1 | /* |
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2 | orxonox - the future of 3D-vertical-scrollers |
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3 | |
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4 | Copyright (C) 2004 orx |
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5 | |
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6 | This program is free software; you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation; either version 2, or (at your option) |
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9 | any later version. |
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10 | |
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11 | ### File Specific: |
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12 | main-programmer: Benjamin Grauer |
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13 | co-programmer: Christian Meyer |
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14 | |
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15 | 2005-08-14: complete reimplementation: |
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16 | now the File is parsed at the initialisation, |
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17 | and informations is gathered there. |
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18 | */ |
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19 | |
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20 | |
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21 | #include "ini_parser.h" |
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22 | |
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23 | #if HAVE_CONFIG_H |
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24 | #include <config.h> |
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25 | #endif |
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26 | |
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27 | #include <cassert> |
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28 | #include <algorithm> |
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29 | |
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30 | #ifdef DEBUG_LEVEL |
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31 | #include "../../../lib/util/debug.h" |
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32 | #else |
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33 | #define PRINTF(x) printf |
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34 | #define PRINT(x) printf |
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35 | #endif |
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36 | |
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37 | |
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38 | /// /// /// /// /// /// |
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39 | /// INI-PARSER NODE /// |
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40 | /// /// /// /// /// /// |
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41 | IniParser::Node::Node(const std::string& name, const std::string& comment) |
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42 | { |
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43 | this->_name = name; |
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44 | this->_comment = comment; |
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45 | } |
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46 | |
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47 | /// /// /// /// /// //// |
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48 | /// INI-PARSER ENTRY /// |
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49 | /// /// /// /// /// //// |
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50 | IniParser::Entry::Entry(const std::string& name, const std::string& value, const std::string& comment) |
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51 | : IniParser::Node(name, comment), _value(value) |
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52 | {} |
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53 | |
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54 | void IniParser::Entry::debug() const |
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55 | { |
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56 | printf(" %s = %s\n", this->name().c_str(), this->_value.c_str()); |
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57 | } |
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58 | |
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59 | |
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60 | /// /// /// /// /// /// /// |
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61 | /// INI-PARSER SECTION /// |
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62 | /// /// /// /// /// /// /// |
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63 | IniParser::Section::Section(const std::string& sectionName, const std::string& comment) |
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64 | : IniParser::Node(sectionName, comment) |
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65 | {} |
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66 | |
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67 | IniParser::Entry& IniParser::Section::addEntry(const std::string& entryName, const std::string& value, const std::string& comment) |
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68 | { |
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69 | Entry::iterator entry = std::find(this->_entries.begin(), this->_entries.end(), entryName); |
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70 | if (entry == this->_entries.end()) |
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71 | { |
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72 | this->_entries.push_back(Entry(entryName, value, comment)); |
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73 | entry = --this->_entries.end(); |
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74 | } |
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75 | return *entry; |
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76 | } |
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77 | |
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78 | bool IniParser::Section::editEntry(const std::string& entryName, const std::string& value, bool createMissing) |
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79 | { |
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80 | Entry::iterator entry = std::find(this->_entries.begin(), this->_entries.end(), entryName); |
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81 | if (entry == this->_entries.end()) |
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82 | { |
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83 | if (createMissing) |
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84 | { |
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85 | this->addEntry(entryName, value); |
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86 | return true; |
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87 | } |
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88 | else |
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89 | return false; |
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90 | } |
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91 | (*entry).setValue(value); |
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92 | return true; |
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93 | } |
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94 | |
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95 | const std::string& IniParser::Section::getValue(const std::string& entryName, const std::string& defaultValue) const |
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96 | { |
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97 | Entry::const_iterator entry = std::find(this->_entries.begin(), this->_entries.end(), entryName); |
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98 | if (entry != this->_entries.end()) |
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99 | return (*entry).value(); |
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100 | else |
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101 | return defaultValue; |
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102 | } |
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103 | |
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104 | bool IniParser::Section::setEntryComment(const std::string& entryName, const std::string& comment) |
