1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2007 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | ///\ingroup lemon_io |
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20 | ///\file |
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21 | ///\brief Lemon Format reader. |
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22 | |
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23 | |
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24 | #ifndef LEMON_LEMON_READER_H |
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25 | #define LEMON_LEMON_READER_H |
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26 | |
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27 | |
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28 | #include <iostream> |
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29 | #include <fstream> |
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30 | #include <string> |
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31 | #include <vector> |
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32 | #include <algorithm> |
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33 | #include <map> |
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34 | #include <memory> |
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35 | |
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36 | #include <lemon/error.h> |
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37 | #include <lemon/graph_utils.h> |
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38 | #include <lemon/bits/utility.h> |
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39 | #include <lemon/bits/item_reader.h> |
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40 | |
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41 | #include <lemon/dim2.h> |
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42 | |
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43 | #include <lemon/concept_check.h> |
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44 | #include <lemon/concepts/maps.h> |
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45 | |
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46 | namespace lemon { |
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47 | |
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48 | namespace _reader_bits { |
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49 | |
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50 | template <typename T> |
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51 | bool operator<(T, T) { |
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52 | throw DataFormatError("Label is not comparable"); |
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53 | } |
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54 | |
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55 | template <typename T> |
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56 | struct Less { |
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57 | bool operator()(const T& p, const T& q) const { |
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58 | return p < q; |
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59 | } |
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60 | }; |
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61 | |
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62 | template <typename Item> |
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63 | class ItemLabelReader { |
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64 | public: |
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65 | |
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66 | bool isLabelReader() { return true; } |
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67 | |
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68 | void readLabel(std::istream&, Item&) {} |
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69 | |
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70 | template <class _ItemLabelReader> |
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71 | struct Constraints { |
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72 | void constraints() { |
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73 | bool b = reader.isLabelReader(); |
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74 | ignore_unused_variable_warning(b); |
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75 | Item item; |
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76 | reader.readLabel(is, item); |
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77 | } |
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78 | _ItemLabelReader& reader; |
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79 | std::istream& is; |
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80 | }; |
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81 | |
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82 | }; |
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83 | |
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84 | template <typename Item> |
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85 | class ItemReader { |
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86 | public: |
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87 | void read(std::istream&, Item&) {} |
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88 | |
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89 | template <class _ItemReader> |
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90 | struct Constraints { |
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91 | void constraints() { |
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92 | Item item; |
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93 | reader.read(is, item); |
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94 | } |
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95 | _ItemReader& reader; |
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96 | std::istream& is; |
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97 | }; |
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98 | |
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99 | }; |
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100 | |
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101 | template <typename Map> |
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102 | struct Ref { typedef Map& Type; }; |
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103 | template <typename Map> |
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104 | struct Arg { typedef Map& Type; }; |
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105 | |
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106 | template <typename Graph, typename Map> |
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107 | class ForwardComposeMap { |
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108 | public: |
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109 | typedef typename Graph::UEdge Key; |
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110 | typedef typename Map::Value Value; |
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111 | |
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112 | ForwardComposeMap(const Graph& _graph, typename Arg<Map>::Type _map) |
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113 | : graph(_graph), map(_map) {} |
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114 | |
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115 | void set(const Key& key, const Value& val) { |
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116 | map.set(graph.direct(key, true), val); |
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117 | } |
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118 | |
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119 | private: |
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120 | const Graph& graph; |
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121 | typename Ref<Map>::Type map; |
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122 | }; |
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123 | |
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124 | template <typename Graph, typename Map> |
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125 | ForwardComposeMap<Graph, Map> |
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126 | forwardComposeMap(const Graph& graph, const Map& map) { |
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127 | return ForwardComposeMap<Graph, Map>(graph, map); |
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128 | } |
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129 | |
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130 | template <typename Graph, typename Map> |
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131 | ForwardComposeMap<Graph, Map> |
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132 | forwardComposeMap(const Graph& graph, Map& map) { |
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133 | return ForwardComposeMap<Graph, Map>(graph, map); |
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134 | } |
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135 | |
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136 | template <typename Graph, typename Map> |
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137 | class BackwardComposeMap { |
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138 | public: |
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139 | typedef typename Graph::UEdge Key; |
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140 | typedef typename Map::Value Value; |
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141 | |
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142 | BackwardComposeMap(const Graph& _graph, typename Arg<Map>::Type _map) |
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143 | : graph(_graph), map(_map) {} |
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144 | |
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145 | void set(const Key& key, const Value& val) { |
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146 | map.set(graph.direct(key, false), val); |
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147 | } |
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148 | |
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149 | private: |
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150 | const Graph& graph; |
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151 | typename Ref<Map>::Type map; |
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152 | }; |
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153 | |
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154 | |
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155 | template <typename Graph, typename Map> |
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156 | BackwardComposeMap<Graph, Map> |
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157 | backwardComposeMap(const Graph& graph, const Map& map) { |
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158 | return BackwardComposeMap<Graph, Map>(graph, map); |
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159 | } |
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160 | |
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161 | template <typename Graph, typename Map> |
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162 | BackwardComposeMap<Graph, Map> |
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163 | backwardComposeMap(const Graph& graph, Map& map) { |
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164 | return BackwardComposeMap<Graph, Map>(graph, map); |
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165 | } |
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166 | |
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167 | template <typename Graph, typename Map> |
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168 | struct Ref<ForwardComposeMap<Graph, Map> > { |
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169 | typedef ForwardComposeMap<Graph, Map> Type; |
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170 | }; |
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171 | template <typename Graph, typename Map> |
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172 | struct Arg<ForwardComposeMap<Graph, Map> > { |
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173 | typedef const ForwardComposeMap<Graph, Map>& Type; |
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174 | }; |
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175 | |
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176 | template <typename Graph, typename Map> |
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177 | struct Ref<BackwardComposeMap<Graph, Map> > { |
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178 | typedef BackwardComposeMap<Graph, Map> Type; |
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179 | }; |
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180 | template <typename Graph, typename Map> |
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181 | struct Arg<BackwardComposeMap<Graph, Map> > { |
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182 | typedef const BackwardComposeMap<Graph, Map>& Type; |
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183 | }; |
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184 | |
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185 | template <typename Map> |
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186 | struct Ref<dim2::XMap<Map> > { |
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187 | typedef dim2::XMap<Map> Type; |
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188 | }; |
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189 | template <typename Map> |
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190 | struct Arg<dim2::XMap<Map> > { |
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191 | typedef const dim2::XMap<Map>& Type; |
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192 | }; |
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193 | |
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194 | template <typename Map> |
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195 | struct Ref<dim2::YMap<Map> > { |
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196 | typedef dim2::YMap<Map> Type; |
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197 | }; |
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198 | template <typename Map> |
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199 | struct Arg<dim2::YMap<Map> > { |
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200 | typedef const dim2::YMap<Map>& Type; |
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201 | }; |
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202 | |
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203 | |
