[127] | 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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[165] | 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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[127] | 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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[165] | 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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[127] | 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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[165] | 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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[127] | 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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[163] | 269 | std::ios::fmtflags flags = os.flags(); |
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[127] | 270 | os << '\\' << std::oct << static_cast<int>(c); |
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[163] | 271 | os.flags(flags); |
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[127] | 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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[156] | 280 | if (str.empty() || str[0] == '@') return true; |
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[127] | 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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[156] | 308 | /// \ingroup lemon_io |
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| 309 | /// |
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| 310 | /// \brief LGF writer for directed graphs |
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| 311 | /// |
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| 312 | /// This utility writes an \ref lgf-format "LGF" file. |
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| 313 | /// |
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| 314 | /// The writing method does a batch processing. The user creates a |
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| 315 | /// writer object, then various writing rules can be added to the |
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| 316 | /// writer, and eventually the writing is executed with the \c run() |
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| 317 | /// member function. A map writing rule can be added to the writer |
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| 318 | /// with the \c nodeMap() or \c arcMap() members. An optional |
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[163] | 319 | /// converter parameter can also be added as a standard functor |
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| 320 | /// converting from the value type of the map to std::string. If it |
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| 321 | /// is set, it will determine how the map's value type is written to |
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| 322 | /// the output stream. If the functor is not set, then a default |
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| 323 | /// conversion will be used. The \c attribute(), \c node() and \c |
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| 324 | /// arc() functions are used to add attribute writing rules. |
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[156] | 325 | /// |
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| 326 | ///\code |
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| 327 | /// DigraphWriter<Digraph>(std::cout, digraph). |
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| 328 | /// nodeMap("coordinates", coord_map). |
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| 329 | /// nodeMap("size", size). |
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| 330 | /// nodeMap("title", title). |
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| 331 | /// arcMap("capacity", cap_map). |
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| 332 | /// node("source", src). |
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| 333 | /// node("target", trg). |
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| 334 | /// attribute("caption", caption). |
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| 335 | /// run(); |
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| 336 | ///\endcode |
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| 337 | /// |
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| 338 | /// |
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| 339 | /// By default, the writer does not write additional captions to the |
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| 340 | /// sections, but they can be give as an optional parameter of |
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| 341 | /// the \c nodes(), \c arcs() or \c |
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| 342 | /// attributes() functions. |
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| 343 | /// |
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| 344 | /// The \c skipNodes() and \c skipArcs() functions forbid the |
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[163] | 345 | /// writing of the sections. If two arc sections should be written |
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| 346 | /// to the output, it can be done in two passes, the first pass |
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| 347 | /// writes the node section and the first arc section, then the |
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| 348 | /// second pass skips the node section and writes just the arc |
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| 349 | /// section to the stream. The output stream can be retrieved with |
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| 350 | /// the \c ostream() function, hence the second pass can append its |
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| 351 | /// output to the output of the first pass. |
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[127] | 352 | template <typename _Digraph> |
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| 353 | class DigraphWriter { |
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| 354 | public: |
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| 355 | |
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| 356 | typedef _Digraph Digraph; |
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[148] | 357 | TEMPLATE_DIGRAPH_TYPEDEFS(Digraph); |
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[127] | 358 | |
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| 359 | private: |
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| 360 | |