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105 | { |
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106 | Entry::iterator entry = std::find(this->_entries.begin(), this->_entries.end(), entryName); |
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107 | if (entry != this->_entries.end()) |
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108 | { |
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109 | (*entry).setComment(comment); |
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110 | return true; |
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111 | } |
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112 | return false; |
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113 | } |
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114 | |
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115 | const std::string& IniParser::Section::getEntryComment(const std::string& entryName) const |
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116 | { |
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117 | Entry::const_iterator entry = std::find(this->_entries.begin(), this->_entries.end(), entryName); |
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118 | if (entry != this->_entries.end()) |
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119 | { |
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120 | return (*entry).comment(); |
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121 | } |
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122 | return IniParser::_emptyString; |
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123 | } |
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124 | |
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125 | |
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126 | IniParser::Entry* IniParser::Section::getEntry(const std::string& entryName) |
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127 | { |
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128 | Entry::iterator entry = std::find(this->_entries.begin(), this->_entries.end(), entryName); |
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129 | if (entry != this->_entries.end()) |
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130 | return &(*entry); |
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131 | else |
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132 | return NULL; |
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133 | } |
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134 | |
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135 | IniParser::Entry::const_iterator IniParser::Section::getEntryIt(const std::string& entryName) const |
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136 | { |
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137 | return std::find(this->_entries.begin(), this->_entries.end(), entryName); |
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138 | } |
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139 | |
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140 | void IniParser::Section::clear() |
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141 | { |
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142 | this->_entries.clear(); |
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143 | } |
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144 | |
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145 | void IniParser::Section::debug() const |
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146 | { |
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147 | printf(" [%s]\n", this->name().c_str()); |
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148 | for(Entry::const_iterator entry = this->_entries.begin(); entry != this->_entries.end(); ++entry) |
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149 | (*entry).debug(); |
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150 | } |
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151 | |
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152 | |
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153 | |
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154 | /// /// /// /// /// /// /// |
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155 | /// INI-PARSER DOCUMENT /// |
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156 | /// /// /// /// /// /// /// |
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157 | IniParser::Document::Document(const std::string& fileName, const std::string& comment) |
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158 | : IniParser::Node(fileName, comment) |
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159 | {} |
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160 | |
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161 | IniParser::Section& IniParser::Document::addSection(const std::string& sectionName, const std::string& comment) |
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162 | { |
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163 | Section::iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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164 | if (section == this->_sections.end()) |
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165 | { |
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166 | this->_sections.push_back(Section(sectionName, comment)); |
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167 | return *(--_sections.end()); |
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168 | } |
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169 | else |
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170 | return *section; |
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171 | } |
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172 | |
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173 | bool IniParser::Document::removeSection(const std::string& sectionName) |
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174 | { |
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175 | Section::iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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176 | if (section != this->_sections.end()) |
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177 | { |
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178 | this->_sections.erase(section); |
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179 | return true; |
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180 | } |
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181 | else |
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182 | return false; |
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183 | } |
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184 | |
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185 | bool IniParser::Document::setSectionComment(const std::string& sectionName, const std::string& comment) |
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186 | { |
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187 | Section::iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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188 | if (section != this->_sections.end()) |
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189 | { |
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190 | (*section).setComment(comment); |
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191 | return true; |
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192 | } |
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193 | else |
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194 | return false; |
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195 | } |
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196 | |
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197 | |
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198 | |
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199 | IniParser::Section* IniParser::Document::getSection(const std::string& sectionName) |
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200 | { |
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201 | Section::iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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202 | if (section != this->_sections.end()) |
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203 | { |
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204 | return &(*section); |
