| // 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 |
