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annotate Dictionary.m @ 1037:2d7ba44340d0 feature/burgers1d

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Pass scheme specific parameters as cell array. This will enabale constructDiffOps to be more general. In addition, allow for schemes returning function handles as diffOps, which is currently how non-linear schemes such as Burgers1d are implemented.
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 18 Jan 2019 09:02:02 +0100
parents ba0fee896b41
children
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40
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1 % TODO
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2 % Documentation
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3 % Should the storage be done in some other way?
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4 % Cell array as keys?
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5 % Some possibility to load and save to a matfile?
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6 % May be load and save from outside is enough.
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7 % Get and set functions called by subsref and subsasgn?
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8 % Unit tests.
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9
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10
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11 classdef Dictionary
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12 properties
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13 store
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14 end
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15
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16 methods
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17 function obj = Dictionary()
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18 obj.store = struct();
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19 end
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20
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21 function s = getStore(obj)
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22 s = obj.store;
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23 end
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24
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25 function display(obj)
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26 if length(fieldnames(obj.store)) == 0
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27 fprintf('%s is an empty Dictionary\n',inputname(1));
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28 return
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29 end
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30
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31 lineformat = [inputname(1) '(%s) = %s\n'];
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32
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33 display_impl(obj.store,'');
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34
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35 function display_impl(s, path)
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36 if ~isstruct(s)
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37 fprintf(lineformat,path(3:end), value2str(s));
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38 % fprintf(') = %s\n', value2str(s));
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39 % fprintf('%s(', objName);
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40 return
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41 end
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42
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43 fn = fieldnames(s);
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44
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45 for i = 1:length(fn)
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46 display_impl(s.(fn{i}), [path ', ' fn{i}(2:end)]);
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47 end
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48
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49 end
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50
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51 function str = value2str(val)
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52 if isnumeric(val) || ischar(val)
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53 str = mat2str(val);
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54 else
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55 str = class(val);
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56 end
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57 end
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58 end
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59
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60 % B = obj(i)
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61 function B = subsref(obj,S)
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62 switch S.type
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63 case '()'
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64 Sf = obj.subs2dotSubs(S);
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65 try
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66 B = subsref(obj.store,Sf);
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67 catch ME
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68 if strcmp(ME.identifier,'MATLAB:nonExistentField')
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69 error('Reference to non-existent entry %s',toString(S.subs));
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70 else
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71 throw(ME);
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72 end
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73 end
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74 otherwise
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75 B = builtin('subsref', obj, S);
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76 % error('Unsupported indexing operator: %s',S.type);
40
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77 end
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78 end
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79
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80 % A(i) = B
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81 function obj = subsasgn(obj,S,B);
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82 switch S.type
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83 case '()'
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84 Sf = obj.subs2dotSubs(S);
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85 obj.store = subsasgn(obj.store,Sf,B);
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86 otherwise
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87 error('Unsupported indexing operator: %s',S.type);
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88 end
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89 end
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90
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91 function Sf = subs2dotSubs(obj,S)
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92 for i = 1:length(S.subs)
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93 Sf(i).type = '.';
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94 Sf(i).subs = obj.getFieldname(S.subs{i});
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95 end
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96 end
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97
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98 % Should probably use mat2str with some kind of normalization to make all variables valied fieldname
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99 % and make it possible to recover the value
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100 function fName = getFieldname(obj, val)
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101 if ~ischar(val)
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102 val = toString(val);
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103 end
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104
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105 fName = matlab.lang.makeValidName(val);
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106 end
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107 end
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108 end