alpar@2404: /* -*- C++ -*-
alpar@2404:  *
alpar@2404:  * This file is a part of LEMON, a generic C++ optimization library
alpar@2404:  *
alpar@2404:  * Copyright (C) 2003-2007
alpar@2404:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@2404:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@2404:  *
alpar@2404:  * Permission to use, modify and distribute this software is granted
alpar@2404:  * provided that this copyright notice appears in all copies. For
alpar@2404:  * precise terms see the accompanying LICENSE file.
alpar@2404:  *
alpar@2404:  * This software is provided "AS IS" with no warranty of any kind,
alpar@2404:  * express or implied, and with no claim as to its suitability for any
alpar@2404:  * purpose.
alpar@2404:  *
alpar@2404:  */
alpar@2404: 
alpar@2404: ///\ingroup demos
alpar@2404: ///\file
deba@2410: ///\brief DIMACS to LGF converter.
alpar@2404: ///
alpar@2404: /// This program converts various DIMACS formats to the LEMON Graph Format
alpar@2404: /// (LGF).
alpar@2404: ///
alpar@2404: /// \include dim_to_lgf.cc
alpar@2404: 
alpar@2404: #include <iostream>
alpar@2404: #include <fstream>
alpar@2404: #include <cstring>
alpar@2404: 
alpar@2404: #include <lemon/smart_graph.h>
alpar@2404: #include <lemon/dimacs.h>
alpar@2404: #include <lemon/graph_writer.h>
alpar@2404: 
deba@2410: #include <lemon/arg_parser.h>
deba@2410: 
alpar@2404: using namespace std;
alpar@2404: using namespace lemon;
alpar@2404: 
alpar@2404: 
alpar@2404: int main(int argc, const char *argv[]) {
alpar@2404:   typedef SmartGraph Graph;
alpar@2404: 
alpar@2404:   typedef Graph::Edge Edge;
alpar@2404:   typedef Graph::Node Node;
alpar@2404:   typedef Graph::EdgeIt EdgeIt;
alpar@2404:   typedef Graph::NodeIt NodeIt;
deba@2413:   typedef Graph::EdgeMap<double> DoubleEdgeMap;
deba@2413:   typedef Graph::NodeMap<double> DoubleNodeMap;
alpar@2404: 
alpar@2404:   std::string inputName;
alpar@2404:   std::string outputName;
alpar@2404:   std::string typeName;
alpar@2404: 
deba@2410:   bool mincostflow;
deba@2410:   bool maxflow;
deba@2410:   bool shortestpath;
deba@2410:   bool capacitated;
deba@2410:   bool plain;
alpar@2404: 
deba@2410:   bool version;
alpar@2404: 
deba@2410:   ArgParser ap(argc, argv);
deba@2410:   ap.refOption("-input", 
deba@2410:                "use FILE as input instead of standard input", 
deba@2410:                inputName).synonym("i", "-input")
deba@2410:     .refOption("-output", 
deba@2410:                "use FILE as output instead of standard output", 
deba@2410:                outputName).synonym("o", "-output")
deba@2410:     .refOption("-mincostflow", 
deba@2410:                "set the type of the graph to \"mincostflow\" graph", 
deba@2410:                mincostflow)
deba@2410:     .optionGroup("type", "-mincostflow").synonym("mcf", "-mincostflow")
deba@2410:     .refOption("-maxflow", 
deba@2410:                "set the type of the graph to \"maxflow\" graph", 
deba@2410:                maxflow)
deba@2410:     .optionGroup("type", "-maxflow").synonym("mf", "-maxflow")
deba@2410:     .refOption("-shortestpath", 
deba@2410:                "set the type of the graph to \"shortestpath\" graph", 
deba@2410:                shortestpath)
deba@2410:     .optionGroup("type", "-shortestpath").synonym("sp", "-shortestpath")