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| 361 | |
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| 362 | std::ostream* _os; |
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| 363 | bool local_os; |
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| 364 | |
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| 365 | Digraph& _digraph; |
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| 366 | |
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| 367 | std::string _nodes_caption; |
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| 368 | std::string _arcs_caption; |
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| 369 | std::string _attributes_caption; |
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| 370 | |
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| 371 | typedef std::map<Node, std::string> NodeIndex; |
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| 372 | NodeIndex _node_index; |
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| 373 | typedef std::map<Arc, std::string> ArcIndex; |
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| 374 | ArcIndex _arc_index; |
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| 375 | |
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| 376 | typedef std::vector<std::pair<std::string, |
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| 377 | _writer_bits::MapStorageBase<Node>* > > NodeMaps; |
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| 378 | NodeMaps _node_maps; |
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| 379 | |
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| 380 | typedef std::vector<std::pair<std::string, |
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| 381 | _writer_bits::MapStorageBase<Arc>* > >ArcMaps; |
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| 382 | ArcMaps _arc_maps; |
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| 383 | |
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| 384 | typedef std::vector<std::pair<std::string, |
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| 385 | _writer_bits::ValueStorageBase*> > Attributes; |
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| 386 | Attributes _attributes; |
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| 387 | |
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| 388 | bool _skip_nodes; |
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| 389 | bool _skip_arcs; |
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| 390 | |
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| 391 | public: |
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| 392 | |
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[156] | 393 | /// \brief Constructor |
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| 394 | /// |
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| 395 | /// Construct a directed graph writer, which writes to the given |
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| 396 | /// output stream. |
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[127] | 397 | DigraphWriter(std::ostream& is, Digraph& digraph) |
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| 398 | : _os(&is), local_os(false), _digraph(digraph), |
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| 399 | _skip_nodes(false), _skip_arcs(false) {} |
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| 400 | |
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[156] | 401 | /// \brief Constructor |
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| 402 | /// |
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| 403 | /// Construct a directed graph writer, which writes to the given |
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| 404 | /// output file. |
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[127] | 405 | DigraphWriter(const std::string& fn, Digraph& digraph) |
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| 406 | : _os(new std::ofstream(fn.c_str())), local_os(true), _digraph(digraph), |
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| 407 | _skip_nodes(false), _skip_arcs(false) {} |
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| 408 | |
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[156] | 409 | /// \brief Constructor |
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| 410 | /// |
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| 411 | /// Construct a directed graph writer, which writes to the given |
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| 412 | /// output file. |
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[127] | 413 | DigraphWriter(const char* fn, Digraph& digraph) |
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| 414 | : _os(new std::ofstream(fn)), local_os(true), _digraph(digraph), |
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| 415 | _skip_nodes(false), _skip_arcs(false) {} |
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| 416 | |
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[156] | 417 | /// \brief Copy constructor |
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| 418 | /// |
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| 419 | /// The copy constructor transfers all data from the other writer, |
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| 420 | /// therefore the copied writer will not be usable more. |
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[127] | 421 | DigraphWriter(DigraphWriter& other) |
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| 422 | : _os(other._os), local_os(other.local_os), _digraph(other._digraph), |
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| 423 | _skip_nodes(other._skip_nodes), _skip_arcs(other._skip_arcs) { |
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| 424 | |
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[163] | 425 | other._os = 0; |
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[127] | 426 | other.local_os = false; |
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| 427 | |
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| 428 | _node_index.swap(other._node_index); |
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| 429 | _arc_index.swap(other._arc_index); |
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| 430 | |
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| 431 | _node_maps.swap(other._node_maps); |
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| 432 | _arc_maps.swap(other._arc_maps); |
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| 433 | _attributes.swap(other._attributes); |
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| 434 | |
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| 435 | _nodes_caption = other._nodes_caption; |
