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OhjurotOhjurot
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INI C++ SAX Parsing
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‎09_INIpp/09_INIpp.vcxproj‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Release</Configuration>
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<ProjectGuid>{8b8057bf-2d16-483e-9766-a5b3e30db44e}</ProjectGuid>
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<RootNamespace>My09INIpp</RootNamespace>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<ConfigurationType>Application</ConfigurationType>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<PlatformToolset>v143</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<PlatformToolset>v143</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="Shared">
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<TargetName>INIpp</TargetName>
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<OutDir>$(SolutionDir)build\bin\$(PlatformShortName)-$(Configuration)\</OutDir>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<TargetName>INIpp</TargetName>
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<OutDir>$(SolutionDir)build\bin\$(PlatformShortName)-$(Configuration)\</OutDir>
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<TargetName>INIpp</TargetName>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<TargetName>INIpp</TargetName>
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<ConformanceMode>true</ConformanceMode>
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<LanguageStandard>stdcpp20</LanguageStandard>
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<Link>
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<SubSystem>Console</SubSystem>
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<ConformanceMode>true</ConformanceMode>
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<LanguageStandard>stdcpp20</LanguageStandard>
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<ConformanceMode>true</ConformanceMode>
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<LanguageStandard>stdcpp20</LanguageStandard>
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<Link>
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<SubSystem>Console</SubSystem>
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<ClCompile Include="INIpp.cpp" />
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<ClCompile Include="main.cpp" />
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<ItemGroup>
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<ClInclude Include="INIpp.hpp" />
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<ItemGroup>
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<None Include="config.ini" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</Project>

‎09_INIpp/09_INIpp.vcxproj.filters‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<Filter Include="Source Files">
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<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
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<Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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</Filter>
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<Filter Include="Header Files">
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<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
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<Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
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</Filter>
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<Filter Include="Resource Files">
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<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
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<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
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</Filter>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="main.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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<ClCompile Include="INIpp.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="INIpp.hpp">
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<Filter>Header Files</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<None Include="config.ini" />
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</ItemGroup>
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</Project>

‎09_INIpp/09_INIpp.vcxproj.user‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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<ShowAllFiles>true</ShowAllFiles>
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</PropertyGroup>
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</Project>

‎09_INIpp/INIpp.cpp‎

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#include "INIpp.hpp"
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void INIpp::Parser::AddFile(const std::filesystem::path& path)
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{
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std::ifstream fileIn(path, std::ios::binary | std::ios::in);
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if (!fileIn.is_open())
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throw Exception(std::format("Can't open file \"{}\"", path.string()));
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fileIn.seekg(0, std::ios::end);
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size_t fileSize = fileIn.tellg();
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fileIn.seekg(0, std::ios::beg);
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std::string fileData(fileSize, ' ');
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fileIn.read(&fileData[0], fileSize);
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AddString(fileData);
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}
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void INIpp::Parser::AddString(const std::string_view& str)
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{
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Reset();
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for (char c : str)
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{
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ProcessChar(c);
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}
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}
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void INIpp::Parser::Reset()
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{
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m_currentSection = "";
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m_currentKey = "";
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m_currentValue = "";
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m_state = State::ReadForData;
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}
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void INIpp::Parser::ProcessChar(char c)
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{
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// Catch controle keys
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if (std::iscntrl(c))
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{
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switch (c)
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{
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case '\t':
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[[fallthrough]];
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case '\n':
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break;
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default:
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return;
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}
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}
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// Normal char parsing
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switch (m_state)
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{
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case State::ReadForData:
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switch (c)
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{
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case ';':
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m_state = State::Comment;
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break;
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case '[':
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m_currentSection.clear();
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m_state = State::Section;
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break;
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case ' ':
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[[fallthrough]];
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case '\t':
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[[fallthrough]];
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case '\n':
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break;
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default:
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m_currentKey.clear();
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m_currentKey += c;
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m_state = State::KVKey;
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break;
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}
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break;
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case State::Comment:
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if (c == '\n')
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{
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m_state = State::ReadForData;
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}
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break;
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case State::Section:
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switch (c)
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{
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case ']':
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m_state = State::ReadForData;
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break;
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case '\n':
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[[fallthrough]];
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case '\t':
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throw Exception("Newlines or Tabs are not allowed in section names!");
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default:
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m_currentSection += c;
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break;
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}
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break;
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case State::KVKey:
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switch (c)
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{
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case ' ':
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m_state = State::KVKeyDone;
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break;
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case '\t':
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[[fallthrough]];
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case '\n':
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throw Exception("Newlines or Tabs are not allowed in the key!");
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default:
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m_currentKey += c;
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break;
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}
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break;
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case State::KVKeyDone:
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switch (c)
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{
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case ' ':
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[[fallthrough]];
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case '\t':
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break;
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case '\n':
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throw Exception("Every key need to have a value!");
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case '=':
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m_state = State::KVEqual;
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break;
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default:
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throw Exception("Keys are not allowed to have spaces in them!");
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}
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break;
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case State::KVEqual:
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switch (c)
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{
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case ' ':
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[[fallthrough]];
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case '\t':
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break;
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case '\n':
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throw Exception("Values can't be empty!");
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default:
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m_currentValue.clear();
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m_currentValue += c;
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m_state = State::KVValue;
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break;
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}
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break;
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case State::KVValue:
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if (c == '\n')
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{
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ParseKVPair(m_currentSection, m_currentKey, m_currentValue);
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m_state = State::ReadForData;
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}
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else
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{
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m_currentValue += c;
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}
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break;
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}
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}
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void INIpp::SAXParser::ParseKVPair(const std::string& section, const std::string& key, const std::string& value)
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{
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if (m_callback)
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{
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m_callback(section, key, value);
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}
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}

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