[209] | 1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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[127] | 2 | * |
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[209] | 3 | * This file is a part of LEMON, a generic C++ optimization library. |
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[127] | 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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[236] | 21 | ///\brief \ref lgf-format "LEMON Graph Format" reader. |
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[127] | 22 | |
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| 23 | |
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| 24 | #ifndef LEMON_LGF_READER_H |
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| 25 | #define LEMON_LGF_READER_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 <set> |
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| 32 | #include <map> |
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| 33 | |
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| 34 | #include <lemon/assert.h> |
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[220] | 35 | #include <lemon/core.h> |
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[127] | 36 | |
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| 37 | #include <lemon/lgf_writer.h> |
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| 38 | |
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| 39 | #include <lemon/concept_check.h> |
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| 40 | #include <lemon/concepts/maps.h> |
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| 41 | |
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| 42 | namespace lemon { |
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| 43 | |
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| 44 | namespace _reader_bits { |
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| 45 | |
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| 46 | template <typename Value> |
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| 47 | struct DefaultConverter { |
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| 48 | Value operator()(const std::string& str) { |
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[209] | 49 | std::istringstream is(str); |
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| 50 | Value value; |
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| 51 | is >> value; |
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| 52 | |
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| 53 | char c; |
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| 54 | if (is >> std::ws >> c) { |
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| 55 | throw DataFormatError("Remaining characters in token"); |
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| 56 | } |
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| 57 | return value; |
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[127] | 58 | } |
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| 59 | }; |
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| 60 | |
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| 61 | template <> |
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| 62 | struct DefaultConverter<std::string> { |
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| 63 | std::string operator()(const std::string& str) { |
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[209] | 64 | return str; |
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[127] | 65 | } |
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| 66 | }; |
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| 67 | |
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[209] | 68 | template <typename _Item> |
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[127] | 69 | class MapStorageBase { |
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| 70 | public: |
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| 71 | typedef _Item Item; |
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| 72 | |
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| 73 | public: |
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| 74 | MapStorageBase() {} |
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| 75 | virtual ~MapStorageBase() {} |
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| 76 | |
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| 77 | virtual void set(const Item& item, const std::string& value) = 0; |
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| 78 | |
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| 79 | }; |
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| 80 | |
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[209] | 81 | template <typename _Item, typename _Map, |
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| 82 | typename _Converter = DefaultConverter<typename _Map::Value> > |
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[127] | 83 | class MapStorage : public MapStorageBase<_Item> { |
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| 84 | public: |
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| 85 | typedef _Map Map; |
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| 86 | typedef _Converter Converter; |
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| 87 | typedef _Item Item; |
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[209] | 88 | |
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[127] | 89 | private: |
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| 90 | Map& _map; |
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| 91 | Converter _converter; |
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| 92 | |
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| 93 | public: |
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[209] | 94 | MapStorage(Map& map, const Converter& converter = Converter()) |
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| 95 | : _map(map), _converter(converter) {} |
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[127] | 96 | virtual ~MapStorage() {} |
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| 97 | |
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| 98 | virtual void set(const Item& item ,const std::string& value) { |
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[209] | 99 | _map.set(item, _converter(value)); |
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[127] | 100 | } |
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| 101 | }; |
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| 102 | |
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[209] | 103 | template <typename _Graph, bool _dir, typename _Map, |
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| 104 | typename _Converter = DefaultConverter<typename _Map::Value> > |
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[165] | 105 | class GraphArcMapStorage : public MapStorageBase<typename _Graph::Edge> { |
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| 106 | public: |
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| 107 | typedef _Map Map; |
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| 108 | typedef _Converter Converter; |
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| 109 | typedef _Graph Graph; |
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| 110 | typedef typename Graph::Edge Item; |
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| 111 | static const bool dir = _dir; |
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[209] | 112 | |
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[165] | 113 | private: |
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| 114 | const Graph& _graph; |
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| 115 | Map& _map; |
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| 116 | Converter _converter; |
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| 117 | |
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| 118 | public: |
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[209] | 119 | GraphArcMapStorage(const Graph& graph, Map& map, |
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| 120 | const Converter& converter = Converter()) |
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| 121 | : _graph(graph), _map(map), _converter(converter) {} |
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[165] | 122 | virtual ~GraphArcMapStorage() {} |
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| 123 | |
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| 124 | virtual void set(const Item& item ,const std::string& value) { |
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[209] | 125 | _map.set(_graph.direct(item, dir), _converter(value)); |
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[165] | 126 | } |
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| 127 | }; |
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| 128 | |
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[127] | 129 | class ValueStorageBase { |
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| 130 | public: |
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| 131 | ValueStorageBase() {} |
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| 132 | virtual ~ValueStorageBase() {} |
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| 133 | |
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| 134 | virtual void set(const std::string&) = 0; |
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| 135 | }; |
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| 136 | |
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| 137 | template <typename _Value, typename _Converter = DefaultConverter<_Value> > |
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| 138 | class ValueStorage : public ValueStorageBase { |
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| 139 | public: |
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| 140 | typedef _Value Value; |
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| 141 | typedef _Converter Converter; |
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| 142 | |
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| 143 | private: |
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| 144 | Value& _value; |
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| 145 | Converter _converter; |
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| 146 | |
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| 147 | public: |
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| 148 | ValueStorage(Value& value, const Converter& converter = Converter()) |
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[212] | 149 | : _value(value), _converter(converter) {} |
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[127] | 150 | |
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| 151 | virtual void set(const std::string& value) { |
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[209] | 152 | _value = _converter(value); |
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[127] | 153 | } |
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| 154 | }; |
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| 155 | |
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| 156 | template <typename Value> |
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| 157 | struct MapLookUpConverter { |
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| 158 | const std::map<std::string, Value>& _map; |
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| 159 | |
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| 160 | MapLookUpConverter(const std::map<std::string, Value>& map) |
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| 161 | : _map(map) {} |
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| 162 | |
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| 163 | Value operator()(const std::string& str) { |
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| 164 | typename std::map<std::string, Value>::const_iterator it = |
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| 165 | _map.find(str); |
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| 166 | if (it == _map.end()) { |
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| 167 | std::ostringstream msg; |
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| 168 | msg << "Item not found: " << str; |
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| 169 | throw DataFormatError(msg.str().c_str()); |
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| 170 | } |
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| 171 | return it->second; |
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| 172 | } |
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| 173 | }; |
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| 174 | |
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[165] | 175 | template <typename Graph> |
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| 176 | struct GraphArcLookUpConverter { |
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| 177 | const Graph& _graph; |
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| 178 | const std::map<std::string, typename Graph::Edge>& _map; |
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[209] | 179 | |
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| 180 | GraphArcLookUpConverter(const Graph& graph, |
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| 181 | const std::map<std::string, |
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| 182 | typename Graph::Edge>& map) |
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| 183 | : _graph(graph), _map(map) {} |
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| 184 | |
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[165] | 185 | typename Graph::Arc operator()(const std::string& str) { |
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[209] | 186 | if (str.empty() || (str[0] != '+' && str[0] != '-')) { |
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| 187 | throw DataFormatError("Item must start with '+' or '-'"); |
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| 188 | } |
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| 189 | typename std::map<std::string, typename Graph::Edge> |
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| 190 | ::const_iterator it = _map.find(str.substr(1)); |
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| 191 | if (it == _map.end()) { |
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| 192 | throw DataFormatError("Item not found"); |
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| 193 | } |
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| 194 | return _graph.direct(it->second, str[0] == '+'); |
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[165] | 195 | } |
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| 196 | }; |
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| 197 | |
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[197] | 198 | inline bool isWhiteSpace(char c) { |
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[209] | 199 | return c == ' ' || c == '\t' || c == '\v' || |
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| 200 | c == '\n' || c == '\r' || c == '\f'; |
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[127] | 201 | } |
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[209] | 202 | |
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[197] | 203 | inline bool isOct(char c) { |
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[209] | 204 | return '0' <= c && c <='7'; |
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[127] | 205 | } |
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[209] | 206 | |
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[197] | 207 | inline int valueOct(char c) { |
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[127] | 208 | LEMON_ASSERT(isOct(c), "The character is not octal."); |
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| 209 | return c - '0'; |
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| 210 | } |
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| 211 | |
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[197] | 212 | inline bool isHex(char c) { |
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[209] | 213 | return ('0' <= c && c <= '9') || |
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| 214 | ('a' <= c && c <= 'z') || |
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| 215 | ('A' <= c && c <= 'Z'); |
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[127] | 216 | } |
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[209] | 217 | |
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[197] | 218 | inline int valueHex(char c) { |
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[127] | 219 | LEMON_ASSERT(isHex(c), "The character is not hexadecimal."); |
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| 220 | if ('0' <= c && c <= '9') return c - '0'; |
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| 221 | if ('a' <= c && c <= 'z') return c - 'a' + 10; |
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| 222 | return c - 'A' + 10; |
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| 223 | } |
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| 224 | |
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[197] | 225 | inline bool isIdentifierFirstChar(char c) { |
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[127] | 226 | return ('a' <= c && c <= 'z') || |
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[209] | 227 | ('A' <= c && c <= 'Z') || c == '_'; |