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| 436 | _arcs_caption = other._arcs_caption; |
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| 437 | _attributes_caption = other._attributes_caption; |
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| 438 | } |
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| 439 | |
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[156] | 440 | /// \brief Destructor |
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[127] | 441 | ~DigraphWriter() { |
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| 442 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
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| 443 | it != _node_maps.end(); ++it) { |
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| 444 | delete it->second; |
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| 445 | } |
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| 446 | |
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| 447 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
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| 448 | it != _arc_maps.end(); ++it) { |
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| 449 | delete it->second; |
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| 450 | } |
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| 451 | |
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| 452 | for (typename Attributes::iterator it = _attributes.begin(); |
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| 453 | it != _attributes.end(); ++it) { |
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| 454 | delete it->second; |
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| 455 | } |
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| 456 | |
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| 457 | if (local_os) { |
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| 458 | delete _os; |
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| 459 | } |
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| 460 | } |
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| 461 | |
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| 462 | private: |
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| 463 | |
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| 464 | DigraphWriter& operator=(const DigraphWriter&); |
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| 465 | |
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| 466 | public: |
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| 467 | |
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[156] | 468 | /// \name Writing rules |
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| 469 | /// @{ |
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| 470 | |
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| 471 | /// \brief Node map reading rule |
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| 472 | /// |
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| 473 | /// Add a node map reading rule to the writer. |
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[127] | 474 | template <typename Map> |
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| 475 | DigraphWriter& nodeMap(const std::string& caption, const Map& map) { |
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| 476 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
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| 477 | _writer_bits::MapStorageBase<Node>* storage = |
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| 478 | new _writer_bits::MapStorage<Node, Map>(map); |
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| 479 | _node_maps.push_back(std::make_pair(caption, storage)); |
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| 480 | return *this; |
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| 481 | } |
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| 482 | |
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[156] | 483 | /// \brief Node map writing rule |
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| 484 | /// |
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| 485 | /// Add a node map writing rule with specialized converter to the |
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| 486 | /// writer. |
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[127] | 487 | template <typename Map, typename Converter> |
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| 488 | DigraphWriter& nodeMap(const std::string& caption, const Map& map, |
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| 489 | const Converter& converter = Converter()) { |
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| 490 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
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| 491 | _writer_bits::MapStorageBase<Node>* storage = |
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| 492 | new _writer_bits::MapStorage<Node, Map, Converter>(map, converter); |
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| 493 | _node_maps.push_back(std::make_pair(caption, storage)); |
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| 494 | return *this; |
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| 495 | } |
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| 496 | |
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[156] | 497 | /// \brief Arc map writing rule |
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| 498 | /// |
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| 499 | /// Add an arc map writing rule to the writer. |
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[127] | 500 | template <typename Map> |
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| 501 | DigraphWriter& arcMap(const std::string& caption, const Map& map) { |
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| 502 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
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| 503 | _writer_bits::MapStorageBase<Arc>* storage = |
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| 504 | new _writer_bits::MapStorage<Arc, Map>(map); |
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| 505 | _arc_maps.push_back(std::make_pair(caption, storage)); |
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| 506 | return *this; |
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| 507 | } |
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| 508 | |
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[156] | 509 | /// \brief Arc map writing rule |
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| 510 | /// |
