1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef AAPT_FLAGS_H 18 #define AAPT_FLAGS_H 19 20 #include <functional> 21 #include <ostream> 22 #include <string> 23 #include <unordered_set> 24 #include <vector> 25 26 #include "androidfw/StringPiece.h" 27 28 #include "util/Maybe.h" 29 30 namespace aapt { 31 32 class Flags { 33 public: 34 Flags& RequiredFlag(const android::StringPiece& name, const android::StringPiece& description, 35 std::string* value); 36 Flags& RequiredFlagList(const android::StringPiece& name, const android::StringPiece& description, 37 std::vector<std::string>* value); 38 Flags& OptionalFlag(const android::StringPiece& name, const android::StringPiece& description, 39 Maybe<std::string>* value); 40 Flags& OptionalFlagList(const android::StringPiece& name, const android::StringPiece& description, 41 std::vector<std::string>* value); 42 Flags& OptionalFlagList(const android::StringPiece& name, const android::StringPiece& description, 43 std::unordered_set<std::string>* value); 44 Flags& OptionalSwitch(const android::StringPiece& name, const android::StringPiece& description, 45 bool* value); 46 47 void Usage(const android::StringPiece& command, std::ostream* out); 48 49 bool Parse(const android::StringPiece& command, const std::vector<android::StringPiece>& args, 50 std::ostream* outError); 51 52 const std::vector<std::string>& GetArgs(); 53 54 private: 55 struct Flag { 56 std::string name; 57 std::string description; 58 std::function<bool(const android::StringPiece& value)> action; 59 bool required; 60 size_t num_args; 61 62 bool parsed; 63 }; 64 65 std::vector<Flag> flags_; 66 std::vector<std::string> args_; 67 }; 68 69 } // namespace aapt 70 71 #endif // AAPT_FLAGS_H 72