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) 2003-2008 |
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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 Graph Format writer. |
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22 | |
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23 | |
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24 | #ifndef LEMON_LGF_WRITER_H |
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25 | #define LEMON_LGF_WRITER_H |
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26 | |
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27 | #include <iostream> |
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28 | #include <fstream> |
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29 | #include <sstream> |
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30 | |
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31 | #include <algorithm> |
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32 | |
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33 | #include <vector> |
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34 | #include <functional> |
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35 | |
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36 | #include <lemon/assert.h> |
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37 | #include <lemon/graph_utils.h> |
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38 | |
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39 | namespace lemon { |
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40 | |
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41 | namespace _writer_bits { |
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42 | |
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43 | template <typename Value> |
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44 | struct DefaultConverter { |
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45 | std::string operator()(const Value& value) { |
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46 | std::ostringstream os; |
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47 | os << value; |
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48 | return os.str(); |
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49 | } |
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50 | }; |
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51 | |
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52 | template <typename T> |
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53 | bool operator<(const T&, const T&) { |
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54 | throw DataFormatError("Label map is not comparable"); |
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55 | } |
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56 | |
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57 | template <typename _Map> |
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58 | class MapLess { |
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59 | public: |
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60 | typedef _Map Map; |
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61 | typedef typename Map::Key Item; |
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62 | |
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63 | private: |
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64 | const Map& _map; |
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65 | |
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66 | public: |
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67 | MapLess(const Map& map) : _map(map) {} |
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68 | |
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69 | bool operator()(const Item& left, const Item& right) { |
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70 | return _map[left] < _map[right]; |
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71 | } |
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72 | }; |
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73 | |
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74 | template <typename _Graph, bool _dir, typename _Map> |
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75 | class GraphArcMapLess { |
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76 | public: |
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77 | typedef _Map Map; |
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78 | typedef _Graph Graph; |
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79 | typedef typename Graph::Edge Item; |
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80 | |
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81 | private: |
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82 | const Graph& _graph; |
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83 | const Map& _map; |
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84 | |
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85 | public: |
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86 | GraphArcMapLess(const Graph& graph, const Map& map) |
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87 | : _graph(graph), _map(map) {} |
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88 | |
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89 | bool operator()(const Item& left, const Item& right) { |
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90 | return _map[_graph.direct(left, _dir)] < |
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91 | _map[_graph.direct(right, _dir)]; |
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92 | } |
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93 | }; |
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94 | |
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95 | template <typename _Item> |
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96 | class MapStorageBase { |
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97 | public: |
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98 | typedef _Item Item; |
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99 | |
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100 | public: |
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101 | MapStorageBase() {} |
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102 | virtual ~MapStorageBase() {} |
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103 | |
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104 | virtual std::string get(const Item& item) = 0; |
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105 | virtual void sort(std::vector<Item>&) = 0; |
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106 | }; |
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107 | |
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108 | template <typename _Item, typename _Map, |
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109 | typename _Converter = DefaultConverter<typename _Map::Value> > |
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110 | class MapStorage : public MapStorageBase<_Item> { |
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111 | public: |
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112 | typedef _Map Map; |
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113 | typedef _Converter Converter; |
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114 | typedef _Item Item; |
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115 | |
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116 | private: |
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117 | const Map& _map; |
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118 | Converter _converter; |
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119 | |
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120 | public: |
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121 | MapStorage(const Map& map, const Converter& converter = Converter()) |
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122 | : _map(map), _converter(converter) {} |
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123 | virtual ~MapStorage() {} |
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124 | |
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125 | virtual std::string get(const Item& item) { |
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126 | return _converter(_map[item]); |
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127 | } |
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128 | virtual void sort(std::vector<Item>& items) { |
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129 | MapLess<Map> less(_map); |
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130 | std::sort(items.begin(), items.end(), less); |
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131 | } |
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132 | }; |
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133 | |
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134 | template <typename _Graph, bool _dir, typename _Map, |
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135 | typename _Converter = DefaultConverter<typename _Map::Value> > |
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136 | class GraphArcMapStorage : public MapStorageBase<typename _Graph::Edge> { |
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137 | public: |
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138 | typedef _Map Map; |
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139 | typedef _Converter Converter; |
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140 | typedef _Graph Graph; |
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141 | typedef typename Graph::Edge Item; |
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142 | static const bool dir = _dir; |
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143 | |
