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argument-parser/src/headers/conventions/base_convention.hpp

39 lines
1.3 KiB
C++

#pragma once
#include <string>
#include <utility>
#include <vector>
#ifndef BASE_CONVENTION_HPP
#define BASE_CONVENTION_HPP
namespace argument_parser::conventions {
enum class convention_features { ALLOW_SHORT_TO_LONG_FALLBACK, ALLOW_LONG_TO_SHORT_FALLBACK };
enum class argument_type { SHORT, LONG, POSITIONAL, INTERCHANGABLE, ERROR };
using parsed_argument = std::pair<argument_type, std::string>;
class base_convention {
public:
virtual std::string extract_value(std::string const &) const = 0;
virtual parsed_argument get_argument(std::string const &) const = 0;
virtual bool requires_next_token() const = 0;
virtual std::string name() const = 0;
virtual std::string short_prec() const = 0;
virtual std::string long_prec() const = 0;
virtual std::string make_help_text(std::string const &short_arg, std::string const &long_arg,
bool requires_value) const = 0;
virtual std::vector<convention_features> get_features() const = 0;
protected:
base_convention() = default;
~base_convention() = default;
};
using convention = base_convention;
} // namespace argument_parser::conventions
namespace argument_parser::conventions::helpers {
std::string to_lower(std::string s);
std::string to_upper(std::string s);
} // namespace argument_parser::conventions::helpers
#endif