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205 | } |
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206 | else |
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207 | return NULL; |
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208 | } |
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209 | |
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210 | IniParser::Section::const_iterator IniParser::Document::getSectionIt(const std::string& sectionName) const |
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211 | { |
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212 | Section::const_iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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213 | return section; |
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214 | } |
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215 | |
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216 | bool IniParser::Document::addEntry(const std::string& sectionName, const std::string& entryName, const std::string& value, const std::string& comment) |
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217 | { |
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218 | // locating section |
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219 | Section::iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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220 | if (section == this->_sections.end()) |
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221 | { |
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222 | // creating section if not found!! |
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223 | this->_sections.push_back(Section(sectionName)); |
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224 | section = --_sections.end(); |
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225 | } |
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226 | |
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227 | (*section).addEntry(entryName, value, comment); |
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228 | return true; |
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229 | } |
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230 | |
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231 | bool IniParser::Document::editEntry(const std::string& sectionName, const std::string& entryName, const std::string& value, bool createMissing) |
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232 | { |
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233 | // locating section |
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234 | Section::iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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235 | if (section == this->_sections.end()) |
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236 | { |
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237 | // creating section if not found!! |
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238 | if (createMissing) |
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239 | { |
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240 | this->_sections.push_back(Section(sectionName)); |
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241 | section = --_sections.end(); |
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242 | } |
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243 | else |
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244 | return false; |
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245 | } |
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246 | |
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247 | return (*section).editEntry(entryName, value, createMissing); |
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248 | } |
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249 | |
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250 | const std::string& IniParser::Document::getValue(const std::string& sectionName, const std::string& entryName, const std::string& defaultValue) const |
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251 | { |
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252 | // locating section |
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253 | Section::const_iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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254 | if (section != this->_sections.end()) |
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255 | return (*section).getValue(entryName, defaultValue); |
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256 | return defaultValue; |
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257 | } |
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258 | |
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259 | bool IniParser::Document::setEntryComment(const std::string& sectionName, const std::string& entryName, const std::string& comment) |
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260 | { |
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261 | // locating section |
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262 | Section::iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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263 | if (section != this->_sections.end()) |
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264 | return (*section).setEntryComment(entryName, comment); |
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265 | else |
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266 | return false; |
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267 | } |
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268 | |
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269 | const std::string& IniParser::Document::getEntryComment(const std::string& sectionName, const std::string& entryName) const |
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270 | { |
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271 | Section::const_iterator section = std::find(this->_sections.begin(), this->_sections.end(), sectionName); |
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272 | if (section != this->_sections.end()) |
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273 | return (*section).getEntryComment(entryName); |
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274 | else |
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275 | return IniParser::_emptyString; |
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276 | } |
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277 | |
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278 | void IniParser::Document::clear() |
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279 | { |
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280 | this->_sections.clear(); |
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281 | } |
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282 | |
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283 | void IniParser::Document::debug() const |
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284 | { |
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285 | for(Section::const_iterator section = this->_sections.begin(); section != this->_sections.end(); ++section) |
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286 | (*section).debug(); |
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287 | } |
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288 | |
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289 | |
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290 | |
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291 | |
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292 | /// /// /// /// /// /// // |
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293 | /// INI-PARSER ITSELF //// |
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294 | /// /// /// /// /// /// // |
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295 | const std::string IniParser::_emptyString = ""; |
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296 | /** |
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297 | * @brief constructs an IniParser using a file |
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298 | * @param fileName: the path and name of the file to parse |
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299 | */ |
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300 | IniParser::IniParser (const std::string& fileName) |