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| 511 | /// Add an arc map writing rule with specialized converter to the |
---|
| 512 | /// writer. |
---|
[127] | 513 | template <typename Map, typename Converter> |
---|
| 514 | DigraphWriter& arcMap(const std::string& caption, const Map& map, |
---|
| 515 | const Converter& converter = Converter()) { |
---|
| 516 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
---|
| 517 | _writer_bits::MapStorageBase<Arc>* storage = |
---|
| 518 | new _writer_bits::MapStorage<Arc, Map, Converter>(map, converter); |
---|
| 519 | _arc_maps.push_back(std::make_pair(caption, storage)); |
---|
| 520 | return *this; |
---|
| 521 | } |
---|
| 522 | |
---|
[156] | 523 | /// \brief Attribute writing rule |
---|
| 524 | /// |
---|
| 525 | /// Add an attribute writing rule to the writer. |
---|
[127] | 526 | template <typename Value> |
---|
| 527 | DigraphWriter& attribute(const std::string& caption, const Value& value) { |
---|
| 528 | _writer_bits::ValueStorageBase* storage = |
---|
| 529 | new _writer_bits::ValueStorage<Value>(value); |
---|
| 530 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 531 | return *this; |
---|
| 532 | } |
---|
| 533 | |
---|
[156] | 534 | /// \brief Attribute writing rule |
---|
| 535 | /// |
---|
| 536 | /// Add an attribute writing rule with specialized converter to the |
---|
| 537 | /// writer. |
---|
[127] | 538 | template <typename Value, typename Converter> |
---|
| 539 | DigraphWriter& attribute(const std::string& caption, const Value& value, |
---|
| 540 | const Converter& converter = Converter()) { |
---|
| 541 | _writer_bits::ValueStorageBase* storage = |
---|
| 542 | new _writer_bits::ValueStorage<Value, Converter>(value, converter); |
---|
| 543 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 544 | return *this; |
---|
| 545 | } |
---|
| 546 | |
---|
[156] | 547 | /// \brief Node writing rule |
---|
| 548 | /// |
---|
| 549 | /// Add a node writing rule to the writer. |
---|
[127] | 550 | DigraphWriter& node(const std::string& caption, const Node& node) { |
---|
| 551 | typedef _writer_bits::MapLookUpConverter<Node> Converter; |
---|
| 552 | Converter converter(_node_index); |
---|
| 553 | _writer_bits::ValueStorageBase* storage = |
---|
| 554 | new _writer_bits::ValueStorage<Node, Converter>(node, converter); |
---|
| 555 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 556 | return *this; |
---|
| 557 | } |
---|
| 558 | |
---|
[156] | 559 | /// \brief Arc writing rule |
---|
| 560 | /// |
---|
| 561 | /// Add an arc writing rule to writer. |
---|
[127] | 562 | DigraphWriter& arc(const std::string& caption, const Arc& arc) { |
---|
| 563 | typedef _writer_bits::MapLookUpConverter<Arc> Converter; |
---|
| 564 | Converter converter(_arc_index); |
---|
| 565 | _writer_bits::ValueStorageBase* storage = |
---|
| 566 | new _writer_bits::ValueStorage<Arc, Converter>(arc, converter); |
---|
| 567 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 568 | return *this; |
---|
| 569 | } |
---|
| 570 | |
---|
[156] | 571 | /// \name Select section by name |
---|
| 572 | /// @{ |
---|
| 573 | |
---|
| 574 | /// \brief Set \c \@nodes section to be read |
---|
| 575 | /// |
---|
| 576 | /// Set \c \@nodes section to be read |
---|
[127] | 577 | DigraphWriter& nodes(const std::string& caption) { |
---|
| 578 | _nodes_caption = caption; |
---|
| 579 | return *this; |
---|
| 580 | } |
---|
| 581 | |
---|
[156] | 582 | /// \brief Set \c \@arcs section to be read |
---|
| 583 | /// |
---|
| 584 | /// Set \c \@arcs section to be read |
---|
[127] | 585 | DigraphWriter& arcs(const std::string& caption) { |
---|
| 586 | _arcs_caption = caption; |
---|
| 587 | return *this; |
---|
| 588 | } |
---|
| 589 | |
---|
[156] | 590 | /// \brief Set \c \@attributes section to be read |
---|
| 591 | /// |
---|
| 592 | /// Set \c \@attributes section to be read |
---|
[127] | 593 | DigraphWriter& attributes(const std::string& caption) { |
---|
| 594 | _attributes_caption = caption; |
---|
| 595 | return *this; |
---|
| 596 | } |
---|
| 597 | |
---|
[156] | 598 | /// \name Skipping section |
---|
| 599 | /// @{ |
---|
| 600 | |
---|
| 601 | /// \brief Skip writing the node set |
---|
| 602 | /// |
---|
| 603 | /// The \c \@nodes section will be not written to the stream. |
---|
[127] | 604 | DigraphWriter& skipNodes() { |
---|
| 605 | LEMON_ASSERT(!_skip_nodes, "Multiple usage of skipNodes() member"); |
---|
| 606 | return *this; |
---|
| 607 | } |
---|
| 608 | |
---|
[156] | 609 | /// \brief Skip writing arc set |
---|
| 610 | /// |
---|
| 611 | /// The \c \@arcs section will be not written to the stream. |
---|
[127] | 612 | DigraphWriter& skipArcs() { |
---|
| 613 | LEMON_ASSERT(!_skip_arcs, "Multiple usage of skipArcs() member"); |
---|
| 614 | return *this; |
---|
| 615 | } |
---|
| 616 | |
---|
[156] | 617 | /// @} |
---|
| 618 | |
---|
[127] | 619 | private: |
---|
| 620 | |
---|
| 621 | void writeNodes() { |
---|
| 622 | _writer_bits::MapStorageBase<Node>* label = 0; |
---|
| 623 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 624 | it != _node_maps.end(); ++it) { |
---|
| 625 | if (it->first == "label") { |
---|
| 626 | label = it->second; |
---|
| 627 | break; |
---|
| 628 | } |
---|
| 629 | } |
---|
| 630 | |
---|
| 631 | *_os << "@nodes"; |
---|
| 632 | if (!_nodes_caption.empty()) { |
---|
[156] | 633 | _writer_bits::writeToken(*_os << ' ', _nodes_caption); |
---|
[127] | 634 | } |
---|
| 635 | *_os << std::endl; |
---|
| 636 | |
---|
| 637 | if (label == 0) { |
---|
| 638 | *_os << "label" << '\t'; |
---|
| 639 | } |
---|
| 640 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 641 | it != _node_maps.end(); ++it) { |
---|
[156] | 642 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
[127] | 643 | } |
---|
| 644 | *_os << std::endl; |
---|
| 645 | |
---|
| 646 | std::vector<Node> nodes; |
---|
| 647 | for (NodeIt n(_digraph); n != INVALID; ++n) { |
---|
| 648 | nodes.push_back(n); |
---|
| 649 | } |
---|
| 650 | |
---|
| 651 | if (label == 0) { |
---|
| 652 | IdMap<Digraph, Node> id_map(_digraph); |
---|
| 653 | _writer_bits::MapLess<IdMap<Digraph, Node> > id_less(id_map); |
---|
| 654 | std::sort(nodes.begin(), nodes.end(), id_less); |
---|
| 655 | } else { |
---|
| 656 | label->sort(nodes); |
---|
| 657 | } |
---|
| 658 | |
---|
| 659 | for (int i = 0; i < static_cast<int>(nodes.size()); ++i) { |
---|
| 660 | Node n = nodes[i]; |
---|
| 661 | if (label == 0) { |
---|
| 662 | std::ostringstream os; |
---|
| 663 | os << _digraph.id(n); |
---|
| 664 | _writer_bits::writeToken(*_os, os.str()); |
---|
| 665 | *_os << '\t'; |
---|
| 666 | _node_index.insert(std::make_pair(n, os.str())); |
---|
| 667 | } |
---|
| 668 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 669 | it != _node_maps.end(); ++it) { |
---|
