[1408] | 1 | /* -*- C++ -*- |
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| 2 | * |
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[1956] | 3 | * This file is a part of LEMON, a generic C++ optimization library |
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| 4 | * |
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| 5 | * Copyright (C) 2003-2006 |
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| 6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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[1408] | 8 | * |
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| 9 | * Permission to use, modify and distribute this software is granted |
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| 10 | * provided that this copyright notice appears in all copies. For |
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| 11 | * precise terms see the accompanying LICENSE file. |
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| 12 | * |
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| 13 | * This software is provided "AS IS" with no warranty of any kind, |
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| 14 | * express or implied, and with no claim as to its suitability for any |
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| 15 | * purpose. |
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| 16 | * |
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| 17 | */ |
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| 18 | |
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[1946] | 19 | /// \ingroup item_io |
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[1408] | 20 | /// \file |
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| 21 | /// \brief Item reader bits for lemon input. |
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| 22 | |
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| 23 | #ifndef LEMON_BITS_ITEM_READER_H |
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| 24 | #define LEMON_BITS_ITEM_READER_H |
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| 25 | |
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| 26 | #include <iostream> |
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| 27 | #include <string> |
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| 28 | |
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| 29 | #include <vector> |
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| 30 | #include <deque> |
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| 31 | #include <list> |
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| 32 | #include <set> |
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| 33 | |
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| 34 | namespace lemon { |
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| 35 | |
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| 36 | template <typename Value> |
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| 37 | class DefaultReader; |
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| 38 | |
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[1946] | 39 | /// \ingroup item_io |
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[1408] | 40 | /// |
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[2254] | 41 | /// \brief Reader class for unformatted strings. |
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| 42 | /// |
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| 43 | /// Reader class for unformatted strings. This class want to be |
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| 44 | /// a general reader type which can read the most |
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| 45 | /// |
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| 46 | /// \author Balazs Dezso |
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| 47 | class UnformattedReader { |
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| 48 | public: |
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| 49 | /// \brief The value type of reader. |
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| 50 | /// |
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| 51 | /// The value type of reader. |
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| 52 | typedef std::string Value; |
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| 53 | |
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| 54 | /// \brief Constructor for the reader. |
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| 55 | /// |
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| 56 | /// Constructor for the reader. |
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| 57 | UnformattedReader() {} |
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| 58 | |
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| 59 | /// \brief Reads an unformatted string from the given stream. |
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| 60 | /// |
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| 61 | /// Reads an unformatted string from the given stream. |
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| 62 | void read(std::istream& is, std::string& value) const { |
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| 63 | char c; |
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| 64 | value.clear(); |
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| 65 | is >> std::ws; |
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| 66 | while (is.get(c) && !whiteSpace(c)) { |
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| 67 | processChar(c, is, value); |
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| 68 | } |
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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 | void processChar(char c, std::istream& is, Value& value) const { |
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| 74 | switch (c) { |
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| 75 | case '(': |
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| 76 | is.putback(c); |
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| 77 | readParsed('(', ')', is, value); |
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| 78 | break; |
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| 79 | case '[': |
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| 80 | is.putback(c); |
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| 81 | readParsed('[', ']', is, value); |
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| 82 | break; |
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| 83 | case '{': |
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| 84 | is.putback(c); |
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| 85 | readParsed('{', '}', is, value); |
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| 86 | break; |
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| 87 | case '/': |
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| 88 | is.putback(c); |
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| 89 | readParsed('/', '/', is, value); |
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| 90 | break; |
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| 91 | case '\"': |
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| 92 | is.putback(c); |
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| 93 | readQuoted('\"', is, value); |
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| 94 | break; |
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| 95 | case '\'': |
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| 96 | is.putback(c); |
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| 97 | readQuoted('\'', is, value); |
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| 98 | break; |
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| 99 | default: |
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| 100 | value += c; |
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| 101 | break; |
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| 102 | } |
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| 103 | } |
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| 104 | |