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301 | : _document(fileName) |
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302 | { |
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303 | this->_fileName = fileName; |
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304 | if (!fileName.empty()) |
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305 | this->readFile(fileName); |
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306 | } |
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307 | |
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308 | |
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309 | /** |
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310 | * @brief removes the IniParser from memory |
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311 | */ |
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312 | IniParser::~IniParser () |
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313 | {} |
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314 | |
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315 | /** |
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316 | * @brief opens a file to parse |
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317 | * @param fileName: path and name of the new file to parse |
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318 | * @param keepSettings if the Settings (if already some are set) should be kept (false by default) |
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319 | * @return true on success false otherwise; |
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320 | * |
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321 | * If there was already an opened file, the file will be closed, |
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322 | * and the new one will be opened. |
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323 | */ |
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324 | bool IniParser::readFile(const std::string& fileName, bool keepSettings) |
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325 | { |
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326 | FILE* stream; //< The stream we use to read the file. |
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327 | int lineCount = 0; //< The Count of lines read. |
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328 | std::list<std::string> commentList; //< A list of Comments. |
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329 | Section* currentSection = NULL; |
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330 | |
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331 | if (!keepSettings) |
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332 | this->_document.clear(); |
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333 | |
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334 | if( (stream = fopen (fileName.c_str(), "r")) == NULL) |
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335 | { |
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336 | PRINTF(1)("IniParser could not open %s for reading\n", fileName.c_str()); |
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337 | return false; |
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338 | } |
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339 | else |
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340 | { |
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341 | this->_fileName = fileName; |
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342 | |
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343 | ///////////////////////////// |
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344 | // READING IN THE INI-FILE // |
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345 | ///////////////////////////// |
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346 | char lineBuffer[PARSELINELENGHT+1]; |
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347 | char buffer[PARSELINELENGHT+1]; |
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348 | const char* lineBegin; |
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349 | char* ptr; |
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350 | |
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351 | while( fgets (lineBuffer, PARSELINELENGHT, stream)) |
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352 | { |
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353 | lineBegin = lineBuffer; |
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354 | // remove newline char, and \0-terminate |
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355 | if( (ptr = strchr( lineBuffer, '\n')) != NULL) |
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356 | *ptr = 0; |
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357 | else |
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358 | lineBuffer[PARSELINELENGHT] = 0; |
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359 | // cut up to the beginning of the line. |
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360 | while((*lineBegin == ' ' || *lineBegin == '\t') && lineBegin < lineBuffer + strlen(lineBuffer)) |
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361 | ++lineBegin; |
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362 | |
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363 | if ( !strcmp( lineBegin, "" ) ) |
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364 | continue; |
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365 | |
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366 | // check if we have a FileComment |
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367 | if ( (*lineBegin == '#' || *lineBegin == ';')) |
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368 | { |
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369 | std::string newCommenLine = lineBegin; |
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370 | commentList.push_back(newCommenLine); |
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371 | continue; |
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372 | } |
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373 | if (lineCount == 0 && !commentList.empty()) |
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374 | { |
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375 | this->setNodeComment(&this->_document, &commentList); |
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376 | lineCount++; |
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377 | } |
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378 | |
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379 | // check for section identifyer |
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380 | else if( sscanf (lineBegin, "[%s", buffer) == 1) |
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381 | { |
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382 | if( (ptr = strchr( buffer, ']')) != NULL) |
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383 | { |
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384 | *ptr = 0; |
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385 | Section& node = this->_document.addSection(buffer); |
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386 | setNodeComment(&node, &commentList); |
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387 | currentSection = &node; |
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388 | } |
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389 | } |
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390 | // check for Entry identifier (Entry = Value) |
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391 | else if( (ptr = strchr( lineBegin, '=')) != NULL) |
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392 | { |
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393 | if (currentSection == NULL) |
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394 | { |
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395 | PRINTF(2)("Not in a Section yet for %s\n", lineBegin); |
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396 | lineCount++; |
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397 | continue; |
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398 | } |
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399 | if( ptr == lineBegin) |
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400 | { |
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401 | lineCount++; |