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[127] | 228 | } |
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| 229 | |
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[197] | 230 | inline bool isIdentifierChar(char c) { |
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[127] | 231 | return isIdentifierFirstChar(c) || |
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[209] | 232 | ('0' <= c && c <= '9'); |
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[127] | 233 | } |
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| 234 | |
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[197] | 235 | inline char readEscape(std::istream& is) { |
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[127] | 236 | char c; |
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| 237 | if (!is.get(c)) |
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[209] | 238 | throw DataFormatError("Escape format error"); |
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[127] | 239 | |
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| 240 | switch (c) { |
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| 241 | case '\\': |
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[209] | 242 | return '\\'; |
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[127] | 243 | case '\"': |
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[209] | 244 | return '\"'; |
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[127] | 245 | case '\'': |
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[209] | 246 | return '\''; |
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[127] | 247 | case '\?': |
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[209] | 248 | return '\?'; |
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[127] | 249 | case 'a': |
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[209] | 250 | return '\a'; |
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[127] | 251 | case 'b': |
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[209] | 252 | return '\b'; |
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[127] | 253 | case 'f': |
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[209] | 254 | return '\f'; |
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[127] | 255 | case 'n': |
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[209] | 256 | return '\n'; |
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[127] | 257 | case 'r': |
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[209] | 258 | return '\r'; |
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[127] | 259 | case 't': |
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[209] | 260 | return '\t'; |
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[127] | 261 | case 'v': |
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[209] | 262 | return '\v'; |
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[127] | 263 | case 'x': |
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[209] | 264 | { |
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| 265 | int code; |
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| 266 | if (!is.get(c) || !isHex(c)) |
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| 267 | throw DataFormatError("Escape format error"); |
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| 268 | else if (code = valueHex(c), !is.get(c) || !isHex(c)) is.putback(c); |
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| 269 | else code = code * 16 + valueHex(c); |
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| 270 | return code; |
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| 271 | } |
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[127] | 272 | default: |
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[209] | 273 | { |
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| 274 | int code; |
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| 275 | if (!isOct(c)) |
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| 276 | throw DataFormatError("Escape format error"); |
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| 277 | else if (code = valueOct(c), !is.get(c) || !isOct(c)) |
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| 278 | is.putback(c); |
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| 279 | else if (code = code * 8 + valueOct(c), !is.get(c) || !isOct(c)) |
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| 280 | is.putback(c); |
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| 281 | else code = code * 8 + valueOct(c); |
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| 282 | return code; |
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| 283 | } |
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| 284 | } |
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[127] | 285 | } |
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[209] | 286 | |
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[197] | 287 | inline std::istream& readToken(std::istream& is, std::string& str) { |
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[127] | 288 | std::ostringstream os; |
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| 289 | |
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| 290 | char c; |
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| 291 | is >> std::ws; |
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[209] | 292 | |
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| 293 | if (!is.get(c)) |
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| 294 | return is; |
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[127] | 295 | |
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| 296 | if (c == '\"') { |
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[209] | 297 | while (is.get(c) && c != '\"') { |
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| 298 | if (c == '\\') |
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| 299 | c = readEscape(is); |
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| 300 | os << c; |
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| 301 | } |
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| 302 | if (!is) |
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| 303 | throw DataFormatError("Quoted format error"); |
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[127] | 304 | } else { |
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[209] | 305 | is.putback(c); |
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| 306 | while (is.get(c) && !isWhiteSpace(c)) { |
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| 307 | if (c == '\\') |
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| 308 | c = readEscape(is); |
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| 309 | os << c; |
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| 310 | } |
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| 311 | if (!is) { |
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| 312 | is.clear(); |
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| 313 | } else { |
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| 314 | is.putback(c); |
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| 315 | } |
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[127] | 316 | } |
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| 317 | str = os.str(); |
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| 318 | return is; |
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| 319 | } |
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[162] | 320 | |
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| 321 | class Section { |
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| 322 | public: |
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| 323 | virtual ~Section() {} |
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| 324 | virtual void process(std::istream& is, int& line_num) = 0; |
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| 325 | }; |
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| 326 | |
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| 327 | template <typename Functor> |
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| 328 | class LineSection : public Section { |
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| 329 | private: |
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| 330 | |
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| 331 | Functor _functor; |
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| 332 | |
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| 333 | public: |
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[209] | 334 | |
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[162] | 335 | LineSection(const Functor& functor) : _functor(functor) {} |
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| 336 | virtual ~LineSection() {} |
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| 337 | |
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| 338 | virtual void process(std::istream& is, int& line_num) { |
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[209] | 339 | char c; |
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| 340 | std::string line; |
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| 341 | while (is.get(c) && c != '@') { |
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| 342 | if (c == '\n') { |
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| 343 | ++line_num; |
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| 344 | } else if (c == '#') { |
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| 345 | getline(is, line); |
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| 346 | ++line_num; |
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| 347 | } else if (!isWhiteSpace(c)) { |
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| 348 | is.putback(c); |
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| 349 | getline(is, line); |
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| 350 | _functor(line); |
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| 351 | ++line_num; |
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| 352 | } |
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| 353 | } |
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| 354 | if (is) is.putback(c); |
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| 355 | else if (is.eof()) is.clear(); |
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[162] | 356 | } |
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| 357 | }; |
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| 358 | |
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| 359 | template <typename Functor> |
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| 360 | class StreamSection : public Section { |
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| 361 | private: |
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| 362 | |
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| 363 | Functor _functor; |
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| 364 | |
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| 365 | public: |
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[209] | 366 | |
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[162] | 367 | StreamSection(const Functor& functor) : _functor(functor) {} |
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[209] | 368 | virtual ~StreamSection() {} |
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[162] | 369 | |
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| 370 | virtual void process(std::istream& is, int& line_num) { |
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[209] | 371 | _functor(is, line_num); |
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| 372 | char c; |
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| 373 | std::string line; |
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| 374 | while (is.get(c) && c != '@') { |
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| 375 | if (c == '\n') { |
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| 376 | ++line_num; |
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| 377 | } else if (!isWhiteSpace(c)) { |
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| 378 | getline(is, line); |
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| 379 | ++line_num; |
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| 380 | } |
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| 381 | } |
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| 382 | if (is) is.putback(c); |
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| 383 | else if (is.eof()) is.clear(); |
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[162] | 384 | } |
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| 385 | }; |
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[209] | 386 | |
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[127] | 387 | } |
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[156] | 388 | |
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[190] | 389 | template <typename Digraph> |
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| 390 | class DigraphReader; |
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| 391 | |
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| 392 | template <typename Digraph> |
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[293] | 393 | DigraphReader<Digraph> digraphReader(Digraph& digraph, |
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| 394 | std::istream& is = std::cin); |
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[190] | 395 | |
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| 396 | template <typename Digraph> |
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[293] | 397 | DigraphReader<Digraph> digraphReader(Digraph& digraph, const std::string& fn); |
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[190] | 398 | |
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| 399 | template <typename Digraph> |
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[293] | 400 | DigraphReader<Digraph> digraphReader(Digraph& digraph, const char *fn); |
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[190] | 401 | |
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[156] | 402 | /// \ingroup lemon_io |
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[209] | 403 | /// |
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[192] | 404 | /// \brief \ref lgf-format "LGF" reader for directed graphs |
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[156] | 405 | /// |
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| 406 | /// This utility reads an \ref lgf-format "LGF" file. |
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| 407 | /// |
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| 408 | /// The reading method does a batch processing. The user creates a |
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| 409 | /// reader object, then various reading rules can be added to the |
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| 410 | /// reader, and eventually the reading is executed with the \c run() |
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| 411 | /// member function. A map reading rule can be added to the reader |
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| 412 | /// with the \c nodeMap() or \c arcMap() members. An optional |
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[162] | 413 | /// converter parameter can also be added as a standard functor |
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[192] | 414 | /// converting from \c std::string to the value type of the map. If it |
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[162] | 415 | /// is set, it will determine how the tokens in the file should be |
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[192] | 416 | /// converted to the value type of the map. If the functor is not set, |
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[162] | 417 | /// then a default conversion will be used. One map can be read into |
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| 418 | /// multiple map objects at the same time. The \c attribute(), \c |
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| 419 | /// node() and \c arc() functions are used to add attribute reading |
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| 420 | /// rules. |
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[156] | 421 | /// |
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| 422 | ///\code |
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[293] | 423 | /// DigraphReader<Digraph>(digraph, std::cin). |
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[192] | 424 | /// nodeMap("coordinates", coord_map). |
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| 425 | /// arcMap("capacity", cap_map). |
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| 426 | /// node("source", src). |
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| 427 | /// node("target", trg). |
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| 428 | /// attribute("caption", caption). |
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| 429 | /// run(); |
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[156] | 430 | ///\endcode |
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| 431 | /// |
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| 432 | /// By default the reader uses the first section in the file of the |
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| 433 | /// proper type. If a section has an optional name, then it can be |
