[1408] | 1 | /* -*- C++ -*- |
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| 2 | * src/lemon/lemon_reader.h - Part of LEMON, a generic C++ optimization library |
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| 3 | * |
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| 4 | * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 5 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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| 6 | * |
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| 7 | * Permission to use, modify and distribute this software is granted |
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| 8 | * provided that this copyright notice appears in all copies. For |
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| 9 | * precise terms see the accompanying LICENSE file. |
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| 10 | * |
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| 11 | * This software is provided "AS IS" with no warranty of any kind, |
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| 12 | * express or implied, and with no claim as to its suitability for any |
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| 13 | * purpose. |
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| 14 | * |
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| 15 | */ |
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| 16 | |
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| 17 | ///\ingroup io_group |
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| 18 | ///\file |
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| 19 | ///\brief Lemon Format reader. |
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| 20 | |
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[1421] | 21 | |
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[1408] | 22 | #ifndef LEMON_LEMON_READER_H |
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| 23 | #define LEMON_LEMON_READER_H |
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| 24 | |
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[1421] | 25 | |
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[1408] | 26 | #include <iostream> |
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| 27 | #include <fstream> |
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| 28 | #include <string> |
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| 29 | #include <vector> |
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| 30 | #include <algorithm> |
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| 31 | #include <map> |
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| 32 | #include <memory> |
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| 33 | |
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| 34 | #include <lemon/error.h> |
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[1421] | 35 | #include <lemon/graph_utils.h> |
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| 36 | #include <lemon/utility.h> |
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[1409] | 37 | #include <lemon/bits/item_reader.h> |
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[1408] | 38 | |
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| 39 | |
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| 40 | namespace lemon { |
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| 41 | |
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[1421] | 42 | namespace _reader_bits { |
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| 43 | |
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| 44 | template <typename T> |
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| 45 | bool operator<(T, T) { |
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| 46 | throw DataFormatError("Id is not comparable"); |
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| 47 | } |
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| 48 | |
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| 49 | template <typename T> |
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| 50 | struct Less { |
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| 51 | bool operator()(const T& p, const T& q) const { |
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| 52 | return p < q; |
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| 53 | } |
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| 54 | }; |
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| 55 | |
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| 56 | template <typename M1, typename M2> |
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| 57 | class WriteComposeMap { |
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| 58 | public: |
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| 59 | typedef True NeedCopy; |
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| 60 | |
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| 61 | typedef typename M2::Key Key; |
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| 62 | typedef typename M1::Value Value; |
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| 63 | |
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| 64 | WriteComposeMap(typename SmartParameter<M1>::Type _m1, const M2& _m2) |
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| 65 | : m1(_m1), m2(_m2) {} |
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| 66 | |
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| 67 | void set(const Key& key, const Value& value) { |
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| 68 | m1.set(m2[key], value); |
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| 69 | } |
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| 70 | |
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| 71 | private: |
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| 72 | |
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| 73 | typename SmartReference<M1>::Type m1; |
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| 74 | typename SmartConstReference<M2>::Type m2; |
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| 75 | |
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| 76 | }; |
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| 77 | |
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| 78 | template <typename M1, typename M2> |
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| 79 | WriteComposeMap<M1, M2> writeComposeMap(M1& m1, const M2& m2) { |
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| 80 | return WriteComposeMap<M1, M2>(m1, m2); |
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| 81 | } |
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| 82 | |
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| 83 | template <typename M1, typename M2> |
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| 84 | WriteComposeMap<M1, M2> writeComposeMap(const M1& m1, const M2& m2) { |
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| 85 | return WriteComposeMap<M1, M2>(m1, m2); |
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| 86 | } |
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| 87 | |
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| 88 | } |
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| 89 | |
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[1409] | 90 | /// \ingroup io_group |
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[1408] | 91 | /// \brief Lemon Format reader class. |
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| 92 | /// |
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[1409] | 93 | /// The Lemon Format contains several sections. We do not want to |
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| 94 | /// determine what sections are in a lemon file we give only a framework |
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| 95 | /// to read a section oriented format. |
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| 96 | /// |
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| 97 | /// In the Lemon Format each section starts with a line contains a \c \@ |
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| 98 | /// character on the first not white space position. This line is the |
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| 99 | /// header line of the section. Each next lines belong to this section |
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| 100 | /// while it does not starts with \c \@ character. This line can start a |
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| 101 | /// new section or if it can close the file with the \c \@end line. |
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[1427] | 102 | /// The file format ignore the empty and comment lines. The line is |
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| 103 | /// comment line if it starts with a \c # character. |
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[1409] | 104 | /// |
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| 105 | /// The framework provides an abstract LemonReader::SectionReader class |
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| 106 | /// what defines the interface of a SectionReader. The SectionReader |
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| 107 | /// has the \c header() member function what get a header line string and |
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| 108 | /// decides if it want to process the next section. Several SectionReaders |
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| 109 | /// can be attached to an LemonReader and the first attached what can |
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| 110 | /// process the section will be used. Its \c read() member will called |
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[1427] | 111 | /// with a stream contains the section. From this stream the empty and |
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| 112 | /// comment lines are filtered out. |
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[1409] | 113 | /// |
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| 114 | /// \relates GraphReader |
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| 115 | /// \relates NodeSetReader |
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| 116 | /// \relates EdgeSetReader |
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| 117 | /// \relates NodesReader |
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| 118 | /// \relates EdgesReader |
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| 119 | /// \relates AttributeReader |
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[1408] | 120 | class LemonReader { |
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| 121 | private: |
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| 122 | |
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| 123 | class FilterStreamBuf : public std::streambuf { |
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| 124 | public: |
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| 125 | |
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| 126 | typedef std::streambuf Parent; |
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| 127 | typedef Parent::char_type char_type; |
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| 128 | FilterStreamBuf(std::istream& is, int& num) |
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| 129 | : _is(is), _base(0), _eptr(0), |
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| 130 | _num(num), skip_state(after_endl) {} |
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| 131 | |
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| 132 | protected: |
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| 133 | |
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| 134 | enum skip_state_type { |
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| 135 | no_skip, |
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| 136 | after_endl, |
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[1427] | 137 | comment_line |
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[1408] | 138 | }; |
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| 139 | |
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| 140 | char_type small_buf[1]; |
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| 141 | |
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| 142 | |
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| 143 | std::istream& _is; |
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| 144 | |
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| 145 | char_type* _base; |
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| 146 | char_type* _eptr; |
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| 147 | |
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| 148 | int& _num; |
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| 149 | |
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| 150 | skip_state_type skip_state; |
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| 151 | |
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| 152 | |
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| 153 | char_type* base() { return _base; } |
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| 154 | |
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| 155 | char_type* eptr() { return _eptr; } |
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| 156 | |
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| 157 | int blen() { return _eptr - _base; } |
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| 158 | |
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| 159 | void setb(char_type* buf, int len) { |
