| /* |
| * Copyright (C) 2022 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" |
| |
| #include <regex> |
| |
| #include <android-base/logging.h> |
| |
| namespace simpleperf { |
| |
| RegExMatch::~RegExMatch() {} |
| |
| class RegExMatchImpl : public RegExMatch { |
| public: |
| RegExMatchImpl(std::string_view s, const std::regex& re) |
| : match_it_(s.data(), s.data() + s.size(), re) {} |
| |
| bool IsValid() const override { return match_it_ != std::cregex_iterator(); } |
| |
| std::string GetField(size_t index) const override { return match_it_->str(index); } |
| |
| void MoveToNextMatch() override { ++match_it_; } |
| |
| private: |
| std::cregex_iterator match_it_; |
| }; |
| |
| class RegExImpl : public RegEx { |
| public: |
| RegExImpl(std::string_view pattern) |
| : RegEx(pattern), re_(pattern_, std::regex::ECMAScript | std::regex::optimize) {} |
| |
| bool Match(std::string_view s) const override { |
| return std::regex_match(s.begin(), s.end(), re_); |
| } |
| bool Search(std::string_view s) const override { |
| return std::regex_search(s.begin(), s.end(), re_); |
| } |
| std::unique_ptr<RegExMatch> SearchAll(std::string_view s) const override { |
| return std::unique_ptr<RegExMatch>(new RegExMatchImpl(s, re_)); |
| } |
| std::optional<std::string> Replace(const std::string& s, |
| const std::string& format) const override { |
| try { |
| return {std::regex_replace(s, re_, format)}; |
| } catch (std::regex_error& e) { |
| LOG(ERROR) << "regex_error: " << e.what() << ", pattern " << pattern_ << ", format " |
| << format; |
| return std::nullopt; |
| } |
| } |
| |
| private: |
| std::regex re_; |
| }; |
| |
| std::unique_ptr<RegEx> RegEx::Create(std::string_view pattern) { |
| try { |
| return std::make_unique<RegExImpl>(pattern); |
| } catch (std::regex_error& e) { |
| LOG(ERROR) << "regex_error: " << e.what() << ", pattern " << pattern; |
| return nullptr; |
| } |
| } |
| |
| bool SearchInRegs(std::string_view s, const std::vector<std::unique_ptr<RegEx>>& regs) { |
| for (auto& reg : regs) { |
| if (reg->Search(s)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } // namespace simpleperf |