Parser.hpp

Go to the documentation of this file.

#pragma once
 
#include <argon/Option.hpp>
#include <argon/Position.hpp>
 
#include <cstdint>
#include <memory>
#include <sstream>
#include <string_view>
 
namespace argon {
 
 
enum Action : std::uint8_t {
    PRINT, 
    USAGE 
};
 
class ARGON_EXPORT Parser {
    [[nodiscard]] auto make_usage(const std::string& help) const -> std::string;
 
    std::string m_program_name;
 
    std::vector<std::string_view> m_args;
    std::vector<std::shared_ptr<Option>> m_options;
    std::vector<Position> m_positions;
 
public:
    Parser(int argc, const char* const argv[]);
    void add_option(const std::string& flags, const std::string& description, Action action, const std::string& output);
    void add_option(const std::string& flags, const std::string& description, bool& found);
 
    template <typename T>
    void add_option(const std::string& flags, const std::string& description, T& value);
 
    void add_position(const std::string& name, const std::string& description);
    void parse();
 
    [[nodiscard]] auto get_position(size_t index) const -> std::string_view;
    [[nodiscard]] auto args() const -> std::vector<std::string_view>;
};
 
template <typename T>
void Parser::add_option(const std::string& flags, const std::string& description, T& value)
{
    m_options.push_back(std::make_unique<ValueOption>(
        flags, description, [&value](std::string_view s) { std::istringstream(std::string(s)) >> value; }));
}
 
}