LhaParser.h

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#ifndef HYPERISO_LHA_READER_H
#define HYPERISO_LHA_READER_H
 
#include <string>
#include <map>
#include <memory>
#include <filesystem>
#include <climits>
#include <regex>
#include <fstream>
#include <sstream>
#include <vector>
#include <algorithm>
#include <unordered_set>
#include <iomanip>
 
#include "Include.h"
#include "LhaBlockPrototype.h" 
#include "IParser.h"
#include "lha_blocks.h"
#include "lha_elements.h"
#include "Logger.h"
#include "DBNode.h"
 
enum class TokenType {
    FLOAT,  
    INTEGER,
    BLOCK,  
    DECAY,  
    NEWLINE,
    SKIP,   
    COMMENT,
    WORD,   
    OTHER   
};
 
const std::regex analyzer_rx(
    R"x(((?:[+-])?(?:\d+\.\d*|\.\d+)(?:[eEdD][+-]\d+)?|(\d+(?:[eEdD][+-]\d+)?))|(?:[+-]?\d+(?!\.))|(block)|(decay)|(\n)|([ \t]+)|(#.*)|([\w\=\.]+)|([^#]*))x",
    std::regex_constants::icase
); 
 
struct Token {
    TokenType type;     
    std::string value;  
    int row;            
    int col;            
};
 
class LhaParser : public IParser {
private:
    std::unordered_set<Prototype> blockPrototypes;                     
    void fill_prototypes(std::string_view lha_path);
 
    std::vector<Token> tokenize(const std::string& src) const;
 
    std::map<BlockName, std::vector<std::vector<std::string>>> parse_tokens(std::vector<Token> tokens, bool comments = false) const;
 
    void addBlock(std::map<BlockName, std::shared_ptr<LhaBlock>>& blocks, const BlockName& id, const std::vector<std::vector<std::string>>& lines) const;
 
    Prototype findPrototype(BlockName name) const;
 
    std::shared_ptr<DBNode> toDBNode(std::map<BlockName, std::shared_ptr<LhaBlock>> blocks) const;
 
public:
    std::shared_ptr<DBNode> readFromFile(const std::string& input_file) const override;
 
    std::shared_ptr<DBNode> parse(const std::string& src) const override;
 
    void writeToFile(const std::string& filename, const std::shared_ptr<DBNode>& root) const;
 
    void set_prototypes(const std::unordered_set<Prototype>& prototypes);
};
 
#endif // HYPERISO_LHA_READER_H