| 670 | std::string value = it->second->get(n); |
---|
| 671 | _writer_bits::writeToken(*_os, value); |
---|
| 672 | if (it->first == "label") { |
---|
| 673 | _node_index.insert(std::make_pair(n, value)); |
---|
| 674 | } |
---|
| 675 | *_os << '\t'; |
---|
| 676 | } |
---|
| 677 | *_os << std::endl; |
---|
| 678 | } |
---|
| 679 | } |
---|
| 680 | |
---|
| 681 | void writeArcs() { |
---|
| 682 | _writer_bits::MapStorageBase<Arc>* label = 0; |
---|
| 683 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
| 684 | it != _arc_maps.end(); ++it) { |
---|
| 685 | if (it->first == "label") { |
---|
| 686 | label = it->second; |
---|
| 687 | break; |
---|
| 688 | } |
---|
| 689 | } |
---|
| 690 | |
---|
| 691 | *_os << "@arcs"; |
---|
| 692 | if (!_arcs_caption.empty()) { |
---|
[156] | 693 | _writer_bits::writeToken(*_os << ' ', _arcs_caption); |
---|
[127] | 694 | } |
---|
| 695 | *_os << std::endl; |
---|
| 696 | |
---|
| 697 | *_os << '\t' << '\t'; |
---|
| 698 | if (label == 0) { |
---|
| 699 | *_os << "label" << '\t'; |
---|
| 700 | } |
---|
| 701 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
| 702 | it != _arc_maps.end(); ++it) { |
---|
[156] | 703 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
[127] | 704 | } |
---|
| 705 | *_os << std::endl; |
---|
| 706 | |
---|
| 707 | std::vector<Arc> arcs; |
---|
| 708 | for (ArcIt n(_digraph); n != INVALID; ++n) { |
---|
| 709 | arcs.push_back(n); |
---|
| 710 | } |
---|
| 711 | |
---|
| 712 | if (label == 0) { |
---|
| 713 | IdMap<Digraph, Arc> id_map(_digraph); |
---|
| 714 | _writer_bits::MapLess<IdMap<Digraph, Arc> > id_less(id_map); |
---|
| 715 | std::sort(arcs.begin(), arcs.end(), id_less); |
---|
| 716 | } else { |
---|
| 717 | label->sort(arcs); |
---|
| 718 | } |
---|
| 719 | |
---|
| 720 | for (int i = 0; i < static_cast<int>(arcs.size()); ++i) { |
---|
| 721 | Arc a = arcs[i]; |
---|
| 722 | _writer_bits::writeToken(*_os, _node_index. |
---|
| 723 | find(_digraph.source(a))->second); |
---|
| 724 | *_os << '\t'; |
---|
| 725 | _writer_bits::writeToken(*_os, _node_index. |
---|
| 726 | find(_digraph.target(a))->second); |
---|
| 727 | *_os << '\t'; |
---|
| 728 | if (label == 0) { |
---|
| 729 | std::ostringstream os; |
---|
| 730 | os << _digraph.id(a); |
---|
| 731 | _writer_bits::writeToken(*_os, os.str()); |
---|
| 732 | *_os << '\t'; |
---|
| 733 | _arc_index.insert(std::make_pair(a, os.str())); |
---|
| 734 | } |
---|
| 735 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
| 736 | it != _arc_maps.end(); ++it) { |
---|
| 737 | std::string value = it->second->get(a); |
---|
| 738 | _writer_bits::writeToken(*_os, value); |
---|
| 739 | if (it->first == "label") { |
---|
| 740 | _arc_index.insert(std::make_pair(a, value)); |
---|
| 741 | } |
---|
| 742 | *_os << '\t'; |
---|
| 743 | } |
---|
| 744 | *_os << std::endl; |
---|
| 745 | } |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | void writeAttributes() { |
---|
| 749 | if (_attributes.empty()) return; |
---|
| 750 | *_os << "@attributes"; |
---|
| 751 | if (!_attributes_caption.empty()) { |
---|
[156] | 752 | _writer_bits::writeToken(*_os << ' ', _attributes_caption); |
---|
[127] | 753 | } |
---|
| 754 | *_os << std::endl; |
---|
| 755 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
| 756 | it != _attributes.end(); ++it) { |
---|
[156] | 757 | _writer_bits::writeToken(*_os, it->first) << ' '; |
---|
[127] | 758 | _writer_bits::writeToken(*_os, it->second->get()); |
---|
| 759 | *_os << std::endl; |
---|
| 760 | } |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | public: |
---|
| 764 | |
---|
[156] | 765 | /// \name Execution of the writer |
---|
| 766 | /// @{ |
---|
| 767 | |
---|
| 768 | /// \brief Start the batch processing |
---|
| 769 | /// |
---|
| 770 | /// This function starts the batch processing |
---|
[127] | 771 | void run() { |
---|
| 772 | if (!_skip_nodes) { |
---|
| 773 | writeNodes(); |
---|
| 774 | } |
---|
| 775 | if (!_skip_arcs) { |
---|
| 776 | writeArcs(); |
---|
| 777 | } |
---|
| 778 | writeAttributes(); |
---|
| 779 | } |
---|
| 780 | |
---|
[156] | 781 | /// \brief Gives back the stream of the writer |
---|
| 782 | /// |
---|
| 783 | /// Gives back the stream of the writer |
---|
| 784 | std::ostream& ostream() { |
---|
[127] | 785 | return *_os; |
---|
| 786 | } |
---|
[156] | 787 | |
---|
| 788 | /// @} |
---|
[127] | 789 | }; |
---|
| 790 | |
---|
[156] | 791 | /// \relates DigraphWriter |
---|
[127] | 792 | template <typename Digraph> |
---|
[163] | 793 | DigraphWriter<Digraph> digraphWriter(std::ostream& os, Digraph& digraph) { |
---|
| 794 | DigraphWriter<Digraph> tmp(os, digraph); |
---|
| 795 | return tmp; |
---|
[127] | 796 | } |
---|
| 797 | |
---|
[156] | 798 | /// \relates DigraphWriter |
---|
[127] | 799 | template <typename Digraph> |
---|
| 800 | DigraphWriter<Digraph> digraphWriter(const std::string& fn, |
---|
| 801 | Digraph& digraph) { |
---|
[163] | 802 | DigraphWriter<Digraph> tmp(fn, digraph); |
---|
| 803 | return tmp; |
---|
[127] | 804 | } |
---|
| 805 | |
---|
[156] | 806 | /// \relates DigraphWriter |
---|
[127] | 807 | template <typename Digraph> |
---|
| 808 | DigraphWriter<Digraph> digraphWriter(const char* fn, Digraph& digraph) { |
---|
[163] | 809 | DigraphWriter<Digraph> tmp(fn, digraph); |
---|
| 810 | return tmp; |
---|
[127] | 811 | } |
---|
[165] | 812 | |
---|
| 813 | /// \ingroup lemon_io |
---|
| 814 | /// |
---|
| 815 | /// \brief LGF writer for directed graphs |
---|
| 816 | /// |
---|
| 817 | /// This utility writes an \ref lgf-format "LGF" file. |
---|
| 818 | template <typename _Graph> |
---|
| 819 | class GraphWriter { |
---|
| 820 | public: |
---|
| 821 | |
---|
| 822 | typedef _Graph Graph; |
---|
| 823 | TEMPLATE_GRAPH_TYPEDEFS(Graph); |
---|
| 824 | |
---|
| 825 | private: |
---|
| 826 | |
---|
| 827 | |
---|
| 828 | std::ostream* _os; |
---|
| 829 | bool local_os; |
---|
| 830 | |
---|
| 831 | Graph& _graph; |
---|
| 832 | |
---|
| 833 | std::string _nodes_caption; |
---|
| 834 | std::string _edges_caption; |
---|
| 835 | std::string _attributes_caption; |
---|
| 836 | |
---|
| 837 | typedef std::map<Node, std::string> NodeIndex; |
---|
| 838 | NodeIndex _node_index; |
---|
| 839 | typedef std::map<Edge, std::string> EdgeIndex; |
---|
| 840 | EdgeIndex _edge_index; |
---|
| 841 | |
---|
| 842 | typedef std::vector<std::pair<std::string, |
---|
| 843 | _writer_bits::MapStorageBase<Node>* > > NodeMaps; |
---|
| 844 | NodeMaps _node_maps; |
---|
| 845 | |
---|
| 846 | typedef std::vector<std::pair<std::string, |
---|
| 847 | _writer_bits::MapStorageBase<Edge>* > >EdgeMaps; |
---|
| 848 | EdgeMaps _edge_maps; |
---|
| 849 | |
---|
| 850 | typedef std::vector<std::pair<std::string, |
---|
| 851 | _writer_bits::ValueStorageBase*> > Attributes; |