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144 | private: |
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145 | const Graph& _graph; |
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146 | const Map& _map; |
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147 | Converter _converter; |
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148 | |
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149 | public: |
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150 | GraphArcMapStorage(const Graph& graph, const Map& map, |
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151 | const Converter& converter = Converter()) |
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152 | : _graph(graph), _map(map), _converter(converter) {} |
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153 | virtual ~GraphArcMapStorage() {} |
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154 | |
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155 | virtual std::string get(const Item& item) { |
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156 | return _converter(_map[_graph.direct(item, dir)]); |
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157 | } |
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158 | virtual void sort(std::vector<Item>& items) { |
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159 | GraphArcMapLess<Graph, dir, Map> less(_graph, _map); |
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160 | std::sort(items.begin(), items.end(), less); |
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161 | } |
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162 | }; |
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163 | |
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164 | class ValueStorageBase { |
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165 | public: |
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166 | ValueStorageBase() {} |
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167 | virtual ~ValueStorageBase() {} |
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168 | |
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169 | virtual std::string get() = 0; |
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170 | }; |
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171 | |
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172 | template <typename _Value, typename _Converter = DefaultConverter<_Value> > |
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173 | class ValueStorage : public ValueStorageBase { |
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174 | public: |
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175 | typedef _Value Value; |
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176 | typedef _Converter Converter; |
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177 | |
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178 | private: |
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179 | const Value& _value; |
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180 | Converter _converter; |
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181 | |
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182 | public: |
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183 | ValueStorage(const Value& value, const Converter& converter = Converter()) |
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184 | : _value(value), _converter(converter) {} |
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185 | |
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186 | virtual std::string get() { |
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187 | return _converter(_value); |
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188 | } |
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189 | }; |
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190 | |
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191 | template <typename Value> |
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192 | struct MapLookUpConverter { |
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193 | const std::map<Value, std::string>& _map; |
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194 | |
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195 | MapLookUpConverter(const std::map<Value, std::string>& map) |
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196 | : _map(map) {} |
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197 | |
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198 | std::string operator()(const Value& str) { |
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199 | typename std::map<Value, std::string>::const_iterator it = |
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200 | _map.find(str); |
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201 | if (it == _map.end()) { |
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202 | throw DataFormatError("Item not found"); |
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203 | } |
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204 | return it->second; |
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205 | } |
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206 | }; |
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207 | |
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208 | template <typename Graph> |
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209 | struct GraphArcLookUpConverter { |
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210 | const Graph& _graph; |
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211 | const std::map<typename Graph::Edge, std::string>& _map; |
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212 | |
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213 | GraphArcLookUpConverter(const Graph& graph, |
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214 | const std::map<typename Graph::Edge, |
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215 | std::string>& map) |
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216 | : _graph(graph), _map(map) {} |
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217 | |
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218 | std::string operator()(const typename Graph::Arc& val) { |
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219 | typename std::map<typename Graph::Edge, std::string> |
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220 | ::const_iterator it = _map.find(val); |
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221 | if (it == _map.end()) { |
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222 | throw DataFormatError("Item not found"); |
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223 | } |
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224 | return (_graph.direction(val) ? '+' : '-') + it->second; |
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225 | } |
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226 | }; |
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227 | |
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228 | bool isWhiteSpace(char c) { |
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229 | return c == ' ' || c == '\t' || c == '\v' || |
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230 | c == '\n' || c == '\r' || c == '\f'; |
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231 | } |
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232 | |
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233 | bool isEscaped(char c) { |
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234 | return c == '\\' || c == '\"' || c == '\'' || |
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235 | c == '\a' || c == '\b'; |
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236 | } |
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237 | |
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238 | static void writeEscape(std::ostream& os, char c) { |
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239 | switch (c) { |
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240 | case '\\': |
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241 | os << "\\\\"; |
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242 | return; |
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243 | case '\"': |
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244 | os << "\\\""; |
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245 | return; |
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246 | case '\a': |
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247 | os << "\\a"; |
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248 | return; |
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249 | case '\b': |
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250 | os << "\\b"; |
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251 | return; |
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252 | case '\f': |
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253 | os << "\\f"; |
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254 | return; |
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255 | case '\r': |
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256 | os << "\\r"; |
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257 | return; |
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258 | case '\n': |
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259 | os << "\\n"; |
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260 | return; |
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261 | case '\t': |
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262 | os << "\\t"; |
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263 | return; |
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264 | case '\v': |
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265 | os << "\\v"; |
