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 tools |
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20 | ///\file |
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21 | ///\brief DIMACS to LGF converter. |
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22 | /// |
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23 | /// This program converts various DIMACS formats to the LEMON Graph Format |
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24 | /// (LGF). |
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25 | /// |
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26 | ///\verbatim |
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27 | ///Usage: |
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28 | /// ./tools/dim_to_lgf |
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29 | /// --mincostflow|-mcf|--maxflow|-mf|--shortestpath|-sp|--capacitated|-cap|--plain|-pl |
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30 | /// [--help|-h|-help] [--input|-i str] [--output|-o str] [--version|-v] |
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31 | ///Where: |
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32 | /// --capacitated|-cap |
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33 | /// set the type of the graph to "capacitated" graph |
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34 | /// --help|-h|-help |
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35 | /// Print a short help message |
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36 | /// --input|-i str |
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37 | /// use FILE as input instead of standard input |
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38 | /// --maxflow|-mf |
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39 | /// set the type of the graph to "maxflow" graph |
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40 | /// --mincostflow|-mcf |
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41 | /// set the type of the graph to "mincostflow" graph |
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42 | /// --output|-o str |
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43 | /// use FILE as output instead of standard output |
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44 | /// --plain|-pl |
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45 | /// set the type of the graph to "plain" graph |
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46 | /// --shortestpath|-sp |
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47 | /// set the type of the graph to "shortestpath" graph |
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48 | /// --version|-v |
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49 | /// show version information |
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50 | ///\endverbatim |
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51 | /// |
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52 | |
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53 | #include <iostream> |
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54 | #include <fstream> |
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55 | #include <cstring> |
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56 | |
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57 | #include <lemon/smart_graph.h> |
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58 | #include <lemon/dimacs.h> |
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59 | #include <lemon/graph_writer.h> |
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60 | |
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61 | #include <lemon/arg_parser.h> |
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62 | |
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63 | using namespace std; |
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64 | using namespace lemon; |
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65 | |
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66 | |
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67 | int main(int argc, const char *argv[]) { |
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68 | typedef SmartGraph Graph; |
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69 | |
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70 | typedef Graph::Edge Edge; |
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71 | typedef Graph::Node Node; |
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72 | typedef Graph::EdgeIt EdgeIt; |
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73 | typedef Graph::NodeIt NodeIt; |
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74 | typedef Graph::EdgeMap<double> DoubleEdgeMap; |
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75 | typedef Graph::NodeMap<double> DoubleNodeMap; |
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76 | |
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77 | std::string inputName; |
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78 | std::string outputName; |
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79 | std::string typeName; |
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80 | |
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81 | bool mincostflow; |
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82 | bool maxflow; |
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83 | bool shortestpath; |
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84 | bool capacitated; |
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85 | bool plain; |
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86 | |
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87 | bool version; |
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88 | |
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89 | ArgParser ap(argc, argv); |
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90 | ap.refOption("-input", |
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91 | "use FILE as input instead of standard input", |
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92 | inputName).synonym("i", "-input") |
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93 | .refOption("-output", |
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94 | "use FILE as output instead of standard output", |
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95 | outputName).synonym("o", "-output") |
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96 | .refOption("-mincostflow", |
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97 | "set the type of the graph to \"mincostflow\" graph", |
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98 | mincostflow) |
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99 | .optionGroup("type", "-mincostflow").synonym("mcf", "-mincostflow") |
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100 | .refOption("-maxflow", |
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101 | "set the type of the graph to \"maxflow\" graph", |
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102 | maxflow) |
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103 | .optionGroup("type", "-maxflow").synonym("mf", "-maxflow") |
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104 | .refOption("-shortestpath", |
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105 | "set the type of the graph to \"shortestpath\" graph", |
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106 | shortestpath) |
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107 | .optionGroup("type", "-shortestpath").synonym("sp", "-shortestpath") |
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108 | .refOption("-capacitated", |
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109 | "set the type of the graph to \"capacitated\" graph", |
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110 | capacitated) |
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111 | .optionGroup("type", "-capacitated").synonym("cap", "-capacitated") |
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112 | .refOption("-plain", |
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113 | "set the type of the graph to \"plain\" graph", |
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114 | plain) |
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115 | .optionGroup("type", "-plain").synonym("pl", "-plain") |
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116 | .onlyOneGroup("type") |
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117 | .mandatoryGroup("type") |
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118 | .refOption("-version", "show version information", version) |
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119 | .synonym("v", "-version") |
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120 | .run(); |
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121 | |
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122 | ifstream input; |
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123 | if (!inputName.empty()) { |
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124 | input.open(inputName.c_str()); |
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125 | if (!input) { |
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126 | cerr << "File open error" << endl; |
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127 | return -1; |
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128 | } |
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129 | } |
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130 | istream& is = (inputName.empty() ? cin : input); |
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131 | |
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132 | ofstream output; |
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133 | if (!outputName.empty()) { |
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134 | output.open(outputName.c_str()); |
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135 | if (!output) { |
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136 | cerr << "File open error" << endl; |
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137 | return -1; |
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138 | } |
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139 | } |
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140 | ostream& os = (outputName.empty() ? cout : output); |
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141 | |
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142 | if (mincostflow) { |
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143 | Graph graph; |
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144 | DoubleEdgeMap lower(graph), capacity(graph), cost(graph); |
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145 | DoubleNodeMap supply(graph); |
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146 | readDimacs(is, graph, lower, capacity, cost, supply); |
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147 | GraphWriter<Graph>(os, graph). |
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148 | writeNodeMap("supply", supply). |
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149 | writeEdgeMap("lower", lower). |
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150 | writeEdgeMap("capacity", capacity). |
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151 | writeEdgeMap("cost", cost). |
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152 | run(); |
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153 | } else if (maxflow) { |
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154 | Graph graph; |
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155 | Node s, t; |
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156 | DoubleEdgeMap capacity(graph); |
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157 | readDimacs(is, graph, capacity, s, t); |
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158 | GraphWriter<Graph>(os, graph). |
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159 | writeEdgeMap("capacity", capacity). |
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160 | writeNode("source", s). |
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161 | writeNode("target", t). |
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162 | run(); |
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163 | } else if (shortestpath) { |
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164 | Graph graph; |
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165 | Node s; |
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166 | DoubleEdgeMap capacity(graph); |
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167 | readDimacs(is, graph, capacity, s); |
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168 | GraphWriter<Graph>(os, graph). |
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169 | writeEdgeMap("capacity", capacity). |
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170 | writeNode("source", s). |
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171 | run(); |
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172 | } else if (capacitated) { |
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173 | Graph graph; |
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174 | DoubleEdgeMap capacity(graph); |
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175 | readDimacs(is, graph, capacity); |
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176 | GraphWriter<Graph>(os, graph). |
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177 | writeEdgeMap("capacity", capacity). |
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178 | run(); |
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179 | } else if (plain) { |
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180 | Graph graph; |
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181 | readDimacs(is, graph); |
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182 | GraphWriter<Graph>(os, graph).run(); |
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183 | } else { |
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184 | cerr << "Invalid type error" << endl; |
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185 | return -1; |
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186 | } |
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187 | return 0; |
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188 | } |
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