| /* |
| * Copyright (C) 2018 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 ANDROID_VINTF_REGEX_H_ |
| #define ANDROID_VINTF_REGEX_H_ |
| |
| #include <regex.h> |
| #include <string> |
| |
| namespace android { |
| namespace vintf { |
| namespace details { |
| |
| // A wrapper class around regex.h. This is used instead of C++ <regex> library because |
| // C++ regex library throws exceptions when an invalid regular expression is compiled. |
| // Use Extended Regular Expression (ERE) syntax. |
| class Regex { |
| public: |
| Regex() = default; |
| ~Regex(); |
| |
| Regex& operator=(const Regex&) = delete; |
| Regex(const Regex&) = delete; |
| |
| __attribute__((warn_unused_result)) bool compile(const std::string& pattern); |
| |
| bool matches(const std::string& s) const; |
| |
| /** |
| * Return nullptr if not a valid regex pattern, else the Regex object. |
| */ |
| static const Regex* Get(const std::string& pattern); |
| |
| private: |
| std::unique_ptr<regex_t> mImpl; |
| |
| void clear(); |
| }; |
| |
| } // namespace details |
| } // namespace vintf |
| } // namespace android |
| |
| #endif // ANDROID_VINTF_REGEX_H_ |