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266 | return; |
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267 | default: |
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268 | if (c < 0x20) { |
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269 | std::ios::fmtflags flags = os.flags(); |
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270 | os << '\\' << std::oct << static_cast<int>(c); |
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271 | os.flags(flags); |
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272 | } else { |
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273 | os << c; |
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274 | } |
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275 | return; |
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276 | } |
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277 | } |
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278 | |
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279 | bool requireEscape(const std::string& str) { |
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280 | if (str.empty() || str[0] == '@') return true; |
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281 | std::istringstream is(str); |
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282 | char c; |
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283 | while (is.get(c)) { |
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284 | if (isWhiteSpace(c) || isEscaped(c)) { |
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285 | return true; |
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286 | } |
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287 | } |
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288 | return false; |
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289 | } |
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290 | |
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291 | std::ostream& writeToken(std::ostream& os, const std::string& str) { |
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292 | |
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293 | if (requireEscape(str)) { |
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294 | os << '\"'; |
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295 | for (std::string::const_iterator it = str.begin(); |
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296 | it != str.end(); ++it) { |
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297 | writeEscape(os, *it); |
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298 | } |
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299 | os << '\"'; |
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300 | } else { |
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301 | os << str; |
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302 | } |
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303 | return os; |
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304 | } |
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305 | |
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306 | } |
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307 | |
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308 | template <typename Digraph> |
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309 | class DigraphWriter; |
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310 | |
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311 | template <typename Digraph> |
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312 | DigraphWriter<Digraph> digraphWriter(std::ostream& os, |
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313 | const Digraph& digraph); |
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314 | |
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315 | template <typename Digraph> |
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316 | DigraphWriter<Digraph> digraphWriter(const std::string& fn, |
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317 | const Digraph& digraph); |
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318 | |
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319 | template <typename Digraph> |
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320 | DigraphWriter<Digraph> digraphWriter(const char *fn, |
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321 | const Digraph& digraph); |
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322 | |
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323 | /// \ingroup lemon_io |
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324 | /// |
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325 | /// \brief LGF writer for directed graphs |
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326 | /// |
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327 | /// This utility writes an \ref lgf-format "LGF" file. |
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328 | /// |
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329 | /// The writing method does a batch processing. The user creates a |
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330 | /// writer object, then various writing rules can be added to the |
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331 | /// writer, and eventually the writing is executed with the \c run() |
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332 | /// member function. A map writing rule can be added to the writer |
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333 | /// with the \c nodeMap() or \c arcMap() members. An optional |
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334 | /// converter parameter can also be added as a standard functor |
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335 | /// converting from the value type of the map to std::string. If it |
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336 | /// is set, it will determine how the map's value type is written to |
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337 | /// the output stream. If the functor is not set, then a default |
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338 | /// conversion will be used. The \c attribute(), \c node() and \c |
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339 | /// arc() functions are used to add attribute writing rules. |
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340 | /// |
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341 | ///\code |
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342 | /// DigraphWriter<Digraph>(std::cout, digraph). |
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343 | /// nodeMap("coordinates", coord_map). |
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344 | /// nodeMap("size", size). |
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345 | /// nodeMap("title", title). |
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346 | /// arcMap("capacity", cap_map). |
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347 | /// node("source", src). |
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348 | /// node("target", trg). |
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349 | /// attribute("caption", caption). |
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350 | /// run(); |
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351 | ///\endcode |
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352 | /// |
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353 | /// |
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354 | /// By default, the writer does not write additional captions to the |
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355 | /// sections, but they can be give as an optional parameter of |
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356 | /// the \c nodes(), \c arcs() or \c |
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357 | /// attributes() functions. |
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358 | /// |
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359 | /// The \c skipNodes() and \c skipArcs() functions forbid the |
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360 | /// writing of the sections. If two arc sections should be written |
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361 | /// to the output, it can be done in two passes, the first pass |
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362 | /// writes the node section and the first arc section, then the |
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363 | /// second pass skips the node section and writes just the arc |
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364 | /// section to the stream. The output stream can be retrieved with |
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365 | /// the \c ostream() function, hence the second pass can append its |
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366 | /// output to the output of the first pass. |
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367 | template <typename _Digraph> |
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368 | class DigraphWriter { |
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369 | public: |
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370 | |
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371 | typedef _Digraph Digraph; |
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372 | TEMPLATE_DIGRAPH_TYPEDEFS(Digraph); |
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373 | |
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374 | private: |
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375 | |
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376 | |
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377 | std::ostream* _os; |
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378 | bool local_os; |
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379 | |