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| 105 | void readParsed(char open, char close, |
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| 106 | std::istream& is, Value& value) const { |
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| 107 | char c; |
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| 108 | if (!is.get(c) || c != open) |
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| 109 | throw DataFormatError("Unformatted string format error"); |
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| 110 | value += c; |
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| 111 | while (is.get(c) && c != close) { |
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| 112 | processChar(c, is, value); |
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| 113 | } |
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| 114 | if (!is) |
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| 115 | throw DataFormatError("Unformatted string format error"); |
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| 116 | value += c; |
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| 117 | } |
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| 118 | |
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| 119 | void readQuoted(char quote, std::istream& is, Value& value) const { |
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| 120 | char c; |
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| 121 | bool esc = false; |
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| 122 | if (!is.get(c) || c != quote) |
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| 123 | throw DataFormatError("Unformatted string format error"); |
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| 124 | value += c; |
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| 125 | while (is.get(c) && (c != quote || esc)) { |
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| 126 | if (c == '\\') esc = !esc; |
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| 127 | else esc = false; |
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| 128 | value += c; |
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| 129 | } |
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| 130 | if (!is) |
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| 131 | throw DataFormatError("Unformatted string format error"); |
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| 132 | value += c; |
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| 133 | } |
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| 134 | |
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| 135 | |
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| 136 | |
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| 137 | static bool whiteSpace(char c) { |
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| 138 | return c == ' ' || c == '\t' || c == '\v' || |
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| 139 | c == '\n' || c == '\r' || c == '\f'; |
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| 140 | } |
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| 141 | |
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| 142 | |
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| 143 | }; |
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| 144 | |
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| 145 | /// \ingroup item_io |
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| 146 | /// |
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[1408] | 147 | /// \brief Reader class for quoted strings. |
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| 148 | /// |
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| 149 | /// Reader class for quoted strings. It can process the escape |
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| 150 | /// sequences in the string. |
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| 151 | /// |
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| 152 | /// \author Balazs Dezso |
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| 153 | class QuotedStringReader { |
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[2254] | 154 | friend class QuotedCharReader; |
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[1408] | 155 | public: |
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| 156 | /// \brief The value type of reader. |
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| 157 | /// |
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| 158 | /// The value type of reader. |
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| 159 | typedef std::string Value; |
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| 160 | |
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| 161 | /// \brief Constructor for the reader. |
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| 162 | /// |
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| 163 | /// Constructor for the reader. If the given parameter is true |
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| 164 | /// the reader processes the escape sequences. |
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| 165 | QuotedStringReader(bool _escaped = true) |
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| 166 | : escaped(_escaped) {} |
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| 167 | |
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| 168 | /// \brief Reads a quoted string from the given stream. |
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| 169 | /// |
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| 170 | /// Reads a quoted string from the given stream. |
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| 171 | void read(std::istream& is, std::string& value) const { |
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| 172 | char c; |
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| 173 | value.clear(); |
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| 174 | is >> std::ws; |
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| 175 | if (!is.get(c) || c != '\"') |
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[2254] | 176 | throw DataFormatError("Quoted format error"); |
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[1408] | 177 | while (is.get(c) && c != '\"') { |
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| 178 | if (escaped && c == '\\') { |
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| 179 | value += readEscape(is); |
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| 180 | } else { |
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| 181 | value += c; |
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| 182 | } |
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| 183 | } |
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[2254] | 184 | if (!is) throw DataFormatError("Quoted format error"); |
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[1408] | 185 | } |
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| 186 | |
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| 187 | private: |
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| 188 | |
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| 189 | static char readEscape(std::istream& is) { |
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| 190 | char c; |
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| 191 | switch (is.get(c), c) { |
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| 192 | case '\\': |
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| 193 | return '\\'; |
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| 194 | case '\"': |
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| 195 | return '\"'; |
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| 196 | case '\'': |
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| 197 | return '\''; |
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| 198 | case '\?': |
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| 199 | return '\?'; |
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| 200 | case 'a': |
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| 201 | return '\a'; |
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| 202 | case 'b': |
