultPlist;
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101 end
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102 % Build info object
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103 ii = minfo(mfilename, 'plist', 'ltpda', utils.const.categories.helper, '$Id: find.m,v 1.25 2011/04/08 08:56:21 hewitson Exp $', sets, pl);
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104 ii.setModifier(false);
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105 ii.setArgsmin(1);
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106 end
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107
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108 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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109 %
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110 % FUNCTION: getDefaultPlist
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111 %
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112 % DESCRIPTION: Get Default Plist
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113 %
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114 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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115
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116 function pl = getDefaultPlist()
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117
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118 pl = plist();
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119
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120 % Key
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121 p = param({'key', 'A key to search for.'}, paramValue.EMPTY_STRING);
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122 pl.append(p);
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123
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124 end
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125