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[162] | 434 | /// selected for reading by giving an optional name parameter to the |
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[189] | 435 | /// \c nodes(), \c arcs() or \c attributes() functions. |
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[156] | 436 | /// |
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| 437 | /// The \c useNodes() and \c useArcs() functions are used to tell the reader |
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| 438 | /// that the nodes or arcs should not be constructed (added to the |
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| 439 | /// graph) during the reading, but instead the label map of the items |
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| 440 | /// are given as a parameter of these functions. An |
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[192] | 441 | /// application of these functions is multipass reading, which is |
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| 442 | /// important if two \c \@arcs sections must be read from the |
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| 443 | /// file. In this case the first phase would read the node set and one |
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[156] | 444 | /// of the arc sets, while the second phase would read the second arc |
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| 445 | /// set into an \e ArcSet class (\c SmartArcSet or \c ListArcSet). |
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| 446 | /// The previously read label node map should be passed to the \c |
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| 447 | /// useNodes() functions. Another application of multipass reading when |
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[210] | 448 | /// paths are given as a node map or an arc map. |
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| 449 | /// It is impossible to read this in |
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[156] | 450 | /// a single pass, because the arcs are not constructed when the node |
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| 451 | /// maps are read. |
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[127] | 452 | template <typename _Digraph> |
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| 453 | class DigraphReader { |
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| 454 | public: |
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| 455 | |
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| 456 | typedef _Digraph Digraph; |
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[148] | 457 | TEMPLATE_DIGRAPH_TYPEDEFS(Digraph); |
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[209] | 458 | |
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[127] | 459 | private: |
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| 460 | |
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| 461 | |
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| 462 | std::istream* _is; |
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| 463 | bool local_is; |
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| 464 | |
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| 465 | Digraph& _digraph; |
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| 466 | |
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| 467 | std::string _nodes_caption; |
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| 468 | std::string _arcs_caption; |
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| 469 | std::string _attributes_caption; |
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| 470 | |
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| 471 | typedef std::map<std::string, Node> NodeIndex; |
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| 472 | NodeIndex _node_index; |
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| 473 | typedef std::map<std::string, Arc> ArcIndex; |
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| 474 | ArcIndex _arc_index; |
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[209] | 475 | |
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| 476 | typedef std::vector<std::pair<std::string, |
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| 477 | _reader_bits::MapStorageBase<Node>*> > NodeMaps; |
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| 478 | NodeMaps _node_maps; |
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[127] | 479 | |
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| 480 | typedef std::vector<std::pair<std::string, |
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| 481 | _reader_bits::MapStorageBase<Arc>*> >ArcMaps; |
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| 482 | ArcMaps _arc_maps; |
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| 483 | |
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[209] | 484 | typedef std::multimap<std::string, _reader_bits::ValueStorageBase*> |
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[127] | 485 | Attributes; |
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| 486 | Attributes _attributes; |
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| 487 | |
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| 488 | bool _use_nodes; |
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| 489 | bool _use_arcs; |
---|
| 490 | |
---|
[188] | 491 | bool _skip_nodes; |
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| 492 | bool _skip_arcs; |
---|
| 493 | |
---|
[127] | 494 | int line_num; |
---|
| 495 | std::istringstream line; |
---|
| 496 | |
---|
| 497 | public: |
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| 498 | |
---|
[156] | 499 | /// \brief Constructor |
---|
| 500 | /// |
---|
| 501 | /// Construct a directed graph reader, which reads from the given |
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| 502 | /// input stream. |
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[293] | 503 | DigraphReader(Digraph& digraph, std::istream& is = std::cin) |
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[127] | 504 | : _is(&is), local_is(false), _digraph(digraph), |
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[209] | 505 | _use_nodes(false), _use_arcs(false), |
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| 506 | _skip_nodes(false), _skip_arcs(false) {} |
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[127] | 507 | |
---|
[156] | 508 | /// \brief Constructor |
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| 509 | /// |
---|
| 510 | /// Construct a directed graph reader, which reads from the given |
---|
| 511 | /// file. |
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[293] | 512 | DigraphReader(Digraph& digraph, const std::string& fn) |
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[127] | 513 | : _is(new std::ifstream(fn.c_str())), local_is(true), _digraph(digraph), |
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[212] | 514 | _use_nodes(false), _use_arcs(false), |
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[209] | 515 | _skip_nodes(false), _skip_arcs(false) {} |
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| 516 | |
---|
[156] | 517 | /// \brief Constructor |
---|
| 518 | /// |
---|
| 519 | /// Construct a directed graph reader, which reads from the given |
---|
| 520 | /// file. |
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[293] | 521 | DigraphReader(Digraph& digraph, const char* fn) |
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[127] | 522 | : _is(new std::ifstream(fn)), local_is(true), _digraph(digraph), |
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[212] | 523 | _use_nodes(false), _use_arcs(false), |
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[209] | 524 | _skip_nodes(false), _skip_arcs(false) {} |
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[127] | 525 | |
---|
[156] | 526 | /// \brief Destructor |
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[127] | 527 | ~DigraphReader() { |
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[209] | 528 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
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| 529 | it != _node_maps.end(); ++it) { |
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| 530 | delete it->second; |
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[127] | 531 | } |
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| 532 | |
---|
[209] | 533 | for (typename ArcMaps::iterator it = _arc_maps.begin(); |
---|
| 534 | it != _arc_maps.end(); ++it) { |
---|
| 535 | delete it->second; |
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[127] | 536 | } |
---|
| 537 | |
---|
[209] | 538 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
| 539 | it != _attributes.end(); ++it) { |
---|
| 540 | delete it->second; |
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[127] | 541 | } |
---|
| 542 | |
---|
| 543 | if (local_is) { |
---|
[209] | 544 | delete _is; |
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[127] | 545 | } |
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| 546 | |
---|
| 547 | } |
---|
| 548 | |
---|
| 549 | private: |
---|
[190] | 550 | |
---|
[293] | 551 | friend DigraphReader<Digraph> digraphReader<>(Digraph& digraph, |
---|
| 552 | std::istream& is); |
---|
| 553 | friend DigraphReader<Digraph> digraphReader<>(Digraph& digraph, |
---|
| 554 | const std::string& fn); |
---|
| 555 | friend DigraphReader<Digraph> digraphReader<>(Digraph& digraph, |
---|
| 556 | const char *fn); |
---|
[209] | 557 | |
---|
| 558 | DigraphReader(DigraphReader& other) |
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[190] | 559 | : _is(other._is), local_is(other.local_is), _digraph(other._digraph), |
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[209] | 560 | _use_nodes(other._use_nodes), _use_arcs(other._use_arcs), |
---|
| 561 | _skip_nodes(other._skip_nodes), _skip_arcs(other._skip_arcs) { |
---|
[190] | 562 | |
---|
| 563 | other._is = 0; |
---|
| 564 | other.local_is = false; |
---|
[209] | 565 | |
---|
[190] | 566 | _node_index.swap(other._node_index); |
---|
| 567 | _arc_index.swap(other._arc_index); |
---|
| 568 | |
---|
| 569 | _node_maps.swap(other._node_maps); |
---|
| 570 | _arc_maps.swap(other._arc_maps); |
---|
| 571 | _attributes.swap(other._attributes); |
---|
| 572 | |
---|
| 573 | _nodes_caption = other._nodes_caption; |
---|
| 574 | _arcs_caption = other._arcs_caption; |
---|
| 575 | _attributes_caption = other._attributes_caption; |
---|
| 576 | |
---|
| 577 | } |
---|
| 578 | |
---|
[127] | 579 | DigraphReader& operator=(const DigraphReader&); |
---|
| 580 | |
---|
| 581 | public: |
---|
| 582 | |
---|
[156] | 583 | /// \name Reading rules |
---|
| 584 | /// @{ |
---|
[209] | 585 | |
---|
[156] | 586 | /// \brief Node map reading rule |
---|
| 587 | /// |
---|
| 588 | /// Add a node map reading rule to the reader. |
---|
[127] | 589 | template <typename Map> |
---|
| 590 | DigraphReader& nodeMap(const std::string& caption, Map& map) { |
---|
| 591 | checkConcept<concepts::WriteMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 592 | _reader_bits::MapStorageBase<Node>* storage = |
---|
| 593 | new _reader_bits::MapStorage<Node, Map>(map); |
---|
[127] | 594 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
| 595 | return *this; |
---|
| 596 | } |
---|
| 597 | |
---|
[156] | 598 | /// \brief Node map reading rule |
---|
| 599 | /// |
---|
| 600 | /// Add a node map reading rule with specialized converter to the |
---|
| 601 | /// reader. |
---|
[127] | 602 | template <typename Map, typename Converter> |
---|
[209] | 603 | DigraphReader& nodeMap(const std::string& caption, Map& map, |
---|
| 604 | const Converter& converter = Converter()) { |
---|
[127] | 605 | checkConcept<concepts::WriteMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 606 | _reader_bits::MapStorageBase<Node>* storage = |
---|
| 607 | new _reader_bits::MapStorage<Node, Map, Converter>(map, converter); |
---|
[127] | 608 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
| 609 | return *this; |
---|
| 610 | } |
---|
| 611 | |
---|
[156] | 612 | /// \brief Arc map reading rule |
---|
| 613 | /// |
---|
| 614 | /// Add an arc map reading rule to the reader. |
---|
[127] | 615 | template <typename Map> |
---|
| 616 | DigraphReader& arcMap(const std::string& caption, Map& map) { |
---|
| 617 | checkConcept<concepts::WriteMap<Arc, typename Map::Value>, Map>(); |
---|
[209] | 618 | _reader_bits::MapStorageBase<Arc>* storage = |
---|
| 619 | new _reader_bits::MapStorage<Arc, Map>(map); |
---|
[127] | 620 | _arc_maps.push_back(std::make_pair(caption, storage)); |
---|
| 621 | return *this; |
---|
| 622 | } |
---|
| 623 | |
---|
[156] | 624 | /// \brief Arc map reading rule |
---|
| 625 | /// |
---|
| 626 | /// Add an arc map reading rule with specialized converter to the |
---|
| 627 | /// reader. |
---|
[127] | 628 | template <typename Map, typename Converter> |
---|
[209] | 629 | DigraphReader& arcMap(const std::string& caption, Map& map, |
---|
| 630 | const Converter& converter = Converter()) { |
---|
[127] | 631 | checkConcept<concepts::WriteMap<Arc, typename Map::Value>, Map>(); |
---|
[209] | 632 | _reader_bits::MapStorageBase<Arc>* storage = |
---|
| 633 | new _reader_bits::MapStorage<Arc, Map, Converter>(map, converter); |
---|
[127] | 634 | _arc_maps.push_back(std::make_pair(caption, storage)); |
---|
| 635 | return *this; |
---|
| 636 | } |
---|
| 637 | |
---|
[156] | 638 | /// \brief Attribute reading rule |
---|
| 639 | /// |
---|
| 640 | /// Add an attribute reading rule to the reader. |
---|
[127] | 641 | template <typename Value> |
---|
| 642 | DigraphReader& attribute(const std::string& caption, Value& value) { |
---|
[209] | 643 | _reader_bits::ValueStorageBase* storage = |
---|
| 644 | new _reader_bits::ValueStorage<Value>(value); |
---|
[127] | 645 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 646 | return *this; |
---|
| 647 | } |
---|
| 648 | |
---|
[156] | 649 | /// \brief Attribute reading rule |
---|
| 650 | /// |
---|
| 651 | /// Add an attribute reading rule with specialized converter to the |
---|
| 652 | /// reader. |
---|
[127] | 653 | template <typename Value, typename Converter> |
---|
[209] | 654 | DigraphReader& attribute(const std::string& caption, Value& value, |
---|
| 655 | const Converter& converter = Converter()) { |
---|
| 656 | _reader_bits::ValueStorageBase* storage = |
---|
| 657 | new _reader_bits::ValueStorage<Value, Converter>(value, converter); |
---|
[127] | 658 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 659 | return *this; |
---|
| 660 | } |
---|
| 661 | |
---|
[156] | 662 | /// \brief Node reading rule |
---|
| 663 | /// |
---|
| 664 | /// Add a node reading rule to reader. |
---|
[127] | 665 | DigraphReader& node(const std::string& caption, Node& node) { |
---|
| 666 | typedef _reader_bits::MapLookUpConverter<Node> Converter; |
---|
| 667 | Converter converter(_node_index); |
---|
[209] | 668 | _reader_bits::ValueStorageBase* storage = |
---|
| 669 | new _reader_bits::ValueStorage<Node, Converter>(node, converter); |
---|
[127] | 670 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 671 | return *this; |
---|
| 672 | } |
---|
| 673 | |
---|
[156] | 674 | /// \brief Arc reading rule |
---|
| 675 | /// |
---|
| 676 | /// Add an arc reading rule to reader. |
---|
[127] | 677 | DigraphReader& arc(const std::string& caption, Arc& arc) { |
---|
| 678 | typedef _reader_bits::MapLookUpConverter<Arc> Converter; |
---|
| 679 | Converter converter(_arc_index); |
---|
[209] | 680 | _reader_bits::ValueStorageBase* storage = |
---|
| 681 | new _reader_bits::ValueStorage<Arc, Converter>(arc, converter); |
---|
[127] | 682 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 683 | return *this; |
---|
| 684 | } |
---|
| 685 | |
---|
[156] | 686 | /// @} |
---|
| 687 | |
---|
| 688 | /// \name Select section by name |
---|
| 689 | /// @{ |
---|
| 690 | |
---|
| 691 | /// \brief Set \c \@nodes section to be read |
---|
| 692 | /// |
---|
| 693 | /// Set \c \@nodes section to be read |
---|
[127] | 694 | DigraphReader& nodes(const std::string& caption) { |
---|
| 695 | _nodes_caption = caption; |
---|
| 696 | return *this; |
---|
| 697 | } |
---|
| 698 | |
---|
[156] | 699 | /// \brief Set \c \@arcs section to be read |
---|
| 700 | /// |
---|
| 701 | /// Set \c \@arcs section to be read |
---|
[127] | 702 | DigraphReader& arcs(const std::string& caption) { |
---|
| 703 | _arcs_caption = caption; |
---|
| 704 | return *this; |
---|
| 705 | } |
---|
| 706 | |
---|
[156] | 707 | /// \brief Set \c \@attributes section to be read |
---|
| 708 | /// |
---|
| 709 | /// Set \c \@attributes section to be read |
---|
[127] | 710 | DigraphReader& attributes(const std::string& caption) { |
---|
| 711 | _attributes_caption = caption; |
---|
| 712 | return *this; |
---|
| 713 | } |
---|
| 714 | |
---|
[156] | 715 | /// @} |
---|
| 716 | |
---|
| 717 | /// \name Using previously constructed node or arc set |
---|
| 718 | /// @{ |
---|
| 719 | |
---|
| 720 | /// \brief Use previously constructed node set |
---|
| 721 | /// |
---|
| 722 | /// Use previously constructed node set, and specify the node |
---|
| 723 | /// label map. |
---|
[127] | 724 | template <typename Map> |
---|
| 725 | DigraphReader& useNodes(const Map& map) { |
---|
| 726 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 727 | LEMON_ASSERT(!_use_nodes, "Multiple usage of useNodes() member"); |
---|
[127] | 728 | _use_nodes = true; |
---|
| 729 | _writer_bits::DefaultConverter<typename Map::Value> converter; |
---|
| 730 | for (NodeIt n(_digraph); n != INVALID; ++n) { |
---|
[209] | 731 | _node_index.insert(std::make_pair(converter(map[n]), n)); |
---|
[127] | 732 | } |