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| 203 | return '\b'; |
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| 204 | case 'f': |
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| 205 | return '\f'; |
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| 206 | case 'n': |
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| 207 | return '\n'; |
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| 208 | case 'r': |
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| 209 | return '\r'; |
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| 210 | case 't': |
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| 211 | return '\t'; |
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| 212 | case 'v': |
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| 213 | return '\v'; |
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| 214 | case 'x': |
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| 215 | { |
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| 216 | int code; |
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| 217 | if (!is.get(c) || !isHex(c)) |
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| 218 | throw DataFormatError("Escape format error"); |
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| 219 | else if (code = valueHex(c), !is.get(c) || !isHex(c)) is.putback(c); |
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| 220 | else code = code * 16 + valueHex(c); |
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| 221 | return code; |
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| 222 | } |
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| 223 | default: |
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| 224 | { |
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| 225 | int code; |
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| 226 | if (!isOct(c)) |
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| 227 | throw DataFormatError("Escape format error"); |
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| 228 | else if (code = valueOct(c), !is.get(c) || !isOct(c)) |
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| 229 | is.putback(c); |
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| 230 | else if (code = code * 8 + valueOct(c), !is.get(c) || !isOct(c)) |
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| 231 | is.putback(c); |
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| 232 | else code = code * 8 + valueOct(c); |
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| 233 | return code; |
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| 234 | } |
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| 235 | } |
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| 236 | } |
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| 237 | |
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| 238 | static bool isOct(char c) { |
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| 239 | return '0' <= c && c <='7'; |
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| 240 | } |
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| 241 | |
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| 242 | static int valueOct(char c) { |
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| 243 | return c - '0'; |
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| 244 | } |
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| 245 | |
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| 246 | static bool isHex(char c) { |
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| 247 | return ('0' <= c && c <= '9') || |
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| 248 | ('a' <= c && c <= 'z') || |
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| 249 | ('A' <= c && c <= 'Z'); |
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| 250 | } |
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| 251 | |
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| 252 | static int valueHex(char c) { |
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| 253 | if ('0' <= c && c <= '9') return c - '0'; |
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| 254 | if ('a' <= c && c <= 'z') return c - 'a' + 10; |
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| 255 | return c - 'A' + 10; |
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| 256 | } |
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| 257 | |
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| 258 | bool escaped; |
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| 259 | }; |
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| 260 | |
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[1946] | 261 | /// \ingroup item_io |
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[2254] | 262 | /// |
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| 263 | /// \brief Reader class for quoted strings. |
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| 264 | /// |
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| 265 | /// Reader class for quoted strings. It can process the escape |
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| 266 | /// sequences in the string. |
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| 267 | /// |
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| 268 | /// \author Balazs Dezso |
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| 269 | class QuotedCharReader { |
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| 270 | public: |
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| 271 | /// \brief The value type of reader. |
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| 272 | /// |
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| 273 | /// The value type of reader. |
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| 274 | typedef char Value; |
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| 275 | |
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| 276 | /// \brief Constructor for the reader. |
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| 277 | /// |
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| 278 | /// Constructor for the reader. If the given parameter is true |
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| 279 | /// the reader processes the escape sequences. |
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| 280 | QuotedCharReader(bool _escaped = true) |
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| 281 | : escaped(_escaped) {} |
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| 282 | |
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| 283 | /// \brief Reads a quoted string from the given stream. |
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| 284 | /// |
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| 285 | /// Reads a quoted string from the given stream. |
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| 286 | void read(std::istream& is, char& value) const { |
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| 287 | char c; |
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| 288 | is >> std::ws; |
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| 289 | if (!is.get(c) || c != '\'') |
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| 290 | throw DataFormatError("Quoted format error"); |
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| 291 | if (!is.get(c)) |
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| 292 | throw DataFormatError("Quoted format error"); |
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| 293 | if (escaped && c == '\\') { |
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| 294 | value = QuotedStringReader::readEscape(is); |
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| 295 | } else { |
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| 296 | value = c; |
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| 297 | } |
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| 298 | if (!is.get(c) || c != '\'') |
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| 299 | throw DataFormatError("Quoted format error"); |
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| 300 | } |
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| 301 | |
