Andreas Gampe | 1842af3 | 2016-03-16 14:28:50 -0700 | [diff] [blame] | 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_ |