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380 | const Digraph& _digraph; |
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381 | |
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382 | std::string _nodes_caption; |
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383 | std::string _arcs_caption; |
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384 | std::string _attributes_caption; |
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385 | |
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386 | typedef std::map<Node, std::string> NodeIndex; |
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387 | NodeIndex _node_index; |
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388 | typedef std::map<Arc, std::string> ArcIndex; |
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389 | ArcIndex _arc_index; |
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390 | |
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391 | typedef std::vector<std::pair<std::string, |
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392 | _writer_bits::MapStorageBase<Node>* > > NodeMaps; |
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393 | NodeMaps _node_maps; |
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394 | |
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395 | typedef std::vector<std::pair<std::string, |
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396 | _writer_bits::MapStorageBase<Arc>* > >ArcMaps; |
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397 | ArcMaps _arc_maps; |
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398 | |
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399 | typedef std::vector<std::pair<std::string, |
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400 | _writer_bits::ValueStorageBase*> > Attributes; |
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401 | Attributes _attributes; |
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402 | |
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403 | bool _skip_nodes; |
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404 | bool _skip_arcs; |
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405 | |
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406 | public: |
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407 | |
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408 | /// \brief Constructor |
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409 | /// |
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410 | /// Construct a directed graph writer, which writes to the given |
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411 | /// output stream. |
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412 | DigraphWriter(std::ostream& is, const Digraph& digraph) |
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413 | : _os(&is), local_os(false), _digraph(digraph), |
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414 | _skip_nodes(false), _skip_arcs(false) {} |
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415 | |
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416 | /// \brief Constructor |
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417 | /// |
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418 | /// Construct a directed graph writer, which writes to the given |
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419 | /// output file. |
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420 | DigraphWriter(const std::string& fn, const Digraph& digraph) |
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421 | : _os(new std::ofstream(fn.c_str())), local_os(true), _digraph(digraph), |
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422 | _skip_nodes(false), _skip_arcs(false) {} |
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423 | |
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424 | /// \brief Constructor |
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425 | /// |
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426 | /// Construct a directed graph writer, which writes to the given |
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427 | /// output file. |
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428 | DigraphWriter(const char* fn, const Digraph& digraph) |
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429 | : _os(new std::ofstream(fn)), local_os(true), _digraph(digraph), |
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430 | _skip_nodes(false), _skip_arcs(false) {} |
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431 | |
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432 | /// \brief Destructor |
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433 | ~DigraphWriter() { |
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434 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
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435 | it != _node_maps.end(); ++it) { |
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436 | delete it->second; |
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437 | } |
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438 | |
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439 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
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440 | it != _arc_maps.end(); ++it) { |
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441 | delete it->second; |
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442 | } |
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443 | |
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444 | for (typename Attributes::iterator it = _attributes.begin(); |
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445 | it != _attributes.end(); ++it) { |
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446 | delete it->second; |
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447 | } |
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448 | |
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449 | if (local_os) { |
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450 | delete _os; |
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451 | } |
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452 | } |
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453 | |
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454 | private: |
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455 | |
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456 | friend DigraphWriter<Digraph> digraphWriter<>(std::ostream& os, |
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457 | const Digraph& digraph); |
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458 | friend DigraphWriter<Digraph> digraphWriter<>(const std::string& fn, |
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459 | const Digraph& digraph); |
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460 | friend DigraphWriter<Digraph> digraphWriter<>(const char *fn, |
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461 | const Digraph& digraph); |
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462 | |
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463 | DigraphWriter(DigraphWriter& other) |
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464 | : _os(other._os), local_os(other.local_os), _digraph(other._digraph), |
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465 | _skip_nodes(other._skip_nodes), _skip_arcs(other._skip_arcs) { |
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466 | |
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467 | other._os = 0; |
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468 | other.local_os = false; |
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469 | |
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470 | _node_index.swap(other._node_index); |
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471 | _arc_index.swap(other._arc_index); |
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472 | |
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473 | _node_maps.swap(other._node_maps); |
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474 | _arc_maps.swap(other._arc_maps); |
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475 | _attributes.swap(other._attributes); |
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476 | |
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477 | _nodes_caption = other._nodes_caption; |
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478 | _arcs_caption = other._arcs_caption; |
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479 | _attributes_caption = other._attributes_caption; |
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480 | } |
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481 | |
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482 | DigraphWriter& operator=(const DigraphWriter&); |
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483 | |
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484 | public: |
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485 | |
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486 | /// \name Writing rules |
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487 | /// @{ |
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488 | |
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489 | /// \brief Node map reading rule |
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490 | /// |
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491 | /// Add a node map reading rule to the writer. |
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492 | template <typename Map> |
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493 | DigraphWriter& nodeMap(const std::string& caption, const Map& map) { |
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494 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
