compression.hpp

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/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2025 Denis Corbin
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// to contact the author, see the AUTHOR file
/*********************************************************************/
 
 
#ifndef COMPRESSION_HPP
#define COMPRESSION_HPP
 
#include "../my_config.h"
#include <string>
 
namespace libdar
{
 
 
 
    enum class compression
    {
    none = 'n',        
    gzip = 'z',        
    bzip2 = 'y',       
    lzo = 'l',         
    xz = 'x',          
    lzo1x_1_15 = 'j',  
        lzo1x_1 = 'k',     
        zstd = 'd',        
    lz4 = 'q',         
    };
 
 
    extern compression char2compression(char a);
 
    extern bool char2compression_mode(char a);
 
    extern char compression2char(compression c, bool per_block = false);
 
    extern std::string compression2string(compression c);
 
    extern compression string2compression(const std::string & a); // throw Erange if an unknown string is given
 
 
} // end of namespace
 
#endif