---|
| 852 | Attributes _attributes; |
---|
| 853 | |
---|
| 854 | bool _skip_nodes; |
---|
| 855 | bool _skip_edges; |
---|
| 856 | |
---|
| 857 | public: |
---|
| 858 | |
---|
| 859 | /// \brief Constructor |
---|
| 860 | /// |
---|
| 861 | /// Construct a directed graph writer, which writes to the given |
---|
| 862 | /// output stream. |
---|
| 863 | GraphWriter(std::ostream& is, Graph& graph) |
---|
| 864 | : _os(&is), local_os(false), _graph(graph), |
---|
| 865 | _skip_nodes(false), _skip_edges(false) {} |
---|
| 866 | |
---|
| 867 | /// \brief Constructor |
---|
| 868 | /// |
---|
| 869 | /// Construct a directed graph writer, which writes to the given |
---|
| 870 | /// output file. |
---|
| 871 | GraphWriter(const std::string& fn, Graph& graph) |
---|
| 872 | : _os(new std::ofstream(fn.c_str())), local_os(true), _graph(graph), |
---|
| 873 | _skip_nodes(false), _skip_edges(false) {} |
---|
| 874 | |
---|
| 875 | /// \brief Constructor |
---|
| 876 | /// |
---|
| 877 | /// Construct a directed graph writer, which writes to the given |
---|
| 878 | /// output file. |
---|
| 879 | GraphWriter(const char* fn, Graph& graph) |
---|
| 880 | : _os(new std::ofstream(fn)), local_os(true), _graph(graph), |
---|
| 881 | _skip_nodes(false), _skip_edges(false) {} |
---|
| 882 | |
---|
| 883 | /// \brief Copy constructor |
---|
| 884 | /// |
---|
| 885 | /// The copy constructor transfers all data from the other writer, |
---|
| 886 | /// therefore the copied writer will not be usable more. |
---|
| 887 | GraphWriter(GraphWriter& other) |
---|
| 888 | : _os(other._os), local_os(other.local_os), _graph(other._graph), |
---|
| 889 | _skip_nodes(other._skip_nodes), _skip_edges(other._skip_edges) { |
---|
| 890 | |
---|
| 891 | other._os = 0; |
---|
| 892 | other.local_os = false; |
---|
| 893 | |
---|
| 894 | _node_index.swap(other._node_index); |
---|
| 895 | _edge_index.swap(other._edge_index); |
---|
| 896 | |
---|
| 897 | _node_maps.swap(other._node_maps); |
---|
| 898 | _edge_maps.swap(other._edge_maps); |
---|
| 899 | _attributes.swap(other._attributes); |
---|
| 900 | |
---|
| 901 | _nodes_caption = other._nodes_caption; |
---|
| 902 | _edges_caption = other._edges_caption; |
---|
| 903 | _attributes_caption = other._attributes_caption; |
---|
| 904 | } |
---|
| 905 | |
---|
| 906 | /// \brief Destructor |
---|
| 907 | ~GraphWriter() { |
---|
| 908 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 909 | it != _node_maps.end(); ++it) { |
---|
| 910 | delete it->second; |
---|
| 911 | } |
---|
| 912 | |
---|
| 913 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
| 914 | it != _edge_maps.end(); ++it) { |
---|
| 915 | delete it->second; |
---|
| 916 | } |
---|
| 917 | |
---|
| 918 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
| 919 | it != _attributes.end(); ++it) { |
---|
| 920 | delete it->second; |
---|
| 921 | } |
---|
| 922 | |
---|
| 923 | if (local_os) { |
---|
| 924 | delete _os; |
---|
| 925 | } |
---|
| 926 | } |
---|
| 927 | |
---|
| 928 | private: |
---|
| 929 | |
---|
| 930 | GraphWriter& operator=(const GraphWriter&); |
---|
| 931 | |
---|
| 932 | public: |
---|
| 933 | |
---|
| 934 | /// \name Writing rules |
---|
| 935 | /// @{ |
---|
| 936 | |
---|
| 937 | /// \brief Node map reading rule |
---|
| 938 | /// |
---|
| 939 | /// Add a node map reading rule to the writer. |
---|
| 940 | template <typename Map> |
---|
| 941 | GraphWriter& nodeMap(const std::string& caption, const Map& map) { |
---|
| 942 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
| 943 | _writer_bits::MapStorageBase<Node>* storage = |
---|
| 944 | new _writer_bits::MapStorage<Node, Map>(map); |
---|
| 945 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
| 946 | return *this; |
---|
| 947 | } |
---|
| 948 | |
---|
| 949 | /// \brief Node map writing rule |
---|
| 950 | /// |
---|
| 951 | /// Add a node map writing rule with specialized converter to the |
---|
| 952 | /// writer. |
---|
| 953 | template <typename Map, typename Converter> |
---|
| 954 | GraphWriter& nodeMap(const std::string& caption, const Map& map, |
---|
| 955 | const Converter& converter = Converter()) { |
---|
| 956 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
| 957 | _writer_bits::MapStorageBase<Node>* storage = |
---|
| 958 | new _writer_bits::MapStorage<Node, Map, Converter>(map, converter); |
---|
| 959 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
| 960 | return *this; |
---|
| 961 | } |
---|
| 962 | |
---|
| 963 | /// \brief Edge map writing rule |
---|
| 964 | /// |
---|
| 965 | /// Add an edge map writing rule to the writer. |
---|
| 966 | template <typename Map> |
---|
| 967 | GraphWriter& edgeMap(const std::string& caption, const Map& map) { |
---|
| 968 | checkConcept<concepts::ReadMap<Edge, typename Map::Value>, Map>(); |
---|
| 969 | _writer_bits::MapStorageBase<Edge>* storage = |
---|
| 970 | new _writer_bits::MapStorage<Edge, Map>(map); |
---|
| 971 | _edge_maps.push_back(std::make_pair(caption, storage)); |
---|
| 972 | return *this; |
---|
| 973 | } |
---|
| 974 | |
---|
| 975 | /// \brief Edge map writing rule |
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| 976 | /// |
---|
| 977 | /// Add an edge map writing rule with specialized converter to the |
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| 978 | /// writer. |
---|
| 979 | template <typename Map, typename Converter> |
---|
| 980 | GraphWriter& edgeMap(const std::string& caption, const Map& map, |
---|
| 981 | const Converter& converter = Converter()) { |
---|
| 982 | checkConcept<concepts::ReadMap<Edge, typename Map::Value>, Map>(); |
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| 983 | _writer_bits::MapStorageBase<Edge>* storage = |
---|
| 984 | new _writer_bits::MapStorage<Edge, Map, Converter>(map, converter); |
---|
| 985 | _edge_maps.push_back(std::make_pair(caption, storage)); |
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| 986 | return *this; |
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| 987 | } |
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| 988 | |
---|
| 989 | /// \brief Arc map writing rule |
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| 990 | /// |
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| 991 | /// Add an arc map writing rule to the writer. |
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| 992 | template <typename Map> |
---|
| 993 | GraphWriter& arcMap(const std::string& caption, const Map& map) { |
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| 994 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
---|
| 995 | _writer_bits::MapStorageBase<Edge>* forward_storage = |
---|
| 996 | new _writer_bits::GraphArcMapStorage<Graph, true, Map>(_graph, map); |
---|