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402 | continue; |
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403 | } |
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404 | char* valueBegin = ptr+1; |
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405 | while ((*valueBegin == ' ' || *valueBegin == '\t') && valueBegin <= lineBegin + strlen(lineBegin)) |
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406 | ++valueBegin; |
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407 | char* valueEnd = valueBegin + strlen(valueBegin)-1; |
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408 | while ((*valueEnd == ' ' || *valueEnd == '\t') && valueEnd >= valueBegin) |
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409 | --valueEnd; |
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410 | valueEnd[1] = '\0'; |
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411 | char* nameEnd = ptr-1; |
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412 | while ((*nameEnd == ' ' || *nameEnd == '\t' ) && nameEnd >= lineBegin) |
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413 | --nameEnd; |
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414 | nameEnd[1] = '\0'; |
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415 | |
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416 | Entry& node = currentSection->addEntry(lineBegin, valueBegin); |
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417 | this->setNodeComment(&node, &commentList); |
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418 | |
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419 | lineCount++; |
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420 | } |
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421 | } |
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422 | } |
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423 | fclose(stream); |
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424 | return true; |
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425 | } |
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426 | |
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427 | |
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428 | /** |
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429 | * @brief opens a file and writes to it |
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430 | * @param fileName: path and name of the new file to write to |
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431 | * @return true on success false otherwise |
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432 | */ |
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433 | bool IniParser::writeFile(const std::string& fileName) const |
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434 | { |
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435 | FILE* stream; //!< The stream we use to read the file. |
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436 | if( fileName.empty()) |
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437 | return false; |
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438 | |
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439 | if( (stream = fopen (fileName.c_str(), "w")) == NULL) |
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440 | { |
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441 | PRINTF(1)("IniParser could not open %s for writing\n", fileName.c_str()); |
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442 | return false; |
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443 | } |
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444 | else |
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445 | { |
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446 | if (!this->_document.comment().empty()) |
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447 | fprintf(stream, "%s\n\n", this->_document.comment().c_str()); |
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448 | |
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449 | Section::const_iterator section; |
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450 | for (section = this->_document.sections().begin(); section != this->_document.sections().end(); ++section) |
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451 | { |
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452 | if (!(*section).comment().empty()) |
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453 | fprintf(stream, "%s", (*section).comment().c_str()); |
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454 | fprintf(stream, "\n [%s]\n", (*section).name().c_str()); |
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455 | |
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456 | Entry::const_iterator entry; |
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457 | for (entry = (*section).entries().begin(); entry != (*section).entries().end(); ++entry) |
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458 | { |
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459 | if (!(*entry).comment().empty()) |
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460 | fprintf(stream, "%s", (*entry).comment().c_str()); |
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461 | fprintf(stream, " %s = %s\n", (*entry).name().c_str(), (*entry).value().c_str()); |
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462 | } |
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463 | } |
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464 | } |
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465 | fclose(stream); |
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466 | return true; |
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467 | } |
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468 | |
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469 | void IniParser::setFileComment(const std::string& fileComment) |
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470 | { |
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471 | this->_document.setComment(fileComment); |
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472 | } |
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473 | |
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474 | /** |
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475 | * @brief adds a section to the list of Sections, |
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476 | * if no Section list is availiable, it will create it |
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477 | * @param sectionName the Name of the section to add |
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478 | * @return true on success... there is only success or segfault :) |
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479 | */ |
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480 | IniParser::Section& IniParser::addSection(const std::string& sectionName) |
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481 | { |
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482 | return this->_document.addSection(sectionName); |
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483 | } |
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484 | |
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485 | |
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486 | /** |
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487 | * @brief adds a new Entry to either the currentSection or the section called by sectionName |
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488 | * @param entryName the Name of the Entry to add |
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489 | * @param value the value to assign to this entry |
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490 | * @param sectionName if NULL then this entry will be set to the currentSection |
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491 | * otherwise to the section refered to by sectionName. |
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492 | * If both are NULL no entry will be added |
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493 | * @return The Entry, that was added. |
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494 | */ |
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495 | bool IniParser::addEntry(const std::string& sectionName, const std::string& entryName, const std::string& value, const std::string& comment) |
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496 | { |