---|
| 733 | return *this; |
---|
| 734 | } |
---|
| 735 | |
---|
[156] | 736 | /// \brief Use previously constructed node set |
---|
| 737 | /// |
---|
| 738 | /// Use previously constructed node set, and specify the node |
---|
| 739 | /// label map and a functor which converts the label map values to |
---|
[192] | 740 | /// \c std::string. |
---|
[127] | 741 | template <typename Map, typename Converter> |
---|
[209] | 742 | DigraphReader& useNodes(const Map& map, |
---|
| 743 | const Converter& converter = Converter()) { |
---|
[127] | 744 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 745 | LEMON_ASSERT(!_use_nodes, "Multiple usage of useNodes() member"); |
---|
[127] | 746 | _use_nodes = true; |
---|
| 747 | for (NodeIt n(_digraph); n != INVALID; ++n) { |
---|
[209] | 748 | _node_index.insert(std::make_pair(converter(map[n]), n)); |
---|
[127] | 749 | } |
---|
| 750 | return *this; |
---|
| 751 | } |
---|
| 752 | |
---|
[156] | 753 | /// \brief Use previously constructed arc set |
---|
| 754 | /// |
---|
| 755 | /// Use previously constructed arc set, and specify the arc |
---|
| 756 | /// label map. |
---|
[127] | 757 | template <typename Map> |
---|
| 758 | DigraphReader& useArcs(const Map& map) { |
---|
| 759 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
---|
| 760 | LEMON_ASSERT(!_use_arcs, "Multiple usage of useArcs() member"); |
---|
| 761 | _use_arcs = true; |
---|
| 762 | _writer_bits::DefaultConverter<typename Map::Value> converter; |
---|
| 763 | for (ArcIt a(_digraph); a != INVALID; ++a) { |
---|
[209] | 764 | _arc_index.insert(std::make_pair(converter(map[a]), a)); |
---|
[127] | 765 | } |
---|
| 766 | return *this; |
---|
| 767 | } |
---|
| 768 | |
---|
[156] | 769 | /// \brief Use previously constructed arc set |
---|
| 770 | /// |
---|
| 771 | /// Use previously constructed arc set, and specify the arc |
---|
| 772 | /// label map and a functor which converts the label map values to |
---|
[192] | 773 | /// \c std::string. |
---|
[127] | 774 | template <typename Map, typename Converter> |
---|
[209] | 775 | DigraphReader& useArcs(const Map& map, |
---|
| 776 | const Converter& converter = Converter()) { |
---|
[127] | 777 | checkConcept<concepts::ReadMap<Arc, typename Map::Value>, Map>(); |
---|
[209] | 778 | LEMON_ASSERT(!_use_arcs, "Multiple usage of useArcs() member"); |
---|
[127] | 779 | _use_arcs = true; |
---|
| 780 | for (ArcIt a(_digraph); a != INVALID; ++a) { |
---|
[209] | 781 | _arc_index.insert(std::make_pair(converter(map[a]), a)); |
---|
[127] | 782 | } |
---|
| 783 | return *this; |
---|
| 784 | } |
---|
| 785 | |
---|
[188] | 786 | /// \brief Skips the reading of node section |
---|
| 787 | /// |
---|
| 788 | /// Omit the reading of the node section. This implies that each node |
---|
[192] | 789 | /// map reading rule will be abandoned, and the nodes of the graph |
---|
[188] | 790 | /// will not be constructed, which usually cause that the arc set |
---|
[192] | 791 | /// could not be read due to lack of node name resolving. |
---|
| 792 | /// Therefore \c skipArcs() function should also be used, or |
---|
| 793 | /// \c useNodes() should be used to specify the label of the nodes. |
---|
[188] | 794 | DigraphReader& skipNodes() { |
---|
[209] | 795 | LEMON_ASSERT(!_skip_nodes, "Skip nodes already set"); |
---|
[188] | 796 | _skip_nodes = true; |
---|
| 797 | return *this; |
---|
| 798 | } |
---|
| 799 | |
---|
| 800 | /// \brief Skips the reading of arc section |
---|
| 801 | /// |
---|
| 802 | /// Omit the reading of the arc section. This implies that each arc |
---|
[192] | 803 | /// map reading rule will be abandoned, and the arcs of the graph |
---|
[188] | 804 | /// will not be constructed. |
---|
| 805 | DigraphReader& skipArcs() { |
---|
[209] | 806 | LEMON_ASSERT(!_skip_arcs, "Skip arcs already set"); |
---|
[188] | 807 | _skip_arcs = true; |
---|
| 808 | return *this; |
---|
| 809 | } |
---|
| 810 | |
---|
[156] | 811 | /// @} |
---|
| 812 | |
---|
[127] | 813 | private: |
---|
| 814 | |
---|
| 815 | bool readLine() { |
---|
| 816 | std::string str; |
---|
| 817 | while(++line_num, std::getline(*_is, str)) { |
---|
[209] | 818 | line.clear(); line.str(str); |
---|
| 819 | char c; |
---|
| 820 | if (line >> std::ws >> c && c != '#') { |
---|
| 821 | line.putback(c); |
---|
| 822 | return true; |
---|
| 823 | } |
---|
[127] | 824 | } |
---|
| 825 | return false; |
---|
| 826 | } |
---|
| 827 | |
---|
| 828 | bool readSuccess() { |
---|
| 829 | return static_cast<bool>(*_is); |
---|
| 830 | } |
---|
[209] | 831 | |
---|
[127] | 832 | void skipSection() { |
---|
| 833 | char c; |
---|
| 834 | while (readSuccess() && line >> c && c != '@') { |
---|
[209] | 835 | readLine(); |
---|
[127] | 836 | } |
---|
| 837 | line.putback(c); |
---|
| 838 | } |
---|
| 839 | |
---|
| 840 | void readNodes() { |
---|
| 841 | |
---|
| 842 | std::vector<int> map_index(_node_maps.size()); |
---|
| 843 | int map_num, label_index; |
---|
| 844 | |
---|
[186] | 845 | char c; |
---|
| 846 | if (!readLine() || !(line >> c) || c == '@') { |
---|
[209] | 847 | if (readSuccess() && line) line.putback(c); |
---|
| 848 | if (!_node_maps.empty()) |
---|
| 849 | throw DataFormatError("Cannot find map names"); |
---|
| 850 | return; |
---|
[186] | 851 | } |
---|
| 852 | line.putback(c); |
---|
| 853 | |
---|
[127] | 854 | { |
---|
[209] | 855 | std::map<std::string, int> maps; |
---|
| 856 | |
---|
| 857 | std::string map; |
---|
| 858 | int index = 0; |
---|
| 859 | while (_reader_bits::readToken(line, map)) { |
---|
| 860 | if (maps.find(map) != maps.end()) { |
---|
| 861 | std::ostringstream msg; |
---|
| 862 | msg << "Multiple occurence of node map: " << map; |
---|
| 863 | throw DataFormatError(msg.str().c_str()); |
---|
| 864 | } |
---|
| 865 | maps.insert(std::make_pair(map, index)); |
---|
| 866 | ++index; |
---|
| 867 | } |
---|
| 868 | |
---|
| 869 | for (int i = 0; i < static_cast<int>(_node_maps.size()); ++i) { |
---|
| 870 | std::map<std::string, int>::iterator jt = |
---|
| 871 | maps.find(_node_maps[i].first); |
---|
| 872 | if (jt == maps.end()) { |
---|
| 873 | std::ostringstream msg; |
---|
| 874 | msg << "Map not found in file: " << _node_maps[i].first; |
---|
| 875 | throw DataFormatError(msg.str().c_str()); |
---|
| 876 | } |
---|
| 877 | map_index[i] = jt->second; |
---|
| 878 | } |
---|
| 879 | |
---|
| 880 | { |
---|
| 881 | std::map<std::string, int>::iterator jt = maps.find("label"); |
---|
| 882 | if (jt != maps.end()) { |
---|
| 883 | label_index = jt->second; |
---|
| 884 | } else { |
---|
| 885 | label_index = -1; |
---|
| 886 | } |
---|
| 887 | } |
---|
| 888 | map_num = maps.size(); |
---|
[127] | 889 | } |
---|
| 890 | |
---|
| 891 | while (readLine() && line >> c && c != '@') { |
---|
[209] | 892 | line.putback(c); |
---|
| 893 | |
---|
| 894 | std::vector<std::string> tokens(map_num); |
---|
| 895 | for (int i = 0; i < map_num; ++i) { |
---|
| 896 | if (!_reader_bits::readToken(line, tokens[i])) { |
---|
| 897 | std::ostringstream msg; |
---|
| 898 | msg << "Column not found (" << i + 1 << ")"; |
---|
| 899 | throw DataFormatError(msg.str().c_str()); |
---|
| 900 | } |
---|
| 901 | } |
---|
| 902 | if (line >> std::ws >> c) |
---|
| 903 | throw DataFormatError("Extra character on the end of line"); |
---|
| 904 | |
---|
| 905 | Node n; |
---|
| 906 | if (!_use_nodes) { |
---|
| 907 | n = _digraph.addNode(); |
---|
| 908 | if (label_index != -1) |
---|
| 909 | _node_index.insert(std::make_pair(tokens[label_index], n)); |
---|
| 910 | } else { |
---|
| 911 | if (label_index == -1) |
---|
| 912 | throw DataFormatError("Label map not found in file"); |
---|
| 913 | typename std::map<std::string, Node>::iterator it = |
---|
| 914 | _node_index.find(tokens[label_index]); |
---|
| 915 | if (it == _node_index.end()) { |
---|
| 916 | std::ostringstream msg; |
---|
| 917 | msg << "Node with label not found: " << tokens[label_index]; |
---|
| 918 | throw DataFormatError(msg.str().c_str()); |
---|
| 919 | } |
---|
| 920 | n = it->second; |
---|
| 921 | } |
---|
| 922 | |
---|
| 923 | for (int i = 0; i < static_cast<int>(_node_maps.size()); ++i) { |
---|
| 924 | _node_maps[i].second->set(n, tokens[map_index[i]]); |
---|
| 925 | } |
---|
[127] | 926 | |
---|
| 927 | } |
---|
| 928 | if (readSuccess()) { |
---|
[209] | 929 | line.putback(c); |
---|
[127] | 930 | } |
---|
| 931 | } |
---|
| 932 | |
---|
| 933 | void readArcs() { |
---|
| 934 | |
---|
| 935 | std::vector<int> map_index(_arc_maps.size()); |
---|
| 936 | int map_num, label_index; |
---|
| 937 | |
---|
[186] | 938 | char c; |
---|
| 939 | if (!readLine() || !(line >> c) || c == '@') { |
---|
[209] | 940 | if (readSuccess() && line) line.putback(c); |
---|
| 941 | if (!_arc_maps.empty()) |
---|
| 942 | throw DataFormatError("Cannot find map names"); |
---|
| 943 | return; |
---|
[186] | 944 | } |
---|
| 945 | line.putback(c); |
---|
[209] | 946 | |
---|
[127] | 947 | { |
---|
[209] | 948 | std::map<std::string, int> maps; |
---|
| 949 | |
---|
| 950 | std::string map; |
---|
| 951 | int index = 0; |
---|
| 952 | while (_reader_bits::readToken(line, map)) { |
---|
| 953 | if (maps.find(map) != maps.end()) { |
---|
| 954 | std::ostringstream msg; |
---|
| 955 | msg << "Multiple occurence of arc map: " << map; |
---|
| 956 | throw DataFormatError(msg.str().c_str()); |
---|
| 957 | } |
---|
| 958 | maps.insert(std::make_pair(map, index)); |
---|
| 959 | ++index; |
---|
| 960 | } |
---|
| 961 | |
---|
| 962 | for (int i = 0; i < static_cast<int>(_arc_maps.size()); ++i) { |
---|
| 963 | std::map<std::string, int>::iterator jt = |
---|
| 964 | maps.find(_arc_maps[i].first); |
---|
| 965 | if (jt == maps.end()) { |
---|
| 966 | std::ostringstream msg; |
---|
| 967 | msg << "Map not found in file: " << _arc_maps[i].first; |
---|
| 968 | throw DataFormatError(msg.str().c_str()); |
---|
| 969 | } |
---|
| 970 | map_index[i] = jt->second; |
---|
| 971 | } |
---|
| 972 | |
---|
| 973 | { |
---|
| 974 | std::map<std::string, int>::iterator jt = maps.find("label"); |
---|
| 975 | if (jt != maps.end()) { |
---|
| 976 | label_index = jt->second; |
---|
| 977 | } else { |
---|
| 978 | label_index = -1; |
---|
| 979 | } |
---|
| 980 | } |
---|
| 981 | map_num = maps.size(); |
---|
[127] | 982 | } |
---|
| 983 | |
---|
| 984 | while (readLine() && line >> c && c != '@') { |
---|
[209] | 985 | line.putback(c); |
---|
| 986 | |
---|
| 987 | std::string source_token; |
---|
| 988 | std::string target_token; |
---|
| 989 | |
---|
| 990 | if (!_reader_bits::readToken(line, source_token)) |
---|
| 991 | throw DataFormatError("Source not found"); |
---|
| 992 | |
---|
| 993 | if (!_reader_bits::readToken(line, target_token)) |
---|
| 994 | throw DataFormatError("Target not found"); |
---|
| 995 | |
---|
| 996 | std::vector<std::string> tokens(map_num); |
---|
| 997 | for (int i = 0; i < map_num; ++i) { |
---|
| 998 | if (!_reader_bits::readToken(line, tokens[i])) { |
---|
| 999 | std::ostringstream msg; |
---|
| 1000 | msg << "Column not found (" << i + 1 << ")"; |
---|
| 1001 | throw DataFormatError(msg.str().c_str()); |
---|
| 1002 | } |
---|
| 1003 | } |
---|
| 1004 | if (line >> std::ws >> c) |
---|
| 1005 | throw DataFormatError("Extra character on the end of line"); |
---|
| 1006 | |
---|
| 1007 | Arc a; |
---|
| 1008 | if (!_use_arcs) { |
---|
[127] | 1009 | |
---|
| 1010 | typename NodeIndex::iterator it; |
---|
[209] | 1011 | |
---|
[127] | 1012 | it = _node_index.find(source_token); |
---|
| 1013 | if (it == _node_index.end()) { |
---|
| 1014 | std::ostringstream msg; |
---|
| 1015 | msg << "Item not found: " << source_token; |
---|
| 1016 | throw DataFormatError(msg.str().c_str()); |
---|
| 1017 | } |
---|
| 1018 | Node source = it->second; |
---|
| 1019 | |
---|
| 1020 | it = _node_index.find(target_token); |
---|
[209] | 1021 | if (it == _node_index.end()) { |
---|
| 1022 | std::ostringstream msg; |
---|
[127] | 1023 | msg << "Item not found: " << target_token; |
---|
| 1024 | throw DataFormatError(msg.str().c_str()); |
---|
[209] | 1025 | } |
---|
| 1026 | Node target = it->second; |
---|
| 1027 | |
---|
| 1028 | a = _digraph.addArc(source, target); |
---|
| 1029 | if (label_index != -1) |
---|
| 1030 | _arc_index.insert(std::make_pair(tokens[label_index], a)); |
---|
| 1031 | } else { |
---|
| 1032 | if (label_index == -1) |
---|
| 1033 | throw DataFormatError("Label map not found in file"); |
---|
| 1034 | typename std::map<std::string, Arc>::iterator it = |
---|
| 1035 | _arc_index.find(tokens[label_index]); |
---|
| 1036 | if (it == _arc_index.end()) { |
---|
| 1037 | std::ostringstream msg; |
---|
| 1038 | msg << "Arc with label not found: " << tokens[label_index]; |
---|
| 1039 | throw DataFormatError(msg.str().c_str()); |
---|
| 1040 | } |
---|
| 1041 | a = it->second; |
---|
| 1042 | } |
---|
| 1043 | |
---|
| 1044 | for (int i = 0; i < static_cast<int>(_arc_maps.size()); ++i) { |
---|
| 1045 | _arc_maps[i].second->set(a, tokens[map_index[i]]); |
---|
| 1046 | } |
---|
[127] | 1047 | |
---|
| 1048 | } |
---|
| 1049 | if (readSuccess()) { |
---|
[209] | 1050 | line.putback(c); |
---|
[127] | 1051 | } |
---|
| 1052 | } |
---|
| 1053 | |
---|
| 1054 | void readAttributes() { |
---|
| 1055 | |
---|
| 1056 | std::set<std::string> read_attr; |
---|
| 1057 | |
---|
| 1058 | char c; |
---|
| 1059 | while (readLine() && line >> c && c != '@') { |
---|
[209] | 1060 | line.putback(c); |
---|
| 1061 | |
---|
| 1062 | std::string attr, token; |
---|
| 1063 | if (!_reader_bits::readToken(line, attr)) |
---|
| 1064 | throw DataFormatError("Attribute name not found"); |
---|
| 1065 | if (!_reader_bits::readToken(line, token)) |
---|
| 1066 | throw DataFormatError("Attribute value not found"); |
---|
| 1067 | if (line >> c) |
---|
| 1068 | throw DataFormatError("Extra character on the end of line"); |
---|
| 1069 | |
---|
| 1070 | { |
---|
| 1071 | std::set<std::string>::iterator it = read_attr.find(attr); |
---|
| 1072 | if (it != read_attr.end()) { |
---|
| 1073 | std::ostringstream msg; |
---|
| 1074 | msg << "Multiple occurence of attribute " << attr; |
---|
| 1075 | throw DataFormatError(msg.str().c_str()); |
---|
| 1076 | } |
---|
| 1077 | read_attr.insert(attr); |
---|
| 1078 | } |
---|
| 1079 | |
---|
| 1080 | { |
---|
| 1081 | typename Attributes::iterator it = _attributes.lower_bound(attr); |
---|
| 1082 | while (it != _attributes.end() && it->first == attr) { |
---|
| 1083 | it->second->set(token); |
---|
| 1084 | ++it; |
---|
| 1085 | } |
---|
| 1086 | } |
---|
[127] | 1087 | |
---|
| 1088 | } |
---|
| 1089 | if (readSuccess()) { |
---|
[209] | 1090 | line.putback(c); |
---|
[127] | 1091 | } |
---|
| 1092 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
[209] | 1093 | it != _attributes.end(); ++it) { |
---|
| 1094 | if (read_attr.find(it->first) == read_attr.end()) { |
---|
| 1095 | std::ostringstream msg; |
---|
| 1096 | msg << "Attribute not found in file: " << it->first; |
---|
| 1097 | throw DataFormatError(msg.str().c_str()); |
---|
| 1098 | } |
---|
[127] | 1099 | } |
---|
| 1100 | } |
---|
| 1101 | |
---|
| 1102 | public: |
---|
[156] | 1103 | |
---|
[209] | 1104 | /// \name Execution of the reader |
---|
[156] | 1105 | /// @{ |
---|
| 1106 | |
---|
| 1107 | /// \brief Start the batch processing |
---|
| 1108 | /// |
---|
| 1109 | /// This function starts the batch processing |
---|
[127] | 1110 | void run() { |
---|
| 1111 | LEMON_ASSERT(_is != 0, "This reader assigned to an other reader"); |
---|
[163] | 1112 | if (!*_is) { |
---|
[209] | 1113 | throw DataFormatError("Cannot find file"); |
---|
[163] | 1114 | } |
---|
[209] | 1115 | |
---|
[188] | 1116 | bool nodes_done = _skip_nodes; |
---|
| 1117 | bool arcs_done = _skip_arcs; |
---|
[127] | 1118 | bool attributes_done = false; |
---|
| 1119 | |
---|
[209] | 1120 | line_num = 0; |
---|
[127] | 1121 | readLine(); |
---|
[172] | 1122 | skipSection(); |
---|
[127] | 1123 | |
---|
| 1124 | while (readSuccess()) { |
---|
[209] | 1125 | try { |
---|
| 1126 | char c; |
---|
| 1127 | std::string section, caption; |
---|
| 1128 | line >> c; |
---|
| 1129 | _reader_bits::readToken(line, section); |
---|
| 1130 | _reader_bits::readToken(line, caption); |
---|
| 1131 | |
---|
| 1132 | if (line >> c) |
---|
| 1133 | throw DataFormatError("Extra character on the end of line"); |
---|
| 1134 | |
---|
| 1135 | if (section == "nodes" && !nodes_done) { |
---|
| 1136 | if (_nodes_caption.empty() || _nodes_caption == caption) { |
---|
| 1137 | readNodes(); |
---|
| 1138 | nodes_done = true; |
---|
| 1139 | } |
---|
| 1140 | } else if ((section == "arcs" || section == "edges") && |
---|
| 1141 | !arcs_done) { |
---|
| 1142 | if (_arcs_caption.empty() || _arcs_caption == caption) { |
---|
| 1143 | readArcs(); |
---|
| 1144 | arcs_done = true; |
---|
| 1145 | } |
---|
| 1146 | } else if (section == "attributes" && !attributes_done) { |
---|
| 1147 | if (_attributes_caption.empty() || _attributes_caption == caption) { |
---|
| 1148 | readAttributes(); |
---|
| 1149 | attributes_done = true; |
---|
| 1150 | } |
---|
| 1151 | } else { |
---|
| 1152 | readLine(); |
---|
| 1153 | skipSection(); |
---|
| 1154 | } |
---|
| 1155 | } catch (DataFormatError& error) { |
---|
| 1156 | error.line(line_num); |
---|
| 1157 | throw; |
---|
| 1158 | } |
---|
[127] | 1159 | } |
---|
| 1160 | |
---|
| 1161 | if (!nodes_done) { |
---|
[209] | 1162 | throw DataFormatError("Section @nodes not found"); |
---|
[127] | 1163 | } |
---|
| 1164 | |
---|
| 1165 | if (!arcs_done) { |
---|
[209] | 1166 | throw DataFormatError("Section @arcs not found"); |
---|
[127] | 1167 | } |
---|
| 1168 | |
---|
| 1169 | if (!attributes_done && !_attributes.empty()) { |
---|
[209] | 1170 | throw DataFormatError("Section @attributes not found"); |
---|
[127] | 1171 | } |
---|
