Param.h

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#ifndef KIDS_PARAM_H
#define KIDS_PARAM_H
 
#include <cstring>
#include <fstream>
#include <iomanip>
#include <memory>
#include <sstream>
#include <string>
 
#include "configor/json.hpp"
#include "kids/phys.h"
 
inline const char *basename(const char *filepath) {
    const char *base = strrchr(filepath, '/');
#ifdef _WIN32  // windows system
    if (!base) base = strrchr(filepath, '\\');
#endif
    return base ? (base + 1) : filepath;
}
 
#define LOC() (std::string(basename(__FILE__)) + ":" + std::to_string(__LINE__))
 
namespace PROJECT_NS {
 
class Param final {
   public:
    using JSON           = configor::json;
    using JSON_Exception = configor::configor_exception;
 
    enum LoadOption {
        fromString,  
        fromFile     
    };
 
    Param(const std::string &input, LoadOption option);
 
    bool has_key(const std::string &key);
 
    std::shared_ptr<JSON> pjson();
 
    std::string repr();
 
    bool get_bool(const std::string &key, const std::string &loc, const bool &default_value);
    bool get_bool(const std::string &key, const std::string &loc = "__loc__");
 
    int get_int(const std::string &key, const std::string &loc, const int &default_value);
    int get_int(const std::string &key, const std::string &loc = "__loc__");
 
    std::string get_string(const std::string &key, const std::string &loc, const std::string &default_value);
    std::string get_string(const std::string &key, const std::string &loc = "__loc__");
 
    double get_double(const std::string &key, const std::string &loc, const phys::dimension7 &qdim,
                      const double &default_value = double());
    double get_double(const std::string &key, const std::string &loc, const double &default_value);
    double get_double(const std::string &key, const std::string &loc = "__loc__");
 
   private:
    std::shared_ptr<JSON> pj;
 
    template <typename T, bool Require = false>
    T get(const std::string &key, const std::string &loc, const phys::dimension7 &qdim, const T &default_value);
};
 
};  // namespace PROJECT_NS
 
#endif  // KIDS_PARAM_H