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| 302 | private: |
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| 303 | bool escaped; |
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| 304 | }; |
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| 305 | |
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| 306 | /// \ingroup item_io |
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[1408] | 307 | /// \brief Reader for standard containers. |
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| 308 | /// |
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| 309 | /// Reader for back insertable standard containers. The representation |
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| 310 | /// of the container is the values enumerated between an open and a |
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| 311 | /// close parse. |
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| 312 | /// |
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| 313 | /// \author Balazs Dezso |
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| 314 | template < |
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| 315 | typename _Container, |
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| 316 | typename _ItemReader = DefaultReader<typename _Container::value_type> |
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| 317 | > |
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| 318 | class PushBackReader { |
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| 319 | public: |
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| 320 | typedef _Container Value; |
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| 321 | typedef _ItemReader ItemReader; |
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| 322 | |
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| 323 | private: |
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| 324 | |
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| 325 | ItemReader item_reader; |
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| 326 | |
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| 327 | public: |
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| 328 | |
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[1852] | 329 | /// \brief Constructor for InsertReader |
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| 330 | /// |
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| 331 | /// Constructor for InsertReader |
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| 332 | PushBackReader(const ItemReader& _item_reader = ItemReader()) |
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| 333 | : item_reader(_item_reader) {} |
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| 334 | |
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[1408] | 335 | /// \brief Reads the values into the container from the given stream. |
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| 336 | /// |
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| 337 | /// Reads the values into the container from the given stream. |
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| 338 | void read(std::istream& is, Value& value) const { |
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| 339 | char c; |
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| 340 | if (!(is >> c) || c != '(') |
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| 341 | throw DataFormatError("PushBackReader format error"); |
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| 342 | while (is >> c && c != ')') { |
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| 343 | is.putback(c); |
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| 344 | typename ItemReader::Value item; |
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| 345 | item_reader.read(is, item); |
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| 346 | value.push_back(item); |
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| 347 | } |
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| 348 | if (!is) throw DataFormatError("PushBackReader format error"); |
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| 349 | } |
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| 350 | |
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| 351 | }; |
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| 352 | |
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[1946] | 353 | /// \ingroup item_io |
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[1408] | 354 | /// |
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| 355 | /// \brief Reader for standard containers. |
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| 356 | /// |
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| 357 | /// Reader for insertable standard containers. The representation |
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| 358 | /// of the container is the values enumerated between an open and a |
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| 359 | /// close parse. |
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| 360 | /// |
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| 361 | /// \author Balazs Dezso |
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| 362 | template < |
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| 363 | typename _Container, |
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| 364 | typename _ItemReader = DefaultReader<typename _Container::value_type> |
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| 365 | > |
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| 366 | class InsertReader { |
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| 367 | public: |
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| 368 | typedef _Container Value; |
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| 369 | typedef _ItemReader ItemReader; |
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| 370 | |
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| 371 | private: |
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| 372 | |
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| 373 | ItemReader item_reader; |
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| 374 | |
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| 375 | public: |
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| 376 | |
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[1852] | 377 | /// \brief Constructor for InsertReader |
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| 378 | /// |
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| 379 | /// Constructor for InsertReader |
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| 380 | InsertReader(const ItemReader& _item_reader = ItemReader()) |
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| 381 | : item_reader(_item_reader) {} |
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| 382 | |
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[1408] | 383 | /// \brief Reads the values into the container from the given stream. |
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| 384 | /// |
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| 385 | /// Reads the values into the container from the given stream. |
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| 386 | void read(std::istream& is, Value& value) const { |
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| 387 | char c; |
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| 388 | if (!(is >> c) || c != '(') |
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| 389 | throw DataFormatError("InsertReader format error"); |
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| 390 | while (is >> c && c != ')') { |
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| 391 | is.putback(c); |
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| 392 | typename ItemReader::Value item; |
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| 393 | item_reader.read(is, item); |
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| 394 | value.insert(item); |
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| 395 | } |