| 1172 | |
---|
| 1173 | } |
---|
[156] | 1174 | |
---|
| 1175 | /// @} |
---|
[209] | 1176 | |
---|
[127] | 1177 | }; |
---|
| 1178 | |
---|
[192] | 1179 | /// \brief Return a \ref DigraphReader class |
---|
[209] | 1180 | /// |
---|
[192] | 1181 | /// This function just returns a \ref DigraphReader class. |
---|
[156] | 1182 | /// \relates DigraphReader |
---|
[127] | 1183 | template <typename Digraph> |
---|
[293] | 1184 | DigraphReader<Digraph> digraphReader(Digraph& digraph, |
---|
| 1185 | std::istream& is = std::cin) { |
---|
| 1186 | DigraphReader<Digraph> tmp(digraph, is); |
---|
[163] | 1187 | return tmp; |
---|
[127] | 1188 | } |
---|
| 1189 | |
---|
[192] | 1190 | /// \brief Return a \ref DigraphReader class |
---|
[209] | 1191 | /// |
---|
[192] | 1192 | /// This function just returns a \ref DigraphReader class. |
---|
[156] | 1193 | /// \relates DigraphReader |
---|
[127] | 1194 | template <typename Digraph> |
---|
[293] | 1195 | DigraphReader<Digraph> digraphReader(Digraph& digraph, |
---|
| 1196 | const std::string& fn) { |
---|
| 1197 | DigraphReader<Digraph> tmp(digraph, fn); |
---|
[163] | 1198 | return tmp; |
---|
[127] | 1199 | } |
---|
| 1200 | |
---|
[192] | 1201 | /// \brief Return a \ref DigraphReader class |
---|
[209] | 1202 | /// |
---|
[192] | 1203 | /// This function just returns a \ref DigraphReader class. |
---|
[156] | 1204 | /// \relates DigraphReader |
---|
[127] | 1205 | template <typename Digraph> |
---|
[293] | 1206 | DigraphReader<Digraph> digraphReader(Digraph& digraph, const char* fn) { |
---|
| 1207 | DigraphReader<Digraph> tmp(digraph, fn); |
---|
[163] | 1208 | return tmp; |
---|
[127] | 1209 | } |
---|
[165] | 1210 | |
---|
[190] | 1211 | template <typename Graph> |
---|
| 1212 | class GraphReader; |
---|
| 1213 | |
---|
| 1214 | template <typename Graph> |
---|
[293] | 1215 | GraphReader<Graph> graphReader(Graph& graph, |
---|
| 1216 | std::istream& is = std::cin); |
---|
[190] | 1217 | |
---|
| 1218 | template <typename Graph> |
---|
[293] | 1219 | GraphReader<Graph> graphReader(Graph& graph, const std::string& fn); |
---|
[190] | 1220 | |
---|
| 1221 | template <typename Graph> |
---|
[293] | 1222 | GraphReader<Graph> graphReader(Graph& graph, const char *fn); |
---|
[190] | 1223 | |
---|
[165] | 1224 | /// \ingroup lemon_io |
---|
[209] | 1225 | /// |
---|
[192] | 1226 | /// \brief \ref lgf-format "LGF" reader for undirected graphs |
---|
[165] | 1227 | /// |
---|
| 1228 | /// This utility reads an \ref lgf-format "LGF" file. |
---|
[192] | 1229 | /// |
---|
| 1230 | /// It can be used almost the same way as \c DigraphReader. |
---|
| 1231 | /// The only difference is that this class can handle edges and |
---|
| 1232 | /// edge maps as well as arcs and arc maps. |
---|
[201] | 1233 | /// |
---|
| 1234 | /// The columns in the \c \@edges (or \c \@arcs) section are the |
---|
| 1235 | /// edge maps. However, if there are two maps with the same name |
---|
| 1236 | /// prefixed with \c '+' and \c '-', then these can be read into an |
---|
| 1237 | /// arc map. Similarly, an attribute can be read into an arc, if |
---|
| 1238 | /// it's value is an edge label prefixed with \c '+' or \c '-'. |
---|
[165] | 1239 | template <typename _Graph> |
---|
| 1240 | class GraphReader { |
---|
| 1241 | public: |
---|
| 1242 | |
---|
| 1243 | typedef _Graph Graph; |
---|
| 1244 | TEMPLATE_GRAPH_TYPEDEFS(Graph); |
---|
[209] | 1245 | |
---|
[165] | 1246 | private: |
---|
| 1247 | |
---|
| 1248 | std::istream* _is; |
---|
| 1249 | bool local_is; |
---|
| 1250 | |
---|
| 1251 | Graph& _graph; |
---|
| 1252 | |
---|
| 1253 | std::string _nodes_caption; |
---|
| 1254 | std::string _edges_caption; |
---|
| 1255 | std::string _attributes_caption; |
---|
| 1256 | |
---|
| 1257 | typedef std::map<std::string, Node> NodeIndex; |
---|
| 1258 | NodeIndex _node_index; |
---|
| 1259 | typedef std::map<std::string, Edge> EdgeIndex; |
---|
| 1260 | EdgeIndex _edge_index; |
---|
[209] | 1261 | |
---|
| 1262 | typedef std::vector<std::pair<std::string, |
---|
| 1263 | _reader_bits::MapStorageBase<Node>*> > NodeMaps; |
---|
| 1264 | NodeMaps _node_maps; |
---|
[165] | 1265 | |
---|
| 1266 | typedef std::vector<std::pair<std::string, |
---|
| 1267 | _reader_bits::MapStorageBase<Edge>*> > EdgeMaps; |
---|
| 1268 | EdgeMaps _edge_maps; |
---|
| 1269 | |
---|
[209] | 1270 | typedef std::multimap<std::string, _reader_bits::ValueStorageBase*> |
---|
[165] | 1271 | Attributes; |
---|
| 1272 | Attributes _attributes; |
---|
| 1273 | |
---|
| 1274 | bool _use_nodes; |
---|
| 1275 | bool _use_edges; |
---|
| 1276 | |
---|
[188] | 1277 | bool _skip_nodes; |
---|
| 1278 | bool _skip_edges; |
---|
| 1279 | |
---|
[165] | 1280 | int line_num; |
---|
| 1281 | std::istringstream line; |
---|
| 1282 | |
---|
| 1283 | public: |
---|
| 1284 | |
---|
| 1285 | /// \brief Constructor |
---|
| 1286 | /// |
---|
[192] | 1287 | /// Construct an undirected graph reader, which reads from the given |
---|
[165] | 1288 | /// input stream. |
---|
[293] | 1289 | GraphReader(Graph& graph, std::istream& is = std::cin) |
---|
[165] | 1290 | : _is(&is), local_is(false), _graph(graph), |
---|
[209] | 1291 | _use_nodes(false), _use_edges(false), |
---|
| 1292 | _skip_nodes(false), _skip_edges(false) {} |
---|
[165] | 1293 | |
---|
| 1294 | /// \brief Constructor |
---|
| 1295 | /// |
---|
[192] | 1296 | /// Construct an undirected graph reader, which reads from the given |
---|
[165] | 1297 | /// file. |
---|
[293] | 1298 | GraphReader(Graph& graph, const std::string& fn) |
---|
[165] | 1299 | : _is(new std::ifstream(fn.c_str())), local_is(true), _graph(graph), |
---|
[212] | 1300 | _use_nodes(false), _use_edges(false), |
---|
[209] | 1301 | _skip_nodes(false), _skip_edges(false) {} |
---|
| 1302 | |
---|
[165] | 1303 | /// \brief Constructor |
---|
| 1304 | /// |
---|
[192] | 1305 | /// Construct an undirected graph reader, which reads from the given |
---|
[165] | 1306 | /// file. |
---|
[293] | 1307 | GraphReader(Graph& graph, const char* fn) |
---|
[165] | 1308 | : _is(new std::ifstream(fn)), local_is(true), _graph(graph), |
---|
[212] | 1309 | _use_nodes(false), _use_edges(false), |
---|
[209] | 1310 | _skip_nodes(false), _skip_edges(false) {} |
---|
[165] | 1311 | |
---|
| 1312 | /// \brief Destructor |
---|
| 1313 | ~GraphReader() { |
---|
[209] | 1314 | for (typename NodeMaps::iterator it = _node_maps.begin(); |
---|
| 1315 | it != _node_maps.end(); ++it) { |
---|
| 1316 | delete it->second; |
---|
[165] | 1317 | } |
---|
| 1318 | |
---|
[209] | 1319 | for (typename EdgeMaps::iterator it = _edge_maps.begin(); |
---|
| 1320 | it != _edge_maps.end(); ++it) { |
---|
| 1321 | delete it->second; |
---|
[165] | 1322 | } |
---|
| 1323 | |
---|
[209] | 1324 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
| 1325 | it != _attributes.end(); ++it) { |
---|
| 1326 | delete it->second; |
---|
[165] | 1327 | } |
---|
| 1328 | |
---|
| 1329 | if (local_is) { |
---|
[209] | 1330 | delete _is; |
---|
[165] | 1331 | } |
---|
| 1332 | |
---|
| 1333 | } |
---|
| 1334 | |
---|
| 1335 | private: |
---|
[293] | 1336 | friend GraphReader<Graph> graphReader<>(Graph& graph, std::istream& is); |
---|
| 1337 | friend GraphReader<Graph> graphReader<>(Graph& graph, |
---|
| 1338 | const std::string& fn); |
---|
| 1339 | friend GraphReader<Graph> graphReader<>(Graph& graph, const char *fn); |
---|
[209] | 1340 | |
---|
| 1341 | GraphReader(GraphReader& other) |
---|
[190] | 1342 | : _is(other._is), local_is(other.local_is), _graph(other._graph), |
---|
[209] | 1343 | _use_nodes(other._use_nodes), _use_edges(other._use_edges), |
---|
| 1344 | _skip_nodes(other._skip_nodes), _skip_edges(other._skip_edges) { |
---|
[190] | 1345 | |
---|
| 1346 | other._is = 0; |
---|
| 1347 | other.local_is = false; |
---|
[209] | 1348 | |
---|
[190] | 1349 | _node_index.swap(other._node_index); |
---|
| 1350 | _edge_index.swap(other._edge_index); |
---|
| 1351 | |
---|
| 1352 | _node_maps.swap(other._node_maps); |
---|
| 1353 | _edge_maps.swap(other._edge_maps); |
---|
| 1354 | _attributes.swap(other._attributes); |
---|
| 1355 | |
---|
| 1356 | _nodes_caption = other._nodes_caption; |
---|
| 1357 | _edges_caption = other._edges_caption; |
---|
| 1358 | _attributes_caption = other._attributes_caption; |
---|
| 1359 | |
---|
| 1360 | } |
---|
| 1361 | |
---|
[165] | 1362 | GraphReader& operator=(const GraphReader&); |
---|
| 1363 | |
---|
| 1364 | public: |
---|
| 1365 | |
---|
| 1366 | /// \name Reading rules |
---|
| 1367 | /// @{ |
---|
[209] | 1368 | |
---|
[165] | 1369 | /// \brief Node map reading rule |
---|
| 1370 | /// |
---|
| 1371 | /// Add a node map reading rule to the reader. |
---|
| 1372 | template <typename Map> |
---|
| 1373 | GraphReader& nodeMap(const std::string& caption, Map& map) { |
---|
| 1374 | checkConcept<concepts::WriteMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 1375 | _reader_bits::MapStorageBase<Node>* storage = |
---|
| 1376 | new _reader_bits::MapStorage<Node, Map>(map); |
---|
[165] | 1377 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
| 1378 | return *this; |
---|
| 1379 | } |
---|
| 1380 | |
---|
| 1381 | /// \brief Node map reading rule |
---|
| 1382 | /// |
---|
| 1383 | /// Add a node map reading rule with specialized converter to the |
---|
| 1384 | /// reader. |
---|
| 1385 | template <typename Map, typename Converter> |
---|
[209] | 1386 | GraphReader& nodeMap(const std::string& caption, Map& map, |
---|
| 1387 | const Converter& converter = Converter()) { |
---|
[165] | 1388 | checkConcept<concepts::WriteMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 1389 | _reader_bits::MapStorageBase<Node>* storage = |
---|
| 1390 | new _reader_bits::MapStorage<Node, Map, Converter>(map, converter); |
---|
[165] | 1391 | _node_maps.push_back(std::make_pair(caption, storage)); |
---|
| 1392 | return *this; |
---|
| 1393 | } |
---|
| 1394 | |
---|
| 1395 | /// \brief Edge map reading rule |
---|
| 1396 | /// |
---|
| 1397 | /// Add an edge map reading rule to the reader. |
---|
| 1398 | template <typename Map> |
---|
| 1399 | GraphReader& edgeMap(const std::string& caption, Map& map) { |
---|
| 1400 | checkConcept<concepts::WriteMap<Edge, typename Map::Value>, Map>(); |
---|
[209] | 1401 | _reader_bits::MapStorageBase<Edge>* storage = |
---|
| 1402 | new _reader_bits::MapStorage<Edge, Map>(map); |
---|
[165] | 1403 | _edge_maps.push_back(std::make_pair(caption, storage)); |
---|
| 1404 | return *this; |
---|
| 1405 | } |
---|
| 1406 | |
---|
| 1407 | /// \brief Edge map reading rule |
---|
| 1408 | /// |
---|
| 1409 | /// Add an edge map reading rule with specialized converter to the |
---|
| 1410 | /// reader. |
---|
| 1411 | template <typename Map, typename Converter> |
---|
[209] | 1412 | GraphReader& edgeMap(const std::string& caption, Map& map, |
---|
| 1413 | const Converter& converter = Converter()) { |
---|
[165] | 1414 | checkConcept<concepts::WriteMap<Edge, typename Map::Value>, Map>(); |
---|
[209] | 1415 | _reader_bits::MapStorageBase<Edge>* storage = |
---|
| 1416 | new _reader_bits::MapStorage<Edge, Map, Converter>(map, converter); |
---|
[165] | 1417 | _edge_maps.push_back(std::make_pair(caption, storage)); |
---|
| 1418 | return *this; |
---|
| 1419 | } |
---|
| 1420 | |
---|
| 1421 | /// \brief Arc map reading rule |
---|
| 1422 | /// |
---|
| 1423 | /// Add an arc map reading rule to the reader. |
---|
| 1424 | template <typename Map> |
---|
| 1425 | GraphReader& arcMap(const std::string& caption, Map& map) { |
---|
| 1426 | checkConcept<concepts::WriteMap<Arc, typename Map::Value>, Map>(); |
---|
[209] | 1427 | _reader_bits::MapStorageBase<Edge>* forward_storage = |
---|
| 1428 | new _reader_bits::GraphArcMapStorage<Graph, true, Map>(_graph, map); |
---|
[165] | 1429 | _edge_maps.push_back(std::make_pair('+' + caption, forward_storage)); |
---|
[209] | 1430 | _reader_bits::MapStorageBase<Edge>* backward_storage = |
---|
| 1431 | new _reader_bits::GraphArcMapStorage<Graph, false, Map>(_graph, map); |
---|
[165] | 1432 | _edge_maps.push_back(std::make_pair('-' + caption, backward_storage)); |
---|
| 1433 | return *this; |
---|
| 1434 | } |
---|
| 1435 | |
---|
| 1436 | /// \brief Arc map reading rule |
---|
| 1437 | /// |
---|
| 1438 | /// Add an arc map reading rule with specialized converter to the |
---|
| 1439 | /// reader. |
---|
| 1440 | template <typename Map, typename Converter> |
---|
[209] | 1441 | GraphReader& arcMap(const std::string& caption, Map& map, |
---|
| 1442 | const Converter& converter = Converter()) { |
---|
[165] | 1443 | checkConcept<concepts::WriteMap<Arc, typename Map::Value>, Map>(); |
---|
[209] | 1444 | _reader_bits::MapStorageBase<Edge>* forward_storage = |
---|
| 1445 | new _reader_bits::GraphArcMapStorage<Graph, true, Map, Converter> |
---|
| 1446 | (_graph, map, converter); |
---|
[165] | 1447 | _edge_maps.push_back(std::make_pair('+' + caption, forward_storage)); |
---|
[209] | 1448 | _reader_bits::MapStorageBase<Edge>* backward_storage = |
---|
| 1449 | new _reader_bits::GraphArcMapStorage<Graph, false, Map, Converter> |
---|
| 1450 | (_graph, map, converter); |
---|
[165] | 1451 | _edge_maps.push_back(std::make_pair('-' + caption, backward_storage)); |
---|
| 1452 | return *this; |
---|
| 1453 | } |
---|
| 1454 | |
---|
| 1455 | /// \brief Attribute reading rule |
---|
| 1456 | /// |
---|
| 1457 | /// Add an attribute reading rule to the reader. |
---|
| 1458 | template <typename Value> |
---|
| 1459 | GraphReader& attribute(const std::string& caption, Value& value) { |
---|
[209] | 1460 | _reader_bits::ValueStorageBase* storage = |
---|
| 1461 | new _reader_bits::ValueStorage<Value>(value); |
---|
[165] | 1462 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 1463 | return *this; |
---|
| 1464 | } |
---|
| 1465 | |
---|
| 1466 | /// \brief Attribute reading rule |
---|
| 1467 | /// |
---|
| 1468 | /// Add an attribute reading rule with specialized converter to the |
---|
| 1469 | /// reader. |
---|
| 1470 | template <typename Value, typename Converter> |
---|
[209] | 1471 | GraphReader& attribute(const std::string& caption, Value& value, |
---|
| 1472 | const Converter& converter = Converter()) { |
---|
| 1473 | _reader_bits::ValueStorageBase* storage = |
---|
| 1474 | new _reader_bits::ValueStorage<Value, Converter>(value, converter); |
---|
[165] | 1475 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 1476 | return *this; |
---|
| 1477 | } |
---|
| 1478 | |
---|
| 1479 | /// \brief Node reading rule |
---|
| 1480 | /// |
---|
| 1481 | /// Add a node reading rule to reader. |
---|
| 1482 | GraphReader& node(const std::string& caption, Node& node) { |
---|
| 1483 | typedef _reader_bits::MapLookUpConverter<Node> Converter; |
---|
| 1484 | Converter converter(_node_index); |
---|
[209] | 1485 | _reader_bits::ValueStorageBase* storage = |
---|
| 1486 | new _reader_bits::ValueStorage<Node, Converter>(node, converter); |
---|
[165] | 1487 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 1488 | return *this; |
---|
| 1489 | } |
---|
| 1490 | |
---|
| 1491 | /// \brief Edge reading rule |
---|
| 1492 | /// |
---|
| 1493 | /// Add an edge reading rule to reader. |
---|
| 1494 | GraphReader& edge(const std::string& caption, Edge& edge) { |
---|
| 1495 | typedef _reader_bits::MapLookUpConverter<Edge> Converter; |
---|
| 1496 | Converter converter(_edge_index); |
---|
[209] | 1497 | _reader_bits::ValueStorageBase* storage = |
---|
| 1498 | new _reader_bits::ValueStorage<Edge, Converter>(edge, converter); |
---|
[165] | 1499 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 1500 | return *this; |
---|
| 1501 | } |
---|
| 1502 | |
---|
| 1503 | /// \brief Arc reading rule |
---|
| 1504 | /// |
---|
| 1505 | /// Add an arc reading rule to reader. |
---|
| 1506 | GraphReader& arc(const std::string& caption, Arc& arc) { |
---|
| 1507 | typedef _reader_bits::GraphArcLookUpConverter<Graph> Converter; |
---|
| 1508 | Converter converter(_graph, _edge_index); |
---|
[209] | 1509 | _reader_bits::ValueStorageBase* storage = |
---|
| 1510 | new _reader_bits::ValueStorage<Arc, Converter>(arc, converter); |
---|
[165] | 1511 | _attributes.insert(std::make_pair(caption, storage)); |
---|
| 1512 | return *this; |
---|
| 1513 | } |
---|
| 1514 | |
---|
| 1515 | /// @} |
---|
| 1516 | |
---|
| 1517 | /// \name Select section by name |
---|
| 1518 | /// @{ |
---|
| 1519 | |
---|
| 1520 | /// \brief Set \c \@nodes section to be read |
---|
| 1521 | /// |
---|
[192] | 1522 | /// Set \c \@nodes section to be read. |
---|
[165] | 1523 | GraphReader& nodes(const std::string& caption) { |
---|
| 1524 | _nodes_caption = caption; |
---|
| 1525 | return *this; |
---|
| 1526 | } |
---|
| 1527 | |
---|
| 1528 | /// \brief Set \c \@edges section to be read |
---|
| 1529 | /// |
---|
[192] | 1530 | /// Set \c \@edges section to be read. |
---|
[165] | 1531 | GraphReader& edges(const std::string& caption) { |
---|
| 1532 | _edges_caption = caption; |
---|
| 1533 | return *this; |
---|
| 1534 | } |
---|
| 1535 | |
---|
| 1536 | /// \brief Set \c \@attributes section to be read |
---|
| 1537 | /// |
---|
[192] | 1538 | /// Set \c \@attributes section to be read. |
---|
[165] | 1539 | GraphReader& attributes(const std::string& caption) { |
---|
| 1540 | _attributes_caption = caption; |
---|
| 1541 | return *this; |
---|
| 1542 | } |
---|
| 1543 | |
---|
| 1544 | /// @} |
---|
| 1545 | |
---|
| 1546 | /// \name Using previously constructed node or edge set |
---|
| 1547 | /// @{ |
---|
| 1548 | |
---|
| 1549 | /// \brief Use previously constructed node set |
---|
| 1550 | /// |
---|
| 1551 | /// Use previously constructed node set, and specify the node |
---|
| 1552 | /// label map. |
---|
| 1553 | template <typename Map> |
---|
| 1554 | GraphReader& useNodes(const Map& map) { |