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495 | _writer_bits::MapStorageBase<Node>* storage = |
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496 | new _writer_bits::MapStorage<Node, Map>(map); |
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497 | _node_maps.push_back(std::make_pair(caption, storage)); |
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498 | return *this; |
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499 | } |
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500 | |
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501 | /// \brief Node map writing rule |
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502 | /// |
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503 | /// Add a node map writing rule with specialized converter to the |
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504 | /// writer. |
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505 | template <typename Map, typename Converter> |
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506 | DigraphWriter& nodeMap(const std::string& caption, const Map& map, |
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507 | const Converter& converter = Converter()) { |
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508 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
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509 | _writer_bits::MapStorageBase<Node>* storage = |
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510 | new _writer_bits::MapStorage<Node, Map, Converter>(map, converter); |
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511 | _node_maps.push_back(std::make_pair(caption, storage)); |
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512 | return *this; |
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513 | } |
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514 | |
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515 | /// \brief Arc map writing rule |
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516 | /// |
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517 | /// Add an arc map writing rule to the writer. |
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518 | template <typename Map> |
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519 | DigraphWriter& arcMap(const std::string& caption, const Map& map) { |
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520 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
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521 | _writer_bits::MapStorageBase<Arc>* storage = |
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522 | new _writer_bits::MapStorage<Arc, Map>(map); |
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523 | _arc_maps.push_back(std::make_pair(caption, storage)); |
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524 | return *this; |
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525 | } |
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526 | |
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527 | /// \brief Arc map writing rule |
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528 | /// |
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529 | /// Add an arc map writing rule with specialized converter to the |
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530 | /// writer. |
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531 | template <typename Map, typename Converter> |
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532 | DigraphWriter& arcMap(const std::string& caption, const Map& map, |
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533 | const Converter& converter = Converter()) { |
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534 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
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535 | _writer_bits::MapStorageBase<Arc>* storage = |
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536 | new _writer_bits::MapStorage<Arc, Map, Converter>(map, converter); |
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537 | _arc_maps.push_back(std::make_pair(caption, storage)); |
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538 | return *this; |
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539 | } |
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540 | |
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541 | /// \brief Attribute writing rule |
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542 | /// |
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543 | /// Add an attribute writing rule to the writer. |
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544 | template <typename Value> |
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545 | DigraphWriter& attribute(const std::string& caption, const Value& value) { |
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546 | _writer_bits::ValueStorageBase* storage = |
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547 | new _writer_bits::ValueStorage<Value>(value); |
---|
548 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
549 | return *this; |
---|
550 | } |
---|
551 | |
---|
552 | /// \brief Attribute writing rule |
---|
553 | /// |
---|
554 | /// Add an attribute writing rule with specialized converter to the |
---|
555 | /// writer. |
---|
556 | template <typename Value, typename Converter> |
---|
557 | DigraphWriter& attribute(const std::string& caption, const Value& value, |
---|
558 | const Converter& converter = Converter()) { |
---|
559 | _writer_bits::ValueStorageBase* storage = |
---|
560 | new _writer_bits::ValueStorage<Value, Converter>(value, converter); |
---|
561 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
562 | return *this; |
---|
563 | } |
---|
564 | |
---|
565 | /// \brief Node writing rule |
---|
566 | /// |
---|
567 | /// Add a node writing rule to the writer. |
---|
568 | DigraphWriter& node(const std::string& caption, const Node& node) { |
---|
569 | typedef _writer_bits::MapLookUpConverter<Node> Converter; |
---|
570 | Converter converter(_node_index); |
---|
571 | _writer_bits::ValueStorageBase* storage = |
---|
572 | new _writer_bits::ValueStorage<Node, Converter>(node, converter); |
---|
573 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
574 | return *this; |
---|
575 | } |
---|
576 | |
---|
577 | /// \brief Arc writing rule |
---|
578 | /// |
---|
579 | /// Add an arc writing rule to writer. |
---|
580 | DigraphWriter& arc(const std::string& caption, const Arc& arc) { |
---|
581 | typedef _writer_bits::MapLookUpConverter<Arc> Converter; |
---|
582 | Converter converter(_arc_index); |
---|
583 | _writer_bits::ValueStorageBase* storage = |
---|
584 | new _writer_bits::ValueStorage<Arc, Converter>(arc, converter); |
---|
585 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
586 | return *this; |
---|
587 | } |
---|
588 | |
---|
589 | /// \name Select section by name |
---|
590 | /// @{ |
---|
591 | |
---|
592 | /// \brief Set \c \@nodes section to be read |
---|
593 | /// |
---|
594 | /// Set \c \@nodes section to be read |
---|
595 | DigraphWriter& nodes(const std::string& caption) { |
---|
596 | _nodes_caption = caption; |
---|
597 | return *this; |
---|
598 | } |
---|
599 | |
---|
600 | /// \brief Set \c \@arcs section to be read |
---|
601 | /// |
---|
602 | /// Set \c \@arcs section to be read |
---|
603 | DigraphWriter& arcs(const std::string& caption) { |
---|
604 | _arcs_caption = caption; |
---|
605 | return *this; |
---|
606 | } |
---|
607 | |
---|
608 | /// \brief Set \c \@attributes section to be read |
---|
609 | /// |
---|
610 | /// Set \c \@attributes section to be read |
---|
611 | DigraphWriter& attributes(const std::string& caption) { |
---|
612 | _attributes_caption = caption; |
---|
613 | return *this; |
---|
614 | } |
---|
615 | |
---|
616 | /// \name Skipping section |
---|
617 | /// @{ |
---|
618 | |
---|
619 | /// \brief Skip writing the node set |
---|
620 | /// |
---|
621 | /// The \c \@nodes section will be not written to the stream. |
---|
622 | DigraphWriter& skipNodes() { |
---|
623 | LEMON_ASSERT(!_skip_nodes, "Multiple usage of skipNodes() member"); |
---|
624 | _skip_nodes = true; |
---|
625 | return *this; |
---|
626 | } |
---|
627 | |
---|
628 | /// \brief Skip writing arc set |
---|
629 | /// |
---|
630 | /// The \c \@arcs section will be not written to the stream. |
---|
631 | DigraphWriter& skipArcs() { |
---|
632 | LEMON_ASSERT(!_skip_arcs, "Multiple usage of skipArcs() member"); |
---|
633 | _skip_arcs = true; |
---|
634 | return *this; |
---|
635 | } |
---|
636 | |
---|
637 | /// @} |
---|
638 | |
---|
639 | private: |
---|
640 | |
---|
641 | void writeNodes() { |
---|
642 | _writer_bits::MapStorageBase<Node>* label = 0; |
---|
643 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
644 | it != _node_maps.end(); ++it) { |
---|
645 | if (it->first == "label") { |
---|
646 | label = it->second; |
---|
647 | break; |
---|
648 | } |
---|
649 | } |
---|
650 | |
---|
651 | *_os << "@nodes"; |
---|
652 | if (!_nodes_caption.empty()) { |
---|
653 | _writer_bits::writeToken(*_os << ' ', _nodes_caption); |
---|
654 | } |
---|
655 | *_os << std::endl; |
---|
656 | |
---|
657 | if (label == 0) { |
---|
658 | *_os << "label" << '\t'; |
---|
659 | } |
---|
660 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
661 | it != _node_maps.end(); ++it) { |
---|
662 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
663 | } |
---|
664 | *_os << std::endl; |
---|
665 | |
---|
666 | std::vector<Node> nodes; |
---|
667 | for (NodeIt n(_digraph); n != INVALID; ++n) { |
---|
668 | nodes.push_back(n); |
---|
669 | } |
---|
670 | |
---|
671 | if (label == 0) { |
---|
672 | IdMap<Digraph, Node> id_map(_digraph); |
---|
673 | _writer_bits::MapLess<IdMap<Digraph, Node> > id_less(id_map); |
---|
674 | std::sort(nodes.begin(), nodes.end(), id_less); |
---|
675 | } else { |
---|
676 | label->sort(nodes); |
---|
677 | } |
---|