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| 396 | if (!is) throw DataFormatError("PushBackReader format error"); |
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| 397 | } |
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| 398 | |
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| 399 | }; |
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| 400 | |
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[1946] | 401 | /// \ingroup item_io |
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[1408] | 402 | /// \brief Reader for parsed string. |
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| 403 | /// |
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[1744] | 404 | /// Reader for parsed strings. You can define the open and close |
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| 405 | /// parse characters. It reads from the input a character sequence |
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| 406 | /// which is right parsed. |
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[1408] | 407 | /// |
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| 408 | /// \author Balazs Dezso |
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| 409 | class ParsedStringReader { |
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| 410 | public: |
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| 411 | typedef std::string Value; |
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| 412 | |
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| 413 | /// \brief Constructor. |
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| 414 | /// |
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| 415 | /// Constructor for ParsedStringReader. You can give as parameter |
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| 416 | /// the open and close parse characters. |
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| 417 | ParsedStringReader(char _open = '(', char _close = ')') |
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| 418 | : open(_open), close(_close) {} |
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| 419 | |
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| 420 | |
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| 421 | /// \brief Reads the parsed string from the given stream. |
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| 422 | /// |
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| 423 | /// Reads the parsed string from the given stream. |
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| 424 | void read(std::istream& is, Value& value) const { |
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| 425 | char c; |
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[2254] | 426 | value.clear(); |
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[1408] | 427 | if (!(is >> c) || c != open) { |
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| 428 | throw DataFormatError("ParsedStringReader format error"); |
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| 429 | } |
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| 430 | value += c; |
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| 431 | int counter = 1; |
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| 432 | while (counter > 0 && is >> c) { |
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| 433 | if (c == close) { |
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| 434 | --counter; |
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| 435 | } else if (c == open) { |
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| 436 | ++counter; |
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| 437 | } |
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| 438 | value += c; |
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| 439 | } |
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| 440 | if (!is) { |
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| 441 | throw DataFormatError("ParsedStrinReader format error"); |
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| 442 | } |
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| 443 | } |
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| 444 | |
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| 445 | private: |
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| 446 | char open, close; |
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| 447 | |
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| 448 | }; |
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| 449 | |
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[1946] | 450 | /// \ingroup item_io |
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[1408] | 451 | /// \brief Reader for read the whole line. |
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| 452 | /// |
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| 453 | /// Reader for read the whole line. |
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| 454 | /// |
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| 455 | /// \author Balazs Dezso |
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| 456 | class LineReader { |
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| 457 | public: |
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| 458 | typedef std::string Value; |
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| 459 | |
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| 460 | /// \brief Constructor. |
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| 461 | /// |
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| 462 | /// Constructor for the LineReader. If the given parameter is |
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| 463 | /// true then the spaces before the first not space character are |
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| 464 | /// skipped. |
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| 465 | LineReader(bool _skipSpaces = true) : skipSpaces(_skipSpaces) {} |
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| 466 | |
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| 467 | /// \brief Reads the line from the given stream. |
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| 468 | /// |
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| 469 | /// Reads the line from the given stream. |
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[1852] | 470 | void read(std::istream& is, Value& value) const { |
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[1408] | 471 | if (skipSpaces) is >> std::ws; |
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| 472 | if (!getline(is, value)) { |
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[1852] | 473 | throw DataFormatError("LineReader format error"); |
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[1408] | 474 | } |
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| 475 | } |
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| 476 | private: |
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| 477 | bool skipSpaces; |
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| 478 | }; |
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| 479 | |
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[1946] | 480 | /// \ingroup item_io |
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[1852] | 481 | /// \brief Reader for std::pair. |
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| 482 | /// |
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| 483 | /// Reader for std::pair. |
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| 484 | /// |
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| 485 | /// \author Balazs Dezso |
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| 486 | template <typename _Pair, |
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| 487 | typename _FirstReader = |
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| 488 | DefaultReader<typename _Pair::first_type>, |
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| 489 | typename _SecondReader = |
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| 490 | DefaultReader<typename _Pair::second_type> > |
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| 491 | class PairReader { |
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| 492 | public: |
