dl_file_ini.h

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#pragma once
 
#include <map>
#include <unordered_map>
 
#include "base/dl_string.h"
 
namespace dl
{
struct FileIniLine
{
    enum class Type
    {
        VALUE,
        COMMENT,
        SECTION,
        BLANK
    };
    Type _vtype;
    std::string value;
    std::string key;
};
 
class FileIniSectionNode
{
    friend class FileIni;
public:
    bool Set(std::string_view key, std::string_view value);
    bool Add(std::string_view key, std::string_view value);
    //
    bool Change(std::string_view key, std::string_view value);
 
    bool Del(std::string_view key);
 
    bool Get(std::string_view key, FileIniLine& ret);
private:
    std::vector<FileIniLine> _vecData;
    std::unordered_map<std::string, size_t> _mapKeyIndex;
};
 
class FileIni;
class FileIniSection
{
    friend class FileIni;
public:
    FileIniSection() {}
private:
    FileIniSection(FileIni* parent) :
        _ini{ parent }
    {}
public:
    void Set(std::string_view key, std::string_view value);
    void Add(std::string_view key, std::string_view value);
 
    bool Change(std::string_view key, std::string_view value);
    bool Del(std::string_view key);
    std::string Get(std::string_view key);
private:
    std::vector<size_t> _allSectionNode;
    FileIni* _ini;
};

class FileIni
{
    friend class FileIniSection;
public:
    FileIni();
 
    bool Open(std::string_view path_name);
 
    bool Save(std::string_view path_name);
 
    bool DelSection(std::string_view key);
 
    FileIniSection& AddSection(std::string_view name);
 
    FileIniSection& GetSection(std::string_view key);
 
    std::vector<std::string> GetAllSectionName();
 
private:
    std::vector<FileIniSectionNode> _allSection;
    std::unordered_map<std::string, FileIniSection> _mapSection;
    FileIniSection _secNull;
};
 
 
}