path.hpp

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/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2024 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 PATH_HPP
#define PATH_HPP
 
#include "../my_config.h"
#include <list>
#include <string>
#include "integers.hpp"
#include "erreurs.hpp"
 
namespace libdar
{
 
 
    class path
    {
    public :
 
        path(const std::string & s, bool x_undisclosed = false);
 
        path(const path & ref);
 
    path(path && ref) noexcept = default;
 
        path & operator = (const path & ref);
 
    path & operator = (path && ref) noexcept = default;
 
    ~path() = default;
 
        bool operator == (const path & ref) const;
    bool operator != (const path & ref) const { return !(*this == ref); };
 
 
    std::string basename() const;
 
 
        void reset_read() const { reading = dirs.begin(); };
 
 
        bool read_subdir(std::string & r) const;
 
        bool is_relative() const { return relative; };
 
    bool is_absolute() const { return !relative; };
 
    bool is_undisclosed() const { return undisclosed; };
 
 
        bool pop(std::string & arg);
 
 
        bool pop_front(std::string & arg);
 
 
        path operator + (const path & arg) const { path tmp = *this; tmp += arg; return tmp; };
 
    path append(const std::string & sub) const { path tmp = *this; if(sub.find_first_of("/") != std::string::npos) throw SRC_BUG; tmp += sub; return tmp; };
 
 
        path & operator += (const path & arg);
 
    path & operator += (const std::string & sub);
 
 
        bool is_subdir_of(const path & p, bool case_sensit) const;
 
 
        std::string display() const;
 
 
    std::string display_without_root() const;
 
 
        U_I degre() const { return dirs.size() + (relative ? 0 : 1); };
 
    void explode_undisclosed() const;
 
    private :
        mutable std::list<std::string>::const_iterator reading;
        std::list<std::string> dirs;
        bool relative;
    bool undisclosed;
 
        void reduce();
    void init(const std::string & chem, bool x_undisclosed);
    };
 
    extern const std::string PSEUDO_ROOT;
 
    extern const path FAKE_ROOT;
 
 
} // end of namespace
 
#endif