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497 | return this->_document.addEntry(sectionName, entryName, value, comment); |
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498 | } |
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499 | |
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500 | /** |
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501 | * @brief edits the entry speciefied by entryName in sectionName/currentSection or creates it if it doesn't exist |
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502 | * @param entryName the Name of the Entry to add |
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503 | * @param value the value to assign to this entry |
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504 | * @param sectionName if NULL then this entry will be set to the currentSection |
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505 | * otherwise to the section refered to by sectionName. |
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506 | * If both are NULL no entry will be added |
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507 | * @return true if everything is ok false on error |
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508 | */ |
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509 | bool IniParser::editEntry(const std::string& sectionName, const std::string& entryName, const std::string& value, bool createMissing) |
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510 | { |
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511 | return this->_document.editEntry(sectionName, entryName, value, createMissing); |
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512 | } |
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513 | |
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514 | |
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515 | /** |
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516 | * @brief directly acesses an entry in a section |
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517 | * @param sectionName: the section where the entry is to be found |
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518 | * @param entryName: the name of the entry to find |
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519 | * @param defaultValue: what should be returned in case the entry cannot be found |
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520 | * @return The Value of the Entry. |
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521 | */ |
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522 | const std::string& IniParser::getValue(const std::string& sectionName, const std::string& entryName, const std::string& defaultValue) const |
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523 | { |
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524 | return this->_document.getValue(sectionName, entryName, defaultValue); |
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525 | } |
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526 | |
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527 | /** |
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528 | * Set the Comment of a specified Entry. |
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529 | * @param comment the Comment to set |
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530 | * @param entryName the Name of the Entry |
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531 | * @param sectionName the Name of the Section |
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532 | */ |
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533 | void IniParser::setEntryComment(const std::string& sectionName, const std::string& entryName, const std::string& comment) |
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534 | { |
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535 | this->_document.setEntryComment(sectionName, entryName, comment); |
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536 | } |
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537 | |
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538 | /** |
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539 | * @param entryName the Entry to query for |
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540 | * @param sectionName the Section to Query for |
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541 | * @returns the queried Comment. |
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542 | */ |
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543 | const std::string& IniParser::getEntryComment(const std::string& sectionName, const std::string& entryName) const |
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544 | { |
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545 | return this->_document.getEntryComment(sectionName, entryName); |
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546 | } |
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547 | |
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548 | /** |
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549 | * @brief output the whole tree in a nice and easy way. |
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550 | */ |
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551 | void IniParser::debug() const |
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552 | { |
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553 | PRINT(0)("Iniparser '%s' - debug\n", this->_fileName.c_str()); |
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554 | if (!this->_document.comment().empty()) |
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555 | PRINT(0)("FileComment:\n '%s'\n\n", this->_document.comment().c_str()); |
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556 | |
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557 | if (!this->_document.sections().empty()) |
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558 | this->_document.debug(); |
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559 | else |
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560 | PRINTF(0)("no Sections Defined in this ini-file (%s).\n", _fileName.c_str()); |
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561 | } |
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562 | |
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563 | |
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564 | /** |
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565 | * takes lines together to form one NodeComment, ereasing the commentList |
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566 | */ |
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567 | void IniParser::setNodeComment(Node* node, std::list<std::string>* comments) |
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568 | { |
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569 | assert(node != NULL); |
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570 | assert(comments != NULL); |
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571 | |
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572 | std::string comment; |
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573 | if (comments->empty()) |
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574 | { |
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575 | comment = ""; |
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576 | } |
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577 | else |
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578 | { |
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579 | while (!comments->empty()) |
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580 | { |
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581 | if (!comment.empty()) |
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582 | comment += "\n"; |
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583 | comment += comments->front(); |
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584 | comments->pop_front(); |
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585 | } |
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586 | } |
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587 | node->setComment(comment); |
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588 | } |
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589 | |
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590 | |
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