---|
| 1555 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 1556 | LEMON_ASSERT(!_use_nodes, "Multiple usage of useNodes() member"); |
---|
[165] | 1557 | _use_nodes = true; |
---|
| 1558 | _writer_bits::DefaultConverter<typename Map::Value> converter; |
---|
| 1559 | for (NodeIt n(_graph); n != INVALID; ++n) { |
---|
[209] | 1560 | _node_index.insert(std::make_pair(converter(map[n]), n)); |
---|
[165] | 1561 | } |
---|
| 1562 | return *this; |
---|
| 1563 | } |
---|
| 1564 | |
---|
| 1565 | /// \brief Use previously constructed node set |
---|
| 1566 | /// |
---|
| 1567 | /// Use previously constructed node set, and specify the node |
---|
| 1568 | /// label map and a functor which converts the label map values to |
---|
[192] | 1569 | /// \c std::string. |
---|
[165] | 1570 | template <typename Map, typename Converter> |
---|
[209] | 1571 | GraphReader& useNodes(const Map& map, |
---|
| 1572 | const Converter& converter = Converter()) { |
---|
[165] | 1573 | checkConcept<concepts::ReadMap<Node, typename Map::Value>, Map>(); |
---|
[209] | 1574 | LEMON_ASSERT(!_use_nodes, "Multiple usage of useNodes() member"); |
---|
[165] | 1575 | _use_nodes = true; |
---|
| 1576 | for (NodeIt n(_graph); n != INVALID; ++n) { |
---|
[209] | 1577 | _node_index.insert(std::make_pair(converter(map[n]), n)); |
---|
[165] | 1578 | } |
---|
| 1579 | return *this; |
---|
| 1580 | } |
---|
| 1581 | |
---|
| 1582 | /// \brief Use previously constructed edge set |
---|
| 1583 | /// |
---|
| 1584 | /// Use previously constructed edge set, and specify the edge |
---|
| 1585 | /// label map. |
---|
| 1586 | template <typename Map> |
---|
| 1587 | GraphReader& useEdges(const Map& map) { |
---|
| 1588 | checkConcept<concepts::ReadMap<Edge, typename Map::Value>, Map>(); |
---|
| 1589 | LEMON_ASSERT(!_use_edges, "Multiple usage of useEdges() member"); |
---|
| 1590 | _use_edges = true; |
---|
| 1591 | _writer_bits::DefaultConverter<typename Map::Value> converter; |
---|
| 1592 | for (EdgeIt a(_graph); a != INVALID; ++a) { |
---|
[209] | 1593 | _edge_index.insert(std::make_pair(converter(map[a]), a)); |
---|
[165] | 1594 | } |
---|
| 1595 | return *this; |
---|
| 1596 | } |
---|
| 1597 | |
---|
| 1598 | /// \brief Use previously constructed edge set |
---|
| 1599 | /// |
---|
| 1600 | /// Use previously constructed edge set, and specify the edge |
---|
| 1601 | /// label map and a functor which converts the label map values to |
---|
[192] | 1602 | /// \c std::string. |
---|
[165] | 1603 | template <typename Map, typename Converter> |
---|
[209] | 1604 | GraphReader& useEdges(const Map& map, |
---|
| 1605 | const Converter& converter = Converter()) { |
---|
[165] | 1606 | checkConcept<concepts::ReadMap<Edge, typename Map::Value>, Map>(); |
---|
[209] | 1607 | LEMON_ASSERT(!_use_edges, "Multiple usage of useEdges() member"); |
---|
[165] | 1608 | _use_edges = true; |
---|
| 1609 | for (EdgeIt a(_graph); a != INVALID; ++a) { |
---|
[209] | 1610 | _edge_index.insert(std::make_pair(converter(map[a]), a)); |
---|
[165] | 1611 | } |
---|
| 1612 | return *this; |
---|
| 1613 | } |
---|
| 1614 | |
---|
[192] | 1615 | /// \brief Skip the reading of node section |
---|
[188] | 1616 | /// |
---|
| 1617 | /// Omit the reading of the node section. This implies that each node |
---|
[192] | 1618 | /// map reading rule will be abandoned, and the nodes of the graph |
---|
[188] | 1619 | /// will not be constructed, which usually cause that the edge set |
---|
| 1620 | /// could not be read due to lack of node name |
---|
[192] | 1621 | /// could not be read due to lack of node name resolving. |
---|
| 1622 | /// Therefore \c skipEdges() function should also be used, or |
---|
| 1623 | /// \c useNodes() should be used to specify the label of the nodes. |
---|
[188] | 1624 | GraphReader& skipNodes() { |
---|
[209] | 1625 | LEMON_ASSERT(!_skip_nodes, "Skip nodes already set"); |
---|
[188] | 1626 | _skip_nodes = true; |
---|
| 1627 | return *this; |
---|
| 1628 | } |
---|
| 1629 | |
---|
[192] | 1630 | /// \brief Skip the reading of edge section |
---|
[188] | 1631 | /// |
---|
| 1632 | /// Omit the reading of the edge section. This implies that each edge |
---|
[192] | 1633 | /// map reading rule will be abandoned, and the edges of the graph |
---|
[188] | 1634 | /// will not be constructed. |
---|
| 1635 | GraphReader& skipEdges() { |
---|
[209] | 1636 | LEMON_ASSERT(!_skip_edges, "Skip edges already set"); |
---|
[188] | 1637 | _skip_edges = true; |
---|
| 1638 | return *this; |
---|
| 1639 | } |
---|
| 1640 | |
---|
[165] | 1641 | /// @} |
---|
| 1642 | |
---|
| 1643 | private: |
---|
| 1644 | |
---|
| 1645 | bool readLine() { |
---|
| 1646 | std::string str; |
---|
| 1647 | while(++line_num, std::getline(*_is, str)) { |
---|
[209] | 1648 | line.clear(); line.str(str); |
---|
| 1649 | char c; |
---|
| 1650 | if (line >> std::ws >> c && c != '#') { |
---|
| 1651 | line.putback(c); |
---|
| 1652 | return true; |
---|
| 1653 | } |
---|
[165] | 1654 | } |
---|
| 1655 | return false; |
---|
| 1656 | } |
---|
| 1657 | |
---|
| 1658 | bool readSuccess() { |
---|
| 1659 | return static_cast<bool>(*_is); |
---|
| 1660 | } |
---|
[209] | 1661 | |
---|
[165] | 1662 | void skipSection() { |
---|
| 1663 | char c; |
---|
| 1664 | while (readSuccess() && line >> c && c != '@') { |
---|
[209] | 1665 | readLine(); |
---|
[165] | 1666 | } |
---|
| 1667 | line.putback(c); |
---|
| 1668 | } |
---|
| 1669 | |
---|
| 1670 | void readNodes() { |
---|
| 1671 | |
---|
| 1672 | std::vector<int> map_index(_node_maps.size()); |
---|
| 1673 | int map_num, label_index; |
---|
| 1674 | |
---|
[186] | 1675 | char c; |
---|
| 1676 | if (!readLine() || !(line >> c) || c == '@') { |
---|
[209] | 1677 | if (readSuccess() && line) line.putback(c); |
---|
| 1678 | if (!_node_maps.empty()) |
---|
| 1679 | throw DataFormatError("Cannot find map names"); |
---|
| 1680 | return; |
---|
[186] | 1681 | } |
---|
| 1682 | line.putback(c); |
---|
[209] | 1683 | |
---|
[165] | 1684 | { |
---|
[209] | 1685 | std::map<std::string, int> maps; |
---|
| 1686 | |
---|
| 1687 | std::string map; |
---|
| 1688 | int index = 0; |
---|
| 1689 | while (_reader_bits::readToken(line, map)) { |
---|
| 1690 | if (maps.find(map) != maps.end()) { |
---|
| 1691 | std::ostringstream msg; |
---|
| 1692 | msg << "Multiple occurence of node map: " << map; |
---|
| 1693 | throw DataFormatError(msg.str().c_str()); |
---|
| 1694 | } |
---|
| 1695 | maps.insert(std::make_pair(map, index)); |
---|
| 1696 | ++index; |
---|
| 1697 | } |
---|
| 1698 | |
---|
| 1699 | for (int i = 0; i < static_cast<int>(_node_maps.size()); ++i) { |
---|
| 1700 | std::map<std::string, int>::iterator jt = |
---|
| 1701 | maps.find(_node_maps[i].first); |
---|
| 1702 | if (jt == maps.end()) { |
---|
| 1703 | std::ostringstream msg; |
---|
| 1704 | msg << "Map not found in file: " << _node_maps[i].first; |
---|
| 1705 | throw DataFormatError(msg.str().c_str()); |
---|
| 1706 | } |
---|
| 1707 | map_index[i] = jt->second; |
---|
| 1708 | } |
---|
| 1709 | |
---|
| 1710 | { |
---|
| 1711 | std::map<std::string, int>::iterator jt = maps.find("label"); |
---|
| 1712 | if (jt != maps.end()) { |
---|
| 1713 | label_index = jt->second; |
---|
| 1714 | } else { |
---|
| 1715 | label_index = -1; |
---|
| 1716 | } |
---|
| 1717 | } |
---|
| 1718 | map_num = maps.size(); |
---|
[165] | 1719 | } |
---|
| 1720 | |
---|
| 1721 | while (readLine() && line >> c && c != '@') { |
---|
[209] | 1722 | line.putback(c); |
---|
| 1723 | |
---|
| 1724 | std::vector<std::string> tokens(map_num); |
---|
| 1725 | for (int i = 0; i < map_num; ++i) { |
---|
| 1726 | if (!_reader_bits::readToken(line, tokens[i])) { |
---|
| 1727 | std::ostringstream msg; |
---|
| 1728 | msg << "Column not found (" << i + 1 << ")"; |
---|
| 1729 | throw DataFormatError(msg.str().c_str()); |
---|
| 1730 | } |
---|
| 1731 | } |
---|
| 1732 | if (line >> std::ws >> c) |
---|
| 1733 | throw DataFormatError("Extra character on the end of line"); |
---|
| 1734 | |
---|
| 1735 | Node n; |
---|
| 1736 | if (!_use_nodes) { |
---|
| 1737 | n = _graph.addNode(); |
---|
| 1738 | if (label_index != -1) |
---|
| 1739 | _node_index.insert(std::make_pair(tokens[label_index], n)); |
---|
| 1740 | } else { |
---|
| 1741 | if (label_index == -1) |
---|
| 1742 | throw DataFormatError("Label map not found in file"); |
---|
| 1743 | typename std::map<std::string, Node>::iterator it = |
---|
| 1744 | _node_index.find(tokens[label_index]); |
---|
| 1745 | if (it == _node_index.end()) { |
---|
| 1746 | std::ostringstream msg; |
---|
| 1747 | msg << "Node with label not found: " << tokens[label_index]; |
---|
| 1748 | throw DataFormatError(msg.str().c_str()); |
---|
| 1749 | } |
---|
| 1750 | n = it->second; |
---|
| 1751 | } |
---|
| 1752 | |
---|
| 1753 | for (int i = 0; i < static_cast<int>(_node_maps.size()); ++i) { |
---|
| 1754 | _node_maps[i].second->set(n, tokens[map_index[i]]); |
---|
| 1755 | } |
---|
[165] | 1756 | |
---|
| 1757 | } |
---|
| 1758 | if (readSuccess()) { |
---|
[209] | 1759 | line.putback(c); |
---|
[165] | 1760 | } |
---|
| 1761 | } |
---|
| 1762 | |
---|
| 1763 | void readEdges() { |
---|
| 1764 | |
---|
| 1765 | std::vector<int> map_index(_edge_maps.size()); |
---|
| 1766 | int map_num, label_index; |
---|
| 1767 | |
---|
[186] | 1768 | char c; |
---|
| 1769 | if (!readLine() || !(line >> c) || c == '@') { |
---|
[209] | 1770 | if (readSuccess() && line) line.putback(c); |
---|
| 1771 | if (!_edge_maps.empty()) |
---|
| 1772 | throw DataFormatError("Cannot find map names"); |
---|
| 1773 | return; |
---|
[186] | 1774 | } |
---|
| 1775 | line.putback(c); |
---|
[209] | 1776 | |
---|
[165] | 1777 | { |
---|
[209] | 1778 | std::map<std::string, int> maps; |
---|
| 1779 | |
---|
| 1780 | std::string map; |
---|
| 1781 | int index = 0; |
---|
| 1782 | while (_reader_bits::readToken(line, map)) { |
---|
| 1783 | if (maps.find(map) != maps.end()) { |
---|
| 1784 | std::ostringstream msg; |
---|
| 1785 | msg << "Multiple occurence of edge map: " << map; |
---|
| 1786 | throw DataFormatError(msg.str().c_str()); |
---|
| 1787 | } |
---|
| 1788 | maps.insert(std::make_pair(map, index)); |
---|
| 1789 | ++index; |
---|
| 1790 | } |
---|
| 1791 | |
---|
| 1792 | for (int i = 0; i < static_cast<int>(_edge_maps.size()); ++i) { |
---|
| 1793 | std::map<std::string, int>::iterator jt = |
---|
| 1794 | maps.find(_edge_maps[i].first); |
---|
| 1795 | if (jt == maps.end()) { |
---|
| 1796 | std::ostringstream msg; |
---|
| 1797 | msg << "Map not found in file: " << _edge_maps[i].first; |
---|
| 1798 | throw DataFormatError(msg.str().c_str()); |
---|
| 1799 | } |
---|
| 1800 | map_index[i] = jt->second; |
---|
| 1801 | } |
---|
| 1802 | |
---|
| 1803 | { |
---|
| 1804 | std::map<std::string, int>::iterator jt = maps.find("label"); |
---|
| 1805 | if (jt != maps.end()) { |
---|
| 1806 | label_index = jt->second; |
---|
| 1807 | } else { |
---|
| 1808 | label_index = -1; |
---|
| 1809 | } |
---|
| 1810 | } |
---|
| 1811 | map_num = maps.size(); |
---|
[165] | 1812 | } |
---|
| 1813 | |
---|
| 1814 | while (readLine() && line >> c && c != '@') { |
---|
[209] | 1815 | line.putback(c); |
---|
| 1816 | |
---|
| 1817 | std::string source_token; |
---|
| 1818 | std::string target_token; |
---|
| 1819 | |
---|
| 1820 | if (!_reader_bits::readToken(line, source_token)) |
---|
| 1821 | throw DataFormatError("Node u not found"); |
---|
| 1822 | |
---|
| 1823 | if (!_reader_bits::readToken(line, target_token)) |
---|
| 1824 | throw DataFormatError("Node v not found"); |
---|
| 1825 | |
---|
| 1826 | std::vector<std::string> tokens(map_num); |
---|
| 1827 | for (int i = 0; i < map_num; ++i) { |
---|
| 1828 | if (!_reader_bits::readToken(line, tokens[i])) { |
---|
| 1829 | std::ostringstream msg; |
---|
| 1830 | msg << "Column not found (" << i + 1 << ")"; |
---|
| 1831 | throw DataFormatError(msg.str().c_str()); |
---|
| 1832 | } |
---|
| 1833 | } |
---|
| 1834 | if (line >> std::ws >> c) |
---|
| 1835 | throw DataFormatError("Extra character on the end of line"); |
---|
| 1836 | |
---|
| 1837 | Edge e; |
---|
| 1838 | if (!_use_edges) { |
---|
[165] | 1839 | |
---|
| 1840 | typename NodeIndex::iterator it; |
---|
[209] | 1841 | |
---|
[165] | 1842 | it = _node_index.find(source_token); |
---|
| 1843 | if (it == _node_index.end()) { |
---|
| 1844 | std::ostringstream msg; |
---|
| 1845 | msg << "Item not found: " << source_token; |
---|
| 1846 | throw DataFormatError(msg.str().c_str()); |
---|
| 1847 | } |
---|
| 1848 | Node source = it->second; |
---|
| 1849 | |
---|
| 1850 | it = _node_index.find(target_token); |
---|
[209] | 1851 | if (it == _node_index.end()) { |
---|
| 1852 | std::ostringstream msg; |
---|
[165] | 1853 | msg << "Item not found: " << target_token; |
---|
| 1854 | throw DataFormatError(msg.str().c_str()); |
---|
[209] | 1855 | } |
---|
| 1856 | Node target = it->second; |
---|
| 1857 | |
---|
| 1858 | e = _graph.addEdge(source, target); |
---|
| 1859 | if (label_index != -1) |
---|
| 1860 | _edge_index.insert(std::make_pair(tokens[label_index], e)); |
---|
| 1861 | } else { |
---|
| 1862 | if (label_index == -1) |
---|
| 1863 | throw DataFormatError("Label map not found in file"); |
---|
| 1864 | typename std::map<std::string, Edge>::iterator it = |
---|
| 1865 | _edge_index.find(tokens[label_index]); |
---|
| 1866 | if (it == _edge_index.end()) { |
---|
| 1867 | std::ostringstream msg; |
---|
| 1868 | msg << "Edge with label not found: " << tokens[label_index]; |
---|
| 1869 | throw DataFormatError(msg.str().c_str()); |
---|
| 1870 | } |
---|
| 1871 | e = it->second; |
---|
| 1872 | } |
---|
| 1873 | |
---|
| 1874 | for (int i = 0; i < static_cast<int>(_edge_maps.size()); ++i) { |
---|
| 1875 | _edge_maps[i].second->set(e, tokens[map_index[i]]); |
---|
| 1876 | } |
---|
[165] | 1877 | |
---|
| 1878 | } |
---|
| 1879 | if (readSuccess()) { |
---|
[209] | 1880 | line.putback(c); |
---|
[165] | 1881 | } |
---|
| 1882 | } |
---|
| 1883 | |
---|
| 1884 | void readAttributes() { |
---|
| 1885 | |
---|
| 1886 | std::set<std::string> read_attr; |
---|
| 1887 | |
---|
| 1888 | char c; |
---|
| 1889 | while (readLine() && line >> c && c != '@') { |
---|
[209] | 1890 | line.putback(c); |
---|
| 1891 | |
---|
| 1892 | std::string attr, token; |
---|
| 1893 | if (!_reader_bits::readToken(line, attr)) |
---|
| 1894 | throw DataFormatError("Attribute name not found"); |
---|
| 1895 | if (!_reader_bits::readToken(line, token)) |
---|
| 1896 | throw DataFormatError("Attribute value not found"); |
---|
| 1897 | if (line >> c) |
---|
| 1898 | throw DataFormatError("Extra character on the end of line"); |
---|
| 1899 | |
---|
| 1900 | { |
---|
| 1901 | std::set<std::string>::iterator it = read_attr.find(attr); |
---|
| 1902 | if (it != read_attr.end()) { |
---|
| 1903 | std::ostringstream msg; |
---|
| 1904 | msg << "Multiple occurence of attribute " << attr; |
---|
| 1905 | throw DataFormatError(msg.str().c_str()); |
---|
| 1906 | } |
---|
| 1907 | read_attr.insert(attr); |
---|
| 1908 | } |
---|
| 1909 | |
---|
| 1910 | { |
---|
| 1911 | typename Attributes::iterator it = _attributes.lower_bound(attr); |
---|
| 1912 | while (it != _attributes.end() && it->first == attr) { |
---|
| 1913 | it->second->set(token); |
---|
| 1914 | ++it; |
---|
| 1915 | } |
---|
| 1916 | } |
---|
[165] | 1917 | |
---|
| 1918 | } |
---|
| 1919 | if (readSuccess()) { |
---|
[209] | 1920 | line.putback(c); |
---|
[165] | 1921 | } |
---|
| 1922 | for (typename Attributes::iterator it = _attributes.begin(); |
---|
[209] | 1923 | it != _attributes.end(); ++it) { |
---|
| 1924 | if (read_attr.find(it->first) == read_attr.end()) { |
---|
| 1925 | std::ostringstream msg; |
---|
| 1926 | msg << "Attribute not found in file: " << it->first; |
---|
| 1927 | throw DataFormatError(msg.str().c_str()); |
---|
| 1928 | } |
---|
[165] | 1929 | } |
---|
| 1930 | } |
---|
| 1931 | |
---|
| 1932 | public: |
---|
| 1933 | |
---|
[209] | 1934 | /// \name Execution of the reader |
---|
[165] | 1935 | /// @{ |
---|
| 1936 | |
---|
| 1937 | /// \brief Start the batch processing |
---|
| 1938 | /// |
---|
| 1939 | /// This function starts the batch processing |
---|
| 1940 | void run() { |
---|
[209] | 1941 | |
---|
[165] | 1942 | LEMON_ASSERT(_is != 0, "This reader assigned to an other reader"); |
---|
[209] | 1943 | |
---|
[188] | 1944 | bool nodes_done = _skip_nodes; |
---|
| 1945 | bool edges_done = _skip_edges; |
---|
[165] | 1946 | bool attributes_done = false; |
---|
| 1947 | |
---|
[209] | 1948 | line_num = 0; |
---|
[165] | 1949 | readLine(); |
---|
[172] | 1950 | skipSection(); |
---|
[165] | 1951 | |
---|
| 1952 | while (readSuccess()) { |
---|
[209] | 1953 | try { |
---|
| 1954 | char c; |
---|
| 1955 | std::string section, caption; |
---|
| 1956 | line >> c; |
---|
| 1957 | _reader_bits::readToken(line, section); |
---|
| 1958 | _reader_bits::readToken(line, caption); |
---|
| 1959 | |
---|
| 1960 | if (line >> c) |
---|
| 1961 | throw DataFormatError("Extra character on the end of line"); |
---|
| 1962 | |
---|
| 1963 | if (section == "nodes" && !nodes_done) { |
---|
| 1964 | if (_nodes_caption.empty() || _nodes_caption == caption) { |
---|
| 1965 | readNodes(); |
---|
| 1966 | nodes_done = true; |
---|
| 1967 | } |
---|
| 1968 | } else if ((section == "edges" || section == "arcs") && |
---|
| 1969 | !edges_done) { |
---|
| 1970 | if (_edges_caption.empty() || _edges_caption == caption) { |
---|
| 1971 | readEdges(); |
---|
| 1972 | edges_done = true; |
---|
| 1973 | } |
---|
| 1974 | } else if (section == "attributes" && !attributes_done) { |
---|
| 1975 | if (_attributes_caption.empty() || _attributes_caption == caption) { |
---|
| 1976 | readAttributes(); |
---|
| 1977 | attributes_done = true; |
---|
| 1978 | } |
