[400] | 1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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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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[463] | 5 | * Copyright (C) 2003-2009 |
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[400] | 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 Digraph Format |
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| 24 | /// (LGF). |
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| 25 | /// |
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| 26 | /// See |
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[631] | 27 | /// \code |
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| 28 | /// dimacs-to-lgf --help |
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| 29 | /// \endcode |
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| 30 | /// for more info on the usage. |
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[400] | 31 | |
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| 32 | #include <iostream> |
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| 33 | #include <fstream> |
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| 34 | #include <cstring> |
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| 35 | |
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| 36 | #include <lemon/smart_graph.h> |
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| 37 | #include <lemon/dimacs.h> |
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| 38 | #include <lemon/lgf_writer.h> |
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| 39 | |
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| 40 | #include <lemon/arg_parser.h> |
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[402] | 41 | #include <lemon/error.h> |
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[400] | 42 | |
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| 43 | using namespace std; |
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| 44 | using namespace lemon; |
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| 45 | |
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| 46 | |
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| 47 | int main(int argc, const char *argv[]) { |
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| 48 | typedef SmartDigraph Digraph; |
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| 49 | |
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| 50 | typedef Digraph::Arc Arc; |
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| 51 | typedef Digraph::Node Node; |
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| 52 | typedef Digraph::ArcIt ArcIt; |
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| 53 | typedef Digraph::NodeIt NodeIt; |
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| 54 | typedef Digraph::ArcMap<double> DoubleArcMap; |
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| 55 | typedef Digraph::NodeMap<double> DoubleNodeMap; |
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| 56 | |
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| 57 | std::string inputName; |
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| 58 | std::string outputName; |
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| 59 | |
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| 60 | ArgParser ap(argc, argv); |
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[402] | 61 | ap.other("[INFILE [OUTFILE]]", |
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| 62 | "If either the INFILE or OUTFILE file is missing the standard\n" |
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| 63 | " input/output will be used instead.") |
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[400] | 64 | .run(); |
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| 65 | |
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| 66 | ifstream input; |
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[402] | 67 | ofstream output; |
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| 68 | |
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| 69 | switch(ap.files().size()) |
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| 70 | { |
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| 71 | case 2: |
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| 72 | output.open(ap.files()[1].c_str()); |
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| 73 | if (!output) { |
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| 74 | throw IoError("Cannot open the file for writing", ap.files()[1]); |
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| 75 | } |
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| 76 | case 1: |
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| 77 | input.open(ap.files()[0].c_str()); |
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| 78 | if (!input) { |
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| 79 | throw IoError("File cannot be found", ap.files()[0]); |
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| 80 | } |
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| 81 | case 0: |
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| 82 | break; |
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| 83 | default: |
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| 84 | cerr << ap.commandName() << ": too many arguments\n"; |
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| 85 | return 1; |
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| 86 | } |
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| 87 | istream& is = (ap.files().size()<1 ? cin : input); |
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| 88 | ostream& os = (ap.files().size()<2 ? cout : output); |
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| 89 | |
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| 90 | DimacsDescriptor desc = dimacsType(is); |
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| 91 | switch(desc.type) |
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| 92 | { |
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| 93 | case DimacsDescriptor::MIN: |
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| 94 | { |
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| 95 | Digraph digraph; |
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| 96 | DoubleArcMap lower(digraph), capacity(digraph), cost(digraph); |
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| 97 | DoubleNodeMap supply(digraph); |
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[608] | 98 | readDimacsMin(is, digraph, lower, capacity, cost, supply, 0, desc); |
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[402] | 99 | DigraphWriter<Digraph>(digraph, os). |
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| 100 | nodeMap("supply", supply). |
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| 101 | arcMap("lower", lower). |
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| 102 | arcMap("capacity", capacity). |
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| 103 | arcMap("cost", cost). |
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| 104 | attribute("problem","min"). |
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| 105 | run(); |
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| 106 | } |
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| 107 | break; |
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| 108 | case DimacsDescriptor::MAX: |
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| 109 | { |
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| 110 | Digraph digraph; |
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| 111 | Node s, t; |
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| 112 | DoubleArcMap capacity(digraph); |
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[608] | 113 | readDimacsMax(is, digraph, capacity, s, t, 0, desc); |
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[402] | 114 | DigraphWriter<Digraph>(digraph, os). |
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| 115 | arcMap("capacity", capacity). |
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| 116 | node("source", s). |
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| 117 | node("target", t). |
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| 118 | attribute("problem","max"). |
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| 119 | run(); |
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| 120 | } |
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| 121 | break; |
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| 122 | case DimacsDescriptor::SP: |
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| 123 | { |
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| 124 | Digraph digraph; |
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| 125 | Node s; |
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| 126 | DoubleArcMap capacity(digraph); |
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| 127 | readDimacsSp(is, digraph, capacity, s, desc); |
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| 128 | DigraphWriter<Digraph>(digraph, os). |
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| 129 | arcMap("capacity", capacity). |
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| 130 | node("source", s). |
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| 131 | attribute("problem","sp"). |
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| 132 | run(); |
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| 133 | } |
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| 134 | break; |
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| 135 | case DimacsDescriptor::MAT: |
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| 136 | { |
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| 137 | Digraph digraph; |
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| 138 | readDimacsMat(is, digraph,desc); |
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| 139 | DigraphWriter<Digraph>(digraph, os). |
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| 140 | attribute("problem","mat"). |
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| 141 | run(); |
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| 142 | } |
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| 143 | break; |
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| 144 | default: |
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| 145 | break; |
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[400] | 146 | } |
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| 147 | return 0; |
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| 148 | } |
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