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| 493 | typedef _Pair Value; |
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| 494 | |
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| 495 | typedef _FirstReader FirstReader; |
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| 496 | typedef _SecondReader SecondReader; |
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| 497 | |
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| 498 | private: |
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| 499 | |
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| 500 | FirstReader first_reader; |
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| 501 | SecondReader second_reader; |
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| 502 | |
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| 503 | public: |
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| 504 | |
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| 505 | /// \brief Constructor. |
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| 506 | /// |
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| 507 | /// Constructor for the PairReader. |
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| 508 | PairReader(const FirstReader& _first_reader = FirstReader(), |
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| 509 | const SecondReader& _second_reader = SecondReader()) |
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| 510 | : first_reader(_first_reader), second_reader(_second_reader) {} |
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| 511 | |
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| 512 | /// \brief Reads the pair from the given stream. |
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| 513 | /// |
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| 514 | /// Reads the pair from the given stream. |
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| 515 | void read(std::istream& is, Value& value) const { |
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| 516 | char c; |
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| 517 | if (!(is >> c) || c != '(') { |
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| 518 | throw DataFormatError("PairReader format error"); |
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| 519 | } |
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| 520 | first_reader.read(is, value.first); |
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| 521 | if (!(is >> c) || c != '=') { |
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| 522 | throw DataFormatError("PairReader format error"); |
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| 523 | } |
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| 524 | if (!(is >> c) || c != '>') { |
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| 525 | throw DataFormatError("PairReader format error"); |
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| 526 | } |
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| 527 | second_reader.read(is, value.second); |
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| 528 | if (!(is >> c) || c != ')') { |
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| 529 | throw DataFormatError("PairReader format error"); |
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| 530 | } |
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| 531 | } |
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| 532 | }; |
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| 533 | |
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[1946] | 534 | /// \ingroup item_io |
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[1408] | 535 | /// |
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| 536 | /// \brief The default item reader template class. |
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| 537 | /// |
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| 538 | /// The default item reader template class. If some section reader |
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| 539 | /// needs to read a value from a stream it will give the default way for it. |
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| 540 | /// |
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| 541 | /// \author Balazs Dezso |
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| 542 | template <typename _Value> |
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| 543 | class DefaultReader { |
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| 544 | public: |
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| 545 | /// The value type. |
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| 546 | typedef _Value Value; |
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| 547 | /// \brief Reads a value from the given stream. |
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| 548 | /// |
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| 549 | /// Reads a value from the given stream. |
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| 550 | void read(std::istream& is, Value& value) const { |
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| 551 | if (!(is >> value)) |
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| 552 | throw DataFormatError("DefaultReader format error"); |
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| 553 | } |
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| 554 | }; |
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| 555 | |
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[1427] | 556 | template <> |
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| 557 | class DefaultReader<std::string> { |
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| 558 | public: |
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| 559 | typedef std::string Value; |
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| 560 | |
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| 561 | void read(std::istream& is, Value& value) const { |
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| 562 | char c; |
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[2254] | 563 | if (!(is >> std::ws >> c)) |
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| 564 | throw DataFormatError("DefaultReader<string> format error"); |
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[1427] | 565 | is.putback(c); |
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| 566 | switch (c) { |
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| 567 | case '\"': |
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| 568 | QuotedStringReader().read(is, value); |
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| 569 | break; |
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| 570 | default: |
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[2254] | 571 | UnformattedReader().read(is, value); |
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[1427] | 572 | break; |
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| 573 | } |
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| 574 | } |
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| 575 | |
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| 576 | }; |
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| 577 | |
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[2254] | 578 | template <> |
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| 579 | class DefaultReader<char> { |
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| 580 | public: |
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| 581 | typedef char Value; |
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| 582 | |
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| 583 | void read(std::istream& is, Value& value) const { |
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| 584 | char c; |
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| 585 | if (!(is >> std::ws >> c)) |
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| 586 | throw DataFormatError("DefaultReader<char> format error"); |
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| 587 | is.putback(c); |
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| 588 | switch (c) { |