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204 | template <typename _Item> |
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205 | class MapReaderBase; |
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206 | |
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207 | template <typename _Item> |
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208 | class MapInverterBase : public MapReaderBase<_Item> { |
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209 | public: |
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210 | typedef _Item Item; |
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211 | virtual void read(std::istream&, const Item&) = 0; |
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212 | virtual Item read(std::istream&) const = 0; |
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213 | |
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214 | virtual MapInverterBase<_Item>* getInverter() { |
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215 | return this; |
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216 | } |
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217 | }; |
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218 | |
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219 | template <typename _Item, typename _Map, typename _Reader> |
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220 | class MapReaderInverter : public MapInverterBase<_Item> { |
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221 | public: |
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222 | typedef _Item Item; |
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223 | typedef _Reader Reader; |
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224 | typedef typename Reader::Value Value; |
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225 | typedef _Map Map; |
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226 | typedef std::map<Value, Item, _reader_bits::Less<Value> > Inverse; |
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227 | |
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228 | typename _reader_bits::Ref<Map>::Type map; |
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229 | Reader reader; |
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230 | Inverse inverse; |
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231 | |
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232 | MapReaderInverter(typename _reader_bits::Arg<Map>::Type _map, |
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233 | const Reader& _reader) |
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234 | : map(_map), reader(_reader) {} |
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235 | |
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236 | virtual ~MapReaderInverter() {} |
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237 | |
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238 | virtual void read(std::istream& is, const Item& item) { |
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239 | Value value; |
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240 | reader.read(is, value); |
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241 | map.set(item, value); |
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242 | typename Inverse::iterator it = inverse.find(value); |
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243 | if (it == inverse.end()) { |
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244 | inverse.insert(std::make_pair(value, item)); |
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245 | } else { |
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246 | throw DataFormatError("Multiple label occurence"); |
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247 | } |
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248 | } |
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249 | |
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250 | virtual Item read(std::istream& is) const { |
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251 | Value value; |
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252 | reader.read(is, value); |
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253 | typename Inverse::const_iterator it = inverse.find(value); |
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254 | if (it != inverse.end()) { |
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255 | return it->second; |
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256 | } else { |
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257 | ErrorMessage msg; |
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258 | msg << "Invalid label error: " << value; |
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259 | throw DataFormatError(msg.message()); |
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260 | } |
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261 | } |
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262 | }; |
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263 | |
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264 | template <typename _Item, typename _Reader> |
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265 | class SkipReaderInverter : public MapInverterBase<_Item> { |
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266 | public: |
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267 | typedef _Item Item; |
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268 | typedef _Reader Reader; |
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269 | typedef typename Reader::Value Value; |
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270 | typedef std::map<Value, Item, _reader_bits::Less<Value> > Inverse; |
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271 | |
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272 | Reader reader; |
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273 | |
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274 | SkipReaderInverter(const Reader& _reader) |
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275 | : reader(_reader) {} |
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276 | |
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277 | virtual ~SkipReaderInverter() {} |
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278 | |
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279 | virtual void read(std::istream& is, const Item& item) { |
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280 | Value value; |
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281 | reader.read(is, value); |
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282 | typename Inverse::iterator it = inverse.find(value); |
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283 | if (it == inverse.end()) { |
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284 | inverse.insert(std::make_pair(value, item)); |
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285 | } else { |
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286 | throw DataFormatError("Multiple label occurence error"); |
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287 | } |
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288 | } |
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289 | |
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290 | virtual Item read(std::istream& is) const { |
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291 | Value value; |
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292 | reader.read(is, value); |
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293 | typename Inverse::const_iterator it = inverse.find(value); |
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294 | if (it != inverse.end()) { |
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295 | return it->second; |
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296 | } else { |
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297 | ErrorMessage msg; |
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298 | msg << "Invalid label error: " << value; |
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299 | throw DataFormatError(msg.message()); |
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300 | } |
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301 | } |
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302 | |
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303 | private: |
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304 | Inverse inverse; |
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305 | }; |
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306 | |
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307 | template <typename _Item> |
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308 | class MapReaderBase { |
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309 | public: |
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310 | typedef _Item Item; |
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311 | |
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312 | MapReaderBase() { _touched = false; } |
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313 | |
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314 | void touch() { _touched = true; } |
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315 | bool touched() const { return _touched; } |
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316 | |
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317 | virtual ~MapReaderBase() {} |
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318 | |
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319 | virtual void read(std::istream& is, const Item& item) = 0; |
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320 | virtual MapInverterBase<_Item>* getInverter() = 0; |
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321 | |
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322 | private: |
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323 | bool _touched; |
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324 | |
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325 | }; |
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326 | |
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327 | template <typename _Item, typename _Map, typename _Reader> |
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328 | class MapReader : public MapReaderBase<_Item> { |
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329 | public: |
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330 | typedef _Map Map; |
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331 | typedef _Reader Reader; |
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332 | typedef typename Reader::Value Value; |
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333 | typedef _Item Item; |
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334 | |
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335 | typename _reader_bits::Ref<Map>::Type map; |
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336 | Reader reader; |
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337 | |
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338 | MapReader(typename _reader_bits::Arg<Map>::Type _map, |
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339 | const Reader& _reader) |
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340 | : map(_map), reader(_reader) {} |
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341 | |
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342 | virtual ~MapReader() {} |
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343 | |
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344 | virtual void read(std::istream& is, const Item& item) { |
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345 | Value value; |
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346 | reader.read(is, value); |
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347 | map.set(item, value); |
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348 | } |
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349 | |
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350 | virtual MapInverterBase<_Item>* getInverter() { |
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351 | return new MapReaderInverter<Item, Map, Reader>(map, reader); |
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352 | } |
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353 | }; |
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354 | |
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355 | |
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356 | template <typename _Item, typename _Reader> |
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357 | class SkipReader : public MapReaderBase<_Item> { |
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358 | public: |
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359 | typedef _Reader Reader; |
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360 | typedef typename Reader::Value Value; |
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361 | typedef _Item Item; |
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362 | |
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363 | Reader reader; |
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364 | SkipReader(const Reader& _reader) : reader(_reader) {} |
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365 | |
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366 | virtual ~SkipReader() {} |
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367 | |
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368 | virtual void read(std::istream& is, const Item&) { |
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369 | Value value; |
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370 | reader.read(is, value); |
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371 | } |
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372 | |
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373 | virtual MapInverterBase<Item>* getInverter() { |
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374 | return new SkipReaderInverter<Item, Reader>(reader); |
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375 | } |
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376 | }; |
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377 | |
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378 | template <typename _Item> |
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379 | class LabelReaderBase { |
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380 | public: |
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381 | typedef _Item Item; |
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382 | virtual ~LabelReaderBase() {} |
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383 | virtual Item read(std::istream& is) const = 0; |
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384 | virtual bool isLabelReader() const = 0; |
