1*70a7ec85SAndroid Build Coastguard Worker /* 2*70a7ec85SAndroid Build Coastguard Worker * Copyright (C) 2018 The Android Open Source Project 3*70a7ec85SAndroid Build Coastguard Worker * 4*70a7ec85SAndroid Build Coastguard Worker * Licensed under the Apache License, Version 2.0 (the "License"); 5*70a7ec85SAndroid Build Coastguard Worker * you may not use this file except in compliance with the License. 6*70a7ec85SAndroid Build Coastguard Worker * You may obtain a copy of the License at 7*70a7ec85SAndroid Build Coastguard Worker * 8*70a7ec85SAndroid Build Coastguard Worker * http://www.apache.org/licenses/LICENSE-2.0 9*70a7ec85SAndroid Build Coastguard Worker * 10*70a7ec85SAndroid Build Coastguard Worker * Unless required by applicable law or agreed to in writing, software 11*70a7ec85SAndroid Build Coastguard Worker * distributed under the License is distributed on an "AS IS" BASIS, 12*70a7ec85SAndroid Build Coastguard Worker * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13*70a7ec85SAndroid Build Coastguard Worker * See the License for the specific language governing permissions and 14*70a7ec85SAndroid Build Coastguard Worker * limitations under the License. 15*70a7ec85SAndroid Build Coastguard Worker */ 16*70a7ec85SAndroid Build Coastguard Worker 17*70a7ec85SAndroid Build Coastguard Worker #ifndef ANDROID_VINTF_REGEX_H_ 18*70a7ec85SAndroid Build Coastguard Worker #define ANDROID_VINTF_REGEX_H_ 19*70a7ec85SAndroid Build Coastguard Worker 20*70a7ec85SAndroid Build Coastguard Worker #include <regex.h> 21*70a7ec85SAndroid Build Coastguard Worker #include <string> 22*70a7ec85SAndroid Build Coastguard Worker 23*70a7ec85SAndroid Build Coastguard Worker namespace android { 24*70a7ec85SAndroid Build Coastguard Worker namespace vintf { 25*70a7ec85SAndroid Build Coastguard Worker namespace details { 26*70a7ec85SAndroid Build Coastguard Worker 27*70a7ec85SAndroid Build Coastguard Worker // A wrapper class around regex.h. This is used instead of C++ <regex> library because 28*70a7ec85SAndroid Build Coastguard Worker // C++ regex library throws exceptions when an invalid regular expression is compiled. 29*70a7ec85SAndroid Build Coastguard Worker // Use Extended Regular Expression (ERE) syntax. 30*70a7ec85SAndroid Build Coastguard Worker class Regex { 31*70a7ec85SAndroid Build Coastguard Worker public: 32*70a7ec85SAndroid Build Coastguard Worker Regex() = default; 33*70a7ec85SAndroid Build Coastguard Worker ~Regex(); 34*70a7ec85SAndroid Build Coastguard Worker 35*70a7ec85SAndroid Build Coastguard Worker Regex& operator=(const Regex&) = delete; 36*70a7ec85SAndroid Build Coastguard Worker Regex(const Regex&) = delete; 37*70a7ec85SAndroid Build Coastguard Worker 38*70a7ec85SAndroid Build Coastguard Worker __attribute__((warn_unused_result)) bool compile(const std::string& pattern); 39*70a7ec85SAndroid Build Coastguard Worker 40*70a7ec85SAndroid Build Coastguard Worker bool matches(const std::string& s) const; 41*70a7ec85SAndroid Build Coastguard Worker 42*70a7ec85SAndroid Build Coastguard Worker /** 43*70a7ec85SAndroid Build Coastguard Worker * Return nullptr if not a valid regex pattern, else the Regex object. 44*70a7ec85SAndroid Build Coastguard Worker */ 45*70a7ec85SAndroid Build Coastguard Worker static const Regex* Get(const std::string& pattern); 46*70a7ec85SAndroid Build Coastguard Worker 47*70a7ec85SAndroid Build Coastguard Worker private: 48*70a7ec85SAndroid Build Coastguard Worker std::unique_ptr<regex_t> mImpl; 49*70a7ec85SAndroid Build Coastguard Worker 50*70a7ec85SAndroid Build Coastguard Worker void clear(); 51*70a7ec85SAndroid Build Coastguard Worker }; 52*70a7ec85SAndroid Build Coastguard Worker 53*70a7ec85SAndroid Build Coastguard Worker } // namespace details 54*70a7ec85SAndroid Build Coastguard Worker } // namespace vintf 55*70a7ec85SAndroid Build Coastguard Worker } // namespace android 56*70a7ec85SAndroid Build Coastguard Worker 57*70a7ec85SAndroid Build Coastguard Worker #endif // ANDROID_VINTF_REGEX_H_ 58