678 | |
---|
679 | for (int i = 0; i < static_cast<int>(nodes.size()); ++i) { |
---|
680 | Node n = nodes[i]; |
---|
681 | if (label == 0) { |
---|
682 | std::ostringstream os; |
---|
683 | os << _digraph.id(n); |
---|
684 | _writer_bits::writeToken(*_os, os.str()); |
---|
685 | *_os << '\t'; |
---|
686 | _node_index.insert(std::make_pair(n, os.str())); |
---|
687 | } |
---|
688 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
689 | it != _node_maps.end(); ++it) { |
---|
690 | std::string value = it->second->get(n); |
---|
691 | _writer_bits::writeToken(*_os, value); |
---|
692 | if (it->first == "label") { |
---|
693 | _node_index.insert(std::make_pair(n, value)); |
---|
694 | } |
---|
695 | *_os << '\t'; |
---|
696 | } |
---|
697 | *_os << std::endl; |
---|
698 | } |
---|
699 | } |
---|
700 | |
---|
701 | void createNodeIndex() { |
---|
702 | _writer_bits::MapStorageBase<Node>* label = 0; |
---|
703 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
704 | it != _node_maps.end(); ++it) { |
---|
705 | if (it->first == "label") { |
---|
706 | label = it->second; |
---|
707 | break; |
---|
708 | } |
---|
709 | } |
---|
710 | |
---|
711 | if (label == 0) { |
---|
712 | for (NodeIt n(_digraph); n != INVALID; ++n) { |
---|
713 | std::ostringstream os; |
---|
714 | os << _digraph.id(n); |
---|
715 | _node_index.insert(std::make_pair(n, os.str())); |
---|
716 | } |
---|
717 | } else { |
---|
718 | for (NodeIt n(_digraph); n != INVALID; ++n) { |
---|
719 | std::string value = label->get(n); |
---|
720 | _node_index.insert(std::make_pair(n, value)); |
---|
721 | } |
---|
722 | } |
---|
723 | } |
---|
724 | |
---|
725 | void writeArcs() { |
---|
726 | _writer_bits::MapStorageBase<Arc>* label = 0; |
---|
727 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
728 | it != _arc_maps.end(); ++it) { |
---|
729 | if (it->first == "label") { |
---|
730 | label = it->second; |
---|
731 | break; |
---|
732 | } |
---|
733 | } |
---|
734 | |
---|
735 | *_os << "@arcs"; |
---|
736 | if (!_arcs_caption.empty()) { |
---|
737 | _writer_bits::writeToken(*_os << ' ', _arcs_caption); |
---|
738 | } |
---|
739 | *_os << std::endl; |
---|
740 | |
---|
741 | *_os << '\t' << '\t'; |
---|
742 | if (label == 0) { |
---|
743 | *_os << "label" << '\t'; |
---|
744 | } |
---|
745 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
746 | it != _arc_maps.end(); ++it) { |
---|
747 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
748 | } |
---|
749 | *_os << std::endl; |
---|
750 | |
---|
751 | std::vector<Arc> arcs; |
---|
752 | for (ArcIt n(_digraph); n != INVALID; ++n) { |
---|
753 | arcs.push_back(n); |
---|
754 | } |
---|
755 | |
---|
756 | if (label == 0) { |
---|
757 | IdMap<Digraph, Arc> id_map(_digraph); |
---|
758 | _writer_bits::MapLess<IdMap<Digraph, Arc> > id_less(id_map); |
---|
759 | std::sort(arcs.begin(), arcs.end(), id_less); |
---|
760 | } else { |
---|
761 | label->sort(arcs); |
---|
762 | } |
---|
763 | |
---|
764 | for (int i = 0; i < static_cast<int>(arcs.size()); ++i) { |
---|
765 | Arc a = arcs[i]; |
---|
766 | _writer_bits::writeToken(*_os, _node_index. |
---|
767 | find(_digraph.source(a))->second); |
---|
768 | *_os << '\t'; |
---|
769 | _writer_bits::writeToken(*_os, _node_index. |
---|
770 | find(_digraph.target(a))->second); |
---|
771 | *_os << '\t'; |
---|
772 | if (label == 0) { |
---|
773 | std::ostringstream os; |
---|
774 | os << _digraph.id(a); |
---|
775 | _writer_bits::writeToken(*_os, os.str()); |
---|
776 | *_os << '\t'; |
---|
777 | _arc_index.insert(std::make_pair(a, os.str())); |
---|
778 | } |
---|
779 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
780 | it != _arc_maps.end(); ++it) { |
---|
781 | std::string value = it->second->get(a); |
---|
782 | _writer_bits::writeToken(*_os, value); |
---|
783 | if (it->first == "label") { |
---|
784 | _arc_index.insert(std::make_pair(a, value)); |
---|
785 | } |
---|
786 | *_os << '\t'; |
---|
787 | } |
---|
788 | *_os << std::endl; |
---|
789 | } |
---|
790 | } |
---|
791 | |
---|
792 | void createArcIndex() { |
---|
793 | _writer_bits::MapStorageBase<Arc>* label = 0; |
---|
794 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
795 | it != _arc_maps.end(); ++it) { |
---|
796 | if (it->first == "label") { |
---|
797 | label = it->second; |
---|
798 | break; |
---|
799 | } |
---|
800 | } |
---|
801 | |
---|
802 | if (label == 0) { |
---|
803 | for (ArcIt a(_digraph); a != INVALID; ++a) { |
---|
804 | std::ostringstream os; |
---|
805 | os << _digraph.id(a); |
---|
806 | _arc_index.insert(std::make_pair(a, os.str())); |
---|
807 | } |
---|
808 | } else { |
---|
809 | for (ArcIt a(_digraph); a != INVALID; ++a) { |
---|
810 | std::string value = label->get(a); |
---|
811 | _arc_index.insert(std::make_pair(a, value)); |
---|
812 | } |
---|
813 | } |
---|
814 | } |
---|
815 | |
---|
816 | void writeAttributes() { |
---|
817 | if (_attributes.empty()) return; |
---|
818 | *_os << "@attributes"; |
---|
819 | if (!_attributes_caption.empty()) { |
---|
820 | _writer_bits::writeToken(*_os << ' ', _attributes_caption); |
---|
821 | } |
---|
822 | *_os << std::endl; |
---|
823 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
824 | it != _attributes.end(); ++it) { |
---|
825 | _writer_bits::writeToken(*_os, it->first) << ' '; |
---|
826 | _writer_bits::writeToken(*_os, it->second->get()); |
---|
827 | *_os << std::endl; |
---|
828 | } |
---|
829 | } |
---|
830 | |
---|
831 | public: |
---|
832 | |
---|
833 | /// \name Execution of the writer |
---|
834 | /// @{ |
---|
835 | |
---|
836 | /// \brief Start the batch processing |
---|
837 | /// |
---|
838 | /// This function starts the batch processing |
---|
839 | void run() { |
---|
840 | if (!_skip_nodes) { |
---|
841 | writeNodes(); |
---|
842 | } else { |
---|
843 | createNodeIndex(); |
---|
844 | } |
---|
845 | if (!_skip_arcs) { |
---|
846 | writeArcs(); |
---|
847 | } else { |
---|
848 | createArcIndex(); |
---|
849 | } |
---|
850 | writeAttributes(); |
---|
851 | } |
---|
852 | |
---|
853 | /// \brief Gives back the stream of the writer |
---|
854 | /// |
---|
855 | /// Gives back the stream of the writer |
---|
856 | std::ostream& ostream() { |
---|
857 | return *_os; |
---|
858 | } |
---|
859 | |
---|
860 | /// @} |
---|
861 | }; |
---|
862 | |
---|
863 | /// \relates DigraphWriter |
---|
864 | template <typename Digraph> |
---|
865 | DigraphWriter<Digraph> digraphWriter(std::ostream& os, |
---|
866 | const Digraph& digraph) { |
---|
867 | DigraphWriter<Digraph> tmp(os, digraph); |
---|
868 | return tmp; |
---|
869 | } |
---|
870 | |
---|
871 | /// \relates DigraphWriter |
---|
872 | template <typename Digraph> |
---|
873 | DigraphWriter<Digraph> digraphWriter(const std::string& fn, |
---|
874 | const Digraph& digraph) { |
---|
875 | DigraphWriter<Digraph> tmp(fn, digraph); |
---|
876 | return tmp; |
---|
877 | } |
---|
878 | |
---|
879 | /// \relates DigraphWriter |
---|
880 | template <typename Digraph> |
---|
881 | DigraphWriter<Digraph> digraphWriter(const char* fn, |
---|
882 | const Digraph& digraph) { |
---|
883 | DigraphWriter<Digraph> tmp(fn, digraph); |
---|
884 | return tmp; |
---|
885 | } |
---|
886 | |
---|
887 | template <typename Graph> |
---|
888 | class GraphWriter; |
---|
889 | |
---|
890 | template <typename Graph> |
---|
891 | GraphWriter<Graph> graphWriter(std::ostream& os, const Graph& graph); |
---|
892 | |
---|
893 | template <typename Graph> |
---|
894 | GraphWriter<Graph> graphWriter(const std::string& fn, const Graph& graph); |
---|
895 | |
---|
896 | template <typename Graph> |
---|
897 | GraphWriter<Graph> graphWriter(const char *fn, const Graph& graph); |
---|
898 | |
---|
899 | /// \ingroup lemon_io |
---|
900 | /// |
---|
901 | /// \brief LGF writer for directed graphs |
---|
902 | /// |
---|
903 | /// This utility writes an \ref lgf-format "LGF" file. |
---|
904 | template <typename _Graph> |
---|
905 | class GraphWriter { |
---|
906 | public: |
---|
907 | |
---|
908 | typedef _Graph Graph; |
---|
909 | TEMPLATE_GRAPH_TYPEDEFS(Graph); |
---|
910 | |
---|
911 | private: |
---|
912 | |
---|
913 | |
---|
914 | std::ostream* _os; |
---|
915 | bool local_os; |
---|
916 | |
---|
917 | Graph& _graph; |
---|
918 | |
---|
919 | std::string _nodes_caption; |
---|
920 | std::string _edges_caption; |
---|
921 | std::string _attributes_caption; |
---|
922 | |
---|
923 | typedef std::map<Node, std::string> NodeIndex; |
---|
924 | NodeIndex _node_index; |
---|
925 | typedef std::map<Edge, std::string> EdgeIndex; |
---|
926 | EdgeIndex _edge_index; |
---|
927 | |
---|
928 | typedef std::vector<std::pair<std::string, |
---|
929 | _writer_bits::MapStorageBase<Node>* > > NodeMaps; |
---|
930 | NodeMaps _node_maps; |
---|
931 | |
---|
932 | typedef std::vector<std::pair<std::string, |
---|
933 | _writer_bits::MapStorageBase<Edge>* > >EdgeMaps; |
---|
934 | EdgeMaps _edge_maps; |
---|
935 | |
---|
936 | typedef std::vector<std::pair<std::string, |
---|
937 | _writer_bits::ValueStorageBase*> > Attributes; |
---|
938 | Attributes _attributes; |
---|
939 | |
---|
940 | bool _skip_nodes; |
---|
941 | bool _skip_edges; |
---|
942 | |
---|
943 | public: |
---|
944 | |
---|
945 | /// \brief Constructor |
---|
946 | /// |
---|
947 | /// Construct a directed graph writer, which writes to the given |
---|
948 | /// output stream. |
---|
949 | GraphWriter(std::ostream& is, const Graph& graph) |
---|
950 | : _os(&is), local_os(false), _graph(graph), |
---|
951 | _skip_nodes(false), _skip_edges(false) {} |
---|
952 | |
---|
953 | /// \brief Constructor |
---|
954 | /// |
---|
955 | /// Construct a directed graph writer, which writes to the given |
---|
956 | /// output file. |
---|
957 | GraphWriter(const std::string& fn, const Graph& graph) |
---|
958 | : _os(new std::ofstream(fn.c_str())), local_os(true), _graph(graph), |
---|
959 | _skip_nodes(false), _skip_edges(false) {} |
---|
960 | |
---|
961 | /// \brief Constructor |
---|
962 | /// |
---|