---|
| 1979 | } else { |
---|
| 1980 | readLine(); |
---|
| 1981 | skipSection(); |
---|
| 1982 | } |
---|
| 1983 | } catch (DataFormatError& error) { |
---|
| 1984 | error.line(line_num); |
---|
| 1985 | throw; |
---|
| 1986 | } |
---|
[165] | 1987 | } |
---|
| 1988 | |
---|
| 1989 | if (!nodes_done) { |
---|
[209] | 1990 | throw DataFormatError("Section @nodes not found"); |
---|
[165] | 1991 | } |
---|
| 1992 | |
---|
| 1993 | if (!edges_done) { |
---|
[209] | 1994 | throw DataFormatError("Section @edges not found"); |
---|
[165] | 1995 | } |
---|
| 1996 | |
---|
| 1997 | if (!attributes_done && !_attributes.empty()) { |
---|
[209] | 1998 | throw DataFormatError("Section @attributes not found"); |
---|
[165] | 1999 | } |
---|
| 2000 | |
---|
| 2001 | } |
---|
| 2002 | |
---|
| 2003 | /// @} |
---|
[209] | 2004 | |
---|
[165] | 2005 | }; |
---|
| 2006 | |
---|
[192] | 2007 | /// \brief Return a \ref GraphReader class |
---|
[209] | 2008 | /// |
---|
[192] | 2009 | /// This function just returns a \ref GraphReader class. |
---|
[165] | 2010 | /// \relates GraphReader |
---|
| 2011 | template <typename Graph> |
---|
[293] | 2012 | GraphReader<Graph> graphReader(Graph& graph, std::istream& is = std::cin) { |
---|
| 2013 | GraphReader<Graph> tmp(graph, is); |
---|
[165] | 2014 | return tmp; |
---|
| 2015 | } |
---|
| 2016 | |
---|
[192] | 2017 | /// \brief Return a \ref GraphReader class |
---|
[209] | 2018 | /// |
---|
[192] | 2019 | /// This function just returns a \ref GraphReader class. |
---|
[165] | 2020 | /// \relates GraphReader |
---|
| 2021 | template <typename Graph> |
---|
[293] | 2022 | GraphReader<Graph> graphReader(Graph& graph, const std::string& fn) { |
---|
| 2023 | GraphReader<Graph> tmp(graph, fn); |
---|
[165] | 2024 | return tmp; |
---|
| 2025 | } |
---|
| 2026 | |
---|
[192] | 2027 | /// \brief Return a \ref GraphReader class |
---|
[209] | 2028 | /// |
---|
[192] | 2029 | /// This function just returns a \ref GraphReader class. |
---|
[165] | 2030 | /// \relates GraphReader |
---|
| 2031 | template <typename Graph> |
---|
[293] | 2032 | GraphReader<Graph> graphReader(Graph& graph, const char* fn) { |
---|
| 2033 | GraphReader<Graph> tmp(graph, fn); |
---|
[165] | 2034 | return tmp; |
---|
| 2035 | } |
---|
[173] | 2036 | |
---|
[190] | 2037 | class SectionReader; |
---|
| 2038 | |
---|
| 2039 | SectionReader sectionReader(std::istream& is); |
---|
| 2040 | SectionReader sectionReader(const std::string& fn); |
---|
| 2041 | SectionReader sectionReader(const char* fn); |
---|
[209] | 2042 | |
---|
[192] | 2043 | /// \ingroup lemon_io |
---|
| 2044 | /// |
---|
[189] | 2045 | /// \brief Section reader class |
---|
| 2046 | /// |
---|
[209] | 2047 | /// In the \ref lgf-format "LGF" file extra sections can be placed, |
---|
[192] | 2048 | /// which contain any data in arbitrary format. Such sections can be |
---|
[209] | 2049 | /// read with this class. A reading rule can be added to the class |
---|
[192] | 2050 | /// with two different functions. With the \c sectionLines() function a |
---|
| 2051 | /// functor can process the section line-by-line, while with the \c |
---|
[189] | 2052 | /// sectionStream() member the section can be read from an input |
---|
| 2053 | /// stream. |
---|
| 2054 | class SectionReader { |
---|
| 2055 | private: |
---|
[209] | 2056 | |
---|
[189] | 2057 | std::istream* _is; |
---|
| 2058 | bool local_is; |
---|
| 2059 | |
---|
| 2060 | typedef std::map<std::string, _reader_bits::Section*> Sections; |
---|
| 2061 | Sections _sections; |
---|
| 2062 | |
---|
| 2063 | int line_num; |
---|
| 2064 | std::istringstream line; |
---|
| 2065 | |
---|
| 2066 | public: |
---|
| 2067 | |
---|
| 2068 | /// \brief Constructor |
---|
| 2069 | /// |
---|
| 2070 | /// Construct a section reader, which reads from the given input |
---|
| 2071 | /// stream. |
---|
[209] | 2072 | SectionReader(std::istream& is) |
---|
[189] | 2073 | : _is(&is), local_is(false) {} |
---|
| 2074 | |
---|
| 2075 | /// \brief Constructor |
---|
| 2076 | /// |
---|
| 2077 | /// Construct a section reader, which reads from the given file. |
---|
[209] | 2078 | SectionReader(const std::string& fn) |
---|
[189] | 2079 | : _is(new std::ifstream(fn.c_str())), local_is(true) {} |
---|
[209] | 2080 | |
---|
[189] | 2081 | /// \brief Constructor |
---|
| 2082 | /// |
---|
| 2083 | /// Construct a section reader, which reads from the given file. |
---|
[209] | 2084 | SectionReader(const char* fn) |
---|
[189] | 2085 | : _is(new std::ifstream(fn)), local_is(true) {} |
---|
| 2086 | |
---|
| 2087 | /// \brief Destructor |
---|
| 2088 | ~SectionReader() { |
---|
[209] | 2089 | for (Sections::iterator it = _sections.begin(); |
---|
| 2090 | it != _sections.end(); ++it) { |
---|
| 2091 | delete it->second; |
---|
[189] | 2092 | } |
---|
| 2093 | |
---|
| 2094 | if (local_is) { |
---|
[209] | 2095 | delete _is; |
---|
[189] | 2096 | } |
---|
| 2097 | |
---|
| 2098 | } |
---|
| 2099 | |
---|
| 2100 | private: |
---|
[190] | 2101 | |
---|
| 2102 | friend SectionReader sectionReader(std::istream& is); |
---|
| 2103 | friend SectionReader sectionReader(const std::string& fn); |
---|
| 2104 | friend SectionReader sectionReader(const char* fn); |
---|
| 2105 | |
---|
[209] | 2106 | SectionReader(SectionReader& other) |
---|
[190] | 2107 | : _is(other._is), local_is(other.local_is) { |
---|
| 2108 | |
---|
| 2109 | other._is = 0; |
---|
| 2110 | other.local_is = false; |
---|
[209] | 2111 | |
---|
[190] | 2112 | _sections.swap(other._sections); |
---|
| 2113 | } |
---|
[209] | 2114 | |
---|
[189] | 2115 | SectionReader& operator=(const SectionReader&); |
---|
| 2116 | |
---|
| 2117 | public: |
---|
| 2118 | |
---|
| 2119 | /// \name Section readers |
---|
| 2120 | /// @{ |
---|
| 2121 | |
---|
| 2122 | /// \brief Add a section processor with line oriented reading |
---|
| 2123 | /// |
---|
| 2124 | /// The first parameter is the type descriptor of the section, the |
---|
| 2125 | /// second is a functor, which takes just one \c std::string |
---|
| 2126 | /// parameter. At the reading process, each line of the section |
---|
| 2127 | /// will be given to the functor object. However, the empty lines |
---|
| 2128 | /// and the comment lines are filtered out, and the leading |
---|
| 2129 | /// whitespaces are trimmed from each processed string. |
---|
| 2130 | /// |
---|
| 2131 | /// For example let's see a section, which contain several |
---|
| 2132 | /// integers, which should be inserted into a vector. |
---|
| 2133 | ///\code |
---|
| 2134 | /// @numbers |
---|
| 2135 | /// 12 45 23 |
---|
| 2136 | /// 4 |
---|
| 2137 | /// 23 6 |
---|
| 2138 | ///\endcode |
---|
| 2139 | /// |
---|
[192] | 2140 | /// The functor is implemented as a struct: |
---|
[189] | 2141 | ///\code |
---|
| 2142 | /// struct NumberSection { |
---|
| 2143 | /// std::vector<int>& _data; |
---|
| 2144 | /// NumberSection(std::vector<int>& data) : _data(data) {} |
---|
| 2145 | /// void operator()(const std::string& line) { |
---|
| 2146 | /// std::istringstream ls(line); |
---|
| 2147 | /// int value; |
---|
| 2148 | /// while (ls >> value) _data.push_back(value); |
---|
| 2149 | /// } |
---|
| 2150 | /// }; |
---|
| 2151 | /// |
---|
| 2152 | /// // ... |
---|
| 2153 | /// |
---|
[209] | 2154 | /// reader.sectionLines("numbers", NumberSection(vec)); |
---|
[189] | 2155 | ///\endcode |
---|
| 2156 | template <typename Functor> |
---|
| 2157 | SectionReader& sectionLines(const std::string& type, Functor functor) { |
---|
[192] | 2158 | LEMON_ASSERT(!type.empty(), "Type is empty."); |
---|
[209] | 2159 | LEMON_ASSERT(_sections.find(type) == _sections.end(), |
---|
| 2160 | "Multiple reading of section."); |
---|
| 2161 | _sections.insert(std::make_pair(type, |
---|
[189] | 2162 | new _reader_bits::LineSection<Functor>(functor))); |
---|
| 2163 | return *this; |
---|
| 2164 | } |
---|
| 2165 | |
---|
| 2166 | |
---|
| 2167 | /// \brief Add a section processor with stream oriented reading |
---|
| 2168 | /// |
---|
| 2169 | /// The first parameter is the type of the section, the second is |
---|
[192] | 2170 | /// a functor, which takes an \c std::istream& and an \c int& |
---|
[189] | 2171 | /// parameter, the latter regard to the line number of stream. The |
---|
| 2172 | /// functor can read the input while the section go on, and the |
---|
| 2173 | /// line number should be modified accordingly. |
---|
| 2174 | template <typename Functor> |
---|
| 2175 | SectionReader& sectionStream(const std::string& type, Functor functor) { |
---|
[192] | 2176 | LEMON_ASSERT(!type.empty(), "Type is empty."); |
---|
[209] | 2177 | LEMON_ASSERT(_sections.find(type) == _sections.end(), |
---|
| 2178 | "Multiple reading of section."); |
---|
| 2179 | _sections.insert(std::make_pair(type, |
---|
| 2180 | new _reader_bits::StreamSection<Functor>(functor))); |
---|
[189] | 2181 | return *this; |
---|
[209] | 2182 | } |
---|
| 2183 | |
---|
[189] | 2184 | /// @} |
---|
| 2185 | |
---|
| 2186 | private: |
---|
| 2187 | |
---|
| 2188 | bool readLine() { |
---|
| 2189 | std::string str; |
---|
| 2190 | while(++line_num, std::getline(*_is, str)) { |
---|
[209] | 2191 | line.clear(); line.str(str); |
---|
| 2192 | char c; |
---|
| 2193 | if (line >> std::ws >> c && c != '#') { |
---|
| 2194 | line.putback(c); |
---|
| 2195 | return true; |
---|
| 2196 | } |
---|
[189] | 2197 | } |
---|
| 2198 | return false; |
---|
| 2199 | } |
---|
| 2200 | |
---|
| 2201 | bool readSuccess() { |
---|
| 2202 | return static_cast<bool>(*_is); |
---|
| 2203 | } |
---|
[209] | 2204 | |
---|
[189] | 2205 | void skipSection() { |
---|
| 2206 | char c; |
---|
| 2207 | while (readSuccess() && line >> c && c != '@') { |
---|
[209] | 2208 | readLine(); |
---|
[189] | 2209 | } |
---|
| 2210 | line.putback(c); |
---|
| 2211 | } |
---|
| 2212 | |
---|
| 2213 | public: |
---|
| 2214 | |
---|
| 2215 | |
---|
[209] | 2216 | /// \name Execution of the reader |
---|
[189] | 2217 | /// @{ |
---|
| 2218 | |
---|
| 2219 | /// \brief Start the batch processing |
---|
| 2220 | /// |
---|
[192] | 2221 | /// This function starts the batch processing. |
---|
[189] | 2222 | void run() { |
---|
[209] | 2223 | |
---|
[189] | 2224 | LEMON_ASSERT(_is != 0, "This reader assigned to an other reader"); |
---|
[209] | 2225 | |
---|
[189] | 2226 | std::set<std::string> extra_sections; |
---|
| 2227 | |
---|
[209] | 2228 | line_num = 0; |
---|
[189] | 2229 | readLine(); |
---|
| 2230 | skipSection(); |
---|
| 2231 | |
---|
| 2232 | while (readSuccess()) { |
---|
[209] | 2233 | try { |
---|
| 2234 | char c; |
---|
| 2235 | std::string section, caption; |
---|
| 2236 | line >> c; |
---|
| 2237 | _reader_bits::readToken(line, section); |
---|
| 2238 | _reader_bits::readToken(line, caption); |
---|
| 2239 | |
---|
| 2240 | if (line >> c) |
---|
| 2241 | throw DataFormatError("Extra character on the end of line"); |
---|
| 2242 | |
---|
| 2243 | if (extra_sections.find(section) != extra_sections.end()) { |
---|
| 2244 | std::ostringstream msg; |
---|
| 2245 | msg << "Multiple occurence of section " << section; |
---|
| 2246 | throw DataFormatError(msg.str().c_str()); |
---|
| 2247 | } |
---|
| 2248 | Sections::iterator it = _sections.find(section); |
---|
| 2249 | if (it != _sections.end()) { |
---|
| 2250 | extra_sections.insert(section); |
---|
| 2251 | it->second->process(*_is, line_num); |
---|
| 2252 | } |
---|
| 2253 | readLine(); |
---|
| 2254 | skipSection(); |
---|
| 2255 | } catch (DataFormatError& error) { |
---|
| 2256 | error.line(line_num); |
---|
| 2257 | throw; |
---|
| 2258 | } |
---|
[189] | 2259 | } |
---|
| 2260 | for (Sections::iterator it = _sections.begin(); |
---|
[209] | 2261 | it != _sections.end(); ++it) { |
---|
| 2262 | if (extra_sections.find(it->first) == extra_sections.end()) { |
---|
| 2263 | std::ostringstream os; |
---|
| 2264 | os << "Cannot find section: " << it->first; |
---|
| 2265 | throw DataFormatError(os.str().c_str()); |
---|
| 2266 | } |
---|
[189] | 2267 | } |
---|
| 2268 | } |
---|
| 2269 | |
---|
| 2270 | /// @} |
---|
[209] | 2271 | |
---|
[189] | 2272 | }; |
---|
| 2273 | |
---|
[192] | 2274 | /// \brief Return a \ref SectionReader class |
---|
[209] | 2275 | /// |
---|
[192] | 2276 | /// This function just returns a \ref SectionReader class. |
---|
[189] | 2277 | /// \relates SectionReader |
---|
| 2278 | inline SectionReader sectionReader(std::istream& is) { |
---|
| 2279 | SectionReader tmp(is); |
---|
| 2280 | return tmp; |
---|
| 2281 | } |
---|
| 2282 | |
---|
[192] | 2283 | /// \brief Return a \ref SectionReader class |
---|
[209] | 2284 | /// |
---|
[192] | 2285 | /// This function just returns a \ref SectionReader class. |
---|
[189] | 2286 | /// \relates SectionReader |
---|
| 2287 | inline SectionReader sectionReader(const std::string& fn) { |
---|
| 2288 | SectionReader tmp(fn); |
---|
| 2289 | return tmp; |
---|
| 2290 | } |
---|
| 2291 | |
---|
[192] | 2292 | /// \brief Return a \ref SectionReader class |
---|
[209] | 2293 | /// |
---|
[192] | 2294 | /// This function just returns a \ref SectionReader class. |
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[189] | 2295 | /// \relates SectionReader |
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| 2296 | inline SectionReader sectionReader(const char* fn) { |
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| 2297 | SectionReader tmp(fn); |
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| 2298 | return tmp; |
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| 2299 | } |
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| 2300 | |
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[173] | 2301 | /// \ingroup lemon_io |
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| 2302 | /// |
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[209] | 2303 | /// \brief Reader for the contents of the \ref lgf-format "LGF" file |
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[173] | 2304 | /// |
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| 2305 | /// This class can be used to read the sections, the map names and |
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[236] | 2306 | /// the attributes from a file. Usually, the LEMON programs know |
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[173] | 2307 | /// that, which type of graph, which maps and which attributes |
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| 2308 | /// should be read from a file, but in general tools (like glemon) |
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[179] | 2309 | /// the contents of an LGF file should be guessed somehow. This class |
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[173] | 2310 | /// reads the graph and stores the appropriate information for |
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| 2311 | /// reading the graph. |
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| 2312 | /// |
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[209] | 2313 | ///\code |
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| 2314 | /// LgfContents contents("graph.lgf"); |
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[179] | 2315 | /// contents.run(); |
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[173] | 2316 | /// |
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[192] | 2317 | /// // Does it contain any node section and arc section? |
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[179] | 2318 | /// if (contents.nodeSectionNum() == 0 || contents.arcSectionNum()) { |
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[192] | 2319 | /// std::cerr << "Failure, cannot find graph." << std::endl; |
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[173] | 2320 | /// return -1; |
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| 2321 | /// } |
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[209] | 2322 | /// std::cout << "The name of the default node section: " |
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[179] | 2323 | /// << contents.nodeSection(0) << std::endl; |
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[209] | 2324 | /// std::cout << "The number of the arc maps: " |
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[179] | 2325 | /// << contents.arcMaps(0).size() << std::endl; |
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[209] | 2326 | /// std::cout << "The name of second arc map: " |
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[179] | 2327 | /// << contents.arcMaps(0)[1] << std::endl; |
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[173] | 2328 | ///\endcode |
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[209] | 2329 | class LgfContents { |
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[173] | 2330 | private: |
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| 2331 | |
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| 2332 | std::istream* _is; |
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| 2333 | bool local_is; |
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| 2334 | |
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| 2335 | std::vector<std::string> _node_sections; |
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| 2336 | std::vector<std::string> _edge_sections; |
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| 2337 | std::vector<std::string> _attribute_sections; |
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| 2338 | std::vector<std::string> _extra_sections; |
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| 2339 | |
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| 2340 | std::vector<bool> _arc_sections; |
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| 2341 | |
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| 2342 | std::vector<std::vector<std::string> > _node_maps; |