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| 589 | case '\'': |
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| 590 | QuotedCharReader().read(is, value); |
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| 591 | break; |
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| 592 | default: |
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| 593 | { |
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| 594 | int temp; |
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| 595 | if (!(is >> temp)) |
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| 596 | throw DataFormatError("DefaultReader<char> format error"); |
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| 597 | value = (char)temp; |
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| 598 | break; |
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| 599 | } |
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| 600 | } |
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| 601 | } |
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| 602 | }; |
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| 603 | |
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| 604 | template <> |
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| 605 | class DefaultReader<bool> { |
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| 606 | public: |
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| 607 | typedef bool Value; |
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| 608 | |
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| 609 | void read(std::istream& is, Value& value) const { |
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| 610 | std::string rep; |
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| 611 | if (!(is >> rep)) |
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| 612 | throw DataFormatError("DefaultReader<bool> format error"); |
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| 613 | if (rep == "true" || rep == "t" || rep == "1") { |
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| 614 | value = true; |
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| 615 | } else if (rep == "false" || rep == "f" || rep == "0") { |
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| 616 | value = false; |
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| 617 | } else throw DataFormatError("DefaultReader<bool> format error"); |
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| 618 | } |
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| 619 | }; |
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| 620 | |
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[1408] | 621 | template <typename Item> |
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| 622 | class DefaultReader<std::vector<Item> > |
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| 623 | : public PushBackReader<std::vector<Item> > {}; |
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| 624 | |
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| 625 | template <typename Item> |
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| 626 | class DefaultReader<std::deque<Item> > |
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| 627 | : public PushBackReader<std::deque<Item> > {}; |
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| 628 | |
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| 629 | template <typename Item> |
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| 630 | class DefaultReader<std::list<Item> > |
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| 631 | : public PushBackReader<std::list<Item> > {}; |
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| 632 | |
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| 633 | template <typename Item> |
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| 634 | class DefaultReader<std::set<Item> > |
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| 635 | : public InsertReader<std::set<Item> > {}; |
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| 636 | |
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[1852] | 637 | template <typename Key, typename Value> |
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| 638 | class DefaultReader<std::map<Key, Value> > |
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| 639 | : public InsertReader<std::map<Key, Value>, |
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| 640 | DefaultReader<std::pair<Key, Value> > > {}; |
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| 641 | |
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[1408] | 642 | template <typename Item> |
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| 643 | class DefaultReader<std::multiset<Item> > |
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| 644 | : public InsertReader<std::multiset<Item> > {}; |
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| 645 | |
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[1852] | 646 | template <typename Key, typename Value> |
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| 647 | class DefaultReader<std::multimap<Key, Value> > |
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| 648 | : public InsertReader<std::multimap<Key, Value>, |
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| 649 | DefaultReader<std::pair<Key, Value> > > {}; |
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| 650 | |
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| 651 | template <typename First, typename Second> |
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| 652 | class DefaultReader<std::pair<First, Second> > |
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| 653 | : public PairReader<std::pair<First, Second> > {}; |
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| 654 | |
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[1946] | 655 | /// \ingroup item_io |
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[1415] | 656 | /// |
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| 657 | /// \brief The default item reader for skipping a value in the stream. |
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| 658 | /// |
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| 659 | /// The default item reader for skipping a value in the stream. |
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| 660 | /// |
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| 661 | /// \author Balazs Dezso |
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[2254] | 662 | class DefaultSkipper : public UnformattedReader {}; |
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[1415] | 663 | |
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[1946] | 664 | /// \ingroup item_io |
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[1408] | 665 | /// \brief Standard ReaderTraits for the GraphReader class. |
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| 666 | /// |
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| 667 | /// Standard ReaderTraits for the GraphReader class. |
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| 668 | /// It defines standard reading method for all type of value. |
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| 669 | /// \author Balazs Dezso |
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| 670 | struct DefaultReaderTraits { |
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| 671 | |
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| 672 | template <typename _Value> |
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| 673 | struct Reader : DefaultReader<_Value> {}; |
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| 674 | |
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| 675 | typedef DefaultSkipper Skipper; |
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| 676 | |
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| 677 | }; |
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| 678 | |
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| 679 | } |
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| 680 | |
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| 681 | #endif |
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