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| 160 | _base = buf; |
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| 161 | _eptr = buf + len; |
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| 162 | } |
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| 163 | |
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| 164 | virtual std::streambuf* setbuf(char *buf, int len) { |
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| 165 | if (base()) return 0; |
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| 166 | if (buf != 0 && len >= (int)sizeof(small_buf)) { |
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| 167 | setb(buf, len); |
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| 168 | } else { |
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| 169 | setb(small_buf, sizeof(small_buf)); |
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| 170 | } |
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| 171 | setg(0, 0, 0); |
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| 172 | return this; |
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| 173 | } |
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| 174 | |
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| 175 | bool put_char(char c) { |
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| 176 | switch (skip_state) { |
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| 177 | case no_skip: |
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| 178 | switch (c) { |
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| 179 | case '\n': |
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| 180 | skip_state = after_endl; |
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| 181 | return true; |
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| 182 | default: |
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| 183 | return true; |
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| 184 | } |
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| 185 | case after_endl: |
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| 186 | switch (c) { |
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| 187 | case '@': |
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| 188 | return false; |
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| 189 | case '\n': |
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| 190 | return false; |
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| 191 | case '#': |
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[1427] | 192 | skip_state = comment_line; |
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[1408] | 193 | return false; |
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| 194 | default: |
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| 195 | if (!isspace(c)) { |
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| 196 | skip_state = no_skip; |
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| 197 | return true; |
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| 198 | } else { |
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| 199 | return false; |
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| 200 | } |
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| 201 | } |
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| 202 | break; |
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[1427] | 203 | case comment_line: |
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[1408] | 204 | switch (c) { |
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| 205 | case '\n': |
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| 206 | skip_state = after_endl; |
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| 207 | return false; |
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| 208 | default: |
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| 209 | return false; |
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| 210 | } |
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| 211 | } |
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| 212 | return false; |
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| 213 | } |
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| 214 | |
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| 215 | virtual int underflow() { |
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| 216 | char c; |
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| 217 | if (_is.read(&c, 1)) { |
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| 218 | _is.putback(c); |
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| 219 | if (c == '@') { |
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| 220 | return EOF; |
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| 221 | } |
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| 222 | } else { |
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| 223 | return EOF; |
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| 224 | } |
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| 225 | char_type *ptr; |
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| 226 | for (ptr = base(); ptr != eptr(); ++ptr) { |
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| 227 | if (_is.read(&c, 1)) { |
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| 228 | if (c == '\n') ++_num; |
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| 229 | if (put_char(c)) { |
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| 230 | *ptr = c; |
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| 231 | } else { |
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| 232 | if (skip_state == after_endl && c == '@') { |
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| 233 | _is.putback('@'); |
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| 234 | break; |
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| 235 | } |
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| 236 | --ptr; |
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| 237 | } |
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| 238 | } else { |
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| 239 | break; |
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| 240 | } |
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| 241 | } |
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| 242 | setg(base(), base(), ptr); |
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| 243 | return *base(); |
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| 244 | } |
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| 245 | |
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| 246 | virtual int sync() { |
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| 247 | return EOF; |
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| 248 | } |
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| 249 | }; |
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| 250 | |
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| 251 | public: |
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| 252 | |
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[1409] | 253 | /// \brief Abstract base class for reading a section. |
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| 254 | /// |
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| 255 | /// This class has an \c header() member function what get a |
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| 256 | /// header line string and decides if it want to process the next |
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| 257 | /// section. Several SectionReaders can be attached to an LemonReader |
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| 258 | /// and the first attached what can process the section will be used. |
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| 259 | /// Its \c read() member will called with a stream contains the section. |
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| 260 | /// From this stream the empty lines and comments are filtered out. |
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[1408] | 261 | class SectionReader { |
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[1409] | 262 | friend class LemonReader; |
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| 263 | protected: |
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| 264 | /// \brief Constructor for SectionReader. |
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| 265 | /// |
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| 266 | /// Constructor for SectionReader. It attach this reader to |
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| 267 | /// the given LemonReader. |
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| 268 | SectionReader(LemonReader& reader) { |
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| 269 | reader.attach(*this); |
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| 270 | } |
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| 271 | |
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| 272 | /// \brief Gives back true when the SectionReader can process |
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| 273 | /// the section with the given header line. |
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| 274 | /// |
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| 275 | /// It gives back true when the SectionReader can process |
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| 276 | /// the section with the given header line. |
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[1408] | 277 | virtual bool header(const std::string& line) = 0; |
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[1409] | 278 | |
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| 279 | /// \brief Reader function of the section. |
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| 280 | /// |
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| 281 | /// It reads the content of the section. |
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[1408] | 282 | virtual void read(std::istream& is) = 0; |
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| 283 | }; |
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| 284 | |
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[1409] | 285 | /// \brief Constructor for LemonReader. |
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| 286 | /// |
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| 287 | /// Constructor for LemonReader which reads from the given stream. |
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[1408] | 288 | LemonReader(std::istream& _is) |
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| 289 | : is(&_is), own_is(false) {} |
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| 290 | |
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[1409] | 291 | /// \brief Constructor for LemonReader. |
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| 292 | /// |
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| 293 | /// Constructor for LemonReader which reads from the given file. |
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[1408] | 294 | LemonReader(const std::string& filename) |
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| 295 | : is(0), own_is(true) { |
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| 296 | is = new std::ifstream(filename.c_str()); |
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| 297 | } |
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| 298 | |
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[1409] | 299 | /// \brief Desctructor for LemonReader. |
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| 300 | /// |
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| 301 | /// Desctructor for LemonReader. |
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[1408] | 302 | ~LemonReader() { |
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| 303 | if (own_is) { |
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| 304 | delete is; |
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| 305 | } |
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| 306 | } |
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| 307 | |
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| 308 | private: |
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| 309 | LemonReader(const LemonReader&); |
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| 310 | void operator=(const LemonReader&); |
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| 311 | |
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| 312 | void attach(SectionReader& reader) { |
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| 313 | readers.push_back(&reader); |
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| 314 | } |
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| 315 | |
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[1409] | 316 | public: |
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| 317 | /// \brief Executes the LemonReader. |
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| 318 | /// |
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| 319 | /// It executes the LemonReader. |
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[1408] | 320 | void run() { |
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| 321 | int line_num = 0; |
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| 322 | std::string line; |
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| 323 | try { |
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| 324 | while ((++line_num, getline(*is, line)) && line.find("@end") != 0) { |