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385 | }; |
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386 | |
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387 | template <typename _Item, typename _BoxedLabelReader> |
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388 | class LabelReader : public LabelReaderBase<_Item> { |
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389 | public: |
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390 | typedef _Item Item; |
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391 | typedef _BoxedLabelReader BoxedLabelReader; |
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392 | |
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393 | const BoxedLabelReader& boxedLabelReader; |
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394 | |
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395 | LabelReader(const BoxedLabelReader& _boxedLabelReader) |
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396 | : boxedLabelReader(_boxedLabelReader) {} |
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397 | |
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398 | virtual Item read(std::istream& is) const { |
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399 | Item item; |
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400 | boxedLabelReader.readLabel(is, item); |
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401 | return item; |
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402 | } |
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403 | |
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404 | virtual bool isLabelReader() const { |
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405 | return boxedLabelReader.isLabelReader(); |
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406 | } |
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407 | }; |
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408 | |
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409 | template <typename _Item> |
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410 | class ItemStore { |
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411 | public: |
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412 | |
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413 | typedef _Item Item; |
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414 | |
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415 | ItemStore(Item& _item) : item(&_item) { |
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416 | _touched = false; |
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417 | } |
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418 | |
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419 | void touch() { _touched = true; } |
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420 | bool touched() const { return _touched; } |
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421 | |
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422 | void read(const Item& _item) { |
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423 | *item = _item; |
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424 | } |
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425 | |
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426 | private: |
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427 | Item* item; |
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428 | bool _touched; |
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429 | }; |
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430 | |
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431 | class ValueReaderBase { |
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432 | public: |
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433 | virtual void read(std::istream&) {}; |
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434 | ValueReaderBase() { _touched = false; } |
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435 | |
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436 | void touch() { _touched = true; } |
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437 | bool touched() const { return _touched; } |
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438 | |
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439 | virtual ~ValueReaderBase() {} |
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440 | private: |
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441 | bool _touched; |
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442 | }; |
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443 | |
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444 | template <typename _Value, typename _Reader> |
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445 | class ValueReader : public ValueReaderBase { |
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446 | public: |
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447 | typedef _Value Value; |
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448 | typedef _Reader Reader; |
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449 | |
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450 | ValueReader(Value& _value, const Reader& _reader) |
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451 | : value(_value), reader(_reader) {} |
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452 | |
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453 | virtual void read(std::istream& is) { |
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454 | reader.read(is, value); |
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455 | } |
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456 | private: |
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457 | Value& value; |
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458 | Reader reader; |
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459 | }; |
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460 | |
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461 | } |
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462 | |
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463 | /// \ingroup lemon_io |
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464 | /// \brief Lemon Format reader class. |
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465 | /// |
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466 | /// The Lemon Format contains several sections. We do not want to |
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467 | /// determine what sections are in a lemon file we give only a framework |
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468 | /// to read a section oriented format. |
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469 | /// |
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470 | /// In the Lemon Format each section starts with a line containing a |
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471 | /// \c \@ character on the first not white space position. This line |
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472 | /// is the header line of the section. Each of the next lines belong |
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473 | /// to this section until a line starting with \c \@ character is |
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474 | /// found. This line can start a new section or it can close the |
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475 | /// file with the \c \@end line. The file format ignores the empty |
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476 | /// and comment lines. The line is comment line if it starts with a |
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477 | /// \c # character. |
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478 | /// |
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479 | /// The framework provides an abstract LemonReader::SectionReader class |
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480 | /// that defines the interface of a SectionReader. The SectionReader |
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481 | /// has the \c header() member function that gets a header line string and |
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482 | /// decides if it wants to process the next section. Several SectionReaders |
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483 | /// can be attached to a LemonReader and the first attached that can |
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484 | /// process the section will be used. Its \c read() member will be called |
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485 | /// with a stream containing the section. From this stream the empty and |
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486 | /// comment lines are filtered out. |
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487 | /// |
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488 | /// \relates GraphReader |
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489 | /// \relates NodeSetReader |
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490 | /// \relates EdgeSetReader |
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491 | /// \relates NodesReader |
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492 | /// \relates EdgesReader |
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493 | /// \relates AttributeReader |
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494 | class LemonReader { |
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495 | private: |
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496 | |
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497 | class FilterStreamBuf : public std::streambuf { |
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498 | public: |
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499 | |
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500 | typedef std::streambuf Parent; |
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501 | typedef Parent::char_type char_type; |
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502 | FilterStreamBuf(std::istream& is, int& num) |
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503 | : _is(is), _base(0), _eptr(0), |
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504 | _num(num), skip_state(after_endl) {} |
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505 | |
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506 | protected: |
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507 | |
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508 | enum skip_state_type { |
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509 | no_skip, |
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510 | after_endl, |
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511 | comment_line |
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512 | }; |
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513 | |
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514 | char_type small_buf[1]; |
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515 | |
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516 | |
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517 | std::istream& _is; |
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518 | |
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519 | char_type* _base; |
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520 | char_type* _eptr; |
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521 | |
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522 | int& _num; |
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523 | |
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524 | skip_state_type skip_state; |
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525 | |
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526 | |
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527 | char_type* base() { return _base; } |
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528 | |
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529 | char_type* eptr() { return _eptr; } |
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530 | |
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531 | int_type blen() { return _eptr - _base; } |
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532 | |
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533 | void setb(char_type* buf, int_type len) { |
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534 | _base = buf; |
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535 | _eptr = buf + len; |
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536 | } |
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537 | |
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538 | virtual std::streambuf* setbuf(char *buf, std::streamsize len) { |
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539 | if (base()) return 0; |
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540 | if (buf != 0 && len >= int(sizeof(small_buf))) { |
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541 | setb(buf, len); |
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542 | } else { |
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543 | setb(small_buf, sizeof(small_buf)); |
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544 | } |
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545 | setg(0, 0, 0); |
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546 | return this; |
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547 | } |
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548 | |
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549 | bool put_char(char c) { |
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550 | switch (skip_state) { |
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551 | case no_skip: |
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552 | switch (c) { |
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553 | case '\n': |
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554 | skip_state = after_endl; |
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555 | return true; |
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556 | default: |
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557 | return true; |
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558 | } |
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559 | case after_endl: |
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560 | switch (c) { |
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561 | case '@': |
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562 | return false; |
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563 | case '\n': |
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564 | return false; |
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565 | case '#': |
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566 | skip_state = comment_line; |
