| /* |
| * Copyright (C) 2020 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 "linkerconfig/stringutil.h" |
| |
| #include <set> |
| #include <sstream> |
| #include <vector> |
| |
| #include <android-base/strings.h> |
| |
| namespace android { |
| namespace linkerconfig { |
| namespace modules { |
| std::string TrimPrefix(const std::string& s, const std::string& prefix) { |
| if (android::base::StartsWith(s, prefix)) { |
| return s.substr(prefix.size()); |
| } |
| return s; |
| } |
| |
| // merge a list of libs into a single value (concat with ":") |
| std::string MergeLibs(const std::vector<std::string>& libs) { |
| std::set<std::string> seen; |
| std::ostringstream oss; |
| for (const auto& part : libs) { |
| std::istringstream iss(part); |
| std::string lib; |
| while (std::getline(iss, lib, ':')) { |
| if (!lib.empty() && seen.insert(lib).second) { // for a new lib |
| if (oss.tellp() > 0) { |
| oss << ':'; |
| } |
| oss << lib; |
| } |
| } |
| } |
| return oss.str(); |
| } |
| } // namespace modules |
| } // namespace linkerconfig |
| } // namespace android |