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| 325 | SectionReaders::iterator it; |
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| 326 | for (it = readers.begin(); it != readers.end(); ++it) { |
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| 327 | if ((*it)->header(line)) { |
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| 328 | char buf[2048]; |
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| 329 | FilterStreamBuf buffer(*is, line_num); |
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| 330 | buffer.pubsetbuf(buf, sizeof(buf)); |
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| 331 | std::istream is(&buffer); |
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| 332 | (*it)->read(is); |
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| 333 | break; |
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| 334 | } |
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| 335 | } |
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| 336 | } |
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| 337 | } catch (DataFormatError& error) { |
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| 338 | error.line(line_num); |
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| 339 | throw error; |
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| 340 | } |
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| 341 | } |
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| 342 | |
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| 343 | |
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| 344 | private: |
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| 345 | |
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| 346 | std::istream* is; |
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| 347 | bool own_is; |
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| 348 | |
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| 349 | typedef std::vector<SectionReader*> SectionReaders; |
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| 350 | SectionReaders readers; |
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| 351 | |
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| 352 | }; |
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| 353 | |
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[1409] | 354 | /// \brief Helper class for implementing the common SectionReaders. |
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| 355 | /// |
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| 356 | /// Helper class for implementing the common SectionReaders. |
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| 357 | class CommonSectionReaderBase : public LemonReader::SectionReader { |
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| 358 | typedef LemonReader::SectionReader Parent; |
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| 359 | protected: |
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| 360 | |
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| 361 | /// \brief Constructor for CommonSectionReaderBase. |
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| 362 | /// |
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| 363 | /// Constructor for CommonSectionReaderBase. It attach this reader to |
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| 364 | /// the given LemonReader. |
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| 365 | CommonSectionReaderBase(LemonReader& _reader) |
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| 366 | : Parent(_reader) {} |
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[1408] | 367 | |
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| 368 | template <typename _Item> |
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| 369 | class ReaderBase; |
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| 370 | |
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| 371 | template <typename _Item> |
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| 372 | class InverterBase : public ReaderBase<_Item> { |
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| 373 | public: |
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| 374 | typedef _Item Item; |
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| 375 | virtual void read(std::istream&, const Item&) = 0; |
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| 376 | virtual Item read(std::istream&) const = 0; |
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| 377 | |
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| 378 | virtual InverterBase<_Item>* getInverter() { |
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| 379 | return this; |
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| 380 | } |
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| 381 | }; |
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| 382 | |
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| 383 | template <typename _Item, typename _Map, typename _Reader> |
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| 384 | class MapReaderInverter : public InverterBase<_Item> { |
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| 385 | public: |
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| 386 | typedef _Item Item; |
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| 387 | typedef _Reader Reader; |
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| 388 | typedef typename Reader::Value Value; |
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| 389 | typedef _Map Map; |
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[1424] | 390 | typedef std::map<Value, Item, _reader_bits::Less<Value> > Inverse; |
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[1408] | 391 | |
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[1421] | 392 | typename SmartReference<Map>::Type map; |
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[1408] | 393 | Reader reader; |
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| 394 | Inverse inverse; |
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| 395 | |
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[1421] | 396 | MapReaderInverter(typename SmartParameter<Map>::Type _map, |
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| 397 | const Reader& _reader) |
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[1408] | 398 | : map(_map), reader(_reader) {} |
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| 399 | |
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| 400 | virtual ~MapReaderInverter() {} |
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| 401 | |
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| 402 | virtual void read(std::istream& is, const Item& item) { |
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| 403 | Value value; |
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| 404 | reader.read(is, value); |
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| 405 | map.set(item, value); |
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| 406 | typename Inverse::iterator it = inverse.find(value); |
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| 407 | if (it == inverse.end()) { |
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| 408 | inverse.insert(std::make_pair(value, item)); |
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| 409 | } else { |
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| 410 | throw DataFormatError("Multiple ID occurence"); |
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| 411 | } |
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| 412 | } |
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| 413 | |
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| 414 | virtual Item read(std::istream& is) const { |
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| 415 | Value value; |
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| 416 | reader.read(is, value); |
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| 417 | typename Inverse::const_iterator it = inverse.find(value); |
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| 418 | if (it != inverse.end()) { |
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| 419 | return it->second; |
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| 420 | } else { |
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| 421 | throw DataFormatError("Invalid ID error"); |
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| 422 | } |
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| 423 | } |
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| 424 | }; |
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| 425 | |
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| 426 | template <typename _Item, typename _Reader> |
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| 427 | class SkipReaderInverter : public InverterBase<_Item> { |
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| 428 | public: |
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| 429 | typedef _Item Item; |
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| 430 | typedef _Reader Reader; |
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| 431 | typedef typename Reader::Value Value; |
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[1424] | 432 | typedef std::map<Value, Item, _reader_bits::Less<Value> > Inverse; |
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[1408] | 433 | |
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| 434 | Reader reader; |
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| 435 | |
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| 436 | SkipReaderInverter(const Reader& _reader) |
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| 437 | : reader(_reader) {} |
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| 438 | |
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| 439 | virtual ~SkipReaderInverter() {} |
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| 440 | |
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| 441 | virtual void read(std::istream& is, const Item& item) { |
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| 442 | Value value; |
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| 443 | reader.read(is, value); |
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| 444 | typename Inverse::iterator it = inverse.find(value); |
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| 445 | if (it == inverse.end()) { |
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| 446 | inverse.insert(std::make_pair(value, item)); |
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| 447 | } else { |
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| 448 | throw DataFormatError("Multiple ID occurence error"); |
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| 449 | } |
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| 450 | } |
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| 451 | |
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| 452 | virtual Item read(std::istream& is) const { |
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| 453 | Value value; |
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| 454 | reader.read(is, value); |
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| 455 | typename Inverse::const_iterator it = inverse.find(value); |
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| 456 | if (it != inverse.end()) { |
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| 457 | return it->second; |
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| 458 | } else { |
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| 459 | throw DataFormatError("Invalid ID error"); |
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| 460 | } |
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| 461 | } |
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| 462 | |
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| 463 | private: |
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| 464 | Inverse inverse; |
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| 465 | }; |
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| 466 | |
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| 467 | template <typename _Item> |
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| 468 | class ReaderBase { |
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| 469 | public: |
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| 470 | typedef _Item Item; |
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| 471 | |
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| 472 | virtual ~ReaderBase() {} |
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| 473 | |
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| 474 | virtual void read(std::istream& is, const Item& item) = 0; |
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| 475 | virtual InverterBase<_Item>* getInverter() = 0; |
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| 476 | }; |
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| 477 | |
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| 478 | template <typename _Item, typename _Map, typename _Reader> |
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| 479 | class MapReader : public ReaderBase<_Item> { |
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| 480 | public: |
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| 481 | typedef _Map Map; |
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| 482 | typedef _Reader Reader; |
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| 483 | typedef typename Reader::Value Value; |
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| 484 | typedef _Item Item; |
