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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 library characters; | 5 library characters; |
| 6 | 6 |
| 7 const int $EOF = 0; | 7 const int $EOF = 0; |
| 8 const int $STX = 2; | 8 const int $STX = 2; |
| 9 const int $BS = 8; | 9 const int $BS = 8; |
| 10 const int $TAB = 9; | 10 const int $TAB = 9; |
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| 134 (value > $LAST_SURROGATE && value <= $LAST_CODE_POINT); | 134 (value > $LAST_SURROGATE && value <= $LAST_CODE_POINT); |
| 135 } | 135 } |
| 136 | 136 |
| 137 bool isUtf16LeadSurrogate(int value) { | 137 bool isUtf16LeadSurrogate(int value) { |
| 138 return value >= 0xd800 && value <= 0xdbff; | 138 return value >= 0xd800 && value <= 0xdbff; |
| 139 } | 139 } |
| 140 | 140 |
| 141 bool isUtf16TrailSurrogate(int value) { | 141 bool isUtf16TrailSurrogate(int value) { |
| 142 return value >= 0xdc00 && value <= 0xdfff; | 142 return value >= 0xdc00 && value <= 0xdfff; |
| 143 } | 143 } |
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