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| 2343 | std::vector<std::vector<std::string> > _edge_maps; |
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| 2344 | |
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| 2345 | std::vector<std::vector<std::string> > _attributes; |
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| 2346 | |
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| 2347 | |
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| 2348 | int line_num; |
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| 2349 | std::istringstream line; |
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[209] | 2350 | |
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[173] | 2351 | public: |
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| 2352 | |
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| 2353 | /// \brief Constructor |
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| 2354 | /// |
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[179] | 2355 | /// Construct an \e LGF contents reader, which reads from the given |
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[173] | 2356 | /// input stream. |
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[209] | 2357 | LgfContents(std::istream& is) |
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[173] | 2358 | : _is(&is), local_is(false) {} |
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| 2359 | |
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| 2360 | /// \brief Constructor |
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| 2361 | /// |
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[179] | 2362 | /// Construct an \e LGF contents reader, which reads from the given |
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[173] | 2363 | /// file. |
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[209] | 2364 | LgfContents(const std::string& fn) |
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[173] | 2365 | : _is(new std::ifstream(fn.c_str())), local_is(true) {} |
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| 2366 | |
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| 2367 | /// \brief Constructor |
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| 2368 | /// |
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[179] | 2369 | /// Construct an \e LGF contents reader, which reads from the given |
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[173] | 2370 | /// file. |
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[179] | 2371 | LgfContents(const char* fn) |
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[173] | 2372 | : _is(new std::ifstream(fn)), local_is(true) {} |
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[209] | 2373 | |
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[173] | 2374 | /// \brief Destructor |
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[179] | 2375 | ~LgfContents() { |
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[173] | 2376 | if (local_is) delete _is; |
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| 2377 | } |
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| 2378 | |
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[190] | 2379 | private: |
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[209] | 2380 | |
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[190] | 2381 | LgfContents(const LgfContents&); |
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| 2382 | LgfContents& operator=(const LgfContents&); |
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| 2383 | |
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| 2384 | public: |
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| 2385 | |
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[173] | 2386 | |
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| 2387 | /// \name Node sections |
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| 2388 | /// @{ |
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| 2389 | |
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| 2390 | /// \brief Gives back the number of node sections in the file. |
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| 2391 | /// |
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| 2392 | /// Gives back the number of node sections in the file. |
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| 2393 | int nodeSectionNum() const { |
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| 2394 | return _node_sections.size(); |
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| 2395 | } |
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| 2396 | |
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[209] | 2397 | /// \brief Returns the node section name at the given position. |
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[173] | 2398 | /// |
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[209] | 2399 | /// Returns the node section name at the given position. |
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[173] | 2400 | const std::string& nodeSection(int i) const { |
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| 2401 | return _node_sections[i]; |
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| 2402 | } |
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| 2403 | |
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| 2404 | /// \brief Gives back the node maps for the given section. |
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| 2405 | /// |
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| 2406 | /// Gives back the node maps for the given section. |
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[182] | 2407 | const std::vector<std::string>& nodeMapNames(int i) const { |
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[173] | 2408 | return _node_maps[i]; |
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| 2409 | } |
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| 2410 | |
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| 2411 | /// @} |
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| 2412 | |
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[209] | 2413 | /// \name Arc/Edge sections |
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[173] | 2414 | /// @{ |
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| 2415 | |
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[181] | 2416 | /// \brief Gives back the number of arc/edge sections in the file. |
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[173] | 2417 | /// |
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[181] | 2418 | /// Gives back the number of arc/edge sections in the file. |
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| 2419 | /// \note It is synonym of \c edgeSectionNum(). |
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[173] | 2420 | int arcSectionNum() const { |
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| 2421 | return _edge_sections.size(); |
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| 2422 | } |
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| 2423 | |
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[209] | 2424 | /// \brief Returns the arc/edge section name at the given position. |
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[173] | 2425 | /// |
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[209] | 2426 | /// Returns the arc/edge section name at the given position. |
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[181] | 2427 | /// \note It is synonym of \c edgeSection(). |
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[173] | 2428 | const std::string& arcSection(int i) const { |
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| 2429 | return _edge_sections[i]; |
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| 2430 | } |
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| 2431 | |
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[181] | 2432 | /// \brief Gives back the arc/edge maps for the given section. |
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[173] | 2433 | /// |
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[181] | 2434 | /// Gives back the arc/edge maps for the given section. |
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[182] | 2435 | /// \note It is synonym of \c edgeMapNames(). |
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| 2436 | const std::vector<std::string>& arcMapNames(int i) const { |
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[173] | 2437 | return _edge_maps[i]; |
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| 2438 | } |
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| 2439 | |
---|
| 2440 | /// @} |
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| 2441 | |
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[181] | 2442 | /// \name Synonyms |
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[173] | 2443 | /// @{ |
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| 2444 | |
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[181] | 2445 | /// \brief Gives back the number of arc/edge sections in the file. |
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[173] | 2446 | /// |
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[181] | 2447 | /// Gives back the number of arc/edge sections in the file. |
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| 2448 | /// \note It is synonym of \c arcSectionNum(). |
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[173] | 2449 | int edgeSectionNum() const { |
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| 2450 | return _edge_sections.size(); |
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| 2451 | } |
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| 2452 | |
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[209] | 2453 | /// \brief Returns the section name at the given position. |
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[173] | 2454 | /// |
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[209] | 2455 | /// Returns the section name at the given position. |
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[181] | 2456 | /// \note It is synonym of \c arcSection(). |
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[173] | 2457 | const std::string& edgeSection(int i) const { |
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| 2458 | return _edge_sections[i]; |
---|
| 2459 | } |
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| 2460 | |
---|
| 2461 | /// \brief Gives back the edge maps for the given section. |
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| 2462 | /// |
---|
| 2463 | /// Gives back the edge maps for the given section. |
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[182] | 2464 | /// \note It is synonym of \c arcMapNames(). |
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| 2465 | const std::vector<std::string>& edgeMapNames(int i) const { |
---|
[173] | 2466 | return _edge_maps[i]; |
---|
| 2467 | } |
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| 2468 | |
---|
| 2469 | /// @} |
---|
| 2470 | |
---|
[209] | 2471 | /// \name Attribute sections |
---|
[173] | 2472 | /// @{ |
---|
| 2473 | |
---|
| 2474 | /// \brief Gives back the number of attribute sections in the file. |
---|
| 2475 | /// |
---|
| 2476 | /// Gives back the number of attribute sections in the file. |
---|
| 2477 | int attributeSectionNum() const { |
---|
| 2478 | return _attribute_sections.size(); |
---|
| 2479 | } |
---|
| 2480 | |
---|
[209] | 2481 | /// \brief Returns the attribute section name at the given position. |
---|
[173] | 2482 | /// |
---|
[209] | 2483 | /// Returns the attribute section name at the given position. |
---|
[182] | 2484 | const std::string& attributeSectionNames(int i) const { |
---|
[173] | 2485 | return _attribute_sections[i]; |
---|
| 2486 | } |
---|
| 2487 | |
---|
| 2488 | /// \brief Gives back the attributes for the given section. |
---|
| 2489 | /// |
---|
| 2490 | /// Gives back the attributes for the given section. |
---|
| 2491 | const std::vector<std::string>& attributes(int i) const { |
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| 2492 | return _attributes[i]; |
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| 2493 | } |
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| 2494 | |
---|
| 2495 | /// @} |
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| 2496 | |
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[209] | 2497 | /// \name Extra sections |
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[173] | 2498 | /// @{ |
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| 2499 | |
---|
| 2500 | /// \brief Gives back the number of extra sections in the file. |
---|
| 2501 | /// |
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| 2502 | /// Gives back the number of extra sections in the file. |
---|
| 2503 | int extraSectionNum() const { |
---|
| 2504 | return _extra_sections.size(); |
---|
| 2505 | } |
---|
| 2506 | |
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[209] | 2507 | /// \brief Returns the extra section type at the given position. |
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[173] | 2508 | /// |
---|
[209] | 2509 | /// Returns the section type at the given position. |
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[173] | 2510 | const std::string& extraSection(int i) const { |
---|
| 2511 | return _extra_sections[i]; |
---|
| 2512 | } |
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| 2513 | |
---|
| 2514 | /// @} |
---|
| 2515 | |
---|
| 2516 | private: |
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| 2517 | |
---|
| 2518 | bool readLine() { |
---|
| 2519 | std::string str; |
---|
| 2520 | while(++line_num, std::getline(*_is, str)) { |
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[209] | 2521 | line.clear(); line.str(str); |
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| 2522 | char c; |
---|
| 2523 | if (line >> std::ws >> c && c != '#') { |
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| 2524 | line.putback(c); |
---|
| 2525 | return true; |
---|
| 2526 | } |
---|
[173] | 2527 | } |
---|
| 2528 | return false; |
---|
| 2529 | } |
---|
| 2530 | |
---|
| 2531 | bool readSuccess() { |
---|
| 2532 | return static_cast<bool>(*_is); |
---|
| 2533 | } |
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| 2534 | |
---|
| 2535 | void skipSection() { |
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| 2536 | char c; |
---|
| 2537 | while (readSuccess() && line >> c && c != '@') { |
---|
[209] | 2538 | readLine(); |
---|
[173] | 2539 | } |
---|
| 2540 | line.putback(c); |
---|
| 2541 | } |
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| 2542 | |
---|
| 2543 | void readMaps(std::vector<std::string>& maps) { |
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[186] | 2544 | char c; |
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| 2545 | if (!readLine() || !(line >> c) || c == '@') { |
---|
[209] | 2546 | if (readSuccess() && line) line.putback(c); |
---|
| 2547 | return; |
---|
[186] | 2548 | } |
---|
| 2549 | line.putback(c); |
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[173] | 2550 | std::string map; |
---|
| 2551 | while (_reader_bits::readToken(line, map)) { |
---|
[209] | 2552 | maps.push_back(map); |
---|
[173] | 2553 | } |
---|
| 2554 | } |
---|
| 2555 | |
---|
| 2556 | void readAttributes(std::vector<std::string>& attrs) { |
---|
| 2557 | readLine(); |
---|
| 2558 | char c; |
---|
| 2559 | while (readSuccess() && line >> c && c != '@') { |
---|
[209] | 2560 | line.putback(c); |
---|
| 2561 | std::string attr; |
---|
| 2562 | _reader_bits::readToken(line, attr); |
---|
| 2563 | attrs.push_back(attr); |
---|
| 2564 | readLine(); |
---|
[173] | 2565 | } |
---|
| 2566 | line.putback(c); |
---|
| 2567 | } |
---|
| 2568 | |
---|
| 2569 | public: |
---|
| 2570 | |
---|
[209] | 2571 | /// \name Execution of the contents reader |
---|
[173] | 2572 | /// @{ |
---|
| 2573 | |
---|
[192] | 2574 | /// \brief Starts the reading |
---|
[173] | 2575 | /// |
---|
[192] | 2576 | /// This function starts the reading. |
---|
[173] | 2577 | void run() { |
---|
| 2578 | |
---|
| 2579 | readLine(); |
---|
| 2580 | skipSection(); |
---|
| 2581 | |
---|
| 2582 | while (readSuccess()) { |
---|
| 2583 | |
---|
[209] | 2584 | char c; |
---|
| 2585 | line >> c; |
---|
| 2586 | |
---|
| 2587 | std::string section, caption; |
---|
| 2588 | _reader_bits::readToken(line, section); |
---|
| 2589 | _reader_bits::readToken(line, caption); |
---|
| 2590 | |
---|
| 2591 | if (section == "nodes") { |
---|
| 2592 | _node_sections.push_back(caption); |
---|
| 2593 | _node_maps.push_back(std::vector<std::string>()); |
---|
| 2594 | readMaps(_node_maps.back()); |
---|
| 2595 | readLine(); skipSection(); |
---|
| 2596 | } else if (section == "arcs" || section == "edges") { |
---|
| 2597 | _edge_sections.push_back(caption); |
---|
| 2598 | _arc_sections.push_back(section == "arcs"); |
---|
| 2599 | _edge_maps.push_back(std::vector<std::string>()); |
---|
| 2600 | readMaps(_edge_maps.back()); |
---|
| 2601 | readLine(); skipSection(); |
---|
| 2602 | } else if (section == "attributes") { |
---|
| 2603 | _attribute_sections.push_back(caption); |
---|
| 2604 | _attributes.push_back(std::vector<std::string>()); |
---|
| 2605 | readAttributes(_attributes.back()); |
---|
| 2606 | } else { |
---|
| 2607 | _extra_sections.push_back(section); |
---|
| 2608 | readLine(); skipSection(); |
---|
| 2609 | } |
---|
[173] | 2610 | } |
---|
| 2611 | } |
---|
| 2612 | |
---|
| 2613 | /// @} |
---|
[209] | 2614 | |
---|
[173] | 2615 | }; |
---|
[127] | 2616 | } |
---|
| 2617 | |
---|
| 2618 | #endif |
---|