| 997 | _edge_maps.push_back(std::make_pair('+' + caption, forward_storage)); |
---|
| 998 | _writer_bits::MapStorageBase<Edge>* backward_storage = |
---|
| 999 | new _writer_bits::GraphArcMapStorage<Graph, false, Map>(_graph, map); |
---|
| 1000 | _edge_maps.push_back(std::make_pair('-' + caption, backward_storage)); |
---|
| 1001 | return *this; |
---|
| 1002 | } |
---|
| 1003 | |
---|
| 1004 | /// \brief Arc map writing rule |
---|
| 1005 | /// |
---|
| 1006 | /// Add an arc map writing rule with specialized converter to the |
---|
| 1007 | /// writer. |
---|
| 1008 | template <typename Map, typename Converter> |
---|
| 1009 | GraphWriter& arcMap(const std::string& caption, const Map& map, |
---|
| 1010 | const Converter& converter = Converter()) { |
---|
| 1011 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
---|
| 1012 | _writer_bits::MapStorageBase<Edge>* forward_storage = |
---|
| 1013 | new _writer_bits::GraphArcMapStorage<Graph, true, Map, Converter> |
---|
| 1014 | (_graph, map, converter); |
---|
| 1015 | _edge_maps.push_back(std::make_pair('+' + caption, forward_storage)); |
---|
| 1016 | _writer_bits::MapStorageBase<Edge>* backward_storage = |
---|
| 1017 | new _writer_bits::GraphArcMapStorage<Graph, false, Map, Converter> |
---|
| 1018 | (_graph, map, converter); |
---|
| 1019 | _edge_maps.push_back(std::make_pair('-' + caption, backward_storage)); |
---|
| 1020 | return *this; |
---|
| 1021 | } |
---|
| 1022 | |
---|
| 1023 | /// \brief Attribute writing rule |
---|
| 1024 | /// |
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| 1025 | /// Add an attribute writing rule to the writer. |
---|
| 1026 | template <typename Value> |
---|
| 1027 | GraphWriter& attribute(const std::string& caption, const Value& value) { |
---|
| 1028 | _writer_bits::ValueStorageBase* storage = |
---|
| 1029 | new _writer_bits::ValueStorage<Value>(value); |
---|
| 1030 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 1031 | return *this; |
---|
| 1032 | } |
---|
| 1033 | |
---|
| 1034 | /// \brief Attribute writing rule |
---|
| 1035 | /// |
---|
| 1036 | /// Add an attribute writing rule with specialized converter to the |
---|
| 1037 | /// writer. |
---|
| 1038 | template <typename Value, typename Converter> |
---|
| 1039 | GraphWriter& attribute(const std::string& caption, const Value& value, |
---|
| 1040 | const Converter& converter = Converter()) { |
---|
| 1041 | _writer_bits::ValueStorageBase* storage = |
---|
| 1042 | new _writer_bits::ValueStorage<Value, Converter>(value, converter); |
---|
| 1043 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 1044 | return *this; |
---|
| 1045 | } |
---|
| 1046 | |
---|
| 1047 | /// \brief Node writing rule |
---|
| 1048 | /// |
---|
| 1049 | /// Add a node writing rule to the writer. |
---|
| 1050 | GraphWriter& node(const std::string& caption, const Node& node) { |
---|
| 1051 | typedef _writer_bits::MapLookUpConverter<Node> Converter; |
---|
| 1052 | Converter converter(_node_index); |
---|
| 1053 | _writer_bits::ValueStorageBase* storage = |
---|
| 1054 | new _writer_bits::ValueStorage<Node, Converter>(node, converter); |
---|
| 1055 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 1056 | return *this; |
---|
| 1057 | } |
---|
| 1058 | |
---|
| 1059 | /// \brief Edge writing rule |
---|
| 1060 | /// |
---|
| 1061 | /// Add an edge writing rule to writer. |
---|
| 1062 | GraphWriter& edge(const std::string& caption, const Edge& edge) { |
---|
| 1063 | typedef _writer_bits::MapLookUpConverter<Edge> Converter; |
---|
| 1064 | Converter converter(_edge_index); |
---|
| 1065 | _writer_bits::ValueStorageBase* storage = |
---|
| 1066 | new _writer_bits::ValueStorage<Edge, Converter>(edge, converter); |
---|
| 1067 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 1068 | return *this; |
---|
| 1069 | } |
---|
| 1070 | |
---|
| 1071 | /// \brief Arc writing rule |
---|
| 1072 | /// |
---|
| 1073 | /// Add an arc writing rule to writer. |
---|
| 1074 | GraphWriter& arc(const std::string& caption, const Arc& arc) { |
---|
| 1075 | typedef _writer_bits::GraphArcLookUpConverter<Graph> Converter; |
---|
| 1076 | Converter converter(_graph, _edge_index); |
---|
| 1077 | _writer_bits::ValueStorageBase* storage = |
---|
| 1078 | new _writer_bits::ValueStorage<Arc, Converter>(arc, converter); |
---|
| 1079 | _attributes.push_back(std::make_pair(caption, storage)); |
---|
| 1080 | return *this; |
---|
| 1081 | } |
---|
| 1082 | |
---|
| 1083 | /// \name Select section by name |
---|
| 1084 | /// @{ |
---|
| 1085 | |
---|
| 1086 | /// \brief Set \c \@nodes section to be read |
---|
| 1087 | /// |
---|
| 1088 | /// Set \c \@nodes section to be read |
---|
| 1089 | GraphWriter& nodes(const std::string& caption) { |
---|
| 1090 | _nodes_caption = caption; |
---|
| 1091 | return *this; |
---|
| 1092 | } |
---|
| 1093 | |
---|
| 1094 | /// \brief Set \c \@edges section to be read |
---|
| 1095 | /// |
---|
| 1096 | /// Set \c \@edges section to be read |
---|
| 1097 | GraphWriter& edges(const std::string& caption) { |
---|
| 1098 | _edges_caption = caption; |
---|
| 1099 | return *this; |
---|
| 1100 | } |
---|
| 1101 | |
---|
| 1102 | /// \brief Set \c \@attributes section to be read |
---|
| 1103 | /// |
---|
| 1104 | /// Set \c \@attributes section to be read |
---|
| 1105 | GraphWriter& attributes(const std::string& caption) { |
---|
| 1106 | _attributes_caption = caption; |
---|
| 1107 | return *this; |
---|
| 1108 | } |
---|
| 1109 | |
---|
| 1110 | /// \name Skipping section |
---|
| 1111 | /// @{ |
---|
| 1112 | |
---|
| 1113 | /// \brief Skip writing the node set |
---|
| 1114 | /// |
---|
| 1115 | /// The \c \@nodes section will be not written to the stream. |
---|
| 1116 | GraphWriter& skipNodes() { |
---|
| 1117 | LEMON_ASSERT(!_skip_nodes, "Multiple usage of skipNodes() member"); |
---|
| 1118 | return *this; |
---|
| 1119 | } |
---|
| 1120 | |
---|
| 1121 | /// \brief Skip writing edge set |
---|
| 1122 | /// |
---|
| 1123 | /// The \c \@edges section will be not written to the stream. |
---|
| 1124 | GraphWriter& skipEdges() { |
---|
| 1125 | LEMON_ASSERT(!_skip_edges, "Multiple usage of skipEdges() member"); |
---|
| 1126 | return *this; |
---|
| 1127 | } |
---|
| 1128 | |
---|
| 1129 | /// @} |
---|
| 1130 | |
---|
| 1131 | private: |
---|
| 1132 | |
---|
| 1133 | void writeNodes() { |
---|
| 1134 | _writer_bits::MapStorageBase<Node>* label = 0; |
---|
| 1135 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 1136 | it != _node_maps.end(); ++it) { |
---|
| 1137 | if (it->first == "label") { |
---|
| 1138 | label = it->second; |
---|
| 1139 | break; |
---|
| 1140 | } |
---|
| 1141 | } |
---|
| 1142 | |
---|
| 1143 | *_os << "@nodes"; |
---|
| 1144 | if (!_nodes_caption.empty()) { |
