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tdlib-fork/tdutils/td/utils/OptionsParser.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/utils/common.h"
#include "td/utils/Slice.h"
#include "td/utils/Status.h"
#include "td/utils/StringBuilder.h"
#include <functional>
namespace td {
class OptionsParser {
class Option {
public:
enum class Type { NoArg, Arg, OptionalArg };
Type type;
char short_key;
std::string long_key;
std::string description;
std::function<Status(Slice)> arg_callback;
};
public:
void set_description(std::string description);
void add_option(Option::Type type, char short_key, Slice long_key, Slice description,
std::function<Status(Slice)> callback);
void add_option(char short_key, Slice long_key, Slice description, std::function<Status(Slice)> callback);
void add_option(char short_key, Slice long_key, Slice description, std::function<Status(void)> callback);
Result<int> run(int argc, char *argv[]) TD_WARN_UNUSED_RESULT;
friend StringBuilder &operator<<(StringBuilder &sb, const OptionsParser &o);
private:
std::vector<Option> options_;
std::string description_;
};
} // namespace td