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567 | return false; |
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568 | default: |
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569 | if (!isspace(c)) { |
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570 | skip_state = no_skip; |
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571 | return true; |
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572 | } else { |
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573 | return false; |
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574 | } |
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575 | } |
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576 | break; |
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577 | case comment_line: |
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578 | switch (c) { |
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579 | case '\n': |
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580 | skip_state = after_endl; |
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581 | return false; |
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582 | default: |
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583 | return false; |
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584 | } |
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585 | } |
---|
586 | return false; |
---|
587 | } |
---|
588 | |
---|
589 | virtual int_type underflow() { |
---|
590 | char c; |
---|
591 | if (_is.read(&c, 1)) { |
---|
592 | _is.putback(c); |
---|
593 | if (c == '@') { |
---|
594 | return EOF; |
---|
595 | } |
---|
596 | } else { |
---|
597 | return EOF; |
---|
598 | } |
---|
599 | char_type *ptr; |
---|
600 | for (ptr = base(); ptr != eptr(); ++ptr) { |
---|
601 | if (_is.read(&c, 1)) { |
---|
602 | if (c == '\n') ++_num; |
---|
603 | if (put_char(c)) { |
---|
604 | *ptr = c; |
---|
605 | } else { |
---|
606 | if (skip_state == after_endl && c == '@') { |
---|
607 | _is.putback('@'); |
---|
608 | break; |
---|
609 | } |
---|
610 | --ptr; |
---|
611 | } |
---|
612 | } else { |
---|
613 | break; |
---|
614 | } |
---|
615 | } |
---|
616 | setg(base(), base(), ptr); |
---|
617 | return *base(); |
---|
618 | } |
---|
619 | |
---|
620 | virtual int_type sync() { |
---|
621 | return EOF; |
---|
622 | } |
---|
623 | |
---|
624 | public: |
---|
625 | |
---|
626 | int line_num() const { |
---|
627 | int r = _num; |
---|
628 | for (char_type* p = gptr(); p != egptr(); ++p) { |
---|
629 | if (*p == '\n') --r; |
---|
630 | } |
---|
631 | return r; |
---|
632 | } |
---|
633 | |
---|
634 | }; |
---|
635 | |
---|
636 | public: |
---|
637 | |
---|
638 | /// \brief Abstract base class for reading a section. |
---|
639 | /// |
---|
640 | /// This class has an \c header() member function what get a |
---|
641 | /// header line string and decides if it want to process the next |
---|
642 | /// section. Several SectionReaders can be attached to an LemonReader |
---|
643 | /// and the first attached what can process the section will be used. |
---|
644 | /// Its \c read() member will called with a stream contains the section. |
---|
645 | /// From this stream the empty lines and comments are filtered out. |
---|
646 | class SectionReader { |
---|
647 | friend class LemonReader; |
---|
648 | protected: |
---|
649 | /// \brief Constructor for SectionReader. |
---|
650 | /// |
---|
651 | /// Constructor for SectionReader. It attach this reader to |
---|
652 | /// the given LemonReader. |
---|
653 | SectionReader(LemonReader& reader) { |
---|
654 | reader.attach(*this); |
---|
655 | } |
---|
656 | |
---|
657 | virtual ~SectionReader() {} |
---|
658 | |
---|
659 | /// \brief Gives back true when the SectionReader can process |
---|
660 | /// the section with the given header line. |
---|
661 | /// |
---|
662 | /// It gives back true when the SectionReader can process |
---|
663 | /// the section with the given header line. |
---|
664 | virtual bool header(const std::string& line) = 0; |
---|
665 | |
---|
666 | /// \brief Reader function of the section. |
---|
667 | /// |
---|
668 | /// It reads the content of the section. |
---|
669 | virtual void read(std::istream& is) = 0; |
---|
670 | |
---|
671 | /// \brief The given section missing in the file. |
---|
672 | /// |
---|
673 | /// The given section missing in the file. |
---|
674 | virtual void missing() {}; |
---|
675 | }; |
---|
676 | |
---|
677 | /// \brief Constructor for LemonReader. |
---|
678 | /// |
---|
679 | /// Constructor for LemonReader which reads from the given stream. |
---|
680 | LemonReader(std::istream& _is) |
---|
681 | : is(&_is), own_is(false) {} |
---|
682 | |
---|
683 | /// \brief Constructor for LemonReader. |
---|
684 | /// |
---|
685 | /// Constructor for LemonReader which reads from the given file. |
---|
686 | LemonReader(const std::string& filename) |
---|
687 | : is(0), own_is(true) { |
---|
688 | is = new std::ifstream(filename.c_str()); |
---|
689 | if (is->fail()) { |
---|
690 | throw FileOpenError(filename); |
---|
691 | } |
---|
692 | } |
---|
693 | |
---|
694 | /// \brief Desctructor for LemonReader. |
---|
695 | /// |
---|
696 | /// Desctructor for LemonReader. |
---|
697 | ~LemonReader() { |
---|
698 | if (own_is) { |
---|
699 | delete is; |
---|
700 | } |
---|
701 | } |
---|
702 | |
---|
703 | private: |
---|
704 | LemonReader(const LemonReader&); |
---|
705 | void operator=(const LemonReader&); |
---|
706 | |
---|
707 | void attach(SectionReader& reader) { |
---|
708 | readers.push_back(std::make_pair(&reader, false)); |
---|
709 | } |
---|
710 | |
---|
711 | public: |
---|
712 | /// \brief Executes the LemonReader. |
---|
713 | /// |
---|
714 | /// It executes the LemonReader. |
---|
715 | void run() { |
---|
716 | int line_num = 0; |
---|
717 | std::string line; |
---|
718 | |
---|
719 | SectionReaders::iterator it; |
---|
720 | while ((++line_num, getline(*is, line)) && line.find("@end") != 0) { |
---|
721 | for (it = readers.begin(); it != readers.end(); ++it) { |
---|
722 | if (it->first->header(line)) { |
---|
723 | it->second = true; |
---|
724 | char buf[2048]; |
---|
725 | FilterStreamBuf buffer(*is, line_num); |
---|
726 | |
---|
727 | try { |
---|
728 | buffer.pubsetbuf(buf, sizeof(buf)); |
---|
729 | std::istream ss(&buffer); |
---|
730 | it->first->read(ss); |
---|
731 | break; |
---|
732 | } catch (DataFormatError& error) { |
---|
733 | error.line(buffer.line_num()); |
---|
734 | throw; |
---|
735 | } |
---|
736 | } |
---|
737 | } |
---|
738 | } |
---|
739 | for (it = readers.begin(); it != readers.end(); ++it) { |
---|
740 | if (!it->second) { |
---|
741 | try { |
---|
742 | it->first->missing(); |
---|
743 | } catch (DataFormatError& error) { |
---|
744 | error.line(line_num); |
---|
745 | throw; |
---|
746 | } |
---|
747 | } |
---|
748 | } |
---|
749 | } |
---|
750 | |
---|
751 | |
---|
752 | private: |
---|
753 | |
---|
754 | std::istream* is; |
---|
755 | bool own_is; |
---|
756 | |
---|
757 | typedef std::vector<std::pair<SectionReader*, bool> > SectionReaders; |
---|
758 | SectionReaders readers; |
---|
759 | |
---|
760 | }; |
---|
761 | |
---|
762 | /// \ingroup section_io |
---|
763 | /// \brief SectionReader for reading a graph's nodeset. |
---|
764 | /// |
---|
765 | /// The lemon format can store multiple graph nodesets with several |
---|
766 | /// maps. The nodeset section's header line is \c \@nodeset \c |
---|
767 | /// nodeset_name, but the \c nodeset_name may be empty. |
---|
768 | /// |
---|
769 | /// The first line of the section contains the names of the maps separated |
---|
770 | /// with white spaces. Each next lines describes a node in the nodeset, and |
---|
771 | /// contains the mapped values for each map. |
---|
772 | /// |
---|
773 | /// If the nodeset contains an \c "label" named map then it will be regarded |
---|
774 | /// as id map. This map should contain only unique values and when the |
---|
775 | /// \c readLabel() member will read a value from the given stream it will |
---|
776 | /// give back that node which is mapped to this value. |
---|
777 | /// |
---|
778 | /// \relates LemonReader |
---|
779 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
780 | class NodeSetReader : public LemonReader::SectionReader { |
---|
781 | typedef LemonReader::SectionReader Parent; |
---|
782 | public: |
---|
783 | |
---|
784 | typedef _Graph Graph; |
---|
785 | typedef _Traits Traits; |
---|
786 | typedef typename Graph::Node Node; |
---|
787 | typedef typename Traits::Skipper DefaultSkipper; |
---|
788 | |
---|
789 | /// \brief Constructor. |
---|
790 | /// |
---|
791 | /// Constructor for NodeSetReader. It creates the NodeSetReader and |
---|
792 | /// attach it into the given LemonReader. The nodeset reader will |
---|
793 | /// add the read nodes to the given Graph. The reader will read |
---|
794 | /// the section when the \c section_name and the \c _name are the same. |
---|
795 | NodeSetReader(LemonReader& _reader, |
---|
796 | Graph& _graph, |
---|
797 | const std::string& _name = std::string(), |
---|
798 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
799 | : Parent(_reader), graph(_graph), name(_name), skipper(_skipper) {} |
---|
800 | |
---|
801 | |
---|
802 | /// \brief Destructor. |
---|
803 | /// |
---|
804 | /// Destructor for NodeSetReader. |
---|
805 | virtual ~NodeSetReader() { |
---|
806 | for (typename MapReaders::iterator it = readers.begin(); |
---|
807 | it != readers.end(); ++it) { |
---|
808 | delete it->second; |
---|
809 | } |
---|
810 | } |
---|
811 | |
---|
812 | private: |
---|
813 | NodeSetReader(const NodeSetReader&); |
---|
814 | void operator=(const NodeSetReader&); |
---|
815 | |
---|
816 | public: |
---|
817 | |
---|
818 | /// \brief Add a new node map reader command for the reader. |
---|
819 | /// |
---|
820 | /// Add a new node map reader command for the reader. |
---|
821 | template <typename Map> |
---|
822 | NodeSetReader& readNodeMap(std::string label, Map& map) { |
---|
823 | return _readMap< |
---|
824 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
825 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
826 | } |
---|
827 | |
---|
828 | template <typename Map> |
---|
829 | NodeSetReader& readNodeMap(std::string label, const Map& map) { |
---|
830 | return _readMap< |
---|
831 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
832 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
833 | } |
---|
834 | |
---|
835 | /// \brief Add a new node map reader command for the reader. |
---|
836 | /// |
---|
837 | /// Add a new node map reader command for the reader. |
---|
838 | template <typename ItemReader, typename Map> |
---|
839 | NodeSetReader& readNodeMap(std::string label, Map& map, |
---|
840 | const ItemReader& ir = ItemReader()) { |
---|
841 | return _readMap<ItemReader, Map, typename _reader_bits::Arg<Map>::Type> |
---|
842 | (label, map, ir); |
---|
843 | } |
---|
844 | |
---|
845 | template <typename ItemReader, typename Map> |
---|
846 | NodeSetReader& readNodeMap(std::string label, const Map& map, |
---|
847 | const ItemReader& ir = ItemReader()) { |
---|
848 | return _readMap<ItemReader, Map, typename _reader_bits::Arg<Map>::Type> |
---|
849 | (label, map, ir); |
---|
850 | } |
---|
851 | |
---|
852 | private: |
---|
853 | |
---|
854 | template <typename ItemReader, typename Map, typename MapParameter> |
---|
855 | NodeSetReader& _readMap(std::string label, MapParameter map, |
---|
856 | const ItemReader& ir = ItemReader()) { |
---|
857 | checkConcept<concepts::WriteMap<Node, typename Map::Value>, Map>(); |
---|
858 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, ItemReader>(); |
---|
859 | if (readers.find(label) != readers.end()) { |
---|
860 | ErrorMessage msg; |
---|
861 | msg << "Multiple read rule for node map: " << label; |
---|
862 | throw IoParameterError(msg.message()); |
---|
863 | } |
---|
864 | readers.insert( |
---|
865 | make_pair(label, new _reader_bits:: |
---|
866 | MapReader<Node, Map, ItemReader>(map, ir))); |
---|
867 | return *this; |
---|
868 | } |
---|
869 | |
---|
870 | public: |
---|
871 | |
---|
872 | /// \brief Add a new node map skipper command for the reader. |
---|
873 | /// |
---|
874 | /// Add a new node map skipper command for the reader. |
---|
875 | template <typename ItemReader> |
---|
876 | NodeSetReader& skipNodeMap(std::string label, |
---|
877 | const ItemReader& ir = ItemReader()) { |
---|
878 | if (readers.find(label) != readers.end()) { |
---|
879 | ErrorMessage msg; |
---|
880 | msg << "Multiple read rule for node map: " << label; |
---|
881 | throw IoParameterError(msg.message()); |
---|
882 | } |
---|
883 | readers.insert(make_pair(label, new _reader_bits:: |
---|
884 | SkipReader<Node, ItemReader>(ir))); |
---|
885 | return *this; |
---|
886 | } |
---|
887 | |
---|
888 | protected: |
---|
889 | |
---|
890 | /// \brief Gives back true when the SectionReader can process |
---|
891 | /// the section with the given header line. |
---|
892 | /// |
---|
893 | /// It gives back true when the header line starts with \c \@nodeset, |
---|
894 | /// and the header line's name and the nodeset's name are the same. |
---|
895 | virtual bool header(const std::string& line) { |
---|
896 | std::istringstream ls(line); |
---|
897 | std::string command; |
---|
898 | std::string id; |
---|
899 | ls >> command >> id; |
---|
900 | return command == "@nodeset" && name == id; |
---|
901 | } |
---|
902 | |
---|
903 | /// \brief Reader function of the section. |
---|
904 | /// |
---|
905 | /// It reads the content of the section. |
---|
906 | virtual void read(std::istream& is) { |
---|
907 | std::vector<_reader_bits::MapReaderBase<Node>* > index; |
---|
908 | std::string line; |
---|
909 | |
---|
910 | { |
---|
911 | getline(is, line); |
---|
912 | std::istringstream ls(line); |
---|
913 | std::string id; |
---|
914 | while (ls >> id) { |
---|
915 | typename MapReaders::iterator it = readers.find(id); |
---|
916 | if (it != readers.end()) { |
---|
917 | it->second->touch(); |
---|
918 | index.push_back(it->second); |
---|
919 | } else { |
---|
920 | index.push_back(&skipper); |
---|
921 | } |
---|
922 | if (id == "label") { |
---|
923 | inverter.reset(index.back()->getInverter()); |
---|
924 | index.back() = inverter.get(); |
---|
925 | } |
---|
926 | } |
---|
927 | } |
---|
928 | for (typename MapReaders::iterator it = readers.begin(); |
---|
929 | it != readers.end(); ++it) { |
---|
930 | if (!it->second->touched()) { |
---|
931 | ErrorMessage msg; |
---|
932 | msg << "Map not found in file: " << it->first; |
---|
933 | throw IoParameterError(msg.message()); |
---|
934 | } |
---|
935 | } |
---|
936 | while (getline(is, line)) { |
---|
937 | Node node = graph.addNode(); |
---|
938 | std::istringstream ls(line); |
---|
939 | for (int i = 0; i < int(index.size()); ++i) { |
---|
940 | index[i]->read(ls, node); |
---|
941 | } |
---|
942 | } |
---|
943 | } |
---|
944 | |
---|
945 | virtual void missing() { |
---|
946 | if (readers.empty()) return; |
---|
947 | ErrorMessage msg; |
---|