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| 485 | |
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[1421] | 486 | typename SmartReference<Map>::Type map; |
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[1408] | 487 | Reader reader; |
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| 488 | |
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[1421] | 489 | MapReader(typename SmartParameter<Map>::Type _map, |
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| 490 | const Reader& _reader) |
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[1408] | 491 | : map(_map), reader(_reader) {} |
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| 492 | |
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| 493 | virtual ~MapReader() {} |
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| 494 | |
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| 495 | virtual void read(std::istream& is, const Item& item) { |
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| 496 | Value value; |
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| 497 | reader.read(is, value); |
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| 498 | map.set(item, value); |
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| 499 | } |
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| 500 | |
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| 501 | virtual InverterBase<_Item>* getInverter() { |
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| 502 | return new MapReaderInverter<Item, Map, Reader>(map, reader); |
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| 503 | } |
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| 504 | }; |
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| 505 | |
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| 506 | |
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| 507 | template <typename _Item, typename _Reader> |
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| 508 | class SkipReader : public ReaderBase<_Item> { |
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| 509 | public: |
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| 510 | typedef _Reader Reader; |
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| 511 | typedef typename Reader::Value Value; |
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| 512 | typedef _Item Item; |
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| 513 | |
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| 514 | Reader reader; |
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| 515 | SkipReader(const Reader& _reader) : reader(_reader) {} |
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| 516 | |
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| 517 | virtual ~SkipReader() {} |
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| 518 | |
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| 519 | virtual void read(std::istream& is, const Item&) { |
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| 520 | Value value; |
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| 521 | reader.read(is, value); |
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| 522 | } |
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| 523 | |
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| 524 | virtual InverterBase<Item>* getInverter() { |
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| 525 | return new SkipReaderInverter<Item, Reader>(reader); |
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| 526 | } |
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| 527 | }; |
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| 528 | |
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| 529 | template <typename _Item> |
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[1409] | 530 | class IdReaderBase { |
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[1408] | 531 | public: |
---|
| 532 | typedef _Item Item; |
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[1409] | 533 | virtual Item read(std::istream& is) const = 0; |
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[1408] | 534 | }; |
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| 535 | |
---|
[1409] | 536 | template <typename _Item, typename _BoxedIdReader> |
---|
| 537 | class IdReader : public IdReaderBase<_Item> { |
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[1408] | 538 | public: |
---|
| 539 | typedef _Item Item; |
---|
[1409] | 540 | typedef _BoxedIdReader BoxedIdReader; |
---|
| 541 | |
---|
| 542 | const BoxedIdReader& boxedIdReader; |
---|
[1408] | 543 | |
---|
[1409] | 544 | IdReader(const BoxedIdReader& _boxedIdReader) |
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| 545 | : boxedIdReader(_boxedIdReader) {} |
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[1408] | 546 | |
---|
[1409] | 547 | virtual Item read(std::istream& is) const { |
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| 548 | return boxedIdReader.readId(is); |
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[1408] | 549 | } |
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| 550 | }; |
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| 551 | |
---|
| 552 | class ValueReaderBase { |
---|
| 553 | public: |
---|
| 554 | virtual void read(std::istream&) {}; |
---|
| 555 | }; |
---|
| 556 | |
---|
| 557 | template <typename _Value, typename _Reader> |
---|
| 558 | class ValueReader : public ValueReaderBase { |
---|
| 559 | public: |
---|
| 560 | typedef _Value Value; |
---|
| 561 | typedef _Reader Reader; |
---|
| 562 | |
---|
| 563 | ValueReader(Value& _value, const Reader& _reader) |
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| 564 | : value(_value), reader(_reader) {} |
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| 565 | |
---|
| 566 | virtual void read(std::istream& is) { |
---|
| 567 | reader.read(is, value); |
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| 568 | } |
---|
| 569 | private: |
---|
| 570 | Value& value; |
---|
| 571 | Reader reader; |
---|
| 572 | }; |
---|
| 573 | |
---|
| 574 | }; |
---|
| 575 | |
---|
[1409] | 576 | /// \ingroup io_group |
---|
| 577 | /// \brief SectionReader for reading a graph's nodeset. |
---|
| 578 | /// |
---|
| 579 | /// The lemon format can store multiple graph nodesets with several maps. |
---|
| 580 | /// The nodeset section's header line is \c \@nodeset \c nodeset_id, but the |
---|
| 581 | /// \c nodeset_id may be empty. |
---|
| 582 | /// |
---|
| 583 | /// The first line of the section contains the names of the maps separated |
---|
| 584 | /// with white spaces. Each next lines describes a node in the nodeset, and |
---|
| 585 | /// contains the mapped values for each map. |
---|
| 586 | /// |
---|
| 587 | /// If the nodeset contains an \c "id" named map then it will be regarded |
---|
| 588 | /// as id map. This map should contain only unique values and when the |
---|
| 589 | /// \c readId() member will read a value from the given stream it will |
---|
| 590 | /// give back that node which is mapped to this value. |
---|
| 591 | /// |
---|
| 592 | /// \relates LemonReader |
---|
[1408] | 593 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
| 594 | class NodeSetReader : public CommonSectionReaderBase { |
---|
| 595 | typedef CommonSectionReaderBase Parent; |
---|
| 596 | public: |
---|
| 597 | |
---|
| 598 | typedef _Graph Graph; |
---|
| 599 | typedef _Traits Traits; |
---|
| 600 | typedef typename Graph::Node Item; |
---|
| 601 | typedef typename Traits::Skipper DefaultSkipper; |
---|
| 602 | |
---|
[1409] | 603 | /// \brief Constructor. |
---|
| 604 | /// |
---|
| 605 | /// Constructor for NodeSetReader. It creates the NodeSetReader and |
---|
| 606 | /// attach it into the given LemonReader. The nodeset reader will |
---|
| 607 | /// add the readed nodes to the given Graph. The reader will read |
---|
| 608 | /// the section when the \c section_id and the \c _id are the same. |
---|
[1421] | 609 | NodeSetReader(LemonReader& _reader, |
---|
| 610 | typename SmartParameter<Graph>::Type _graph, |
---|
[1408] | 611 | const std::string& _id = std::string(), |
---|
[1409] | 612 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
| 613 | : Parent(_reader), graph(_graph), id(_id), skipper(_skipper) {} |
---|
[1408] | 614 | |
---|
[1409] | 615 | |
---|
| 616 | /// \brief Destructor. |
---|
| 617 | /// |
---|
| 618 | /// Destructor for NodeSetReader. |
---|
[1408] | 619 | virtual ~NodeSetReader() { |
---|
| 620 | for (typename MapReaders::iterator it = readers.begin(); |
---|
| 621 | it != readers.end(); ++it) { |
---|
| 622 | delete it->second; |
---|
| 623 | } |
---|
| 624 | } |
---|
| 625 | |
---|
| 626 | private: |
---|
| 627 | NodeSetReader(const NodeSetReader&); |
---|
| 628 | void operator=(const NodeSetReader&); |
---|
| 629 | |
---|
| 630 | public: |
---|
| 631 | |
---|
| 632 | /// \brief Add a new node map reader command for the reader. |
---|
| 633 | /// |
---|
| 634 | /// Add a new node map reader command for the reader. |
---|
| 635 | template <typename Map> |
---|
[1421] | 636 | NodeSetReader& readNodeMap(std::string name, Map& map) { |
---|
| 637 | return _readMap< |
---|
| 638 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 639 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 640 | } |
---|
| 641 | |
---|
| 642 | template <typename Map> |
---|
| 643 | NodeSetReader& readNodeMap(std::string name, const Map& map) { |
---|
| 644 | return _readMap< |
---|
| 645 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 646 | typename SmartParameter<Map>::Type>(name, map); |
---|
[1408] | 647 | } |
---|
| 648 | |
---|
| 649 | /// \brief Add a new node map reader command for the reader. |
---|
| 650 | /// |
---|
| 651 | /// Add a new node map reader command for the reader. |
---|
| 652 | template <typename Reader, typename Map> |
---|
[1421] | 653 | NodeSetReader& readNodeMap(std::string name, Map& map, |
---|
| 654 | const Reader& reader = Reader()) { |
---|
| 655 | return _readMap< |
---|
| 656 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 657 | typename SmartParameter<Map>::Type>(name, map, reader); |
---|
| 658 | } |
---|
| 659 | |
---|
| 660 | template <typename Reader, typename Map> |
---|
| 661 | NodeSetReader& readNodeMap(std::string name, const Map& map, |
---|
| 662 | const Reader& reader = Reader()) { |
---|
| 663 | return _readMap< |
---|
| 664 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 665 | typename SmartParameter<Map>::Type>(name, map, reader); |
---|
| 666 | } |
---|
| 667 | |
---|
| 668 | private: |
---|
| 669 | |
---|
| 670 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 671 | NodeSetReader& _readMap(std::string name, MapParameter map, |
---|
| 672 | const Reader& reader = Reader()) { |
---|
[1408] | 673 | if (readers.find(name) != readers.end()) { |
---|
| 674 | ErrorMessage msg; |
---|
| 675 | msg << "Multiple read rule for node map: " << name; |
---|
| 676 | throw IOParameterError(msg.message()); |
---|
| 677 | } |
---|
| 678 | readers.insert( |
---|
| 679 | make_pair(name, new MapReader<Item, Map, Reader>(map, reader))); |
---|
| 680 | return *this; |
---|
| 681 | } |
---|
| 682 | |
---|
[1421] | 683 | public: |
---|
| 684 | |
---|
[1408] | 685 | /// \brief Add a new node map skipper command for the reader. |
---|
| 686 | /// |
---|
| 687 | /// Add a new node map skipper command for the reader. |
---|
| 688 | template <typename Reader> |
---|
[1421] | 689 | NodeSetReader& skipNodeMap(std::string name, |
---|
[1408] | 690 | const Reader& reader = Reader()) { |
---|
| 691 | if (readers.find(name) != readers.end()) { |
---|
| 692 | ErrorMessage msg; |
---|
| 693 | msg << "Multiple read rule for node map: " << name; |
---|
| 694 | throw IOParameterError(msg.message()); |
---|
| 695 | } |
---|
| 696 | readers.insert(make_pair(name, new SkipReader<Item, Reader>(reader))); |
---|
| 697 | return *this; |
---|
| 698 | } |
---|
| 699 | |
---|
[1409] | 700 | protected: |
---|
| 701 | |
---|
| 702 | /// \brief Gives back true when the SectionReader can process |
---|
| 703 | /// the section with the given header line. |
---|
| 704 | /// |
---|
[1421] | 705 | /// It gives back true when the header line starts with \c \@nodeset, |
---|
[1409] | 706 | /// and the header line's id and the nodeset's id are the same. |
---|
[1408] | 707 | virtual bool header(const std::string& line) { |
---|
| 708 | std::istringstream ls(line); |
---|
| 709 | std::string command; |
---|
| 710 | std::string name; |
---|
| 711 | ls >> command >> name; |
---|
| 712 | return command == "@nodeset" && name == id; |
---|
| 713 | } |
---|
| 714 | |
---|
[1409] | 715 | /// \brief Reader function of the section. |
---|
| 716 | /// |
---|
| 717 | /// It reads the content of the section. |
---|
[1408] | 718 | virtual void read(std::istream& is) { |
---|
| 719 | std::vector<ReaderBase<Item>* > index; |
---|
| 720 | std::string line; |
---|
| 721 | |
---|
| 722 | getline(is, line); |
---|
| 723 | std::istringstream ls(line); |
---|
| 724 | while (ls >> id) { |
---|
| 725 | typename MapReaders::iterator it = readers.find(id); |
---|
| 726 | if (it != readers.end()) { |
---|
| 727 | index.push_back(it->second); |
---|
| 728 | } else { |
---|
| 729 | index.push_back(&skipper); |
---|
| 730 | } |
---|
| 731 | if (id == "id" && inverter.get() == 0) { |
---|
| 732 | inverter.reset(index.back()->getInverter()); |
---|
| 733 | index.back() = inverter.get(); |
---|
| 734 | } |
---|
| 735 | } |
---|
| 736 | while (getline(is, line)) { |
---|
| 737 | typename Graph::Node node = graph.addNode(); |
---|
| 738 | std::istringstream ls(line); |
---|
| 739 | for (int i = 0; i < (int)index.size(); ++i) { |
---|
| 740 | index[i]->read(ls, node); |
---|
| 741 | } |
---|
| 742 | } |