deba@2410:     .refOption("-capacitated", 
deba@2410:                "set the type of the graph to \"capacitated\" graph", 
deba@2410:                capacitated)
deba@2410:     .optionGroup("type", "-capacitated").synonym("cap", "-capacitated")
deba@2410:     .refOption("-plain", 
deba@2410:                "set the type of the graph to \"plain\" graph", 
deba@2410:                plain)
deba@2410:     .optionGroup("type", "-plain").synonym("pl", "-plain")
deba@2410:     .onlyOneGroup("type")
deba@2410:     .mandatoryGroup("type")
deba@2410:     .refOption("-version", "show version information", version)
deba@2410:     .synonym("v", "-version")
deba@2410:     .run();
alpar@2404: 
alpar@2404:   ifstream input;
alpar@2404:   if (!inputName.empty()) {
alpar@2404:     input.open(inputName.c_str());
alpar@2404:     if (!input) {
alpar@2404:       cerr << "File open error" << endl;
alpar@2404:       return -1;
alpar@2404:     }
alpar@2404:   }
alpar@2404:   istream& is = (inputName.empty() ? cin : input);
alpar@2404: 
alpar@2404:   ofstream output;
alpar@2404:   if (!outputName.empty()) {
alpar@2404:     output.open(outputName.c_str());
alpar@2404:     if (!output) {
alpar@2404:       cerr << "File open error" << endl;
alpar@2404:       return -1;
alpar@2404:     }
alpar@2404:   }
alpar@2404:   ostream& os = (outputName.empty() ? cout : output);
alpar@2404: 
deba@2410:   if (mincostflow) {
alpar@2404:     Graph graph;
deba@2417:     DoubleEdgeMap lower(graph), capacity(graph), cost(graph);
deba@2413:     DoubleNodeMap supply(graph);
deba@2417:     readDimacs(is, graph, lower, capacity, cost, supply);
alpar@2404:     GraphWriter<Graph>(os, graph).
deba@2413:       writeNodeMap("supply", supply).
deba@2413:       writeEdgeMap("lower", lower).
alpar@2404:       writeEdgeMap("capacity", capacity).
alpar@2404:       writeEdgeMap("cost", cost).
alpar@2404:       run();
deba@2410:   } else if (maxflow) {
alpar@2404:     Graph graph;
alpar@2404:     Node s, t;
deba@2413:     DoubleEdgeMap capacity(graph);
alpar@2404:     readDimacs(is, graph, capacity, s, t);
alpar@2404:     GraphWriter<Graph>(os, graph).
alpar@2404:       writeEdgeMap("capacity", capacity).
alpar@2404:       writeNode("source", s).
alpar@2404:       writeNode("target", t).
alpar@2404:       run();
deba@2410:   } else if (shortestpath) {
alpar@2404:     Graph graph;
alpar@2404:     Node s;
deba@2413:     DoubleEdgeMap capacity(graph);
alpar@2404:     readDimacs(is, graph, capacity, s);
alpar@2404:     GraphWriter<Graph>(os, graph).
alpar@2404:       writeEdgeMap("capacity", capacity).
alpar@2404:       writeNode("source", s).
alpar@2404:       run();
deba@2410:   } else if (capacitated) {
alpar@2404:     Graph graph;
deba@2413:     DoubleEdgeMap capacity(graph);
alpar@2404:     readDimacs(is, graph, capacity);
alpar@2404:     GraphWriter<Graph>(os, graph).
alpar@2404:       writeEdgeMap("capacity", capacity).
alpar@2404:       run();
deba@2410:   } else if (plain) {
alpar@2404:     Graph graph;
alpar@2404:     readDimacs(is, graph);
alpar@2404:     GraphWriter<Graph>(os, graph).run();
alpar@2404:   } else {
alpar@2404:     cerr << "Invalid type error" << endl;
alpar@2404:     return -1;
alpar@2404:   }
alpar@2404:   return 0;
alpar@2404: }