config_tree.hh

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#pragma once
 
// standard library
#include <string>
 
// external libraries
#include <boost/json.hpp>
 
namespace DiFfRG
{
  namespace json = boost::json;
 
  namespace internal
  {
    bool has_toml_extension(const std::string &filename);
  } // namespace internal
 
  class ConfigTree
  {
  public:
    ConfigTree();
 
    ConfigTree(const std::string filename);
 
    ConfigTree(const char *filename);
 
    ConfigTree(const json::value &v);
 
    static ConfigTree from_json_string(const std::string &content);
 
    static ConfigTree from_toml_string(const std::string &content);
 
    json::value &operator()();
 
    operator json::value() const;
 
    bool operator==(const ConfigTree &other) const;
 
    double get_double(const std::string &key) const;
 
    int get_int(const std::string &key) const;
 
    uint get_uint(const std::string &key) const;
 
    std::string get_string(const std::string &key) const;
 
    bool get_bool(const std::string &key) const;
 
    double get_double(const std::string &key, const double def) const;
 
    int get_int(const std::string &key, const int def) const;
 
    uint get_uint(const std::string &key, const uint def) const;
 
    std::string get_string(const std::string &key, const std::string &def) const;
 
    bool get_bool(const std::string &key, const bool def) const;
 
    bool contains(const std::string &key) const;
 
    double get_double_or_warn(const std::string &key, const double def) const;
    int get_int_or_warn(const std::string &key, const int def) const;
    uint get_uint_or_warn(const std::string &key, const uint def) const;
    std::string get_string_or_warn(const std::string &key, const std::string &def) const;
    bool get_bool_or_warn(const std::string &key, const bool def) const;
    void set_double(const std::string &key, double value);
 
    void set_int(const std::string &key, int value);
 
    void set_uint(const std::string &key, uint value);
 
    void set_string(const std::string &key, const std::string &value);
 
    void set_bool(const std::string &key, bool value);
 
    void print(std::ostream &os) const;
 
    void print_toml(std::ostream &os) const;
 
  private:
    json::value value;
 
    void pretty_print(std::ostream &os, json::value const &v, std::string *indent = nullptr) const;
  };
 
  using JSONValue [[deprecated("JSONValue was renamed. Use DiFfRG::ConfigTree instead.")]] = ConfigTree;
} // namespace DiFfRG