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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/guid.h" | |
| 6 | |
| 7 #include "base/strings/string_util.h" | |
| 8 | |
| 9 namespace base { | |
| 10 | |
| 11 bool IsValidGUID(const std::string& guid) { | |
| 12 const size_t kGUIDLength = 36U; | |
| 13 if (guid.length() != kGUIDLength) | |
| 14 return false; | |
| 15 | |
| 16 for (size_t i = 0; i < guid.length(); ++i) { | |
| 17 char current = guid[i]; | |
| 18 if (i == 8 || i == 13 || i == 18 || i == 23) { | |
| 19 if (current != '-') | |
| 20 return false; | |
| 21 } else { | |
| 22 if (!IsHexDigit(current)) | |
| 23 return false; | |
| 24 } | |
| 25 } | |
| 26 | |
| 27 return true; | |
| 28 } | |
| 29 | |
| 30 } // namespace base | |
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