1 | /* ---------------------------------------------------------------------------- |
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2 | libconfig - A library for processing structured configuration files |
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3 | Copyright (C) 2005-2009 Mark A Lindner |
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4 | |
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5 | This file is part of libconfig. |
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6 | |
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7 | This library is free software; you can redistribute it and/or |
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8 | modify it under the terms of the GNU Lesser General Public License |
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9 | as published by the Free Software Foundation; either version 2.1 of |
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10 | the License, or (at your option) any later version. |
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11 | |
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12 | This library is distributed in the hope that it will be useful, but |
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13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 | Lesser General Public License for more details. |
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16 | |
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17 | You should have received a copy of the GNU Library General Public |
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18 | License along with this library; if not, see |
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19 | <http://www.gnu.org/licenses/>. |
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20 | ---------------------------------------------------------------------------- |
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21 | */ |
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22 | |
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23 | #include <iostream> |
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24 | #include <iomanip> |
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25 | #include <cstdlib> |
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26 | #include <libconfig.h++> |
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27 | |
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28 | using namespace std; |
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29 | using namespace libconfig; |
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30 | |
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31 | // This example reads the configuration file 'example.cfg' and displays |
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32 | // some of its contents. |
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33 | |
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34 | int main(int argc, char **argv) |
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35 | { |
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36 | Config cfg; |
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37 | |
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38 | // Read the file. If there is an error, report it and exit. |
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39 | try |
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40 | { |
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41 | cfg.readFile("example.cfg"); |
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42 | } |
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43 | catch(const FileIOException &fioex) |
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44 | { |
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45 | std::cerr << "I/O error while reading file." << std::endl; |
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46 | return(EXIT_FAILURE); |
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47 | } |
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48 | catch(const ParseException &pex) |
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49 | { |
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50 | std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine() |
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51 | << " - " << pex.getError() << std::endl; |
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52 | return(EXIT_FAILURE); |
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53 | } |
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54 | |
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55 | // Get the store name. |
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56 | try |
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57 | { |
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58 | string name = cfg.lookup("name"); |
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59 | cout << "Store name: " << name << endl << endl; |
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60 | } |
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61 | catch(const SettingNotFoundException &nfex) |
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62 | { |
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63 | cerr << "No 'name' setting in configuration file." << endl; |
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64 | } |
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65 | |
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66 | const Setting& root = cfg.getRoot(); |
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67 | |
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68 | // Output a list of all books in the inventory. |
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69 | try |
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70 | { |
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71 | const Setting &books = root["inventory"]["books"]; |
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72 | int count = books.getLength(); |
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73 | |
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74 | cout << setw(30) << left << "TITLE" << " " |
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75 | << setw(30) << left << "AUTHOR" << " " |
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76 | << setw(6) << left << "PRICE" << " " |
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77 | << "QTY" |
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78 | << endl; |
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79 | |
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80 | for(int i = 0; i < count; ++i) |
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81 | { |
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82 | const Setting &book = books[i]; |
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83 | |
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84 | // Only output the record if all of the expected fields are present. |
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85 | string title, author; |
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86 | double price; |
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87 | int qty; |
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88 | |
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89 | if(!(book.lookupValue("title", title) |
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90 | && book.lookupValue("author", author) |
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91 | && book.lookupValue("price", price) |
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92 | && book.lookupValue("qty", qty))) |
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93 | continue; |
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94 | |
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95 | cout << setw(30) << left << title << " " |
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96 | << setw(30) << left << author << " " |
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97 | << '$' << setw(6) << right << price << " " |
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98 | << qty |
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99 | << endl; |
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100 | } |
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101 | cout << endl; |
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102 | } |
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103 | catch(const SettingNotFoundException &nfex) |
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104 | { |
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105 | // Ignore. |
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106 | } |
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107 | |
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108 | // Output a list of all books in the inventory. |
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109 | try |
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110 | { |
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111 | const Setting &movies = root["inventory"]["movies"]; |
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112 | int count = movies.getLength(); |
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113 | |
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114 | cout << setw(30) << left << "TITLE" << " " |
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115 | << setw(10) << left << "MEDIA" << " " |
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116 | << setw(6) << left << "PRICE" << " " |
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117 | << "QTY" |
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118 | << endl; |
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119 | |
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120 | for(int i = 0; i < count; ++i) |
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121 | { |
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122 | const Setting &movie = movies[i]; |
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123 | |
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124 | // Only output the record if all of the expected fields are present. |
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125 | string title, media; |
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126 | double price; |
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127 | int qty; |
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128 | |
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129 | if(!(movie.lookupValue("title", title) |
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130 | && movie.lookupValue("media", media) |
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131 | && movie.lookupValue("price", price) |
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132 | && movie.lookupValue("qty", qty))) |
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133 | continue; |
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134 | |
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135 | cout << setw(30) << left << title << " " |
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136 | << setw(10) << left << media << " " |
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137 | << '$' << setw(6) << right << price << " " |
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138 | << qty |
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139 | << endl; |
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140 | } |
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141 | cout << endl; |
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142 | } |
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143 | catch(const SettingNotFoundException &nfex) |
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144 | { |
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145 | // Ignore. |
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146 | } |
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147 | |
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148 | return(EXIT_SUCCESS); |
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149 | } |
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150 | |
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151 | // eof |
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