---|
| 1145 | _writer_bits::writeToken(*_os << ' ', _nodes_caption); |
---|
| 1146 | } |
---|
| 1147 | *_os << std::endl; |
---|
| 1148 | |
---|
| 1149 | if (label == 0) { |
---|
| 1150 | *_os << "label" << '\t'; |
---|
| 1151 | } |
---|
| 1152 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 1153 | it != _node_maps.end(); ++it) { |
---|
| 1154 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
| 1155 | } |
---|
| 1156 | *_os << std::endl; |
---|
| 1157 | |
---|
| 1158 | std::vector<Node> nodes; |
---|
| 1159 | for (NodeIt n(_graph); n != INVALID; ++n) { |
---|
| 1160 | nodes.push_back(n); |
---|
| 1161 | } |
---|
| 1162 | |
---|
| 1163 | if (label == 0) { |
---|
| 1164 | IdMap<Graph, Node> id_map(_graph); |
---|
| 1165 | _writer_bits::MapLess<IdMap<Graph, Node> > id_less(id_map); |
---|
| 1166 | std::sort(nodes.begin(), nodes.end(), id_less); |
---|
| 1167 | } else { |
---|
| 1168 | label->sort(nodes); |
---|
| 1169 | } |
---|
| 1170 | |
---|
| 1171 | for (int i = 0; i < static_cast<int>(nodes.size()); ++i) { |
---|
| 1172 | Node n = nodes[i]; |
---|
| 1173 | if (label == 0) { |
---|
| 1174 | std::ostringstream os; |
---|
| 1175 | os << _graph.id(n); |
---|
| 1176 | _writer_bits::writeToken(*_os, os.str()); |
---|
| 1177 | *_os << '\t'; |
---|
| 1178 | _node_index.insert(std::make_pair(n, os.str())); |
---|
| 1179 | } |
---|
| 1180 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 1181 | it != _node_maps.end(); ++it) { |
---|
| 1182 | std::string value = it->second->get(n); |
---|
| 1183 | _writer_bits::writeToken(*_os, value); |
---|
| 1184 | if (it->first == "label") { |
---|
| 1185 | _node_index.insert(std::make_pair(n, value)); |
---|
| 1186 | } |
---|
| 1187 | *_os << '\t'; |
---|
| 1188 | } |
---|
| 1189 | *_os << std::endl; |
---|
| 1190 | } |
---|
| 1191 | } |
---|
| 1192 | |
---|
| 1193 | void writeEdges() { |
---|
| 1194 | _writer_bits::MapStorageBase<Edge>* label = 0; |
---|
| 1195 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
| 1196 | it != _edge_maps.end(); ++it) { |
---|
| 1197 | if (it->first == "label") { |
---|
| 1198 | label = it->second; |
---|
| 1199 | break; |
---|
| 1200 | } |
---|
| 1201 | } |
---|
| 1202 | |
---|
| 1203 | *_os << "@edges"; |
---|
| 1204 | if (!_edges_caption.empty()) { |
---|
| 1205 | _writer_bits::writeToken(*_os << ' ', _edges_caption); |
---|
| 1206 | } |
---|
| 1207 | *_os << std::endl; |
---|
| 1208 | |
---|
| 1209 | *_os << '\t' << '\t'; |
---|
| 1210 | if (label == 0) { |
---|
| 1211 | *_os << "label" << '\t'; |
---|
| 1212 | } |
---|
| 1213 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
| 1214 | it != _edge_maps.end(); ++it) { |
---|
| 1215 | _writer_bits::writeToken(*_os, it->first) << '\t'; |
---|
| 1216 | } |
---|
| 1217 | *_os << std::endl; |
---|
| 1218 | |
---|
| 1219 | std::vector<Edge> edges; |
---|
| 1220 | for (EdgeIt n(_graph); n != INVALID; ++n) { |
---|
| 1221 | edges.push_back(n); |
---|
| 1222 | } |
---|
| 1223 | |
---|
| 1224 | if (label == 0) { |
---|
| 1225 | IdMap<Graph, Edge> id_map(_graph); |
---|
| 1226 | _writer_bits::MapLess<IdMap<Graph, Edge> > id_less(id_map); |
---|
| 1227 | std::sort(edges.begin(), edges.end(), id_less); |
---|
| 1228 | } else { |
---|
| 1229 | label->sort(edges); |
---|
| 1230 | } |
---|
| 1231 | |
---|
| 1232 | for (int i = 0; i < static_cast<int>(edges.size()); ++i) { |
---|
| 1233 | Edge e = edges[i]; |
---|
| 1234 | _writer_bits::writeToken(*_os, _node_index. |
---|
| 1235 | find(_graph.u(e))->second); |
---|
| 1236 | *_os << '\t'; |
---|
| 1237 | _writer_bits::writeToken(*_os, _node_index. |
---|
| 1238 | find(_graph.v(e))->second); |
---|
| 1239 | *_os << '\t'; |
---|
| 1240 | if (label == 0) { |
---|
| 1241 | std::ostringstream os; |
---|
| 1242 | os << _graph.id(e); |
---|
| 1243 | _writer_bits::writeToken(*_os, os.str()); |
---|
| 1244 | *_os << '\t'; |
---|
| 1245 | _edge_index.insert(std::make_pair(e, os.str())); |
---|
| 1246 | } |
---|
| 1247 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
| 1248 | it != _edge_maps.end(); ++it) { |
---|
| 1249 | std::string value = it->second->get(e); |
---|
| 1250 | _writer_bits::writeToken(*_os, value); |
---|
| 1251 | if (it->first == "label") { |
---|
| 1252 | _edge_index.insert(std::make_pair(e, value)); |
---|
| 1253 | } |
---|
| 1254 | *_os << '\t'; |
---|
| 1255 | } |
---|
| 1256 | *_os << std::endl; |
---|
| 1257 | } |
---|
| 1258 | } |
---|
| 1259 | |
---|
| 1260 | void writeAttributes() { |
---|
| 1261 | if (_attributes.empty()) return; |
---|
| 1262 | *_os << "@attributes"; |
---|
| 1263 | if (!_attributes_caption.empty()) { |
---|
| 1264 | _writer_bits::writeToken(*_os << ' ', _attributes_caption); |
---|
| 1265 | } |
---|
| 1266 | *_os << std::endl; |
---|
| 1267 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
| 1268 | it != _attributes.end(); ++it) { |
---|
| 1269 | _writer_bits::writeToken(*_os, it->first) << ' '; |
---|
| 1270 | _writer_bits::writeToken(*_os, it->second->get()); |
---|
| 1271 | *_os << std::endl; |
---|
| 1272 | } |
---|
| 1273 | } |
---|
| 1274 | |
---|
| 1275 | public: |
---|
| 1276 | |
---|
| 1277 | /// \name Execution of the writer |
---|
| 1278 | /// @{ |
---|
| 1279 | |
---|
| 1280 | /// \brief Start the batch processing |
---|
| 1281 | /// |
---|
| 1282 | /// This function starts the batch processing |
---|
| 1283 | void run() { |
---|
| 1284 | if (!_skip_nodes) { |
---|
| 1285 | writeNodes(); |
---|
| 1286 | } |
---|
| 1287 | if (!_skip_edges) { |
---|
| 1288 | writeEdges(); |
---|
| 1289 | } |
---|
| 1290 | writeAttributes(); |
---|
| 1291 | } |
---|
| 1292 | |
---|
| 1293 | /// \brief Gives back the stream of the writer |
---|
| 1294 | /// |
---|
| 1295 | /// Gives back the stream of the writer |
---|
| 1296 | std::ostream& ostream() { |
---|
| 1297 | return *_os; |
---|
| 1298 | } |
---|
| 1299 | |
---|
| 1300 | /// @} |
---|
| 1301 | }; |
---|
| 1302 | |
---|
| 1303 | /// \relates GraphWriter |
---|
| 1304 | template <typename Graph> |
---|
| 1305 | GraphWriter<Graph> graphWriter(std::ostream& os, Graph& graph) { |
---|
| 1306 | GraphWriter<Graph> tmp(os, graph); |
---|
| 1307 | return tmp; |
---|
| 1308 | } |
---|
| 1309 | |
---|
| 1310 | /// \relates GraphWriter |
---|
| 1311 | template <typename Graph> |
---|
| 1312 | GraphWriter<Graph> graphWriter(const std::string& fn, Graph& graph) { |
---|
| 1313 | GraphWriter<Graph> tmp(fn, graph); |
---|
| 1314 | return tmp; |
---|
| 1315 | } |
---|
| 1316 | |
---|
| 1317 | /// \relates GraphWriter |
---|
| 1318 | template <typename Graph> |
---|
| 1319 | GraphWriter<Graph> graphWriter(const char* fn, Graph& graph) { |
---|
| 1320 | GraphWriter<Graph> tmp(fn, graph); |
---|
| 1321 | return tmp; |
---|
| 1322 | } |
---|
[127] | 1323 | } |
---|
| 1324 | |
---|
| 1325 | #endif |
---|