---|
| 743 | } |
---|
| 744 | |
---|
[1409] | 745 | public: |
---|
| 746 | |
---|
| 747 | /// \brief Returns true if the nodeset can give back the node by its id. |
---|
| 748 | /// |
---|
| 749 | /// Returns true if the nodeset can give back the node by its id. |
---|
| 750 | /// It is possible only if an "id" named map was read. |
---|
| 751 | bool isIdReader() const { |
---|
[1408] | 752 | return inverter.get() != 0; |
---|
| 753 | } |
---|
| 754 | |
---|
[1409] | 755 | /// \brief Gives back the node by its id. |
---|
| 756 | /// |
---|
| 757 | /// It reads an id from the stream and gives back which node belongs to |
---|
| 758 | /// it. It is possible only if there was read an "id" named map. |
---|
[1421] | 759 | Item readId(std::istream& is) const { |
---|
[1408] | 760 | return inverter->read(is); |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | private: |
---|
| 764 | |
---|
| 765 | typedef std::map<std::string, ReaderBase<Item>*> MapReaders; |
---|
| 766 | MapReaders readers; |
---|
| 767 | |
---|
[1421] | 768 | typename SmartReference<Graph>::Type graph; |
---|
[1408] | 769 | std::string id; |
---|
| 770 | SkipReader<Item, DefaultSkipper> skipper; |
---|
| 771 | |
---|
| 772 | std::auto_ptr<InverterBase<Item> > inverter; |
---|
| 773 | }; |
---|
| 774 | |
---|
[1409] | 775 | /// \ingroup io_group |
---|
| 776 | /// \brief SectionReader for reading a graph's edgeset. |
---|
| 777 | /// |
---|
| 778 | /// The lemon format can store multiple graph edgesets with several maps. |
---|
| 779 | /// The edgeset section's header line is \c \@edgeset \c edgeset_id, but the |
---|
| 780 | /// \c edgeset_id may be empty. |
---|
| 781 | /// |
---|
| 782 | /// The first line of the section contains the names of the maps separated |
---|
[1421] | 783 | /// with white spaces. Each next lines describes an edge in the edgeset. The |
---|
| 784 | /// line contains the source and the target nodes' id and the mapped |
---|
| 785 | /// values for each map. |
---|
[1409] | 786 | /// |
---|
| 787 | /// If the edgeset contains an \c "id" named map then it will be regarded |
---|
| 788 | /// as id map. This map should contain only unique values and when the |
---|
| 789 | /// \c readId() member will read a value from the given stream it will |
---|
| 790 | /// give back that edge which is mapped to this value. |
---|
| 791 | /// |
---|
| 792 | /// The edgeset reader needs a node id reader to identify which nodes |
---|
| 793 | /// have to be connected. If a NodeSetReader reads an "id" named map, |
---|
| 794 | /// it will be able to resolve the nodes by ids. |
---|
| 795 | /// |
---|
| 796 | /// \relates LemonReader |
---|
[1408] | 797 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
| 798 | class EdgeSetReader : public CommonSectionReaderBase { |
---|
| 799 | typedef CommonSectionReaderBase Parent; |
---|
| 800 | public: |
---|
| 801 | |
---|
| 802 | typedef _Graph Graph; |
---|
| 803 | typedef _Traits Traits; |
---|
| 804 | typedef typename Graph::Edge Item; |
---|
| 805 | typedef typename Traits::Skipper DefaultSkipper; |
---|
| 806 | |
---|
[1409] | 807 | /// \brief Constructor. |
---|
| 808 | /// |
---|
| 809 | /// Constructor for EdgeSetReader. It creates the EdgeSetReader and |
---|
| 810 | /// attach it into the given LemonReader. The edgeset reader will |
---|
| 811 | /// add the readed edges to the given Graph. It will use the given |
---|
| 812 | /// node id reader to read the source and target nodes of the edges. |
---|
| 813 | /// The reader will read the section only if the \c _id and the |
---|
| 814 | /// \c edgset_id are the same. |
---|
| 815 | template <typename NodeIdReader> |
---|
[1421] | 816 | EdgeSetReader(LemonReader& _reader, |
---|
| 817 | typename SmartParameter<Graph>::Type _graph, |
---|
[1409] | 818 | const NodeIdReader& _nodeIdReader, |
---|
[1408] | 819 | const std::string& _id = std::string(), |
---|
[1409] | 820 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
| 821 | : Parent(_reader), graph(_graph), id(_id), skipper(_skipper), |
---|
| 822 | nodeIdReader(new IdReader<typename Graph::Node, NodeIdReader> |
---|
| 823 | (_nodeIdReader)) {} |
---|
[1408] | 824 | |
---|
[1409] | 825 | /// \brief Destructor. |
---|
| 826 | /// |
---|
| 827 | /// Destructor for EdgeSetReader. |
---|
[1408] | 828 | virtual ~EdgeSetReader() { |
---|
| 829 | for (typename MapReaders::iterator it = readers.begin(); |
---|
| 830 | it != readers.end(); ++it) { |
---|
| 831 | delete it->second; |
---|
| 832 | } |
---|
| 833 | } |
---|
| 834 | |
---|
| 835 | private: |
---|
| 836 | EdgeSetReader(const EdgeSetReader&); |
---|
| 837 | void operator=(const EdgeSetReader&); |
---|
| 838 | |
---|
| 839 | public: |
---|
| 840 | |
---|
[1409] | 841 | /// \brief Add a new edge map reader command for the reader. |
---|
[1408] | 842 | /// |
---|
[1409] | 843 | /// Add a new edge map reader command for the reader. |
---|
[1408] | 844 | template <typename Map> |
---|
[1421] | 845 | EdgeSetReader& readEdgeMap(std::string name, Map& map) { |
---|
| 846 | return _readMap< |
---|
| 847 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 848 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 849 | } |
---|
| 850 | |
---|
| 851 | template <typename Map> |
---|
| 852 | EdgeSetReader& readEdgeMap(std::string name, const Map& map) { |
---|
| 853 | return _readMap< |
---|
| 854 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 855 | typename SmartParameter<Map>::Type>(name, map); |
---|
[1408] | 856 | } |
---|
| 857 | |
---|
[1409] | 858 | /// \brief Add a new edge map reader command for the reader. |
---|
[1408] | 859 | /// |
---|
[1409] | 860 | /// Add a new edge map reader command for the reader. |
---|
[1408] | 861 | template <typename Reader, typename Map> |
---|
[1421] | 862 | EdgeSetReader& readEdgeMap(std::string name, Map& map, |
---|
| 863 | const Reader& reader = Reader()) { |
---|
| 864 | return _readMap< |
---|
| 865 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 866 | typename SmartParameter<Map>::Type>(name, map, reader); |
---|
| 867 | } |
---|
| 868 | |
---|
| 869 | template <typename Reader, typename Map> |
---|
| 870 | EdgeSetReader& readEdgeMap(std::string name, const Map& map, |
---|
| 871 | const Reader& reader = Reader()) { |
---|
| 872 | return _readMap< |
---|
| 873 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 874 | typename SmartParameter<Map>::Type>(name, map, reader); |
---|
| 875 | } |
---|
| 876 | |
---|
| 877 | private: |
---|
| 878 | |
---|
| 879 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 880 | EdgeSetReader& _readMap(std::string name, MapParameter map, |
---|
| 881 | const Reader& reader = Reader()) { |
---|
[1408] | 882 | if (readers.find(name) != readers.end()) { |
---|
| 883 | ErrorMessage msg; |
---|
| 884 | msg << "Multiple read rule for edge map: " << name; |
---|
| 885 | throw IOParameterError(msg.message()); |
---|
| 886 | } |
---|
| 887 | readers.insert( |
---|
| 888 | make_pair(name, new MapReader<Item, Map, Reader>(map, reader))); |
---|
| 889 | return *this; |
---|
| 890 | } |
---|
| 891 | |
---|
[1421] | 892 | public: |
---|
| 893 | |
---|
[1409] | 894 | /// \brief Add a new edge map skipper command for the reader. |
---|
[1408] | 895 | /// |
---|
[1409] | 896 | /// Add a new edge map skipper command for the reader. |
---|
[1408] | 897 | template <typename Reader> |
---|
[1421] | 898 | EdgeSetReader& skipEdgeMap(std::string name, |
---|
| 899 | const Reader& reader = Reader()) { |
---|
[1408] | 900 | if (readers.find(name) != readers.end()) { |
---|
| 901 | ErrorMessage msg; |
---|
[1421] | 902 | msg << "Multiple read rule for edge map: " << name; |
---|
[1408] | 903 | throw IOParameterError(msg.message()); |
---|
| 904 | } |
---|
| 905 | readers.insert(make_pair(name, new SkipReader<Item, Reader>(reader))); |
---|
| 906 | return *this; |
---|
| 907 | } |
---|
| 908 | |
---|
[1409] | 909 | protected: |
---|
| 910 | |
---|
| 911 | /// \brief Gives back true when the SectionReader can process |
---|
| 912 | /// the section with the given header line. |
---|
| 913 | /// |
---|
[1421] | 914 | /// It gives back true when the header line starts with \c \@edgeset, |
---|
[1409] | 915 | /// and the header line's id and the edgeset's id are the same. |
---|
[1408] | 916 | virtual bool header(const std::string& line) { |
---|
| 917 | std::istringstream ls(line); |
---|
| 918 | std::string command; |
---|
| 919 | std::string name; |
---|
| 920 | ls >> command >> name; |
---|
| 921 | return command == "@edgeset" && name == id; |
---|
| 922 | } |
---|
| 923 | |
---|
[1409] | 924 | /// \brief Reader function of the section. |
---|
| 925 | /// |
---|
| 926 | /// It reads the content of the section. |
---|
[1408] | 927 | virtual void read(std::istream& is) { |
---|
| 928 | std::vector<ReaderBase<Item>* > index; |
---|
| 929 | std::string line; |
---|
| 930 | |
---|
| 931 | getline(is, line); |
---|
| 932 | std::istringstream ls(line); |
---|
| 933 | while (ls >> id) { |
---|
| 934 | typename MapReaders::iterator it = readers.find(id); |
---|
| 935 | if (it != readers.end()) { |
---|
| 936 | index.push_back(it->second); |
---|
| 937 | } else { |
---|
| 938 | index.push_back(&skipper); |
---|
| 939 | } |
---|
| 940 | if (id == "id" && inverter.get() == 0) { |
---|
| 941 | inverter.reset(index.back()->getInverter()); |
---|
| 942 | index.back() = inverter.get(); |
---|
| 943 | } |
---|
| 944 | } |
---|
| 945 | while (getline(is, line)) { |
---|
| 946 | std::istringstream ls(line); |
---|
[1409] | 947 | typename Graph::Node from = nodeIdReader->read(ls); |
---|
| 948 | typename Graph::Node to = nodeIdReader->read(ls); |
---|
[1408] | 949 | typename Graph::Edge edge = graph.addEdge(from, to); |
---|
| 950 | for (int i = 0; i < (int)index.size(); ++i) { |
---|
| 951 | index[i]->read(ls, edge); |
---|
| 952 | } |
---|
| 953 | } |
---|
| 954 | } |
---|
| 955 | |
---|
[1409] | 956 | public: |
---|
| 957 | |
---|
| 958 | /// \brief Returns true if the edgeset can give back the edge by its id. |
---|
| 959 | /// |
---|
| 960 | /// Returns true if the edgeset can give back the edge by its id. |
---|
| 961 | /// It is possible only if an "id" named map was read. |
---|
| 962 | bool isIdReader() const { |
---|
[1408] | 963 | return inverter.get() != 0; |
---|
| 964 | } |
---|
| 965 | |
---|
[1409] | 966 | /// \brief Gives back the edge by its id. |
---|
| 967 | /// |
---|
| 968 | /// It reads an id from the stream and gives back which edge belongs to |
---|
| 969 | /// it. It is possible only if there was read an "id" named map. |
---|
[1421] | 970 | Item readId(std::istream& is) const { |
---|
[1408] | 971 | return inverter->read(is); |
---|
| 972 | } |
---|
| 973 | |
---|
| 974 | private: |
---|
| 975 | |
---|
| 976 | typedef std::map<std::string, ReaderBase<Item>*> MapReaders; |
---|
| 977 | MapReaders readers; |
---|
| 978 | |
---|
[1421] | 979 | typename SmartReference<Graph>::Type graph; |
---|
| 980 | std::string id; |
---|
| 981 | SkipReader<Item, DefaultSkipper> skipper; |
---|
| 982 | |
---|
| 983 | std::auto_ptr<InverterBase<Item> > inverter; |
---|
| 984 | std::auto_ptr<IdReaderBase<typename Graph::Node> > nodeIdReader; |
---|
| 985 | }; |
---|
| 986 | |
---|
| 987 | /// \ingroup io_group |
---|
| 988 | /// \brief SectionReader for reading a undirected graph's edgeset. |
---|
| 989 | /// |
---|
| 990 | /// The lemon format can store multiple undirected edgesets with several |
---|
| 991 | /// maps. The undirected edgeset section's header line is \c \@undiredgeset |
---|
| 992 | /// \c undiredgeset_id, but the \c undiredgeset_id may be empty. |
---|
| 993 | /// |
---|
| 994 | /// The first line of the section contains the names of the maps separated |
---|
| 995 | /// with white spaces. Each next lines describes an edge in the edgeset. The |
---|
| 996 | /// line contains the connected nodes' id and the mapped values for each map. |
---|
| 997 | /// |
---|
| 998 | /// The section can handle the directed as a syntactical sugar. Two |
---|
| 999 | /// undirected edge map describes one directed edge map. This two maps |
---|
| 1000 | /// are the forward map and the backward map and the names of this map |
---|
| 1001 | /// is near the same just with a prefix \c '+' or \c '-' character |
---|
| 1002 | /// difference. |
---|
| 1003 | /// |
---|
| 1004 | /// If the edgeset contains an \c "id" named map then it will be regarded |
---|
| 1005 | /// as id map. This map should contain only unique values and when the |
---|
| 1006 | /// \c readId() member will read a value from the given stream it will |
---|
| 1007 | /// give back that undiricted edge which is mapped to this value. |
---|
| 1008 | /// |
---|
| 1009 | /// The undirected edgeset reader needs a node id reader to identify which |
---|
| 1010 | /// nodes have to be connected. If a NodeSetReader reads an "id" named map, |
---|
| 1011 | /// it will be able to resolve the nodes by ids. |
---|
| 1012 | /// |
---|
| 1013 | /// \relates LemonReader |
---|
| 1014 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
| 1015 | class UndirEdgeSetReader : public CommonSectionReaderBase { |
---|
| 1016 | typedef CommonSectionReaderBase Parent; |
---|
| 1017 | public: |
---|
| 1018 | |
---|
| 1019 | typedef _Graph Graph; |
---|
| 1020 | typedef _Traits Traits; |
---|
| 1021 | typedef typename Graph::UndirEdge Item; |
---|
| 1022 | typedef typename Traits::Skipper DefaultSkipper; |
---|
| 1023 | |
---|
| 1024 | /// \brief Constructor. |
---|
| 1025 | /// |
---|
| 1026 | /// Constructor for UndirEdgeSetReader. It creates the UndirEdgeSetReader |
---|
| 1027 | /// and attach it into the given LemonReader. The undirected edgeset |
---|
| 1028 | /// reader will add the readed undirected edges to the given Graph. It |
---|
