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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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 part of dart_utf; | |
6 | |
7 const int _UTF8_ONE_BYTE_MAX = 0x7f; | 5 const int _UTF8_ONE_BYTE_MAX = 0x7f; |
8 const int _UTF8_TWO_BYTE_MAX = 0x7ff; | 6 const int _UTF8_TWO_BYTE_MAX = 0x7ff; |
9 const int _UTF8_THREE_BYTE_MAX = 0xffff; | 7 const int _UTF8_THREE_BYTE_MAX = 0xffff; |
10 | 8 |
11 const int _UTF8_LO_SIX_BIT_MASK = 0x3f; | 9 const int _UTF8_LO_SIX_BIT_MASK = 0x3f; |
12 | 10 |
13 const int _UTF8_FIRST_BYTE_OF_TWO_BASE = 0xc0; | 11 const int _UTF8_FIRST_BYTE_OF_TWO_BASE = 0xc0; |
14 const int _UTF8_FIRST_BYTE_OF_THREE_BASE = 0xe0; | 12 const int _UTF8_FIRST_BYTE_OF_THREE_BASE = 0xe0; |
15 const int _UTF8_FIRST_BYTE_OF_FOUR_BASE = 0xf0; | 13 const int _UTF8_FIRST_BYTE_OF_FOUR_BASE = 0xf0; |
16 const int _UTF8_FIRST_BYTE_OF_FIVE_BASE = 0xf8; | 14 const int _UTF8_FIRST_BYTE_OF_FIVE_BASE = 0xf8; |
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253 if (validSequence && nonOverlong && inRange) { | 251 if (validSequence && nonOverlong && inRange) { |
254 return value; | 252 return value; |
255 } else if (replacementCodepoint != null) { | 253 } else if (replacementCodepoint != null) { |
256 return replacementCodepoint; | 254 return replacementCodepoint; |
257 } else { | 255 } else { |
258 throw new ArgumentError( | 256 throw new ArgumentError( |
259 "Invalid UTF8 at ${utf8EncodedBytesIterator.position - j}"); | 257 "Invalid UTF8 at ${utf8EncodedBytesIterator.position - j}"); |
260 } | 258 } |
261 } | 259 } |
262 } | 260 } |
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