| // Copyright (c) 2012 The Chromium 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 "base/guid.h" | |
| #include "base/strings/string_util.h" | |
| namespace base { | |
| bool IsValidGUID(const std::string& guid) { | |
| const size_t kGUIDLength = 36U; | |
| if (guid.length() != kGUIDLength) | |
| return false; | |
| for (size_t i = 0; i < guid.length(); ++i) { | |
| char current = guid[i]; | |
| if (i == 8 || i == 13 || i == 18 || i == 23) { | |
| if (current != '-') | |
| return false; | |
| } else { | |
| if (!IsHexDigit(current)) | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| } // namespace base |