| 1029 | /// will use the given node id reader to read the source and target |
---|
| 1030 | /// nodes of the edges. The reader will read the section only if the |
---|
| 1031 | /// \c _id and the \c undiredgset_id are the same. |
---|
| 1032 | template <typename NodeIdReader> |
---|
| 1033 | UndirEdgeSetReader(LemonReader& _reader, |
---|
| 1034 | typename SmartParameter<Graph>::Type _graph, |
---|
| 1035 | const NodeIdReader& _nodeIdReader, |
---|
| 1036 | const std::string& _id = std::string(), |
---|
| 1037 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
| 1038 | : Parent(_reader), graph(_graph), id(_id), skipper(_skipper), |
---|
| 1039 | nodeIdReader(new IdReader<typename Graph::Node, NodeIdReader> |
---|
| 1040 | (_nodeIdReader)) {} |
---|
| 1041 | |
---|
| 1042 | /// \brief Destructor. |
---|
| 1043 | /// |
---|
| 1044 | /// Destructor for UndirEdgeSetReader. |
---|
| 1045 | virtual ~UndirEdgeSetReader() { |
---|
| 1046 | for (typename MapReaders::iterator it = readers.begin(); |
---|
| 1047 | it != readers.end(); ++it) { |
---|
| 1048 | delete it->second; |
---|
| 1049 | } |
---|
| 1050 | } |
---|
| 1051 | |
---|
| 1052 | private: |
---|
| 1053 | UndirEdgeSetReader(const UndirEdgeSetReader&); |
---|
| 1054 | void operator=(const UndirEdgeSetReader&); |
---|
| 1055 | |
---|
| 1056 | public: |
---|
| 1057 | |
---|
| 1058 | /// \brief Add a new undirected edge map reader command for the reader. |
---|
| 1059 | /// |
---|
| 1060 | /// Add a new edge undirected map reader command for the reader. |
---|
| 1061 | template <typename Map> |
---|
| 1062 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, Map& map) { |
---|
| 1063 | return _readMap< |
---|
| 1064 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1065 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1066 | } |
---|
| 1067 | |
---|
| 1068 | template <typename Map> |
---|
| 1069 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, const Map& map) { |
---|
| 1070 | return _readMap< |
---|
| 1071 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1072 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1073 | } |
---|
| 1074 | |
---|
| 1075 | /// \brief Add a new undirected edge map reader command for the reader. |
---|
| 1076 | /// |
---|
| 1077 | /// Add a new edge undirected map reader command for the reader. |
---|
| 1078 | template <typename Reader, typename Map> |
---|
| 1079 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, Map& map, |
---|
| 1080 | const Reader& reader = Reader()) { |
---|
| 1081 | return _readMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 1082 | (name, map, reader); |
---|
| 1083 | } |
---|
| 1084 | |
---|
| 1085 | template <typename Reader, typename Map> |
---|
| 1086 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, const Map& map, |
---|
| 1087 | const Reader& reader = Reader()) { |
---|
| 1088 | return _readMap<Reader, Map, typename SmartParameter<Map>::Type > |
---|
| 1089 | (name, map, reader); |
---|
| 1090 | } |
---|
| 1091 | |
---|
| 1092 | private: |
---|
| 1093 | |
---|
| 1094 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 1095 | UndirEdgeSetReader& _readMap(std::string name, MapParameter map, |
---|
| 1096 | const Reader& reader = Reader()) { |
---|
| 1097 | if (readers.find(name) != readers.end()) { |
---|
| 1098 | ErrorMessage msg; |
---|
| 1099 | msg << "Multiple read rule for edge map: " << name; |
---|
| 1100 | throw IOParameterError(msg.message()); |
---|
| 1101 | } |
---|
| 1102 | readers.insert( |
---|
| 1103 | make_pair(name, new MapReader<Item, Map, Reader>(map, reader))); |
---|
| 1104 | return *this; |
---|
| 1105 | } |
---|
| 1106 | |
---|
| 1107 | public: |
---|
| 1108 | |
---|
| 1109 | /// \brief Add a new undirected edge map skipper command for the reader. |
---|
| 1110 | /// |
---|
| 1111 | /// Add a new undirected edge map skipper command for the reader. |
---|
| 1112 | template <typename Reader> |
---|
| 1113 | UndirEdgeSetReader& skipUndirEdgeMap(std::string name, |
---|
| 1114 | const Reader& reader = Reader()) { |
---|
| 1115 | if (readers.find(name) != readers.end()) { |
---|
| 1116 | ErrorMessage msg; |
---|
| 1117 | msg << "Multiple read rule for node map: " << name; |
---|
| 1118 | throw IOParameterError(msg.message()); |
---|
| 1119 | } |
---|
| 1120 | readers.insert(make_pair(name, new SkipReader<Item, Reader>(reader))); |
---|
| 1121 | return *this; |
---|
| 1122 | } |
---|
| 1123 | |
---|
| 1124 | /// \brief Add a new directed edge map reader command for the reader. |
---|
| 1125 | /// |
---|
| 1126 | /// Add a new directed edge map reader command for the reader. |
---|
| 1127 | template <typename Map> |
---|
| 1128 | UndirEdgeSetReader& readEdgeMap(std::string name, Map& map) { |
---|
| 1129 | return _readDirMap< |
---|
| 1130 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1131 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1132 | } |
---|
| 1133 | |
---|
| 1134 | template <typename Map> |
---|
| 1135 | UndirEdgeSetReader& readEdgeMap(std::string name, const Map& map) { |
---|
| 1136 | return _readDirMap< |
---|
| 1137 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1138 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1139 | } |
---|
| 1140 | |
---|
| 1141 | /// \brief Add a new directed edge map reader command for the reader. |
---|
| 1142 | /// |
---|
| 1143 | /// Add a new directed edge map reader command for the reader. |
---|
| 1144 | template <typename Reader, typename Map> |
---|
| 1145 | UndirEdgeSetReader& readEdgeMap(std::string name, Map& map, |
---|
| 1146 | const Reader& reader = Reader()) { |
---|
| 1147 | return _readDirMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 1148 | (name, map, reader); |
---|
| 1149 | } |
---|
| 1150 | |
---|
| 1151 | template <typename Reader, typename Map> |
---|
| 1152 | UndirEdgeSetReader& readEdgeMap(std::string name, const Map& map, |
---|
| 1153 | const Reader& reader = Reader()) { |
---|
| 1154 | return _readDirMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 1155 | (name, map, reader); |
---|
| 1156 | } |
---|
| 1157 | |
---|
| 1158 | private: |
---|
| 1159 | |
---|
| 1160 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 1161 | UndirEdgeSetReader& _readDirMap(std::string name, MapParameter map, |
---|
| 1162 | const Reader& reader = Reader()) { |
---|
| 1163 | readMap("+" + name, |
---|
| 1164 | _reader_bits::writeComposeMap(map, forwardMap(graph)), reader); |
---|
| 1165 | readMap("-" + name, |
---|
| 1166 | _reader_bits::writeComposeMap(map, backwardMap(graph)), reader); |
---|
| 1167 | return *this; |
---|
| 1168 | } |
---|
| 1169 | |
---|
| 1170 | public: |
---|
| 1171 | |
---|
| 1172 | /// \brief Add a new directed edge map skipper command for the reader. |
---|
| 1173 | /// |
---|
| 1174 | /// Add a new directed edge map skipper command for the reader. |
---|
| 1175 | template <typename Reader> |
---|
| 1176 | UndirEdgeSetReader& skipEdgeMap(std::string name, |
---|
| 1177 | const Reader& reader = Reader()) { |
---|
| 1178 | skipMap("+" + name, reader); |
---|
| 1179 | skipMap("-" + name, reader); |
---|
| 1180 | return *this; |
---|
| 1181 | } |
---|
| 1182 | |
---|
| 1183 | protected: |
---|
| 1184 | |
---|
| 1185 | /// \brief Gives back true when the SectionReader can process |
---|
| 1186 | /// the section with the given header line. |
---|
| 1187 | /// |
---|
| 1188 | /// It gives back true when the header line starts with \c \@undiredgeset, |
---|
| 1189 | /// and the header line's id and the edgeset's id are the same. |
---|
| 1190 | virtual bool header(const std::string& line) { |
---|
| 1191 | std::istringstream ls(line); |
---|
| 1192 | std::string command; |
---|
| 1193 | std::string name; |
---|
| 1194 | ls >> command >> name; |
---|
| 1195 | return command == "@undiredgeset" && name == id; |
---|
| 1196 | } |
---|
| 1197 | |
---|
| 1198 | /// \brief Reader function of the section. |
---|
| 1199 | /// |
---|
| 1200 | /// It reads the content of the section. |
---|
| 1201 | virtual void read(std::istream& is) { |
---|
| 1202 | std::vector<ReaderBase<Item>* > index; |
---|
| 1203 | std::string line; |
---|
| 1204 | |
---|
| 1205 | getline(is, line); |
---|
| 1206 | std::istringstream ls(line); |
---|
| 1207 | while (ls >> id) { |
---|
| 1208 | typename MapReaders::iterator it = readers.find(id); |
---|
| 1209 | if (it != readers.end()) { |
---|
| 1210 | index.push_back(it->second); |
---|
| 1211 | } else { |
---|
| 1212 | index.push_back(&skipper); |
---|
| 1213 | } |
---|
| 1214 | if (id == "id" && inverter.get() == 0) { |
---|
| 1215 | inverter.reset(index.back()->getInverter()); |
---|
| 1216 | index.back() = inverter.get(); |
---|
| 1217 | } |
---|
| 1218 | } |
---|
| 1219 | while (getline(is, line)) { |
---|
| 1220 | std::istringstream ls(line); |
---|
| 1221 | typename Graph::Node from = nodeIdReader->read(ls); |
---|
| 1222 | typename Graph::Node to = nodeIdReader->read(ls); |
---|
| 1223 | typename Graph::UndirEdge edge = graph.addEdge(from, to); |
---|
| 1224 | for (int i = 0; i < (int)index.size(); ++i) { |
---|
| 1225 | index[i]->read(ls, edge); |
---|
| 1226 | } |
---|
| 1227 | } |
---|
| 1228 | } |
---|
| 1229 | |
---|
| 1230 | public: |
---|
| 1231 | |
---|
| 1232 | /// \brief Returns true if the edgeset can give back the edge by its id. |
---|
| 1233 | /// |
---|
| 1234 | /// Returns true if the edgeset can give back the undirected edge by its |
---|
| 1235 | /// id. It is possible only if an "id" named map was read. |
---|
| 1236 | bool isIdReader() const { |
---|
| 1237 | return inverter.get() != 0; |
---|
| 1238 | } |
---|
| 1239 | |
---|
| 1240 | /// \brief Gives back the undirected edge by its id. |
---|
| 1241 | /// |
---|
| 1242 | /// It reads an id from the stream and gives back which undirected edge |
---|
| 1243 | /// belongs to it. It is possible only if there was read an "id" named map. |
---|
| 1244 | Item readId(std::istream& is) const { |
---|
| 1245 | return inverter->read(is); |
---|
| 1246 | } |
---|
| 1247 | |
---|
| 1248 | private: |
---|
| 1249 | |
---|
| 1250 | typedef std::map<std::string, ReaderBase<Item>*> MapReaders; |
---|
| 1251 | MapReaders readers; |
---|
| 1252 | |
---|
| 1253 | typename SmartReference<Graph>::Type graph; |
---|
[1408] | 1254 | std::string id; |
---|
| 1255 | SkipReader<Item, DefaultSkipper> skipper; |
---|
| 1256 | |
---|
| 1257 | std::auto_ptr<InverterBase<Item> > inverter; |
---|
[1409] | 1258 | std::auto_ptr<IdReaderBase<typename Graph::Node> > nodeIdReader; |
---|
[1408] | 1259 | }; |
---|
| 1260 | |
---|
[1409] | 1261 | /// \ingroup io_group |
---|
| 1262 | /// \brief SectionReader for reading labeled nodes. |
---|
| 1263 | /// |
---|
| 1264 | /// The nodes section's header line is \c \@nodes \c nodes_id, but the |
---|
| 1265 | /// \c nodes_id may be empty. |
---|
| 1266 | /// |
---|
| 1267 | /// Each line in the section contains the name of the node |
---|
| 1268 | /// and then the node id. |
---|
| 1269 | /// |
---|
| 1270 | /// \relates LemonReader |
---|
| 1271 | template <typename _Graph> |
---|
| 1272 | class NodeReader : public CommonSectionReaderBase { |
---|
| 1273 | typedef CommonSectionReaderBase Parent; |
---|
| 1274 | typedef _Graph Graph; |
---|
| 1275 | typedef typename Graph::Node Item; |
---|
| 1276 | public: |
---|
| 1277 | |
---|
| 1278 | /// \brief Constructor. |
---|
| 1279 | /// |
---|
| 1280 | /// Constructor for NodeReader. It creates the NodeReader and |
---|
| 1281 | /// attach it into the given LemonReader. It will use the given |
---|
| 1282 | /// node id reader to give back the nodes. The reader will read the |
---|
| 1283 | /// section only if the \c _id and the \c nodes_id are the same. |
---|
| 1284 | template <typename _IdReader> |
---|
| 1285 | NodeReader(LemonReader& _reader, const _IdReader& _idReader, |
---|
| 1286 | const std::string& _id = std::string()) |
---|
| 1287 | : Parent(_reader), id(_id), |
---|
| 1288 | idReader(new IdReader<typename Graph::Node, _IdReader>(_idReader)) {} |
---|
[1408] | 1289 | |
---|
[1409] | 1290 | /// \brief Destructor. |
---|
| 1291 | /// |
---|
| 1292 | /// Destructor for NodeReader. |
---|
| 1293 | virtual ~NodeReader() {} |
---|
| 1294 | |
---|
| 1295 | private: |
---|
| 1296 | NodeReader(const NodeReader&); |
---|
| 1297 | void operator=(const NodeReader&); |
---|
| 1298 | |
---|
| 1299 | public: |
---|
| 1300 | |
---|
| 1301 | /// \brief Add a node reader command for the NodeReader. |
---|
| 1302 | /// |
---|
| 1303 | /// Add a node reader command for the NodeReader. |
---|
| 1304 | void readNode(const std::string& name, Item& item) { |
---|
| 1305 | if (readers.find(name) != readers.end()) { |
---|
| 1306 | ErrorMessage msg; |
---|
| 1307 | msg << "Multiple read rule for node: " << name; |
---|
| 1308 | throw IOParameterError(msg.message()); |
---|
| 1309 | } |
---|
| 1310 | readers.insert(make_pair(name, &item)); |
---|
| 1311 | } |
---|
| 1312 | |
---|
| 1313 | protected: |
---|
| 1314 | |
---|
| 1315 | /// \brief Gives back true when the SectionReader can process |
---|
| 1316 | /// the section with the given header line. |
---|
| 1317 | /// |
---|
[1421] | 1318 | /// It gives back true when the header line start with \c \@nodes, |
---|
[1409] | 1319 | /// and the header line's id and the reader's id are the same. |
---|
| 1320 | virtual bool header(const std::string& line) { |
---|
| 1321 | std::istringstream ls(line); |
---|
| 1322 | std::string command; |
---|
| 1323 | std::string name; |
---|
| 1324 | ls >> command >> name; |
---|
| 1325 | return command == "@nodes" && name == id; |
---|
| 1326 | } |
---|
| 1327 | |
---|
| 1328 | /// \brief Reader function of the section. |
---|
| 1329 | /// |
---|
| 1330 | /// It reads the content of the section. |
---|
| 1331 | virtual void read(std::istream& is) { |