948 | msg << "NodeSet section not found in file: @nodeset " << name; |
---|
949 | throw IoParameterError(msg.message()); |
---|
950 | } |
---|
951 | |
---|
952 | public: |
---|
953 | |
---|
954 | /// \brief Returns true if the nodeset can give back the node by its label. |
---|
955 | /// |
---|
956 | /// Returns true if the nodeset can give back the node by its label. |
---|
957 | /// It is possible only if an "label" named map was read. |
---|
958 | bool isLabelReader() const { |
---|
959 | return inverter.get() != 0; |
---|
960 | } |
---|
961 | |
---|
962 | /// \brief Gives back the node by its label. |
---|
963 | /// |
---|
964 | /// It reads an id from the stream and gives back which node belongs to |
---|
965 | /// it. It is possible only if there was read an "label" named map. |
---|
966 | void readLabel(std::istream& is, Node& node) const { |
---|
967 | node = inverter->read(is); |
---|
968 | } |
---|
969 | |
---|
970 | private: |
---|
971 | |
---|
972 | typedef std::map<std::string, _reader_bits::MapReaderBase<Node>*> MapReaders; |
---|
973 | MapReaders readers; |
---|
974 | |
---|
975 | Graph& graph; |
---|
976 | std::string name; |
---|
977 | _reader_bits::SkipReader<Node, DefaultSkipper> skipper; |
---|
978 | |
---|
979 | std::auto_ptr<_reader_bits::MapInverterBase<Node> > inverter; |
---|
980 | }; |
---|
981 | |
---|
982 | /// \ingroup section_io |
---|
983 | /// \brief SectionReader for reading a graph's edgeset. |
---|
984 | /// |
---|
985 | /// The lemon format can store multiple graph edgesets with several maps. |
---|
986 | /// The edgeset section's header line is \c \@edgeset \c edgeset_name, but the |
---|
987 | /// \c edgeset_name may be empty. |
---|
988 | /// |
---|
989 | /// The first line of the section contains the names of the maps separated |
---|
990 | /// with white spaces. Each next lines describes an edge in the edgeset. The |
---|
991 | /// line contains the source and the target nodes' id and the mapped |
---|
992 | /// values for each map. |
---|
993 | /// |
---|
994 | /// If the edgeset contains an \c "label" named map then it will be regarded |
---|
995 | /// as id map. This map should contain only unique values and when the |
---|
996 | /// \c readLabel() member will read a value from the given stream it will |
---|
997 | /// give back that edge which is mapped to this value. |
---|
998 | /// |
---|
999 | /// The edgeset reader needs a node id reader to identify which nodes |
---|
1000 | /// have to be connected. If a NodeSetReader reads an "label" named map, |
---|
1001 | /// it will be able to resolve the nodes by ids. |
---|
1002 | /// |
---|
1003 | /// \relates LemonReader |
---|
1004 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
1005 | class EdgeSetReader : public LemonReader::SectionReader { |
---|
1006 | typedef LemonReader::SectionReader Parent; |
---|
1007 | public: |
---|
1008 | |
---|
1009 | typedef _Graph Graph; |
---|
1010 | typedef _Traits Traits; |
---|
1011 | typedef typename Graph::Node Node; |
---|
1012 | typedef typename Graph::Edge Edge; |
---|
1013 | typedef typename Traits::Skipper DefaultSkipper; |
---|
1014 | |
---|
1015 | /// \brief Constructor. |
---|
1016 | /// |
---|
1017 | /// Constructor for EdgeSetReader. It creates the EdgeSetReader and |
---|
1018 | /// attach it into the given LemonReader. The edgeset reader will |
---|
1019 | /// add the read edges to the given Graph. It will use the given |
---|
1020 | /// node id reader to read the source and target nodes of the edges. |
---|
1021 | /// The reader will read the section only if the \c _name and the |
---|
1022 | /// \c edgset_name are the same. |
---|
1023 | template <typename NodeLabelReader> |
---|
1024 | EdgeSetReader(LemonReader& _reader, |
---|
1025 | Graph& _graph, |
---|
1026 | const NodeLabelReader& _nodeLabelReader, |
---|
1027 | const std::string& _name = std::string(), |
---|
1028 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
1029 | : Parent(_reader), graph(_graph), name(_name), skipper(_skipper) { |
---|
1030 | checkConcept<_reader_bits::ItemLabelReader<Node>, NodeLabelReader>(); |
---|
1031 | nodeLabelReader.reset(new _reader_bits:: |
---|
1032 | LabelReader<Node, NodeLabelReader>(_nodeLabelReader)); |
---|
1033 | } |
---|
1034 | /// \brief Destructor. |
---|
1035 | /// |
---|
1036 | /// Destructor for EdgeSetReader. |
---|
1037 | virtual ~EdgeSetReader() { |
---|
1038 | for (typename MapReaders::iterator it = readers.begin(); |
---|
1039 | it != readers.end(); ++it) { |
---|
1040 | delete it->second; |
---|
1041 | } |
---|
1042 | } |
---|
1043 | |
---|
1044 | private: |
---|
1045 | EdgeSetReader(const EdgeSetReader&); |
---|
1046 | void operator=(const EdgeSetReader&); |
---|
1047 | |
---|
1048 | public: |
---|
1049 | |
---|
1050 | /// \brief Add a new edge map reader command for the reader. |
---|
1051 | /// |
---|
1052 | /// Add a new edge map reader command for the reader. |
---|
1053 | template <typename Map> |
---|
1054 | EdgeSetReader& readEdgeMap(std::string label, Map& map) { |
---|
1055 | return _readMap< |
---|
1056 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
1057 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
1058 | } |
---|
1059 | |
---|
1060 | template <typename Map> |
---|
1061 | EdgeSetReader& readEdgeMap(std::string label, const Map& map) { |
---|
1062 | return _readMap< |
---|
1063 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
1064 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
1065 | } |
---|
1066 | |
---|
1067 | /// \brief Add a new edge map reader command for the reader. |
---|
1068 | /// |
---|
1069 | /// Add a new edge map reader command for the reader. |
---|
1070 | template <typename ItemReader, typename Map> |
---|
1071 | EdgeSetReader& readEdgeMap(std::string label, Map& map, |
---|
1072 | const ItemReader& ir = ItemReader()) { |
---|
1073 | return _readMap<ItemReader, Map, |
---|
1074 | typename _reader_bits::Arg<Map>::Type>(label, map, ir); |
---|
1075 | } |
---|
1076 | |
---|
1077 | template <typename ItemReader, typename Map> |
---|
1078 | EdgeSetReader& readEdgeMap(std::string label, const Map& map, |
---|
1079 | const ItemReader& ir = ItemReader()) { |
---|
1080 | return _readMap<ItemReader, Map, |
---|
1081 | typename _reader_bits::Arg<Map>::Type>(label, map, ir); |
---|
1082 | } |
---|
1083 | |
---|
1084 | private: |
---|
1085 | |
---|
1086 | template <typename ItemReader, typename Map, typename MapParameter> |
---|
1087 | EdgeSetReader& _readMap(std::string label, MapParameter map, |
---|
1088 | const ItemReader& ir = ItemReader()) { |
---|
1089 | checkConcept<concepts::WriteMap<Edge, typename Map::Value>, Map>(); |
---|
1090 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, ItemReader>(); |
---|
1091 | if (readers.find(label) != readers.end()) { |
---|
1092 | ErrorMessage msg; |
---|
1093 | msg << "Multiple read rule for edge map: " << label; |
---|
1094 | throw IoParameterError(msg.message()); |
---|
1095 | } |
---|
1096 | readers.insert( |
---|
1097 | make_pair(label, new _reader_bits:: |
---|
1098 | MapReader<Edge, Map, ItemReader>(map, ir))); |
---|
1099 | return *this; |
---|
1100 | } |
---|
1101 | |
---|
1102 | public: |
---|
1103 | |
---|
1104 | /// \brief Add a new edge map skipper command for the reader. |
---|
1105 | /// |
---|
1106 | /// Add a new edge map skipper command for the reader. |
---|
1107 | template <typename ItemReader> |
---|
1108 | EdgeSetReader& skipEdgeMap(std::string label, |
---|
1109 | const ItemReader& ir = ItemReader()) { |
---|
1110 | if (readers.find(label) != readers.end()) { |
---|
1111 | ErrorMessage msg; |
---|
1112 | msg << "Multiple read rule for edge map: " << label; |
---|
1113 | throw IoParameterError(msg.message()); |
---|
1114 | } |
---|
1115 | readers.insert(make_pair(label, new _reader_bits:: |
---|
1116 | SkipReader<Edge, ItemReader>(ir))); |
---|
1117 | return *this; |
---|
1118 | } |
---|
1119 | |
---|
1120 | protected: |
---|
1121 | |
---|
1122 | /// \brief Gives back true when the SectionReader can process |
---|
1123 | /// the section with the given header line. |
---|
1124 | /// |
---|
1125 | /// It gives back true when the header line starts with \c \@edgeset, |
---|
1126 | /// and the header line's name and the edgeset's name are the same. |
---|
1127 | virtual bool header(const std::string& line) { |
---|
1128 | std::istringstream ls(line); |
---|
1129 | std::string command; |
---|
1130 | std::string id; |
---|
1131 | ls >> command >> id; |
---|
1132 | return command == "@edgeset" && name == id; |
---|
1133 | } |
---|
1134 | |
---|
1135 | /// \brief Reader function of the section. |
---|
1136 | /// |
---|
1137 | /// It reads the content of the section. |
---|
1138 | virtual void read(std::istream& is) { |
---|
1139 | if (!nodeLabelReader->isLabelReader()) { |
---|
1140 | throw DataFormatError("Cannot find nodeset or label map"); |
---|
1141 | } |
---|
1142 | std::vector<_reader_bits::MapReaderBase<Edge>* > index; |
---|
1143 | std::string line; |
---|
1144 | |
---|
1145 | { |
---|
1146 | getline(is, line); |
---|
1147 | std::istringstream ls(line); |
---|
1148 | std::string id; |
---|
1149 | while (ls >> id) { |
---|
1150 | typename MapReaders::iterator it = readers.find(id); |
---|
1151 | if (it != readers.end()) { |
---|
1152 | index.push_back(it->second); |
---|
1153 | it->second->touch(); |
---|
1154 | } else { |
---|
1155 | index.push_back(&skipper); |
---|
1156 | } |
---|
1157 | if (id == "label") { |
---|
1158 | inverter.reset(index.back()->getInverter()); |
---|
1159 | index.back() = inverter.get(); |
---|
1160 | } |
---|
1161 | } |
---|
1162 | } |
---|
1163 | for (typename MapReaders::iterator it = readers.begin(); |
---|
1164 | it != readers.end(); ++it) { |
---|
1165 | if (!it->second->touched()) { |
---|
1166 | ErrorMessage msg; |
---|
1167 | msg << "Map not found in file: " << it->first; |
---|
1168 | throw IoParameterError(msg.message()); |
---|
1169 | } |
---|
1170 | } |
---|
1171 | while (getline(is, line)) { |
---|
1172 | std::istringstream ls(line); |
---|
1173 | Node from = nodeLabelReader->read(ls); |
---|
1174 | Node to = nodeLabelReader->read(ls); |
---|
1175 | Edge edge = graph.addEdge(from, to); |
---|
1176 | for (int i = 0; i < int(index.size()); ++i) { |
---|
1177 | index[i]->read(ls, edge); |
---|
1178 | } |
---|
1179 | } |
---|
1180 | } |
---|
1181 | |
---|
1182 | virtual void missing() { |
---|
1183 | if (readers.empty()) return; |
---|
1184 | ErrorMessage msg; |
---|
1185 | msg << "EdgeSet section not found in file: @edgeset " << name; |
---|
1186 | throw IoParameterError(msg.message()); |
---|
1187 | } |
---|
1188 | |
---|
1189 | public: |
---|
1190 | |
---|
1191 | /// \brief Returns true if the edgeset can give back the edge by its label. |
---|
1192 | /// |
---|
1193 | /// Returns true if the edgeset can give back the edge by its label. |
---|
1194 | /// It is possible only if an "label" named map was read. |
---|
1195 | bool isLabelReader() const { |
---|
1196 | return inverter.get() != 0; |
---|
1197 | } |
---|
1198 | |
---|
1199 | /// \brief Gives back the edge by its label. |
---|
1200 | /// |
---|
1201 | /// It reads an id from the stream and gives back which edge belongs to |
---|
1202 | /// it. It is possible only if there was read an "label" named map. |
---|
1203 | void readLabel(std::istream& is, Edge& edge) const { |
---|
1204 | edge = inverter->read(is); |
---|
1205 | } |
---|
1206 | |
---|
1207 | private: |
---|
1208 | |
---|
1209 | typedef std::map<std::string, _reader_bits::MapReaderBase<Edge>*> |
---|
1210 | MapReaders; |
---|
1211 | |
---|
1212 | MapReaders readers; |
---|
1213 | |
---|
1214 | Graph& graph; |
---|
1215 | std::string name; |
---|
1216 | _reader_bits::SkipReader<Edge, DefaultSkipper> skipper; |
---|
1217 | |
---|
1218 | std::auto_ptr<_reader_bits::MapInverterBase<Edge> > inverter; |
---|
1219 | std::auto_ptr<_reader_bits::LabelReaderBase<Node> > nodeLabelReader; |
---|
1220 | }; |
---|
1221 | |
---|
1222 | /// \ingroup section_io |
---|
1223 | /// \brief SectionReader for reading a undirected graph's edgeset. |
---|
1224 | /// |
---|
1225 | /// The lemon format can store multiple undirected edgesets with several |
---|
1226 | /// maps. The undirected edgeset section's header line is \c \@uedgeset |
---|
1227 | /// \c uedgeset_name, but the \c uedgeset_name may be empty. |
---|
1228 | /// |
---|
1229 | /// The first line of the section contains the names of the maps separated |
---|
1230 | /// with white spaces. Each next lines describes an edge in the edgeset. The |
---|
1231 | /// line contains the connected nodes' id and the mapped values for each map. |
---|
1232 | /// |
---|
1233 | /// The section can handle the directed as a syntactical sugar. Two |
---|
1234 | /// undirected edge map describes one directed edge map. This two maps |
---|
1235 | /// are the forward map and the backward map and the names of this map |
---|
1236 | /// is near the same just with a prefix \c '+' or \c '-' character |
---|
1237 | /// difference. |
---|
1238 | /// |
---|
1239 | /// If the edgeset contains an \c "label" named map then it will be regarded |
---|
1240 | /// as id map. This map should contain only unique values and when the |
---|
1241 | /// \c readLabel() member will read a value from the given stream it will |
---|
1242 | /// give back that uicted edge which is mapped to this value. |
---|
1243 | /// |
---|
1244 | /// The undirected edgeset reader needs a node id reader to identify which |
---|
1245 | /// nodes have to be connected. If a NodeSetReader reads an "label" named |
---|
1246 | /// map, it will be able to resolve the nodes by ids. |
---|
1247 | /// |
---|
1248 | /// \relates LemonReader |
---|
1249 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
1250 | class UEdgeSetReader : public LemonReader::SectionReader { |
---|
1251 | typedef LemonReader::SectionReader Parent; |
---|
1252 | public: |
---|
1253 | |
---|
1254 | typedef _Graph Graph; |
---|
1255 | typedef _Traits Traits; |
---|
1256 | typedef typename Graph::Node Node; |
---|
1257 | typedef typename Graph::Edge Edge; |
---|
1258 | typedef typename Graph::UEdge UEdge; |
---|
1259 | typedef typename Traits::Skipper DefaultSkipper; |
---|
1260 | |
---|
1261 | /// \brief Constructor. |
---|
1262 | /// |
---|
1263 | /// Constructor for UEdgeSetReader. It creates the UEdgeSetReader |
---|
1264 | /// and attach it into the given LemonReader. The undirected edgeset |
---|
1265 | /// reader will add the read undirected edges to the given Graph. It |
---|
1266 | /// will use the given node id reader to read the source and target |
---|
1267 | /// nodes of the edges. The reader will read the section only if the |
---|
1268 | /// \c _name and the \c uedgset_name are the same. |
---|
1269 | template <typename NodeLabelReader> |
---|
1270 | UEdgeSetReader(LemonReader& _reader, |
---|
1271 | Graph& _graph, |
---|
1272 | const NodeLabelReader& _nodeLabelReader, |
---|
1273 | const std::string& _name = std::string(), |
---|
1274 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
1275 | : Parent(_reader), graph(_graph), name(_name), skipper(_skipper) { |