963 | /// Construct a directed graph writer, which writes to the given |
---|
964 | /// output file. |
---|
965 | GraphWriter(const char* fn, const Graph& graph) |
---|
966 | : _os(new std::ofstream(fn)), local_os(true), _graph(graph), |
---|
967 | _skip_nodes(false), _skip_edges(false) {} |
---|
968 | |
---|
969 | /// \brief Destructor |
---|
970 | ~GraphWriter() { |
---|
971 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
972 | it != _node_maps.end(); ++it) { |
---|
973 | delete it->second; |
---|
974 | } |
---|
975 | |
---|
976 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
977 | it != _edge_maps.end(); ++it) { |
---|
978 | delete it->second; |
---|
979 | } |
---|
980 | |
---|
981 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
982 | it != _attributes.end(); ++it) { |
---|
983 | delete it->second; |
---|
984 | } |
---|
985 | |
---|
986 | if (local_os) { |
---|
987 | delete _os; |
---|
988 | } |
---|
989 | } |
---|
990 | |
---|
991 | private: |
---|
992 | |
---|
993 | friend GraphWriter<Graph> graphWriter<>(std::ostream& os, |
---|
994 | const Graph& graph); |
---|
995 | friend GraphWriter<Graph> graphWriter<>(const std::string& fn, |
---|
996 | const Graph& graph); |
---|
997 | friend GraphWriter<Graph> graphWriter<>(const char *fn, |
---|
998 | const Graph& graph); |
---|
999 | |
---|
1000 | GraphWriter(GraphWriter& other) |
---|
1001 | : _os(other._os), local_os(other.local_os), _graph(other._graph), |
---|
1002 | _skip_nodes(other._skip_nodes), _skip_edges(other._skip_edges) { |
---|
1003 | |
---|
1004 | other._os = 0; |
---|
1005 | other.local_os = false; |
---|
1006 | |
---|
1007 | _node_index.swap(other._node_index); |
---|
1008 | _edge_index.swap(other._edge_index); |
---|
1009 | |
---|
1010 | _node_maps.swap(other._node_maps); |
---|
1011 | _edge_maps.swap(other._edge_maps); |
---|
1012 | _attributes.swap(other._attributes); |
---|
1013 | |
---|
1014 | _nodes_caption = other._nodes_caption; |
---|
1015 | _edges_caption = other._edges_caption; |
---|
1016 | _attributes_caption = other._attributes_caption; |
---|
1017 | } |
---|
1018 | |
---|
1019 | GraphWriter& operator=(const GraphWriter&); |
---|
1020 | |
---|
1021 | public: |
---|
1022 | |
---|
1023 | /// \name Writing rules |
---|
1024 | /// @{ |
---|
1025 | |
---|
1026 | /// \brief Node map reading rule |
---|
1027 | /// |
---|
1028 | /// Add a node map reading rule to the writer. |
---|
1029 | template <typename Map> |
---|
1030 | GraphWriter& nodeMap(const std::string& caption, const Map& map) { |
---|
1031 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
1032 | _writer_bits::MapStorageBase<Node>* storage = |
---|
1033 | new _writer_bits::MapStorage<Node, Map>(map); |
---|
1034 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
1035 | return *this; |
---|
1036 | } |
---|
1037 | |
---|
1038 | /// \brief Node map writing rule |
---|
1039 | /// |
---|
1040 | /// Add a node map writing rule with specialized converter to the |
---|
1041 | /// writer. |
---|
1042 | template <typename Map, typename Converter> |
---|
1043 | GraphWriter& nodeMap(const std::string& caption, const Map& map, |
---|
1044 | const Converter& converter = Converter()) { |
---|
1045 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
1046 | _writer_bits::MapStorageBase<Node>* storage = |
---|
1047 | new _writer_bits::MapStorage<Node, Map, Converter>(map, converter); |
---|
1048 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
1049 | return *this; |
---|
1050 | } |
---|
1051 | |
---|
1052 | /// \brief Edge map writing rule |
---|
1053 | /// |
---|
1054 | /// Add an edge map writing rule to the writer. |
---|
1055 | template <typename Map> |
---|
1056 | GraphWriter& edgeMap(const std::string& caption, const Map& map) { |
---|
1057 | checkConcept<concepts::ReadMap<Edge, typename Map::Value>, Map>(); |
---|
1058 | _writer_bits::MapStorageBase<Edge>* storage = |
---|
1059 | new _writer_bits::MapStorage<Edge, Map>(map); |
---|
1060 | _edge_maps.push_back(std::make_pair(caption, storage)); |
---|
1061 | return *this; |
---|
1062 | } |
---|
1063 | |
---|
1064 | /// \brief Edge map writing rule |
---|
1065 | /// |
---|
1066 | /// Add an edge map writing rule with specialized converter to the |
---|
1067 | /// writer. |
---|
1068 | template <typename Map, typename Converter> |
---|
1069 | GraphWriter& edgeMap(const std::string& caption, const Map& map, |
---|
1070 | const Converter& converter = Converter()) { |
---|
1071 | checkConcept<concepts::ReadMap<Edge, typename Map::Value>, Map>(); |
---|
1072 | _writer_bits::MapStorageBase<Edge>* storage = |
---|
1073 | new _writer_bits::MapStorage<Edge, Map, Converter>(map, converter); |
---|
1074 | _edge_maps.push_back(std::make_pair(caption, storage)); |
---|
1075 | return *this; |
---|
1076 | } |
---|
1077 | |
---|
1078 | /// \brief Arc map writing rule |
---|
1079 | /// |
---|
1080 | /// Add an arc map writing rule to the writer. |
---|
1081 | template <typename Map> |
---|
1082 | GraphWriter& arcMap(const std::string& caption, const Map& map) { |
---|
1083 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
---|
1084 | _writer_bits::MapStorageBase<Edge>* forward_storage = |
---|
1085 | new _writer_bits::GraphArcMapStorage<Graph, true, Map>(_graph, map); |
---|
1086 | _edge_maps.push_back(std::make_pair('+' + caption, forward_storage)); |
---|
1087 | _writer_bits::MapStorageBase<Edge>* backward_storage = |
---|
1088 | new _writer_bits::GraphArcMapStorage<Graph, false, Map>(_graph, map); |
---|
1089 | _edge_maps.push_back(std::make_pair('-' + caption, backward_storage)); |
---|
1090 | return *this; |
---|
1091 | } |
---|
1092 | |
---|
1093 | /// \brief Arc map writing rule |
---|
1094 | /// |
---|
1095 | /// Add an arc map writing rule with specialized converter to the |
---|
1096 | /// writer. |
---|
1097 | template <typename Map, typename Converter> |
---|
1098 | GraphWriter& arcMap(const std::string& caption, const Map& map, |
---|
1099 | const Converter& converter = Converter()) { |
---|
1100 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
---|
1101 | _writer_bits::MapStorageBase<Edge>* forward_storage = |
---|
1102 | new _writer_bits::GraphArcMapStorage<Graph, true, Map, Converter> |
---|
1103 | (_graph, map, converter); |
---|
1104 | _edge_maps.push_back(std::make_pair('+' + caption, forward_storage)); |
---|
1105 | _writer_bits::MapStorageBase<Edge>* backward_storage = |
---|
1106 | new _writer_bits::GraphArcMapStorage<Graph, false, Map, Converter> |
---|
1107 | (_graph, map, converter); |
---|
1108 | _edge_maps.push_back(std::make_pair('-' + caption, backward_storage)); |
---|
1109 | return *this; |
---|
1110 | } |
---|
1111 | |
---|
1112 | /// \brief Attribute writing rule |
---|
1113 | /// |
---|
1114 | /// Add an attribute writing rule to the writer. |
---|
1115 | template <typename Value> |
---|
1116 | GraphWriter& attribute(const std::string& caption, const Value& value) { |
---|
1117 | _writer_bits::ValueStorageBase* storage = |
---|
1118 | new _writer_bits::ValueStorage<Value>(value); |
---|
1119 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
1120 | return *this; |
---|
1121 | } |
---|
1122 | |
---|
1123 | /// \brief Attribute writing rule |
---|
1124 | /// |
---|
1125 | /// Add an attribute writing rule with specialized converter to the |
---|
1126 | /// writer. |
---|
1127 | template <typename Value, typename Converter> |
---|
1128 | GraphWriter& attribute(const std::string& caption, const Value& value, |
---|
1129 | const Converter& converter = Converter()) { |
---|
1130 | _writer_bits::ValueStorageBase* storage = |
---|
1131 | new _writer_bits::ValueStorage<Value, Converter>(value, converter); |
---|
1132 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
1133 | return *this; |
---|
1134 | } |
---|
1135 | |
---|
1136 | /// \brief Node writing rule |
---|
1137 | /// |
---|
1138 | /// Add a node writing rule to the writer. |
---|
1139 | GraphWriter& node(const std::string& caption, const Node& node) { |
---|
1140 | typedef _writer_bits::MapLookUpConverter<Node> Converter; |
---|
1141 | Converter converter(_node_index); |
---|
1142 | _writer_bits::ValueStorageBase* storage = |
---|
1143 | new _writer_bits::ValueStorage<Node, Converter>(node, converter); |
---|
1144 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
1145 | return *this; |
---|
1146 | } |
---|
1147 | |
---|
1148 | /// \brief Edge writing rule |
---|
1149 | /// |
---|
1150 | /// Add an edge writing rule to writer. |
---|
1151 | GraphWriter& edge(const std::string& caption, const Edge& edge) { |
---|
1152 | typedef _writer_bits::MapLookUpConverter<Edge> Converter; |
---|
1153 | Converter converter(_edge_index); |
---|
1154 | _writer_bits::ValueStorageBase* storage = |
---|
1155 | new _writer_bits::ValueStorage<Edge, Converter>(edge, converter); |
---|
1156 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
1157 | return *this; |
---|
1158 | } |
---|
1159 | |
---|
1160 | /// \brief Arc writing rule |
---|
1161 | /// |
---|
1162 | /// Add an arc writing rule to writer. |
---|
1163 | GraphWriter& arc(const std::string& caption, const Arc& arc) { |
---|
1164 | typedef _writer_bits::GraphArcLookUpConverter<Graph> Converter; |
---|
1165 | Converter converter(_graph, _edge_index); |
---|
1166 | _writer_bits::ValueStorageBase* storage = |
---|
1167 | new _writer_bits::ValueStorage<Arc, Converter>(arc, converter); |
---|
1168 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
1169 | return *this; |
---|
1170 | } |
---|
1171 | |
---|
1172 | /// \name Select section by name |
---|
1173 | /// @{ |
---|
1174 | |
---|
1175 | /// \brief Set \c \@nodes section to be read |
---|
1176 | /// |
---|
1177 | /// Set \c \@nodes section to be read |
---|
1178 | GraphWriter& nodes(const std::string& caption) { |
---|
1179 | _nodes_caption = caption; |
---|
1180 | return *this; |
---|
1181 | } |
---|
1182 | |
---|
1183 | /// \brief Set \c \@edges section to be read |
---|
1184 | /// |
---|
1185 | /// Set \c \@edges section to be read |
