| // Copyright 2015 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "settingsd/identifier_utils.h" |
| |
| namespace settingsd { |
| |
| namespace utils { |
| |
| bool IsKey(const std::string& prefix) { |
| if (prefix.size() == 0u) |
| return false; |
| return prefix[prefix.size() - 1] != '.'; |
| } |
| |
| std::string GetParentPrefix(const std::string& prefix) { |
| if (prefix.size() < 2u) |
| return std::string(); |
| size_t position = |
| prefix.find_last_of(".", prefix.size() - (IsKey(prefix) ? 1 : 2)); |
| if (position == std::string::npos) |
| return std::string(); |
| return prefix.substr(0u, position + 1u); |
| } |
| |
| } // namespace utils |
| |
| } // namespace settingsd |