---|
1276 | checkConcept<_reader_bits::ItemLabelReader<Node>, NodeLabelReader>(); |
---|
1277 | nodeLabelReader.reset(new _reader_bits:: |
---|
1278 | LabelReader<Node, NodeLabelReader>(_nodeLabelReader)); |
---|
1279 | } |
---|
1280 | /// \brief Destructor. |
---|
1281 | /// |
---|
1282 | /// Destructor for UEdgeSetReader. |
---|
1283 | virtual ~UEdgeSetReader() { |
---|
1284 | for (typename MapReaders::iterator it = readers.begin(); |
---|
1285 | it != readers.end(); ++it) { |
---|
1286 | delete it->second; |
---|
1287 | } |
---|
1288 | } |
---|
1289 | |
---|
1290 | private: |
---|
1291 | UEdgeSetReader(const UEdgeSetReader&); |
---|
1292 | void operator=(const UEdgeSetReader&); |
---|
1293 | |
---|
1294 | public: |
---|
1295 | |
---|
1296 | /// \brief Add a new undirected edge map reader command for the reader. |
---|
1297 | /// |
---|
1298 | /// Add a new edge undirected map reader command for the reader. |
---|
1299 | template <typename Map> |
---|
1300 | UEdgeSetReader& readUEdgeMap(std::string label, Map& map) { |
---|
1301 | return _readMap< |
---|
1302 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
1303 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
1304 | } |
---|
1305 | |
---|
1306 | template <typename Map> |
---|
1307 | UEdgeSetReader& readUEdgeMap(std::string label, const Map& map) { |
---|
1308 | return _readMap< |
---|
1309 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
1310 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
1311 | } |
---|
1312 | |
---|
1313 | /// \brief Add a new undirected edge map reader command for the reader. |
---|
1314 | /// |
---|
1315 | /// Add a new edge undirected map reader command for the reader. |
---|
1316 | template <typename ItemReader, typename Map> |
---|
1317 | UEdgeSetReader& readUEdgeMap(std::string label, Map& map, |
---|
1318 | const ItemReader& ir = ItemReader()) { |
---|
1319 | return _readMap<ItemReader, Map, typename _reader_bits::Arg<Map>::Type> |
---|
1320 | (label, map, ir); |
---|
1321 | } |
---|
1322 | |
---|
1323 | template <typename ItemReader, typename Map> |
---|
1324 | UEdgeSetReader& readUEdgeMap(std::string label, const Map& map, |
---|
1325 | const ItemReader& ir = ItemReader()) { |
---|
1326 | return _readMap<ItemReader, Map, typename _reader_bits::Arg<Map>::Type > |
---|
1327 | (label, map, ir); |
---|
1328 | } |
---|
1329 | |
---|
1330 | private: |
---|
1331 | |
---|
1332 | template <typename ItemReader, typename Map, typename MapParameter> |
---|
1333 | UEdgeSetReader& _readMap(std::string label, MapParameter map, |
---|
1334 | const ItemReader& ir = ItemReader()) { |
---|
1335 | checkConcept<concepts::WriteMap<UEdge, typename Map::Value>, Map>(); |
---|
1336 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, ItemReader>(); |
---|
1337 | if (readers.find(label) != readers.end()) { |
---|
1338 | ErrorMessage msg; |
---|
1339 | msg << "Multiple read rule for edge map: " << label; |
---|
1340 | throw IoParameterError(msg.message()); |
---|
1341 | } |
---|
1342 | readers.insert( |
---|
1343 | make_pair(label, new _reader_bits:: |
---|
1344 | MapReader<UEdge, Map, ItemReader>(map, ir))); |
---|
1345 | return *this; |
---|
1346 | } |
---|
1347 | |
---|
1348 | public: |
---|
1349 | |
---|
1350 | /// \brief Add a new undirected edge map skipper command for the reader. |
---|
1351 | /// |
---|
1352 | /// Add a new undirected edge map skipper command for the reader. |
---|
1353 | template <typename ItemReader> |
---|
1354 | UEdgeSetReader& skipUEdgeMap(std::string label, |
---|
1355 | const ItemReader& ir = ItemReader()) { |
---|
1356 | if (readers.find(label) != readers.end()) { |
---|
1357 | ErrorMessage msg; |
---|
1358 | msg << "Multiple read rule for node map: " << label; |
---|
1359 | throw IoParameterError(msg.message()); |
---|
1360 | } |
---|
1361 | readers.insert(make_pair(label, new _reader_bits:: |
---|
1362 | SkipReader<UEdge, ItemReader>(ir))); |
---|
1363 | return *this; |
---|
1364 | } |
---|
1365 | |
---|
1366 | /// \brief Add a new directed edge map reader command for the reader. |
---|
1367 | /// |
---|
1368 | /// Add a new directed edge map reader command for the reader. |
---|
1369 | template <typename Map> |
---|
1370 | UEdgeSetReader& readEdgeMap(std::string label, Map& map) { |
---|
1371 | return _readDirMap< |
---|
1372 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
1373 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
1374 | } |
---|
1375 | |
---|
1376 | template <typename Map> |
---|
1377 | UEdgeSetReader& readEdgeMap(std::string label, const Map& map) { |
---|
1378 | return _readDirMap< |
---|
1379 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
1380 | typename _reader_bits::Arg<Map>::Type>(label, map); |
---|
1381 | } |
---|
1382 | |
---|
1383 | /// \brief Add a new directed edge map reader command for the reader. |
---|
1384 | /// |
---|
1385 | /// Add a new directed edge map reader command for the reader. |
---|
1386 | template <typename ItemReader, typename Map> |
---|
1387 | UEdgeSetReader& readEdgeMap(std::string label, Map& map, |
---|
1388 | const ItemReader& ir = ItemReader()) { |
---|
1389 | return _readDirMap<ItemReader, Map, |
---|
1390 | typename _reader_bits::Arg<Map>::Type>(label, map, ir); |
---|
1391 | } |
---|
1392 | |
---|
1393 | template <typename ItemReader, typename Map> |
---|
1394 | UEdgeSetReader& readEdgeMap(std::string label, const Map& map, |
---|
1395 | const ItemReader& ir = ItemReader()) { |
---|
1396 | return _readDirMap<ItemReader, Map, |
---|
1397 | typename _reader_bits::Arg<Map>::Type>(label, map, ir); |
---|
1398 | } |
---|
1399 | |
---|
1400 | private: |
---|
1401 | |
---|
1402 | template <typename ItemReader, typename Map, typename MapParameter> |
---|
1403 | UEdgeSetReader& _readDirMap(std::string label, MapParameter map, |
---|
1404 | const ItemReader& ir = ItemReader()) { |
---|
1405 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, ItemReader>(); |
---|
1406 | checkConcept<concepts::WriteMap<Edge, typename Map::Value>, Map>(); |
---|
1407 | readUEdgeMap("+" + label, |
---|
1408 | _reader_bits::forwardComposeMap(graph, map), ir); |
---|
1409 | readUEdgeMap("-" + label, |
---|
1410 | _reader_bits::backwardComposeMap(graph, map), ir); |
---|
1411 | return *this; |
---|
1412 | } |
---|
1413 | |
---|
1414 | public: |
---|
1415 | |
---|
1416 | /// \brief Add a new directed edge map skipper command for the reader. |
---|
1417 | /// |
---|
1418 | /// Add a new directed edge map skipper command for the reader. |
---|
1419 | template <typename ItemReader> |
---|
1420 | UEdgeSetReader& skipEdgeMap(std::string label, |
---|
1421 | const ItemReader& ir = ItemReader()) { |
---|
1422 | skipUEdgeMap("+" + label, ir); |
---|
1423 | skipUEdgeMap("-" + label, ir); |
---|
1424 | return *this; |
---|
1425 | } |
---|
1426 | |
---|
1427 | protected: |
---|
1428 | |
---|
1429 | /// \brief Gives back true when the SectionReader can process |
---|
1430 | /// the section with the given header line. |
---|
1431 | /// |
---|
1432 | /// It gives back true when the header line starts with \c \@uedgeset, |
---|
1433 | /// and the header line's name and the edgeset's name are the same. |
---|
1434 | virtual bool header(const std::string& line) { |
---|
1435 | std::istringstream ls(line); |
---|
1436 | std::string command; |
---|
1437 | std::string id; |
---|
1438 | ls >> command >> id; |
---|
1439 | return command == "@uedgeset" && name == id; |
---|
1440 | } |
---|
1441 | |
---|
1442 | /// \brief Reader function of the section. |
---|
1443 | /// |
---|
1444 | /// It reads the content of the section. |
---|
1445 | virtual void read(std::istream& is) { |
---|
1446 | if (!nodeLabelReader->isLabelReader()) { |
---|
1447 | throw DataFormatError("Cannot find nodeset or label map"); |
---|
1448 | } |
---|
1449 | std::vector<_reader_bits::MapReaderBase<UEdge>* > index; |
---|
1450 | std::string line; |
---|
1451 | |
---|
1452 | { |
---|
1453 | getline(is, line); |
---|
1454 | std::istringstream ls(line); |
---|
1455 | std::string id; |
---|
1456 | while (ls >> id) { |
---|
1457 | typename MapReaders::iterator it = readers.find(id); |
---|
1458 | if (it != readers.end()) { |
---|
1459 | index.push_back(it->second); |
---|
1460 | it->second->touch(); |
---|
1461 | } else { |
---|
1462 | index.push_back(&skipper); |
---|
1463 | } |
---|
1464 | if (id == "label") { |
---|
1465 | inverter.reset(index.back()->getInverter()); |
---|
1466 | index.back() = inverter.get(); |
---|
1467 | } |
---|
1468 | } |
---|
1469 | for (typename MapReaders::iterator it = readers.begin(); |
---|
1470 | it != readers.end(); ++it) { |
---|
1471 | if (!it->second->touched()) { |
---|
1472 | ErrorMessage msg; |
---|
1473 | msg << "Map not found in file: " << it->first; |
---|
1474 | throw IoParameterError(msg.message()); |
---|
1475 | } |
---|
1476 | } |
---|
1477 | } |
---|
1478 | while (getline(is, line)) { |
---|
1479 | std::istringstream ls(line); |
---|
1480 | Node from = nodeLabelReader->read(ls); |
---|
1481 | Node to = nodeLabelReader->read(ls); |
---|
1482 | UEdge edge = graph.addEdge(from, to); |
---|
1483 | for (int i = 0; i < int(index.size()); ++i) { |
---|
1484 | index[i]->read(ls, edge); |
---|
1485 | } |
---|
1486 | } |
---|
1487 | } |
---|
1488 | |
---|
1489 | virtual void missing() { |
---|
1490 | if (readers.empty()) return; |
---|
1491 | ErrorMessage msg; |
---|
1492 | msg << "UEdgeSet section not found in file: @uedgeset " << name; |
---|
1493 | throw IoParameterError(msg.message()); |
---|
1494 | } |
---|
1495 | |
---|
1496 | public: |
---|
1497 | |
---|
1498 | /// \brief Returns true if the edgeset can give back the edge by its label. |
---|
1499 | /// |
---|
1500 | /// Returns true if the edgeset can give back the undirected edge by its |
---|
1501 | /// id. It is possible only if an "label" named map was read. |
---|
1502 | bool isLabelReader() const { |
---|
1503 | return inverter.get() != 0; |
---|
1504 | } |
---|
1505 | |
---|
1506 | /// \brief Gives back the undirected edge by its label. |
---|
1507 | /// |
---|
1508 | /// It reads an id from the stream and gives back which undirected edge |
---|
1509 | /// belongs to it. It is possible only if there was read an "label" named map. |
---|
1510 | void readLabel(std::istream& is, UEdge& uEdge) const { |
---|
1511 | uEdge = inverter->read(is); |
---|
1512 | } |
---|
1513 | |
---|
1514 | /// \brief Gives back the directed edge by its label. |
---|
1515 | /// |
---|
1516 | /// It reads an id from the stream and gives back which directed edge |
---|
1517 | /// belongs to it. The directed edge id is the \c '+' or \c '-' character |
---|
1518 | /// and the undirected edge id. It is possible only if there was read |
---|
1519 | /// an "label" named map. |
---|
1520 | void readLabel(std::istream& is, Edge& edge) const { |
---|
1521 | char c; |
---|
1522 | is >> c; |
---|
1523 | UEdge uEdge = inverter->read(is); |
---|
1524 | if (c == '+') { |
---|
1525 | edge = graph.direct(uEdge, true); |
---|
1526 | } else if (c == '-') { |
---|
1527 | edge = graph.direct(uEdge, false); |
---|
1528 | } else { |
---|
1529 | throw DataFormatError("Wrong id format for edge " |
---|
1530 | "in undirected edgeset"); |
---|
1531 | } |
---|
1532 | } |
---|
1533 | |
---|
1534 | private: |
---|
1535 | |
---|
1536 | typedef std::map<std::string, |
---|
1537 | _reader_bits::MapReaderBase<UEdge>*> MapReaders; |
---|
1538 | MapReaders readers; |
---|
1539 | |
---|
1540 | Graph& graph; |
---|
1541 | std::string name; |
---|
1542 | _reader_bits::SkipReader<UEdge, DefaultSkipper> skipper; |
---|
1543 | |
---|
1544 | std::auto_ptr<_reader_bits::MapInverterBase<UEdge> > inverter; |
---|
1545 | std::auto_ptr<_reader_bits::LabelReaderBase<Node> > nodeLabelReader; |
---|
1546 | }; |
---|
1547 | |
---|
1548 | /// \ingroup section_io |
---|
1549 | /// \brief SectionReader for reading labeled nodes. |
---|
1550 | /// |
---|
1551 | /// The nodes section's header line is \c \@nodes \c nodes_name, but the |
---|
1552 | /// \c nodes_name may be empty. |
---|
1553 | /// |
---|
1554 | /// Each line in the section contains the name of the node |
---|
1555 | /// and then the node id. |
---|
1556 | /// |
---|
1557 | /// \relates LemonReader |
---|
1558 | template <typename _Graph> |
---|
1559 | class NodeReader : public LemonReader::SectionReader { |
---|
1560 | typedef LemonReader::SectionReader Parent; |
---|
1561 | typedef _Graph Graph; |
---|
1562 | typedef typename Graph::Node Node; |
---|
1563 | public: |
---|
1564 | |
---|
1565 | /// \brief Constructor. |
---|
1566 | /// |
---|
1567 | /// Constructor for NodeReader. It creates the NodeReader and |
---|
1568 | /// attach it into the given LemonReader. It will use the given |
---|
1569 | /// node id reader to give back the nodes. The reader will read the |
---|
1570 | /// section only if the \c _name and the \c nodes_name are the same. |
---|
1571 | template <typename _LabelReader> |
---|
1572 | NodeReader(LemonReader& _reader, const _LabelReader& _labelReader, |
---|
1573 | const std::string& _name = std::string()) |
---|
1574 | : Parent(_reader), name(_name) { |
---|
1575 | checkConcept<_reader_bits::ItemLabelReader<Node>, _LabelReader>(); |
---|
1576 | nodeLabelReader.reset(new _reader_bits:: |
---|
1577 | LabelReader<Node, _LabelReader>(_labelReader)); |
---|
1578 | } |
---|
1579 | |
---|
1580 | /// \brief Destructor. |
---|
1581 | /// |
---|
1582 | /// Destructor for NodeReader. |
---|
1583 | virtual ~NodeReader() {} |
---|
1584 | |
---|
1585 | private: |
---|
1586 | NodeReader(const NodeReader&); |
---|
1587 | void operator=(const NodeReader&); |
---|
1588 | |
---|
1589 | public: |
---|
1590 | |
---|
1591 | /// \brief Add a node reader command for the NodeReader. |
---|
1592 | /// |
---|
1593 | /// Add a node reader command for the NodeReader. |
---|
1594 | void readNode(std::string label, Node& item) { |
---|
1595 | if (readers.find(label) != readers.end()) { |
---|
1596 | ErrorMessage msg; |
---|
1597 | msg << "Multiple read rule for node: " << label; |
---|
1598 | throw IoParameterError(msg.message()); |
---|
1599 | } |
---|
1600 | readers.insert(make_pair(label, _reader_bits::ItemStore<Node>(item))); |
---|
1601 | } |
---|
1602 | |
---|
1603 | protected: |
---|
1604 | |
---|
1605 | /// \brief Gives back true when the SectionReader can process |
---|
1606 | /// the section with the given header line. |
---|
1607 | /// |
---|
1608 | /// It gives back true when the header line start with \c \@nodes, |
---|
1609 | /// and the header line's name and the reader's name are the same. |
---|
1610 | virtual bool header(const std::string& line) { |
---|
1611 | std::istringstream ls(line); |
---|
1612 | std::string command; |
---|
1613 | std::string id; |
---|
1614 | ls >> command >> id; |
---|
1615 | return command == "@nodes" && name == id; |
---|
1616 | } |
---|
1617 | |
---|
1618 | /// \brief Reader function of the section. |
---|
1619 | /// |
---|
1620 | /// It reads the content of the section. |
---|
1621 | virtual void read(std::istream& is) { |
---|