---|
| 1332 | std::string line; |
---|
| 1333 | while (getline(is, line)) { |
---|
| 1334 | std::istringstream ls(line); |
---|
| 1335 | std::string id; |
---|
| 1336 | ls >> id; |
---|
| 1337 | typename ItemReaders::iterator it = readers.find(id); |
---|
| 1338 | if (it != readers.end()) { |
---|
| 1339 | *(it->second) = idReader->read(ls); |
---|
| 1340 | } |
---|
| 1341 | } |
---|
| 1342 | } |
---|
| 1343 | |
---|
| 1344 | private: |
---|
| 1345 | |
---|
| 1346 | std::string id; |
---|
| 1347 | |
---|
| 1348 | typedef std::map<std::string, Item*> ItemReaders; |
---|
| 1349 | ItemReaders readers; |
---|
| 1350 | std::auto_ptr<IdReaderBase<Item> > idReader; |
---|
| 1351 | }; |
---|
| 1352 | |
---|
| 1353 | /// \ingroup io_group |
---|
| 1354 | /// \brief SectionReader for reading labeled edges. |
---|
| 1355 | /// |
---|
| 1356 | /// The edges section's header line is \c \@edges \c edges_id, but the |
---|
| 1357 | /// \c edges_id may be empty. |
---|
| 1358 | /// |
---|
| 1359 | /// Each line in the section contains the name of the edge |
---|
| 1360 | /// and then the edge id. |
---|
| 1361 | /// |
---|
| 1362 | /// \relates LemonReader |
---|
| 1363 | template <typename _Graph> |
---|
| 1364 | class EdgeReader : public CommonSectionReaderBase { |
---|
| 1365 | typedef CommonSectionReaderBase Parent; |
---|
| 1366 | typedef _Graph Graph; |
---|
| 1367 | typedef typename Graph::Edge Item; |
---|
| 1368 | public: |
---|
| 1369 | |
---|
| 1370 | /// \brief Constructor. |
---|
| 1371 | /// |
---|
| 1372 | /// Constructor for EdgeReader. It creates the EdgeReader and |
---|
| 1373 | /// attach it into the given LemonReader. It will use the given |
---|
| 1374 | /// edge id reader to give back the edges. The reader will read the |
---|
[1421] | 1375 | /// section only if the \c _id and the \c edges_id are the same. |
---|
[1409] | 1376 | template <typename _IdReader> |
---|
| 1377 | EdgeReader(LemonReader& _reader, const _IdReader& _idReader, |
---|
| 1378 | const std::string& _id = std::string()) |
---|
| 1379 | : Parent(_reader), id(_id), |
---|
| 1380 | idReader(new IdReader<typename Graph::Edge, _IdReader>(_idReader)) {} |
---|
| 1381 | |
---|
| 1382 | /// \brief Destructor. |
---|
| 1383 | /// |
---|
| 1384 | /// Destructor for EdgeReader. |
---|
| 1385 | virtual ~EdgeReader() {} |
---|
| 1386 | private: |
---|
| 1387 | EdgeReader(const EdgeReader&); |
---|
| 1388 | void operator=(const EdgeReader&); |
---|
| 1389 | |
---|
| 1390 | public: |
---|
| 1391 | |
---|
| 1392 | /// \brief Add an edge reader command for the EdgeReader. |
---|
| 1393 | /// |
---|
| 1394 | /// Add an edge reader command for the EdgeReader. |
---|
| 1395 | void readEdge(const std::string& name, Item& item) { |
---|
| 1396 | if (readers.find(name) != readers.end()) { |
---|
| 1397 | ErrorMessage msg; |
---|
| 1398 | msg << "Multiple read rule for edge: " << name; |
---|
| 1399 | throw IOParameterError(msg.message()); |
---|
| 1400 | } |
---|
| 1401 | readers.insert(make_pair(name, &item)); |
---|
| 1402 | } |
---|
| 1403 | |
---|
| 1404 | protected: |
---|
| 1405 | |
---|
| 1406 | /// \brief Gives back true when the SectionReader can process |
---|
| 1407 | /// the section with the given header line. |
---|
| 1408 | /// |
---|
[1421] | 1409 | /// It gives back true when the header line start with \c \@edges, |
---|
| 1410 | /// and the header line's id and the reader's id are the same. |
---|
| 1411 | virtual bool header(const std::string& line) { |
---|
| 1412 | std::istringstream ls(line); |
---|
| 1413 | std::string command; |
---|
| 1414 | std::string name; |
---|
| 1415 | ls >> command >> name; |
---|
| 1416 | return command == "@edges" && name == id; |
---|
| 1417 | } |
---|
| 1418 | |
---|
| 1419 | /// \brief Reader function of the section. |
---|
| 1420 | /// |
---|
| 1421 | /// It reads the content of the section. |
---|
| 1422 | virtual void read(std::istream& is) { |
---|
| 1423 | std::string line; |
---|
| 1424 | while (getline(is, line)) { |
---|
| 1425 | std::istringstream ls(line); |
---|
| 1426 | std::string id; |
---|
| 1427 | ls >> id; |
---|
| 1428 | typename ItemReaders::iterator it = readers.find(id); |
---|
| 1429 | if (it != readers.end()) { |
---|
| 1430 | *(it->second) = idReader->read(ls); |
---|
| 1431 | } |
---|
| 1432 | } |
---|
| 1433 | } |
---|
| 1434 | |
---|
| 1435 | private: |
---|
| 1436 | |
---|
| 1437 | std::string id; |
---|
| 1438 | |
---|
| 1439 | typedef std::map<std::string, Item*> ItemReaders; |
---|
| 1440 | ItemReaders readers; |
---|
| 1441 | std::auto_ptr<IdReaderBase<Item> > idReader; |
---|
| 1442 | }; |
---|
| 1443 | |
---|
| 1444 | /// \ingroup io_group |
---|
| 1445 | /// \brief SectionReader for reading labeled undirected edges. |
---|
| 1446 | /// |
---|
| 1447 | /// The undirected edges section's header line is \c \@undiredges |
---|
| 1448 | /// \c undiredges_id, but the \c undiredges_id may be empty. |
---|
| 1449 | /// |
---|
| 1450 | /// Each line in the section contains the name of the undirected edge |
---|
| 1451 | /// and then the undirected edge id. |
---|
| 1452 | /// |
---|
| 1453 | /// \relates LemonReader |
---|
| 1454 | template <typename _Graph> |
---|
| 1455 | class UndirEdgeReader : public CommonSectionReaderBase { |
---|
| 1456 | typedef CommonSectionReaderBase Parent; |
---|
| 1457 | typedef _Graph Graph; |
---|
| 1458 | typedef typename Graph::UndirEdge Item; |
---|
| 1459 | public: |
---|
| 1460 | |
---|
| 1461 | /// \brief Constructor. |
---|
| 1462 | /// |
---|
| 1463 | /// Constructor for UndirEdgeReader. It creates the UndirEdgeReader and |
---|
| 1464 | /// attach it into the given LemonReader. It will use the given |
---|
| 1465 | /// undirected edge id reader to give back the edges. The reader will |
---|
| 1466 | /// read the section only if the \c _id and the \c undiredges_id are |
---|
| 1467 | /// the same. |
---|
| 1468 | template <typename _IdReader> |
---|
| 1469 | UndirEdgeReader(LemonReader& _reader, const _IdReader& _idReader, |
---|
| 1470 | const std::string& _id = std::string()) |
---|
| 1471 | : Parent(_reader), id(_id), |
---|
| 1472 | idReader(new IdReader<typename Graph::UndirEdge, _IdReader>(_idReader)) |
---|
| 1473 | {} |
---|
| 1474 | |
---|
| 1475 | /// \brief Destructor. |
---|
| 1476 | /// |
---|
| 1477 | /// Destructor for UndirEdgeReader. |
---|
| 1478 | virtual ~UndirEdgeReader() {} |
---|
| 1479 | private: |
---|
| 1480 | UndirEdgeReader(const UndirEdgeReader&); |
---|
| 1481 | void operator=(const UndirEdgeReader&); |
---|
| 1482 | |
---|
| 1483 | public: |
---|
| 1484 | |
---|
| 1485 | /// \brief Add an undirected edge reader command for the UndirEdgeReader. |
---|
| 1486 | /// |
---|
| 1487 | /// Add an undirected edge reader command for the UndirEdgeReader. |
---|
| 1488 | void readUndirEdge(const std::string& name, Item& item) { |
---|
| 1489 | if (readers.find(name) != readers.end()) { |
---|
| 1490 | ErrorMessage msg; |
---|
| 1491 | msg << "Multiple read rule for edge: " << name; |
---|
| 1492 | throw IOParameterError(msg.message()); |
---|
| 1493 | } |
---|
| 1494 | readers.insert(make_pair(name, &item)); |
---|
| 1495 | } |
---|
| 1496 | |
---|
| 1497 | protected: |
---|
| 1498 | |
---|
| 1499 | /// \brief Gives back true when the SectionReader can process |
---|
| 1500 | /// the section with the given header line. |
---|
| 1501 | /// |
---|
| 1502 | /// It gives back true when the header line start with \c \@edges, |
---|
[1409] | 1503 | /// and the header line's id and the reader's id are the same. |
---|
| 1504 | virtual bool header(const std::string& line) { |
---|
| 1505 | std::istringstream ls(line); |
---|
| 1506 | std::string command; |
---|
| 1507 | std::string name; |
---|
| 1508 | ls >> command >> name; |
---|
| 1509 | return command == "@edges" && name == id; |
---|
| 1510 | } |
---|
| 1511 | |
---|
| 1512 | /// \brief Reader function of the section. |
---|
| 1513 | /// |
---|
| 1514 | /// It reads the content of the section. |
---|
| 1515 | virtual void read(std::istream& is) { |
---|
| 1516 | std::string line; |
---|
| 1517 | while (getline(is, line)) { |
---|
| 1518 | std::istringstream ls(line); |
---|
| 1519 | std::string id; |
---|
| 1520 | ls >> id; |
---|
| 1521 | typename ItemReaders::iterator it = readers.find(id); |
---|
| 1522 | if (it != readers.end()) { |
---|
| 1523 | *(it->second) = idReader->read(ls); |
---|
| 1524 | } |
---|
| 1525 | } |
---|
| 1526 | } |
---|
| 1527 | |
---|
| 1528 | private: |
---|
| 1529 | |
---|
| 1530 | std::string id; |
---|
| 1531 | |
---|
| 1532 | typedef std::map<std::string, Item*> ItemReaders; |
---|
| 1533 | ItemReaders readers; |
---|
| 1534 | std::auto_ptr<IdReaderBase<Item> > idReader; |
---|
| 1535 | }; |
---|
| 1536 | |
---|
| 1537 | /// \ingroup io_group |
---|
| 1538 | /// \brief SectionReader for attributes. |
---|
| 1539 | /// |
---|
| 1540 | /// The lemon format can store multiple attribute set. Each set has |
---|
| 1541 | /// the header line \c \@attributes \c attributeset_id, but the |
---|
| 1542 | /// attributeset_id may be empty. |
---|
| 1543 | /// |
---|
| 1544 | /// The attributeset section contains several lines. Each of them starts |
---|
| 1545 | /// with an attribute and then a the value for the id. |
---|
| 1546 | /// |
---|
| 1547 | /// \relates LemonReader |
---|
[1408] | 1548 | template <typename _Traits = DefaultReaderTraits> |
---|
| 1549 | class AttributeReader : public CommonSectionReaderBase { |
---|
| 1550 | typedef CommonSectionReaderBase Parent; |
---|
| 1551 | typedef _Traits Traits; |
---|
| 1552 | public: |
---|
[1409] | 1553 | /// \brief Constructor. |
---|
| 1554 | /// |
---|
| 1555 | /// Constructor for AttributeReader. It creates the AttributeReader and |
---|
| 1556 | /// attach it into the given LemonReader. The reader process a section |
---|
| 1557 | /// only if the \c section_id and the \c _id are the same. |
---|
[1408] | 1558 | AttributeReader(LemonReader& _reader, |
---|
[1409] | 1559 | const std::string& _id = std::string()) |
---|
| 1560 | : Parent(_reader), id(_id) {} |
---|
[1408] | 1561 | |
---|
[1409] | 1562 | /// \brief Destructor. |
---|
| 1563 | /// |
---|
| 1564 | /// Destructor for AttributeReader. |
---|
[1408] | 1565 | virtual ~AttributeReader() { |
---|
| 1566 | for (typename Readers::iterator it = readers.begin(); |
---|
| 1567 | it != readers.end(); ++it) { |
---|
| 1568 | delete it->second; |
---|
| 1569 | } |
---|
| 1570 | } |
---|
| 1571 | |
---|
| 1572 | private: |
---|
| 1573 | AttributeReader(const AttributeReader&); |
---|
| 1574 | void operator=(AttributeReader&); |
---|
| 1575 | |
---|
| 1576 | public: |
---|
[1409] | 1577 | /// \brief Add an attribute reader command for the reader. |
---|
| 1578 | /// |
---|
| 1579 | /// Add an attribute reader command for the reader. |
---|
[1408] | 1580 | template <typename Value> |
---|
| 1581 | AttributeReader& readAttribute(const std::string& id, Value& value) { |
---|
| 1582 | return readAttribute<typename Traits::template Reader<Value> > |
---|
| 1583 | (id, value); |
---|
| 1584 | } |
---|
| 1585 | |
---|
[1409] | 1586 | /// \brief Add an attribute reader command for the reader. |
---|
| 1587 | /// |
---|
| 1588 | /// Add an attribute reader command for the reader. |
---|
[1408] | 1589 | template <typename Reader, typename Value> |
---|
| 1590 | AttributeReader& readAttribute(const std::string& name, Value& value, |
---|
| 1591 | const Reader& reader = Reader()) { |
---|
| 1592 | if (readers.find(name) != readers.end()) { |
---|
| 1593 | ErrorMessage msg; |
---|
| 1594 | msg << "Multiple read rule for attribute: " << name; |
---|
| 1595 | throw IOParameterError(msg.message()); |
---|
| 1596 | } |
---|
| 1597 | readers.insert(make_pair(name, new ValueReader<Value, Reader> |
---|
| 1598 | (value, reader))); |
---|
| 1599 | return *this; |
---|
| 1600 | } |
---|
| 1601 | |
---|
[1409] | 1602 | protected: |
---|
| 1603 | |
---|
| 1604 | /// \brief Gives back true when the SectionReader can process |
---|
| 1605 | /// the section with the given header line. |
---|
| 1606 | /// |
---|
[1421] | 1607 | /// It gives back true when the header line start with \c \@attributes, |
---|
[1409] | 1608 | /// and the header line's id and the attributeset's id are the same. |
---|
[1408] | 1609 | bool header(const std::string& line) { |
---|
| 1610 | std::istringstream ls(line); |
---|
| 1611 | std::string command; |
---|
| 1612 | std::string name; |
---|
| 1613 | ls >> command >> name; |
---|
| 1614 | return command == "@attributes" && name == id; |
---|
| 1615 | } |
---|
| 1616 | |
---|
[1409] | 1617 | /// \brief Reader function of the section. |
---|
| 1618 | /// |
---|
| 1619 | /// It reads the content of the section. |
---|
[1408] | 1620 | void read(std::istream& is) { |
---|
| 1621 | std::string line; |
---|
| 1622 | while (getline(is, line)) { |
---|
| 1623 | std::istringstream ls(line); |
---|
| 1624 | std::string id; |
---|
| 1625 | ls >> id; |
---|
| 1626 | typename Readers::iterator it = readers.find(id); |
---|
| 1627 | if (it != readers.end()) { |
---|
| 1628 | it->second->read(ls); |
---|
| 1629 | } |
---|
| 1630 | } |
---|
| 1631 | } |
---|
| 1632 | |
---|
| 1633 | private: |
---|
| 1634 | std::string id; |
---|
| 1635 | |
---|
| 1636 | typedef std::map<std::string, ValueReaderBase*> Readers; |
---|
[1409] | 1637 | Readers readers; |
---|
[1408] | 1638 | }; |
---|
| 1639 | |
---|
[1423] | 1640 | /// \ingroup io_group |
---|
| 1641 | /// \brief SectionReader for retrieve what is in the file. |
---|
| 1642 | /// |
---|
| 1643 | /// SectionReader for retrieve what is in the file. If you want |
---|
| 1644 | /// to know which sections, maps and items are in the file |
---|
| 1645 | /// use the next code: |
---|
| 1646 | /// \code |
---|
