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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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133 } | 133 } |
134 }; | 134 }; |
135 | 135 |
136 class Latin1 { | 136 class Latin1 { |
137 public: | 137 public: |
138 #ifndef ENABLE_LATIN_1 | 138 #ifndef ENABLE_LATIN_1 |
139 static const unsigned kMaxChar = 0x7f; | 139 static const unsigned kMaxChar = 0x7f; |
140 #else | 140 #else |
141 static const unsigned kMaxChar = 0xff; | 141 static const unsigned kMaxChar = 0xff; |
142 #endif | 142 #endif |
| 143 static inline bool NonLatin1CanBeConvertedToLatin1(uint16_t); |
143 }; | 144 }; |
144 | 145 |
145 class Utf8 { | 146 class Utf8 { |
146 public: | 147 public: |
147 static inline uchar Length(uchar chr, int previous); | 148 static inline uchar Length(uchar chr, int previous); |
148 static inline unsigned Encode( | 149 static inline unsigned Encode( |
149 char* out, uchar c, int previous); | 150 char* out, uchar c, int previous); |
150 static uchar CalculateValue(const byte* str, | 151 static uchar CalculateValue(const byte* str, |
151 unsigned length, | 152 unsigned length, |
152 unsigned* cursor); | 153 unsigned* cursor); |
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264 static const int kMaxWidth = 1; | 265 static const int kMaxWidth = 1; |
265 static int Convert(uchar c, | 266 static int Convert(uchar c, |
266 uchar n, | 267 uchar n, |
267 uchar* result, | 268 uchar* result, |
268 bool* allow_caching_ptr); | 269 bool* allow_caching_ptr); |
269 }; | 270 }; |
270 | 271 |
271 } // namespace unibrow | 272 } // namespace unibrow |
272 | 273 |
273 #endif // V8_UNICODE_H_ | 274 #endif // V8_UNICODE_H_ |
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