1622 | if (!nodeLabelReader->isLabelReader()) { |
---|
1623 | throw DataFormatError("Cannot find nodeset or label map"); |
---|
1624 | } |
---|
1625 | std::string line; |
---|
1626 | while (getline(is, line)) { |
---|
1627 | std::istringstream ls(line); |
---|
1628 | std::string id; |
---|
1629 | ls >> id; |
---|
1630 | typename NodeReaders::iterator it = readers.find(id); |
---|
1631 | if (it != readers.end()) { |
---|
1632 | it->second.read(nodeLabelReader->read(ls)); |
---|
1633 | it->second.touch(); |
---|
1634 | } |
---|
1635 | } |
---|
1636 | for (typename NodeReaders::iterator it = readers.begin(); |
---|
1637 | it != readers.end(); ++it) { |
---|
1638 | if (!it->second.touched()) { |
---|
1639 | ErrorMessage msg; |
---|
1640 | msg << "Node not found in file: " << it->first; |
---|
1641 | throw IoParameterError(msg.message()); |
---|
1642 | } |
---|
1643 | } |
---|
1644 | } |
---|
1645 | |
---|
1646 | virtual void missing() { |
---|
1647 | if (readers.empty()) return; |
---|
1648 | ErrorMessage msg; |
---|
1649 | msg << "Nodes section not found in file: @nodes " << name; |
---|
1650 | throw IoParameterError(msg.message()); |
---|
1651 | } |
---|
1652 | |
---|
1653 | private: |
---|
1654 | |
---|
1655 | std::string name; |
---|
1656 | |
---|
1657 | typedef std::map<std::string, _reader_bits::ItemStore<Node> > NodeReaders; |
---|
1658 | NodeReaders readers; |
---|
1659 | std::auto_ptr<_reader_bits::LabelReaderBase<Node> > nodeLabelReader; |
---|
1660 | }; |
---|
1661 | |
---|
1662 | /// \ingroup section_io |
---|
1663 | /// \brief SectionReader for reading labeled edges. |
---|
1664 | /// |
---|
1665 | /// The edges section's header line is \c \@edges \c edges_name, but the |
---|
1666 | /// \c edges_name may be empty. |
---|
1667 | /// |
---|
1668 | /// Each line in the section contains the name of the edge |
---|
1669 | /// and then the edge id. |
---|
1670 | /// |
---|
1671 | /// \relates LemonReader |
---|
1672 | template <typename _Graph> |
---|
1673 | class EdgeReader : public LemonReader::SectionReader { |
---|
1674 | typedef LemonReader::SectionReader Parent; |
---|
1675 | typedef _Graph Graph; |
---|
1676 | typedef typename Graph::Edge Edge; |
---|
1677 | public: |
---|
1678 | |
---|
1679 | /// \brief Constructor. |
---|
1680 | /// |
---|
1681 | /// Constructor for EdgeReader. It creates the EdgeReader and |
---|
1682 | /// attach it into the given LemonReader. It will use the given |
---|
1683 | /// edge id reader to give back the edges. The reader will read the |
---|
1684 | /// section only if the \c _name and the \c edges_name are the same. |
---|
1685 | template <typename _LabelReader> |
---|
1686 | EdgeReader(LemonReader& _reader, const _LabelReader& _labelReader, |
---|
1687 | const std::string& _name = std::string()) |
---|
1688 | : Parent(_reader), name(_name) { |
---|
1689 | checkConcept<_reader_bits::ItemLabelReader<Edge>, _LabelReader>(); |
---|
1690 | edgeLabelReader.reset(new _reader_bits:: |
---|
1691 | LabelReader<Edge, _LabelReader>(_labelReader)); |
---|
1692 | } |
---|
1693 | |
---|
1694 | /// \brief Destructor. |
---|
1695 | /// |
---|
1696 | /// Destructor for EdgeReader. |
---|
1697 | virtual ~EdgeReader() {} |
---|
1698 | private: |
---|
1699 | EdgeReader(const EdgeReader&); |
---|
1700 | void operator=(const EdgeReader&); |
---|
1701 | |
---|
1702 | public: |
---|
1703 | |
---|
1704 | /// \brief Add an edge reader command for the EdgeReader. |
---|
1705 | /// |
---|
1706 | /// Add an edge reader command for the EdgeReader. |
---|
1707 | void readEdge(std::string label, Edge& item) { |
---|
1708 | if (readers.find(label) != readers.end()) { |
---|
1709 | ErrorMessage msg; |
---|
1710 | msg << "Multiple read rule for edge: " << label; |
---|
1711 | throw IoParameterError(msg.message()); |
---|
1712 | } |
---|
1713 | readers.insert(make_pair(label, _reader_bits::ItemStore<Edge>(item))); |
---|
1714 | } |
---|
1715 | |
---|
1716 | protected: |
---|
1717 | |
---|
1718 | /// \brief Gives back true when the SectionReader can process |
---|
1719 | /// the section with the given header line. |
---|
1720 | /// |
---|
1721 | /// It gives back true when the header line start with \c \@edges, |
---|
1722 | /// and the header line's name and the reader's name are the same. |
---|
1723 | virtual bool header(const std::string& line) { |
---|
1724 | std::istringstream ls(line); |
---|
1725 | std::string command; |
---|
1726 | std::string id; |
---|
1727 | ls >> command >> id; |
---|
1728 | return command == "@edges" && name == id; |
---|
1729 | } |
---|
1730 | |
---|
1731 | /// \brief Reader function of the section. |
---|
1732 | /// |
---|
1733 | /// It reads the content of the section. |
---|
1734 | virtual void read(std::istream& is) { |
---|
1735 | if (!edgeLabelReader->isLabelReader()) { |
---|
1736 | throw DataFormatError("Cannot find edgeset or label map"); |
---|
1737 | } |
---|
1738 | std::string line; |
---|
1739 | while (getline(is, line)) { |
---|
1740 | std::istringstream ls(line); |
---|
1741 | std::string id; |
---|
1742 | ls >> id; |
---|
1743 | typename EdgeReaders::iterator it = readers.find(id); |
---|
1744 | if (it != readers.end()) { |
---|
1745 | it->second.read(edgeLabelReader->read(ls)); |
---|
1746 | it->second.touch(); |
---|
1747 | } |
---|
1748 | } |
---|
1749 | for (typename EdgeReaders::iterator it = readers.begin(); |
---|
1750 | it != readers.end(); ++it) { |
---|
1751 | if (!it->second.touched()) { |
---|
1752 | ErrorMessage msg; |
---|
1753 | msg << "Edge not found in file: " << it->first; |
---|
1754 | throw IoParameterError(msg.message()); |
---|
1755 | } |
---|
1756 | } |
---|
1757 | } |
---|
1758 | |
---|
1759 | virtual void missing() { |
---|
1760 | if (readers.empty()) return; |
---|
1761 | ErrorMessage msg; |
---|
1762 | msg << "Edges section not found in file: @edges " << name; |
---|
1763 | throw IoParameterError(msg.message()); |
---|
1764 | } |
---|
1765 | |
---|
1766 | private: |
---|
1767 | |
---|
1768 | std::string name; |
---|
1769 | |
---|
1770 | typedef std::map<std::string, _reader_bits::ItemStore<Edge> > EdgeReaders; |
---|
1771 | EdgeReaders readers; |
---|
1772 | std::auto_ptr<_reader_bits::LabelReaderBase<Edge> > edgeLabelReader; |
---|
1773 | }; |
---|
1774 | |
---|
1775 | /// \ingroup section_io |
---|
1776 | /// \brief SectionReader for reading labeled undirected edges. |
---|
1777 | /// |
---|
1778 | /// The undirected edges section's header line is \c \@uedges |
---|
1779 | /// \c uedges_name, but the \c uedges_name may be empty. |
---|
1780 | /// |
---|
1781 | /// Each line in the section contains the name of the undirected edge |
---|
1782 | /// and then the undirected edge id. |
---|
1783 | /// |
---|
1784 | /// \relates LemonReader |
---|
1785 | template <typename _Graph> |
---|
1786 | class UEdgeReader : public LemonReader::SectionReader { |
---|
1787 | typedef LemonReader::SectionReader Parent; |
---|
1788 | typedef _Graph Graph; |
---|
1789 | typedef typename Graph::Edge Edge; |
---|
1790 | typedef typename Graph::UEdge UEdge; |
---|
1791 | public: |
---|
1792 | |
---|
1793 | /// \brief Constructor. |
---|
1794 | /// |
---|
1795 | /// Constructor for UEdgeReader. It creates the UEdgeReader and |
---|
1796 | /// attach it into the given LemonReader. It will use the given |
---|
1797 | /// undirected edge id reader to give back the edges. The reader will |
---|
1798 | /// read the section only if the \c _name and the \c uedges_name are |
---|
1799 | /// the same. |
---|
1800 | template <typename _LabelReader> |
---|
1801 | UEdgeReader(LemonReader& _reader, const _LabelReader& _labelReader, |
---|
1802 | const std::string& _name = std::string()) |
---|
1803 | : Parent(_reader), name(_name) { |
---|
1804 | checkConcept<_reader_bits::ItemLabelReader<UEdge>, _LabelReader>(); |
---|
1805 | checkConcept<_reader_bits::ItemLabelReader<Edge>, _LabelReader>(); |
---|
1806 | uEdgeLabelReader.reset(new _reader_bits:: |
---|
1807 | LabelReader<UEdge, _LabelReader>(_labelReader)); |
---|
1808 | edgeLabelReader.reset(new _reader_bits:: |
---|
1809 | LabelReader<Edge, _LabelReader>(_labelReader)); |
---|
1810 | } |
---|
1811 | |
---|
1812 | /// \brief Destructor. |
---|
1813 | /// |
---|
1814 | /// Destructor for UEdgeReader. |
---|
1815 | virtual ~UEdgeReader() {} |
---|
1816 | private: |
---|
1817 | UEdgeReader(const UEdgeReader&); |
---|
1818 | void operator=(const UEdgeReader&); |
---|
1819 | |
---|
1820 | public: |
---|
1821 | |
---|
1822 | /// \brief Add an undirected edge reader command for the UEdgeReader. |
---|
1823 | /// |
---|
1824 | /// Add an undirected edge reader command for the UEdgeReader. |
---|
1825 | void readUEdge(std::string label, UEdge& item) { |
---|
1826 | if (uEdgeReaders.find(label) != uEdgeReaders.end()) { |
---|
1827 | ErrorMessage msg; |
---|
1828 | msg << "Multiple read rule for undirected edge: " << label; |
---|
1829 | throw IoParameterError(msg.message()); |
---|
1830 | } |
---|
1831 | uEdgeReaders.insert(make_pair(label, _reader_bits:: |
---|
1832 | ItemStore<UEdge>(item))); |
---|
1833 | } |
---|
1834 | |
---|
1835 | /// \brief Add an edge reader command for the UEdgeReader. |
---|
1836 | /// |
---|
1837 | /// Add an edge reader command for the UEdgeReader. |
---|
1838 | void readEdge(std::string label, Edge& item) { |
---|
1839 | if (edgeReaders.find(label) != edgeReaders.end()) { |
---|
1840 | ErrorMessage msg; |
---|
1841 | msg << "Multiple read rule for edge: " << label; |
---|
1842 | throw IoParameterError(msg.message()); |
---|
1843 | } |
---|
1844 | edgeReaders.insert(make_pair(label, _reader_bits::ItemStore<Edge>(item))); |
---|
1845 | } |
---|
1846 | |
---|
1847 | protected: |
---|
1848 | |
---|
1849 | /// \brief Gives back true when the SectionReader can process |
---|
1850 | /// the section with the given header line. |
---|
1851 | /// |
---|
1852 | /// It gives back true when the header line start with \c \@edges, |
---|
1853 | /// and the header line's name and the reader's name are the same. |
---|
1854 | virtual bool header(const std::string& line) { |
---|
1855 | std::istringstream ls(line); |
---|
1856 | std::string command; |
---|
1857 | std::string id; |
---|
1858 | ls >> command >> id; |
---|
1859 | return command == "@uedges" && name == id; |
---|
1860 | } |
---|
1861 | |
---|
1862 | /// \brief Reader function of the section. |
---|
1863 | /// |
---|
1864 | /// It reads the content of the section. |
---|
1865 | virtual void read(std::istream& is) { |
---|
1866 | if (!edgeLabelReader->isLabelReader()) { |
---|
1867 | throw DataFormatError("Cannot find undirected edgeset or label map"); |
---|
1868 | } |
---|
1869 | if (!uEdgeLabelReader->isLabelReader()) { |
---|
1870 | throw DataFormatError("Cannot find undirected edgeset or label map"); |
---|
1871 | } |
---|
1872 | std::string line; |
---|
1873 | while (getline(is, line)) { |
---|
1874 | std::istringstream ls(line); |
---|
1875 | std::string id; |
---|
1876 | ls >> id; |
---|
1877 | { |
---|
1878 | typename UEdgeReaders::iterator it = uEdgeReaders.find(id); |
---|
1879 | if (it != uEdgeReaders.end()) { |
---|
1880 | it->second.read(uEdgeLabelReader->read(ls)); |
---|
1881 | it->second.touch(); |
---|
1882 | continue; |
---|
1883 | } |
---|
1884 | } { |
---|
1885 | typename EdgeReaders::iterator it = edgeReaders.find(id); |
---|
1886 | if (it != edgeReaders.end()) { |
---|
1887 | it->second.read(edgeLabelReader->read(ls)); |
---|
1888 | it->second.touch(); |
---|
1889 | continue; |
---|
1890 | } |
---|
1891 | } |
---|
1892 | } |
---|
1893 | for (typename EdgeReaders::iterator it = edgeReaders.begin(); |
---|
1894 | it != edgeReaders.end(); ++it) { |
---|
1895 | if (!it->second.touched()) { |
---|
1896 | ErrorMessage msg; |
---|
1897 | msg << "Edge not found in file: " << it->first; |
---|
1898 | throw IoParameterError(msg.message()); |
---|
1899 | } |
---|
1900 | } |
---|
1901 | for (typename UEdgeReaders::iterator it = uEdgeReaders.begin(); |
---|
1902 | it != uEdgeReaders.end(); ++it) { |
---|
1903 | if (!it->second.touched()) { |
---|
1904 | ErrorMessage msg; |
---|
1905 | msg << "UEdge not found in file: " << it->first; |
---|
1906 | throw IoParameterError(msg.message()); |
---|
1907 | } |
---|
1908 | } |
---|
1909 | } |
---|
1910 | |
---|
1911 | virtual void missing() { |
---|
1912 | if (edgeReaders.empty() && uEdgeReaders.empty()) return; |
---|
1913 | ErrorMessage msg; |
---|
1914 | msg << "UEdges section not found in file: @uedges " << name; |
---|
1915 | throw IoParameterError(msg.message()); |
---|
1916 | } |
---|
1917 | |
---|
1918 | private: |
---|
1919 | |
---|
1920 | std::string name; |
---|
1921 | |
---|
1922 | typedef std::map<std::string, |
---|
1923 | _reader_bits::ItemStore<UEdge> > UEdgeReaders; |
---|
1924 | UEdgeReaders uEdgeReaders; |
---|
1925 | std::auto_ptr<_reader_bits::LabelReaderBase<UEdge> > uEdgeLabelReader; |
---|
1926 | |
---|
1927 | typedef std::map<std::string, _reader_bits::ItemStore<Edge> > EdgeReaders; |
---|
1928 | EdgeReaders edgeReaders; |
---|
1929 | std::auto_ptr<_reader_bits::LabelReaderBase<Edge> > edgeLabelReader; |
---|
1930 | }; |
---|
1931 | |
---|
1932 | /// \ingroup section_io |
---|
1933 | /// \brief SectionReader for attributes. |
---|
1934 | /// |
---|
1935 | /// The lemon format can store multiple attribute set. Each set has |
---|
1936 | /// the header line \c \@attributes \c attributeset_name, but the |
---|
1937 | /// attributeset_name may be empty. |
---|
1938 | /// |
---|
1939 | /// The attributeset section contains several lines. Each of them starts |
---|
1940 | /// with an attribute and then a the value for the id. |
---|
1941 | /// |
---|
1942 | /// \relates LemonReader |
---|
1943 | template <typename _Traits = DefaultReaderTraits> |
---|
1944 | class AttributeReader : public LemonReader::SectionReader { |
---|
1945 | typedef LemonReader::SectionReader Parent; |
---|
1946 | typedef _Traits Traits; |
---|
1947 | public: |
---|
1948 | /// \brief Constructor. |
---|
1949 | /// |
---|
1950 | /// Constructor for AttributeReader. It creates the AttributeReader and |
---|
1951 | /// attach it into the given LemonReader. The reader process a section |
---|
1952 | /// only if the \c section_name and the \c _name are the same. |
---|
1953 | AttributeReader(LemonReader& _reader, |
---|
1954 | const std::string& _name = std::string()) |
---|
1955 | : Parent(_reader), name(_name) {} |
---|
1956 | |
---|
1957 | /// \brief Destructor. |
---|
1958 | /// |
---|
1959 | /// Destructor for AttributeReader. |
---|
1960 | virtual ~AttributeReader() { |
---|
1961 | for (typename Readers::iterator it = readers.begin(); |
---|
1962 | it != readers.end(); ++it) { |
---|
1963 | delete it->second; |
---|
1964 | } |
---|
1965 | } |
---|
1966 | |
---|
1967 | private: |
---|
1968 | AttributeReader(const AttributeReader&); |
---|
1969 | void operator=(AttributeReader&); |
---|
1970 | |
---|
1971 | public: |
---|
1972 | /// \brief Add an attribute reader command for the reader. |
---|
1973 | /// |
---|
1974 | /// Add an attribute reader command for the reader. |
---|
1975 | template <typename Value> |
---|
