zip_reader.h

/*********************************************************************************************************************************************/
/*  DocWire SDK: Award-winning modern data processing in C++20. SourceForge Community Choice & Microsoft support. AI-driven processing.      */
/*  Supports nearly 100 data formats, including email boxes and OCR. Boost efficiency in text extraction, web data extraction, data mining,  */
/*  document analysis. Offline processing possible for security and confidentiality                                                          */
/*                                                                                                                                           */
/*  Copyright (c) SILVERCODERS Ltd, http://silvercoders.com                                                                                  */
/*  Project homepage: https://github.com/docwire/docwire                                                                                     */
/*                                                                                                                                           */
/*  SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-DocWire-Commercial                                                                  */
/*********************************************************************************************************************************************/
 
#ifndef DOCWIRE_ZIP_READER_H
#define DOCWIRE_ZIP_READER_H
 
#include "core_export.h"
#include "data_source.h"
#include <string>
#include "pimpl.h"
 
namespace docwire
{
 
class DOCWIRE_CORE_EXPORT zip_reader : public with_pimpl<zip_reader>
{
    public:
        zip_reader(const data_source& data);
        ~zip_reader();
        void open();
        bool exists(const std::string& file_name) const;
        bool read(const std::string& file_name, std::string* contents, int num_of_chars = 0);
        bool getFileSize(const std::string& file_name, unsigned long& file_size);
        bool readChunk(const std::string& file_name, std::string* contents, int num_of_chars);
        bool readChunk(const std::string& file_name, char* contents, int num_of_chars, int& readed, bool add_null_terminator = true);
        void closeReadingFileForChunks();
        bool loadDirectory();
};
 
}; // namespace docwire
 
#endif