YamlParser.h

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#ifndef YAMLPARSER_H
#define YAMLPARSER_H
 
#include <memory>
#include <string>
#include <cctype>
#include <stdexcept>
#include <algorithm>
#include <stack>
#include "DBNode.h"
#include "IParser.h"
#include "Logger.h"
 
class YAMLParser : public IParser {
public:
    std::shared_ptr<DBNode> parse(const std::string& input) const override;
 
    void writeToFile(const std::string& filename, const std::shared_ptr<DBNode>& root) const override;
 
    std::shared_ptr<DBNode> readFromFile(const std::string& filename) const override;
 
private:
    bool parseLine(const std::string& line, std::string& key, std::string& value) const;
 
    void adjustIndentation(size_t indent, std::vector<std::shared_ptr<DBNode>>& nodeStack, std::vector<int>& indentStack) const;
 
    static std::shared_ptr<DBNode> parseYAMLDBNode(std::istringstream& stream, int indentLevel);
 
    static void processKeyValue(const std::string& line, std::shared_ptr<DBNode>& node, std::istringstream& stream, int indentLevel);
 
    static void processList(std::shared_ptr<DBNode>& node, std::istringstream& stream, int indentLevel, std::string firstLine = "");
 
    static std::string trim(const std::string& str);
 
    static int countLeadingSpaces(const std::string& str);
 
    bool isListDBNode(const std::shared_ptr<DBNode>& node) const;
 
    double parseNumber(const std::string& value) const;
 
    static DBNode::Value parseScalar(const std::string& value);
 
    DBNode::Value parseValue(const std::string& value) const;
 
    static bool isDouble(const std::string& str);
 
    static bool isInteger(const std::string& str);
};
 
#endif // YAMLPARSER_H