1 /* 2 * Copyright (C) 2016 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 OTAPREOPT_FILE_PARSING_H_ 18 #define OTAPREOPT_FILE_PARSING_H_ 19 20 #include <fstream> 21 #include <functional> 22 #include <string> 23 24 namespace android { 25 namespace installd { 26 27 bool ParseFile(const std::string& strFile, std::function<bool (const std::string&)> parse) { 28 std::ifstream input_stream(strFile); 29 30 if (!input_stream.is_open()) { 31 return false; 32 } 33 34 while (!input_stream.eof()) { 35 // Read the next line. 36 std::string line; 37 getline(input_stream, line); 38 39 // Is the line empty? Simplifies the next check. 40 if (line.empty()) { 41 continue; 42 } 43 44 // Is this a comment (starts with pound)? 45 if (line[0] == '#') { 46 continue; 47 } 48 49 if (!parse(line)) { 50 return false; 51 } 52 } 53 54 return true; 55 } 56 57 } // namespace installd 58 } // namespace android 59 60 #endif // OTAPREOPT_FILE_PARSING_H_ 61
