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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 AAPT_FLAGS_H
#define AAPT_FLAGS_H
#include "util/Maybe.h"
#include "util/StringPiece.h"
#include <functional>
#include <ostream>
#include <string>
#include <vector>
namespace aapt {
class Flags {
public:
Flags& requiredFlag(const StringPiece& name, const StringPiece& description,
std::string* value);
Flags& requiredFlagList(const StringPiece& name, const StringPiece& description,
std::vector<std::string>* value);
Flags& optionalFlag(const StringPiece& name, const StringPiece& description,
Maybe<std::string>* value);
Flags& optionalFlagList(const StringPiece& name, const StringPiece& description,
std::vector<std::string>* value);
Flags& optionalSwitch(const StringPiece& name, const StringPiece& description,
bool* value);
void usage(const StringPiece& command, std::ostream* out);
bool parse(const StringPiece& command, const std::vector<StringPiece>& args,
std::ostream* outError);
const std::vector<std::string>& getArgs();
private:
struct Flag {
std::string name;
std::string description;
std::function<bool(const StringPiece& value)> action;
bool required;
size_t numArgs;
bool parsed;
};
std::vector<Flag> mFlags;
std::vector<std::string> mArgs;
};
} // namespace aapt
#endif // AAPT_FLAGS_H
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