---|
1186 | GraphWriter& edges(const std::string& caption) { |
---|
1187 | _edges_caption = caption; |
---|
1188 | return *this; |
---|
1189 | } |
---|
1190 | |
---|
1191 | /// \brief Set \c \@attributes section to be read |
---|
1192 | /// |
---|
1193 | /// Set \c \@attributes section to be read |
---|
1194 | GraphWriter& attributes(const std::string& caption) { |
---|
1195 | _attributes_caption = caption; |
---|
1196 | return *this; |
---|
1197 | } |
---|
1198 | |
---|
1199 | /// \name Skipping section |
---|
1200 | /// @{ |
---|
1201 | |
---|
1202 | /// \brief Skip writing the node set |
---|
1203 | /// |
---|
1204 | /// The \c \@nodes section will be not written to the stream. |
---|
1205 | GraphWriter& skipNodes() { |
---|
1206 | LEMON_ASSERT(!_skip_nodes, "Multiple usage of skipNodes() member"); |
---|
1207 | _skip_nodes = true; |
---|
1208 | return *this; |
---|
1209 | } |
---|
1210 | |
---|
1211 | /// \brief Skip writing edge set |
---|
1212 | /// |
---|
1213 | /// The \c \@edges section will be not written to the stream. |
---|
1214 | GraphWriter& skipEdges() { |
---|
1215 | LEMON_ASSERT(!_skip_edges, "Multiple usage of skipEdges() member"); |
---|
1216 | _skip_edges = true; |
---|
1217 | return *this; |
---|
1218 | } |
---|
1219 | |
---|
1220 | /// @} |
---|
1221 | |
---|
1222 | private: |
---|
1223 | |
---|
1224 | void writeNodes() { |
---|
1225 | _writer_bits::MapStorageBase<Node>* label = 0; |
---|
1226 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
1227 | it != _node_maps.end(); ++it) { |
---|
1228 | if (it->first == "label") { |
---|
1229 | label = it->second; |
---|
1230 | break; |
---|
1231 | } |
---|
1232 | } |
---|
1233 | |
---|
1234 | *_os << "@nodes"; |
---|
1235 | if (!_nodes_caption.empty()) { |
---|
1236 | _writer_bits::writeToken(*_os << ' ', _nodes_caption); |
---|
1237 | } |
---|
1238 | *_os << std::endl; |
---|
1239 | |
---|
1240 | if (label == 0) { |
---|
1241 | *_os << "label" << '\t'; |
---|
1242 | } |
---|
1243 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
1244 | it != _node_maps.end(); ++it) { |
---|
1245 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
1246 | } |
---|
1247 | *_os << std::endl; |
---|
1248 | |
---|
1249 | std::vector<Node> nodes; |
---|
1250 | for (NodeIt n(_graph); n != INVALID; ++n) { |
---|
1251 | nodes.push_back(n); |
---|
1252 | } |
---|
1253 | |
---|
1254 | if (label == 0) { |
---|
1255 | IdMap<Graph, Node> id_map(_graph); |
---|
1256 | _writer_bits::MapLess<IdMap<Graph, Node> > id_less(id_map); |
---|
1257 | std::sort(nodes.begin(), nodes.end(), id_less); |
---|
1258 | } else { |
---|
1259 | label->sort(nodes); |
---|
1260 | } |
---|
1261 | |
---|
1262 | for (int i = 0; i < static_cast<int>(nodes.size()); ++i) { |
---|
1263 | Node n = nodes[i]; |
---|
1264 | if (label == 0) { |
---|
1265 | std::ostringstream os; |
---|
1266 | os << _graph.id(n); |
---|
1267 | _writer_bits::writeToken(*_os, os.str()); |
---|
1268 | *_os << '\t'; |
---|
1269 | _node_index.insert(std::make_pair(n, os.str())); |
---|
1270 | } |
---|
1271 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
1272 | it != _node_maps.end(); ++it) { |
---|
1273 | std::string value = it->second->get(n); |
---|
1274 | _writer_bits::writeToken(*_os, value); |
---|
1275 | if (it->first == "label") { |
---|
1276 | _node_index.insert(std::make_pair(n, value)); |
---|
1277 | } |
---|
1278 | *_os << '\t'; |
---|
1279 | } |
---|
1280 | *_os << std::endl; |
---|
1281 | } |
---|
1282 | } |
---|
1283 | |
---|
1284 | void createNodeIndex() { |
---|
1285 | _writer_bits::MapStorageBase<Node>* label = 0; |
---|
1286 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
1287 | it != _node_maps.end(); ++it) { |
---|
1288 | if (it->first == "label") { |
---|
1289 | label = it->second; |
---|
1290 | break; |
---|
1291 | } |
---|
1292 | } |
---|
1293 | |
---|
1294 | if (label == 0) { |
---|
1295 | for (NodeIt n(_graph); n != INVALID; ++n) { |
---|
1296 | std::ostringstream os; |
---|
1297 | os << _graph.id(n); |
---|
1298 | _node_index.insert(std::make_pair(n, os.str())); |
---|
1299 | } |
---|
1300 | } else { |
---|
1301 | for (NodeIt n(_graph); n != INVALID; ++n) { |
---|
1302 | std::string value = label->get(n); |
---|
1303 | _node_index.insert(std::make_pair(n, value)); |
---|
1304 | } |
---|
1305 | } |
---|
1306 | } |
---|
1307 | |
---|
1308 | void writeEdges() { |
---|
1309 | _writer_bits::MapStorageBase<Edge>* label = 0; |
---|
1310 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
1311 | it != _edge_maps.end(); ++it) { |
---|
1312 | if (it->first == "label") { |
---|
1313 | label = it->second; |
---|
1314 | break; |
---|
1315 | } |
---|
1316 | } |
---|
1317 | |
---|
1318 | *_os << "@edges"; |
---|
1319 | if (!_edges_caption.empty()) { |
---|
1320 | _writer_bits::writeToken(*_os << ' ', _edges_caption); |
---|
1321 | } |
---|
1322 | *_os << std::endl; |
---|
1323 | |
---|
1324 | *_os << '\t' << '\t'; |
---|
1325 | if (label == 0) { |
---|
1326 | *_os << "label" << '\t'; |
---|
1327 | } |
---|
1328 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
1329 | it != _edge_maps.end(); ++it) { |
---|
1330 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
1331 | } |
---|
1332 | *_os << std::endl; |
---|
1333 | |
---|
1334 | std::vector<Edge> edges; |
---|
1335 | for (EdgeIt n(_graph); n != INVALID; ++n) { |
---|
1336 | edges.push_back(n); |
---|
1337 | } |
---|
1338 | |
---|
1339 | if (label == 0) { |
---|
1340 | IdMap<Graph, Edge> id_map(_graph); |
---|
1341 | _writer_bits::MapLess<IdMap<Graph, Edge> > id_less(id_map); |
---|
1342 | std::sort(edges.begin(), edges.end(), id_less); |
---|
1343 | } else { |
---|
1344 | label->sort(edges); |
---|
1345 | } |
---|
1346 | |
---|
1347 | for (int i = 0; i < static_cast<int>(edges.size()); ++i) { |
---|
1348 | Edge e = edges[i]; |
---|
1349 | _writer_bits::writeToken(*_os, _node_index. |
---|
1350 | find(_graph.u(e))->second); |
---|
1351 | *_os << '\t'; |
---|
1352 | _writer_bits::writeToken(*_os, _node_index. |
---|
1353 | find(_graph.v(e))->second); |
---|
1354 | *_os << '\t'; |
---|
1355 | if (label == 0) { |
---|
1356 | std::ostringstream os; |
---|
1357 | os << _graph.id(e); |
---|
1358 | _writer_bits::writeToken(*_os, os.str()); |
---|
1359 | *_os << '\t'; |
---|
1360 | _edge_index.insert(std::make_pair(e, os.str())); |
---|
1361 | } |
---|
1362 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
1363 | it != _edge_maps.end(); ++it) { |
---|
1364 | std::string value = it->second->get(e); |
---|
1365 | _writer_bits::writeToken(*_os, value); |
---|
1366 | if (it->first == "label") { |
---|
1367 | _edge_index.insert(std::make_pair(e, value)); |
---|
1368 | } |
---|
1369 | *_os << '\t'; |
---|
1370 | } |
---|
1371 | *_os << std::endl; |
---|
1372 | } |
---|
1373 | } |
---|
1374 | |
---|
1375 | void createEdgeIndex() { |
---|
1376 | _writer_bits::MapStorageBase<Edge>* label = 0; |
---|
1377 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
1378 | it != _edge_maps.end(); ++it) { |
---|
1379 | if (it->first == "label") { |
---|
1380 | label = it->second; |
---|
1381 | break; |
---|
1382 | } |
---|
1383 | } |
---|
1384 | |
---|
1385 | if (label == 0) { |
---|
1386 | for (EdgeIt e(_graph); e != INVALID; ++e) { |
---|
1387 | std::ostringstream os; |
---|
1388 | os << _graph.id(e); |
---|
1389 | _edge_index.insert(std::make_pair(e, os.str())); |
---|
1390 | } |
---|
1391 | } else { |
---|
1392 | for (EdgeIt e(_graph); e != INVALID; ++e) { |
---|
1393 | std::string value = label->get(e); |
---|
1394 | _edge_index.insert(std::make_pair(e, value)); |
---|
1395 | } |
---|
1396 | } |
---|
1397 | } |
---|
1398 | |
---|
1399 | void writeAttributes() { |
---|
1400 | if (_attributes.empty()) return; |
---|
1401 | *_os << "@attributes"; |
---|
1402 | if (!_attributes_caption.empty()) { |
---|
1403 | _writer_bits::writeToken(*_os << ' ', _attributes_caption); |
---|
1404 | } |
---|
1405 | *_os << std::endl; |
---|
1406 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
1407 | it != _attributes.end(); ++it) { |
---|
1408 | _writer_bits::writeToken(*_os, it->first) << ' '; |
---|
1409 | _writer_bits::writeToken(*_os, it->second->get()); |
---|
1410 | *_os << std::endl; |
---|
1411 | } |
---|
1412 | } |
---|
1413 | |
---|
1414 | public: |
---|
1415 | |
---|
1416 | /// \name Execution of the writer |
---|
1417 | /// @{ |
---|
1418 | |
---|
1419 | /// \brief Start the batch processing |
---|
1420 | /// |
---|
1421 | /// This function starts the batch processing |
---|
1422 | void run() { |
---|
1423 | if (!_skip_nodes) { |
---|
1424 | writeNodes(); |
---|
1425 | } else { |
---|
1426 | createNodeIndex(); |
---|
1427 | } |
---|
1428 | if (!_skip_edges) { |
---|
1429 | writeEdges(); |
---|
1430 | } else { |
---|
1431 | createEdgeIndex(); |
---|
1432 | } |
---|
1433 | writeAttributes(); |
---|
1434 | } |
---|
1435 | |
---|
1436 | /// \brief Gives back the stream of the writer |
---|
1437 | /// |
---|
1438 | /// Gives back the stream of the writer |
---|
1439 | std::ostream& ostream() { |
---|
1440 | return *_os; |
---|
1441 | } |
---|
1442 | |
---|
1443 | /// @} |
---|
1444 | }; |
---|
1445 | |
---|
1446 | /// \relates GraphWriter |
---|
1447 | template <typename Graph> |
---|
1448 | GraphWriter<Graph> graphWriter(std::ostream& os, const Graph& graph) { |
---|
1449 | GraphWriter<Graph> tmp(os, graph); |
---|
1450 | return tmp; |
---|
1451 | } |
---|
1452 | |
---|
1453 | /// \relates GraphWriter |
---|
1454 | template <typename Graph> |
---|
1455 | GraphWriter<Graph> graphWriter(const std::string& fn, const Graph& graph) { |
---|
1456 | GraphWriter<Graph> tmp(fn, graph); |
---|
1457 | return tmp; |
---|
1458 | } |
---|
1459 | |
---|
1460 | /// \relates GraphWriter |
---|
1461 | template <typename Graph> |
---|
1462 | GraphWriter<Graph> graphWriter(const char* fn, const Graph& graph) { |
---|
1463 | GraphWriter<Graph> tmp(fn, graph); |
---|
1464 | return tmp; |
---|
1465 | } |
---|
1466 | } |
---|
1467 | |
---|
1468 | #endif |
---|