fsystem.hpp

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#pragma once
 
#include <regex>
#include "indep/common.hpp"
#include "indep/macro.hpp"
#include "indep/helper/tmay.inl"
#ifdef BY_BUILD_PLATFORM_IS_WINDOWS
#    include <direct.h>
#    include <io.h>
#    define getcwd _getcwd
#else
#    include <dirent.h>
#    include <unistd.h>
#endif
#include <vector>
 
namespace by {
 
    class _nout fsystem {
        BY(ME(fsystem))
 
        struct entry {
#ifdef BY_BUILD_PLATFORM_IS_WINDOWS
            _finddata_t file;
            intptr_t dir;
#else
            DIR* dir;
#endif
            std::string path;
        };
 
        typedef std::vector<entry> entries;
 
        class _nout iterator {
            BY(ME(iterator))
 
        public:
            iterator(const std::string& path);
            ~iterator();
 
        public:
            const std::string& operator*();
            me& operator++(int);
            operator nbool() const;
            const std::string* operator->() const;
 
        public:
            void rel();
 
            nbool next();
 
            const std::string& get() const;
            std::string getName() const;
            std::string getDir() const;
            nbool isEnd() const;
 
        private:
            void _addDir(const std::string& dirPath);
            void _popDir();
            std::string _filterPath(const std::string& org);
            nbool _isGlobPattern(const std::string& path);
            std::regex _convertToRegex(const std::string& globPattern);
 
        private:
            entries _entries;
            std::string _nowPath;
            tmay<std::regex> _pattern;
        };
 
    public:
        static iterator find(const std::string& path);
 
        static std::string getCurrentDir();
        static const std::string& getDelimiter();
    };
} // namespace by