1976 | AttributeReader& readAttribute(const std::string& label, Value& value) { |
---|
1977 | return readAttribute<typename Traits::template Reader<Value> > |
---|
1978 | (label, value); |
---|
1979 | } |
---|
1980 | |
---|
1981 | /// \brief Add an attribute reader command for the reader. |
---|
1982 | /// |
---|
1983 | /// Add an attribute reader command for the reader. |
---|
1984 | template <typename ItemReader, typename Value> |
---|
1985 | AttributeReader& readAttribute(const std::string& label, Value& value, |
---|
1986 | const ItemReader& ir = ItemReader()) { |
---|
1987 | checkConcept<_reader_bits::ItemReader<Value>, ItemReader>(); |
---|
1988 | if (readers.find(label) != readers.end()) { |
---|
1989 | ErrorMessage msg; |
---|
1990 | msg << "Multiple read rule for attribute: " << label; |
---|
1991 | throw IoParameterError(msg.message()); |
---|
1992 | } |
---|
1993 | readers.insert(make_pair(label, new _reader_bits:: |
---|
1994 | ValueReader<Value, ItemReader>(value, ir))); |
---|
1995 | return *this; |
---|
1996 | } |
---|
1997 | |
---|
1998 | protected: |
---|
1999 | |
---|
2000 | /// \brief Gives back true when the SectionReader can process |
---|
2001 | /// the section with the given header line. |
---|
2002 | /// |
---|
2003 | /// It gives back true when the header line start with \c \@attributes, |
---|
2004 | /// and the header line's id and the attributeset's id are the same. |
---|
2005 | bool header(const std::string& line) { |
---|
2006 | std::istringstream ls(line); |
---|
2007 | std::string command; |
---|
2008 | std::string id; |
---|
2009 | ls >> command >> id; |
---|
2010 | return command == "@attributes" && name == id; |
---|
2011 | } |
---|
2012 | |
---|
2013 | /// \brief Reader function of the section. |
---|
2014 | /// |
---|
2015 | /// It reads the content of the section. |
---|
2016 | void read(std::istream& is) { |
---|
2017 | std::string line; |
---|
2018 | while (getline(is, line)) { |
---|
2019 | std::istringstream ls(line); |
---|
2020 | std::string id; |
---|
2021 | ls >> id; |
---|
2022 | typename Readers::iterator it = readers.find(id); |
---|
2023 | if (it != readers.end()) { |
---|
2024 | it->second->read(ls); |
---|
2025 | it->second->touch(); |
---|
2026 | } |
---|
2027 | } |
---|
2028 | for (typename Readers::iterator it = readers.begin(); |
---|
2029 | it != readers.end(); ++it) { |
---|
2030 | if (!it->second->touched()) { |
---|
2031 | ErrorMessage msg; |
---|
2032 | msg << "Attribute not found in file: " << it->first; |
---|
2033 | throw IoParameterError(msg.message()); |
---|
2034 | } |
---|
2035 | } |
---|
2036 | } |
---|
2037 | |
---|
2038 | virtual void missing() { |
---|
2039 | if (readers.empty()) return; |
---|
2040 | ErrorMessage msg; |
---|
2041 | msg << "Attribute section not found in file: @attributes " << name; |
---|
2042 | throw IoParameterError(msg.message()); |
---|
2043 | } |
---|
2044 | |
---|
2045 | private: |
---|
2046 | std::string name; |
---|
2047 | |
---|
2048 | typedef std::map<std::string, _reader_bits::ValueReaderBase*> Readers; |
---|
2049 | Readers readers; |
---|
2050 | }; |
---|
2051 | |
---|
2052 | /// \ingroup section_io |
---|
2053 | /// \brief SectionReader for retrieve what is in the file. |
---|
2054 | /// |
---|
2055 | /// SectionReader for retrieve what is in the file. If you want |
---|
2056 | /// to know which sections, maps and items are in the file |
---|
2057 | /// use the next code: |
---|
2058 | ///\code |
---|
2059 | /// LemonReader reader("input.lgf"); |
---|
2060 | /// ContentReader content(reader); |
---|
2061 | /// reader.run(); |
---|
2062 | ///\endcode |
---|
2063 | class ContentReader : public LemonReader::SectionReader { |
---|
2064 | typedef LemonReader::SectionReader Parent; |
---|
2065 | public: |
---|
2066 | /// \brief Constructor. |
---|
2067 | /// |
---|
2068 | /// Constructor for |
---|
2069 | ContentReader(LemonReader& _reader) : Parent(_reader) {} |
---|
2070 | |
---|
2071 | /// \brief Desctructor. |
---|
2072 | /// |
---|
2073 | /// Desctructor. |
---|
2074 | virtual ~ContentReader() {} |
---|
2075 | |
---|
2076 | /// \brief Gives back how many nodesets are in the file. |
---|
2077 | /// |
---|
2078 | /// Gives back how many nodesets are in the file. |
---|
2079 | int nodeSetNum() const { |
---|
2080 | return nodesets.size(); |
---|
2081 | } |
---|
2082 | |
---|
2083 | /// \brief Gives back the name of nodeset on the indiced position. |
---|
2084 | /// |
---|
2085 | /// Gives back the name of nodeset on the indiced position. |
---|
2086 | std::string nodeSetName(int index) const { |
---|
2087 | return nodesets[index].name; |
---|
2088 | } |
---|
2089 | |
---|
2090 | /// \brief Gives back the map names of nodeset on the indiced position. |
---|
2091 | /// |
---|
2092 | /// Gives back the map names of nodeset on the indiced position. |
---|
2093 | const std::vector<std::string>& nodeSetMaps(int index) const { |
---|
2094 | return nodesets[index].items; |
---|
2095 | } |
---|
2096 | |
---|
2097 | /// \brief Gives back how many edgesets are in the file. |
---|
2098 | /// |
---|
2099 | /// Gives back how many edgesets are in the file. |
---|
2100 | int edgeSetNum() const { |
---|
2101 | return edgesets.size(); |
---|
2102 | } |
---|
2103 | |
---|
2104 | /// \brief Gives back the name of edgeset on the indiced position. |
---|
2105 | /// |
---|
2106 | /// Gives back the name of edgeset on the indiced position. |
---|
2107 | std::string edgeSetName(int index) const { |
---|
2108 | return edgesets[index].name; |
---|
2109 | } |
---|
2110 | |
---|
2111 | /// \brief Gives back the map names of edgeset on the indiced position. |
---|
2112 | /// |
---|
2113 | /// Gives back the map names of edgeset on the indiced position. |
---|
2114 | const std::vector<std::string>& edgeSetMaps(int index) const { |
---|
2115 | return edgesets[index].items; |
---|
2116 | } |
---|
2117 | |
---|
2118 | /// \brief Gives back how many undirected edgesets are in the file. |
---|
2119 | /// |
---|
2120 | /// Gives back how many undirected edgesets are in the file. |
---|
2121 | int uEdgeSetNum() const { |
---|
2122 | return uedgesets.size(); |
---|
2123 | } |
---|
2124 | |
---|
2125 | /// \brief Gives back the name of undirected edgeset on the indiced |
---|
2126 | /// position. |
---|
2127 | /// |
---|
2128 | /// Gives back the name of undirected edgeset on the indiced position. |
---|
2129 | std::string uEdgeSetName(int index) const { |
---|
2130 | return uedgesets[index].name; |
---|
2131 | } |
---|
2132 | |
---|
2133 | /// \brief Gives back the map names of undirected edgeset on the indiced |
---|
2134 | /// position. |
---|
2135 | /// |
---|
2136 | /// Gives back the map names of undirected edgeset on the indiced position. |
---|
2137 | const std::vector<std::string>& uEdgeSetMaps(int index) const { |
---|
2138 | return uedgesets[index].items; |
---|
2139 | } |
---|
2140 | |
---|
2141 | /// \brief Gives back how many labeled nodes section are in the file. |
---|
2142 | /// |
---|
2143 | /// Gives back how many labeled nodes section are in the file. |
---|
2144 | int nodesNum() const { |
---|
2145 | return nodes.size(); |
---|
2146 | } |
---|
2147 | |
---|
2148 | /// \brief Gives back the name of labeled nodes section on the indiced |
---|
2149 | /// position. |
---|
2150 | /// |
---|
2151 | /// Gives back the name of labeled nodes section on the indiced position. |
---|
2152 | std::string nodesName(int index) const { |
---|
2153 | return nodes[index].name; |
---|
2154 | } |
---|
2155 | |
---|
2156 | /// \brief Gives back the names of the labeled nodes in the indiced |
---|
2157 | /// section. |
---|
2158 | /// |
---|
2159 | /// Gives back the names of the labeled nodes in the indiced section. |
---|
2160 | const std::vector<std::string>& nodesItems(int index) const { |
---|
2161 | return nodes[index].items; |
---|
2162 | } |
---|
2163 | |
---|
2164 | /// \brief Gives back how many labeled edges section are in the file. |
---|
2165 | /// |
---|
2166 | /// Gives back how many labeled edges section are in the file. |
---|
2167 | int edgesNum() const { |
---|
2168 | return edges.size(); |
---|
2169 | } |
---|
2170 | |
---|
2171 | /// \brief Gives back the name of labeled edges section on the indiced |
---|
2172 | /// position. |
---|
2173 | /// |
---|
2174 | /// Gives back the name of labeled edges section on the indiced position. |
---|
2175 | std::string edgesName(int index) const { |
---|
2176 | return edges[index].name; |
---|
2177 | } |
---|
2178 | |
---|
2179 | /// \brief Gives back the names of the labeled edges in the indiced |
---|
2180 | /// section. |
---|
2181 | /// |
---|
2182 | /// Gives back the names of the labeled edges in the indiced section. |
---|
2183 | const std::vector<std::string>& edgesItems(int index) const { |
---|
2184 | return edges[index].items; |
---|
2185 | } |
---|
2186 | |
---|
2187 | /// \brief Gives back how many labeled undirected edges section are |
---|
2188 | /// in the file. |
---|
2189 | /// |
---|
2190 | /// Gives back how many labeled undirected edges section are in the file. |
---|
2191 | int uEdgesNum() const { |
---|
2192 | return uedges.size(); |
---|
2193 | } |
---|
2194 | |
---|
2195 | /// \brief Gives back the name of labeled undirected edges section |
---|
2196 | /// on the indiced position. |
---|
2197 | /// |
---|
2198 | /// Gives back the name of labeled undirected edges section on the |
---|
2199 | /// indiced position. |
---|
2200 | std::string uEdgesName(int index) const { |
---|
2201 | return uedges[index].name; |
---|
2202 | } |
---|
2203 | |
---|
2204 | /// \brief Gives back the names of the labeled undirected edges in |
---|
2205 | /// the indiced section. |
---|
2206 | /// |
---|
2207 | /// Gives back the names of the labeled undirected edges in the |
---|
2208 | /// indiced section. |
---|
2209 | const std::vector<std::string>& uEdgesItems(int index) const { |
---|
2210 | return uedges[index].items; |
---|
2211 | } |
---|
2212 | |
---|
2213 | |
---|
2214 | /// \brief Gives back how many attributes section are in the file. |
---|
2215 | /// |
---|
2216 | /// Gives back how many attributes section are in the file. |
---|
2217 | int attributesNum() const { |
---|
2218 | return attributes.size(); |
---|
2219 | } |
---|
2220 | |
---|
2221 | /// \brief Gives back the name of attributes section on the indiced |
---|
2222 | /// position. |
---|
2223 | /// |
---|
2224 | /// Gives back the name of attributes section on the indiced position. |
---|
2225 | std::string attributesName(int index) const { |
---|
2226 | return attributes[index].name; |
---|
2227 | } |
---|
2228 | |
---|
2229 | /// \brief Gives back the names of the attributes in the indiced section. |
---|
2230 | /// |
---|
2231 | /// Gives back the names of the attributes in the indiced section. |
---|
2232 | const std::vector<std::string>& attributesItems(int index) const { |
---|
2233 | return attributes[index].items; |
---|
2234 | } |
---|
2235 | |
---|
2236 | const std::vector<std::string>& otherSections() const { |
---|
2237 | return sections; |
---|
2238 | } |
---|
2239 | |
---|
2240 | protected: |
---|
2241 | |
---|
2242 | /// \brief Gives back true when the SectionReader can process |
---|
2243 | /// the section with the given header line. |
---|
2244 | /// |
---|
2245 | /// It gives back true when the section is common section. |
---|
2246 | bool header(const std::string& line) { |
---|
2247 | std::istringstream ls(line); |
---|
2248 | std::string command, name; |
---|
2249 | ls >> command >> name; |
---|
2250 | if (command == "@nodeset") { |
---|
2251 | current = command; |
---|
2252 | nodesets.push_back(SectionInfo(name)); |
---|
2253 | } else if (command == "@edgeset") { |
---|
2254 | current = command; |
---|
2255 | edgesets.push_back(SectionInfo(name)); |
---|
2256 | } else if (command == "@uedgeset") { |
---|
2257 | current = command; |
---|
2258 | uedgesets.push_back(SectionInfo(name)); |
---|
2259 | } else if (command == "@nodes") { |
---|
2260 | current = command; |
---|
2261 | nodes.push_back(SectionInfo(name)); |
---|
2262 | } else if (command == "@edges") { |
---|
2263 | current = command; |
---|
2264 | edges.push_back(SectionInfo(name)); |
---|
2265 | } else if (command == "@uedges") { |
---|
2266 | current = command; |
---|
2267 | uedges.push_back(SectionInfo(name)); |
---|
2268 | } else if (command == "@attributes") { |
---|
2269 | current = command; |
---|
2270 | attributes.push_back(SectionInfo(name)); |
---|
2271 | } else { |
---|
2272 | sections.push_back(line); |
---|
2273 | return false; |
---|
2274 | } |
---|
2275 | return true; |
---|
2276 | } |
---|
2277 | |
---|
2278 | /// \brief Retrieve the items from various sections. |
---|
2279 | /// |
---|
2280 | /// Retrieve the items from various sections. |
---|
2281 | void read(std::istream& is) { |
---|
2282 | if (current == "@nodeset") { |
---|
2283 | readMapNames(is, nodesets.back().items); |
---|
2284 | } else if (current == "@edgeset") { |
---|
2285 | readMapNames(is, edgesets.back().items); |
---|
2286 | } else if (current == "@uedgeset") { |
---|
2287 | readMapNames(is, uedgesets.back().items); |
---|
2288 | } else if (current == "@nodes") { |
---|
2289 | readItemNames(is, nodes.back().items); |
---|
2290 | } else if (current == "@edges") { |
---|
2291 | readItemNames(is, edges.back().items); |
---|
2292 | } else if (current == "@uedges") { |
---|
2293 | readItemNames(is, uedges.back().items); |
---|
2294 | } else if (current == "@attributes") { |
---|
2295 | readItemNames(is, attributes.back().items); |
---|
2296 | } |
---|
2297 | } |
---|
2298 | |
---|
2299 | private: |
---|
2300 | |
---|
2301 | void readMapNames(std::istream& is, std::vector<std::string>& maps) { |
---|
2302 | std::string line, name; |
---|
2303 | std::getline(is, line); |
---|
2304 | std::istringstream ls(line); |
---|
2305 | while (ls >> name) { |
---|
2306 | maps.push_back(name); |
---|
2307 | } |
---|
2308 | while (getline(is, line)); |
---|
2309 | } |
---|
2310 | |
---|
2311 | void readItemNames(std::istream& is, std::vector<std::string>& maps) { |
---|
2312 | std::string line, name; |
---|
2313 | while (std::getline(is, line)) { |
---|
2314 | std::istringstream ls(line); |
---|
2315 | ls >> name; |
---|
2316 | maps.push_back(name); |
---|
2317 | } |
---|
2318 | } |
---|
2319 | |
---|
2320 | struct SectionInfo { |
---|
2321 | std::string name; |
---|
2322 | std::vector<std::string> items; |
---|
2323 | |
---|
2324 | SectionInfo(const std::string& _name) : name(_name) {} |
---|
2325 | }; |
---|
2326 | |
---|
2327 | std::vector<SectionInfo> nodesets; |
---|
2328 | std::vector<SectionInfo> edgesets; |
---|
2329 | std::vector<SectionInfo> uedgesets; |
---|
2330 | |
---|
2331 | std::vector<SectionInfo> nodes; |
---|
2332 | std::vector<SectionInfo> edges; |
---|
2333 | std::vector<SectionInfo> uedges; |
---|
2334 | |
---|
2335 | std::vector<SectionInfo> attributes; |
---|
2336 | |
---|
2337 | std::vector<std::string> sections; |
---|
2338 | |
---|
2339 | std::string current; |
---|
2340 | |
---|
2341 | }; |
---|
2342 | |
---|
2343 | } |
---|
2344 | #endif |
---|