| 1647 | /// LemonReader reader("input.lgf"); |
---|
| 1648 | /// ContentReader content(reader); |
---|
| 1649 | /// reader.run(); |
---|
| 1650 | /// \endcode |
---|
| 1651 | class ContentReader : public LemonReader::SectionReader { |
---|
| 1652 | typedef LemonReader::SectionReader Parent; |
---|
| 1653 | public: |
---|
| 1654 | /// \brief Constructor. |
---|
| 1655 | /// |
---|
| 1656 | /// Constructor for |
---|
| 1657 | ContentReader(LemonReader& _reader) : Parent(_reader) {} |
---|
| 1658 | |
---|
| 1659 | /// \brief Desctructor. |
---|
| 1660 | /// |
---|
| 1661 | /// Desctructor. |
---|
| 1662 | virtual ~ContentReader() {} |
---|
| 1663 | |
---|
| 1664 | /// \brief Gives back how many nodesets are in the file. |
---|
| 1665 | /// |
---|
| 1666 | /// Gives back how many nodesets are in the file. |
---|
| 1667 | int nodeSetNum() const { |
---|
| 1668 | return nodesets.size(); |
---|
| 1669 | } |
---|
| 1670 | |
---|
| 1671 | /// \brief Gives back the name of nodeset on the indiced position. |
---|
| 1672 | /// |
---|
| 1673 | /// Gives back the name of nodeset on the indiced position. |
---|
| 1674 | std::string nodeSetName(int index) const { |
---|
| 1675 | return nodesets[index].name; |
---|
| 1676 | } |
---|
| 1677 | |
---|
| 1678 | /// \brief Gives back the map names of nodeset on the indiced position. |
---|
| 1679 | /// |
---|
| 1680 | /// Gives back the map names of nodeset on the indiced position. |
---|
| 1681 | const std::vector<std::string>& nodeSetMaps(int index) const { |
---|
| 1682 | return nodesets[index].items; |
---|
| 1683 | } |
---|
| 1684 | |
---|
| 1685 | /// \brief Gives back how many edgesets are in the file. |
---|
| 1686 | /// |
---|
| 1687 | /// Gives back how many edgesets are in the file. |
---|
| 1688 | int edgeSetNum() const { |
---|
| 1689 | return edgesets.size(); |
---|
| 1690 | } |
---|
| 1691 | |
---|
| 1692 | /// \brief Gives back the name of edgeset on the indiced position. |
---|
| 1693 | /// |
---|
| 1694 | /// Gives back the name of edgeset on the indiced position. |
---|
| 1695 | std::string edgeSetName(int index) const { |
---|
| 1696 | return edgesets[index].name; |
---|
| 1697 | } |
---|
| 1698 | |
---|
| 1699 | /// \brief Gives back the map names of edgeset on the indiced position. |
---|
| 1700 | /// |
---|
| 1701 | /// Gives back the map names of edgeset on the indiced position. |
---|
| 1702 | const std::vector<std::string>& edgeSetMaps(int index) const { |
---|
| 1703 | return edgesets[index].items; |
---|
| 1704 | } |
---|
| 1705 | |
---|
| 1706 | /// \brief Gives back how many undirected edgesets are in the file. |
---|
| 1707 | /// |
---|
| 1708 | /// Gives back how many undirected edgesets are in the file. |
---|
| 1709 | int undirEdgeSetNum() const { |
---|
| 1710 | return undiredgesets.size(); |
---|
| 1711 | } |
---|
| 1712 | |
---|
| 1713 | /// \brief Gives back the name of undirected edgeset on the indiced |
---|
| 1714 | /// position. |
---|
| 1715 | /// |
---|
| 1716 | /// Gives back the name of undirected edgeset on the indiced position. |
---|
| 1717 | std::string undirEdgeSetName(int index) const { |
---|
| 1718 | return undiredgesets[index].name; |
---|
| 1719 | } |
---|
| 1720 | |
---|
| 1721 | /// \brief Gives back the map names of undirected edgeset on the indiced |
---|
| 1722 | /// position. |
---|
| 1723 | /// |
---|
| 1724 | /// Gives back the map names of undirected edgeset on the indiced position. |
---|
| 1725 | const std::vector<std::string>& undirEdgeSetMaps(int index) const { |
---|
| 1726 | return undiredgesets[index].items; |
---|
| 1727 | } |
---|
| 1728 | |
---|
| 1729 | /// \brief Gives back how many labeled nodes section are in the file. |
---|
| 1730 | /// |
---|
| 1731 | /// Gives back how many labeled nodes section are in the file. |
---|
| 1732 | int nodesNum() const { |
---|
| 1733 | return nodes.size(); |
---|
| 1734 | } |
---|
| 1735 | |
---|
| 1736 | /// \brief Gives back the name of labeled nodes section on the indiced |
---|
| 1737 | /// position. |
---|
| 1738 | /// |
---|
| 1739 | /// Gives back the name of labeled nodes section on the indiced position. |
---|
| 1740 | std::string nodesName(int index) const { |
---|
| 1741 | return nodes[index].name; |
---|
| 1742 | } |
---|
| 1743 | |
---|
| 1744 | /// \brief Gives back the names of the labeled nodes in the indiced |
---|
| 1745 | /// section. |
---|
| 1746 | /// |
---|
| 1747 | /// Gives back the names of the labeled nodes in the indiced section. |
---|
| 1748 | const std::vector<std::string>& nodesItems(int index) const { |
---|
| 1749 | return nodes[index].items; |
---|
| 1750 | } |
---|
| 1751 | |
---|
| 1752 | /// \brief Gives back how many labeled edges section are in the file. |
---|
| 1753 | /// |
---|
| 1754 | /// Gives back how many labeled edges section are in the file. |
---|
| 1755 | int edgesNum() const { |
---|
| 1756 | return edges.size(); |
---|
| 1757 | } |
---|
| 1758 | |
---|
| 1759 | /// \brief Gives back the name of labeled edges section on the indiced |
---|
| 1760 | /// position. |
---|
| 1761 | /// |
---|
| 1762 | /// Gives back the name of labeled edges section on the indiced position. |
---|
| 1763 | std::string edgesName(int index) const { |
---|
| 1764 | return edges[index].name; |
---|
| 1765 | } |
---|
| 1766 | |
---|
| 1767 | /// \brief Gives back the names of the labeled edges in the indiced |
---|
| 1768 | /// section. |
---|
| 1769 | /// |
---|
| 1770 | /// Gives back the names of the labeled edges in the indiced section. |
---|
| 1771 | const std::vector<std::string>& edgesItems(int index) const { |
---|
| 1772 | return edges[index].items; |
---|
| 1773 | } |
---|
| 1774 | |
---|
| 1775 | /// \brief Gives back how many labeled undirected edges section are |
---|
| 1776 | /// in the file. |
---|
| 1777 | /// |
---|
| 1778 | /// Gives back how many labeled undirected edges section are in the file. |
---|
| 1779 | int undirEdgesNum() const { |
---|
| 1780 | return undiredges.size(); |
---|
| 1781 | } |
---|
| 1782 | |
---|
| 1783 | /// \brief Gives back the name of labeled undirected edges section |
---|
| 1784 | /// on the indiced position. |
---|
| 1785 | /// |
---|
| 1786 | /// Gives back the name of labeled undirected edges section on the |
---|
| 1787 | /// indiced position. |
---|
| 1788 | std::string undirEdgesName(int index) const { |
---|
| 1789 | return undiredges[index].name; |
---|
| 1790 | } |
---|
| 1791 | |
---|
| 1792 | /// \brief Gives back the names of the labeled undirected edges in |
---|
| 1793 | /// the indiced section. |
---|
| 1794 | /// |
---|
| 1795 | /// Gives back the names of the labeled undirected edges in the |
---|
| 1796 | /// indiced section. |
---|
| 1797 | const std::vector<std::string>& undirEdgesItems(int index) const { |
---|
| 1798 | return undiredges[index].items; |
---|
| 1799 | } |
---|
| 1800 | |
---|
| 1801 | |
---|
| 1802 | /// \brief Gives back how many attributes section are in the file. |
---|
| 1803 | /// |
---|
| 1804 | /// Gives back how many attributes section are in the file. |
---|
| 1805 | int attributesNum() const { |
---|
| 1806 | return attributes.size(); |
---|
| 1807 | } |
---|
| 1808 | |
---|
| 1809 | /// \brief Gives back the name of attributes section on the indiced |
---|
| 1810 | /// position. |
---|
| 1811 | /// |
---|
| 1812 | /// Gives back the name of attributes section on the indiced position. |
---|
| 1813 | std::string attributesName(int index) const { |
---|
| 1814 | return attributes[index].name; |
---|
| 1815 | } |
---|
| 1816 | |
---|
| 1817 | /// \brief Gives back the names of the attributes in the indiced section. |
---|
| 1818 | /// |
---|
| 1819 | /// Gives back the names of the attributes in the indiced section. |
---|
| 1820 | const std::vector<std::string>& attributesItems(int index) const { |
---|
| 1821 | return attributes[index].items; |
---|
| 1822 | } |
---|
| 1823 | |
---|
| 1824 | const std::vector<std::string>& otherSections() const { |
---|
| 1825 | return sections; |
---|
| 1826 | } |
---|
| 1827 | |
---|
| 1828 | protected: |
---|
| 1829 | |
---|
| 1830 | /// \brief Gives back true when the SectionReader can process |
---|
| 1831 | /// the section with the given header line. |
---|
| 1832 | /// |
---|
| 1833 | /// It gives back true when the section is common section. |
---|
| 1834 | bool header(const std::string& line) { |
---|
| 1835 | std::istringstream ls(line); |
---|
| 1836 | std::string command, name; |
---|
| 1837 | ls >> command >> name; |
---|
| 1838 | if (command == "@nodeset") { |
---|
| 1839 | current = command; |
---|
| 1840 | nodesets.push_back(SectionInfo(name)); |
---|
| 1841 | } else if (command == "@edgeset") { |
---|
| 1842 | current = command; |
---|
| 1843 | edgesets.push_back(SectionInfo(name)); |
---|
| 1844 | } else if (command == "@undiredgeset") { |
---|
| 1845 | current = command; |
---|
| 1846 | undiredgesets.push_back(SectionInfo(name)); |
---|
| 1847 | } else if (command == "@nodes") { |
---|
| 1848 | current = command; |
---|
| 1849 | nodes.push_back(SectionInfo(name)); |
---|
| 1850 | } else if (command == "@edges") { |
---|
| 1851 | current = command; |
---|
| 1852 | edges.push_back(SectionInfo(name)); |
---|
| 1853 | } else if (command == "@undiredges") { |
---|
| 1854 | current = command; |
---|
| 1855 | undiredges.push_back(SectionInfo(name)); |
---|
| 1856 | } else if (command == "@attributes") { |
---|
| 1857 | current = command; |
---|
| 1858 | attributes.push_back(SectionInfo(name)); |
---|
| 1859 | } else { |
---|
| 1860 | sections.push_back(line); |
---|
| 1861 | return false; |
---|
| 1862 | } |
---|
| 1863 | return true; |
---|
| 1864 | } |
---|
| 1865 | |
---|
| 1866 | /// \brief Retrieve the items from various sections. |
---|
| 1867 | /// |
---|
| 1868 | /// Retrieve the items from various sections. |
---|
| 1869 | void read(std::istream& is) { |
---|
| 1870 | if (current == "@nodeset") { |
---|
| 1871 | readMapNames(is, nodesets.back().items); |
---|
| 1872 | } else if (current == "@edgeset") { |
---|
| 1873 | readMapNames(is, edgesets.back().items); |
---|
| 1874 | } else if (current == "@undiredgeset") { |
---|
| 1875 | readMapNames(is, undiredgesets.back().items); |
---|
| 1876 | } else if (current == "@nodes") { |
---|
| 1877 | readItemNames(is, nodes.back().items); |
---|
| 1878 | } else if (current == "@edges") { |
---|
| 1879 | readItemNames(is, edges.back().items); |
---|
| 1880 | } else if (current == "@undiredges") { |
---|
| 1881 | readItemNames(is, undiredges.back().items); |
---|
| 1882 | } else if (current == "@attributes") { |
---|
| 1883 | readItemNames(is, attributes.back().items); |
---|
| 1884 | } |
---|
| 1885 | } |
---|
| 1886 | |
---|
| 1887 | private: |
---|
| 1888 | |
---|
| 1889 | void readMapNames(std::istream& is, std::vector<std::string>& maps) { |
---|
| 1890 | std::string line, id; |
---|
| 1891 | std::getline(is, line); |
---|
| 1892 | std::istringstream ls(line); |
---|
| 1893 | while (ls >> id) { |
---|
| 1894 | maps.push_back(id); |
---|
| 1895 | } |
---|
| 1896 | while (getline(is, line)); |
---|
| 1897 | } |
---|
| 1898 | |
---|
| 1899 | void readItemNames(std::istream& is, std::vector<std::string>& maps) { |
---|
| 1900 | std::string line, id; |
---|
| 1901 | while (std::getline(is, line)) { |
---|
| 1902 | std::istringstream ls(line); |
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| 1903 | ls >> id; |
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| 1904 | maps.push_back(id); |
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| 1905 | } |
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| 1906 | } |
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| 1907 | |
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| 1908 | struct SectionInfo { |
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| 1909 | std::string name; |
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| 1910 | std::vector<std::string> items; |
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| 1911 | |
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| 1912 | SectionInfo(const std::string& _name) : name(_name) {} |
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| 1913 | }; |
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| 1914 | |
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| 1915 | std::vector<SectionInfo> nodesets; |
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| 1916 | std::vector<SectionInfo> edgesets; |
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| 1917 | std::vector<SectionInfo> undiredgesets; |
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| 1918 | |
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| 1919 | std::vector<SectionInfo> nodes; |
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| 1920 | std::vector<SectionInfo> edges; |
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| 1921 | std::vector<SectionInfo> undiredges; |
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| 1922 | |
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| 1923 | std::vector<SectionInfo> attributes; |
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| 1924 | |
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| 1925 | std::vector<std::string> sections; |
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| 1926 | |
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| 1927 | std::string current; |
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| 1928 | |
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| 1929 | }; |
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| 1930 | |
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[1408] | 1931 | } |
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| 1932 | #endif |
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