| /* |
| * 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. |
| */ |
| |
| #include "Regex.h" |
| |
| namespace android { |
| namespace vintf { |
| namespace details { |
| |
| Regex::~Regex() { |
| clear(); |
| } |
| |
| void Regex::clear() { |
| if (mImpl != nullptr) { |
| regfree(mImpl.get()); |
| mImpl = nullptr; |
| } |
| } |
| |
| bool Regex::compile(const std::string& pattern) { |
| clear(); |
| mImpl = std::make_unique<regex_t>(); |
| int status = regcomp(mImpl.get(), pattern.c_str(), REG_EXTENDED | REG_NEWLINE); |
| return status == 0; |
| } |
| |
| bool Regex::matches(const std::string& s) const { |
| regmatch_t match; |
| int status = |
| regexec(mImpl.get(), s.c_str(), 1 /* nmatch */, &match /* pmatch */, 0 /* flags */); |
| return status == 0 && match.rm_so == 0 && match.rm_eo >= 0 && |
| static_cast<size_t>(match.rm_eo) == s.length(); |
| } |
| |
| } // namespace details |
| } // namespace vintf |
| } // namespace android |