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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __SUPPORT_H__
#define __SUPPORT_H__
#include <string>
#include <iostream>
#include <memory>
class Cmdline
{
public:
Cmdline() = delete;
Cmdline(int argc, const char *const *argv) : _argc(static_cast<unsigned int>(argc)), _argv{argv}
{
// DO NOTHING
}
std::string get(unsigned int index) const;
std::string get_or(unsigned int index, const std::string &) const;
private:
unsigned int _argc;
const char *const *_argv;
};
class UI
{
public:
std::istream *in() const { return _in ? _in.get() : &std::cin; }
std::ostream *out() const { return _out ? _out.get() : &std::cout; }
public:
void in(std::unique_ptr<std::istream> &&in) { _in = std::move(in); }
void out(std::unique_ptr<std::ostream> &&out) { _out = std::move(out); }
private:
std::unique_ptr<std::istream> _in;
std::unique_ptr<std::ostream> _out;
};
std::unique_ptr<UI> make_ui(const Cmdline &cmdargs);
#endif // __SUPPORT_H__
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