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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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142 #endif | 142 #endif |
143 // Returns 0 if character does not convert to single latin-1 character | 143 // Returns 0 if character does not convert to single latin-1 character |
144 // or if the character doesn't not convert back to latin-1 via inverse | 144 // or if the character doesn't not convert back to latin-1 via inverse |
145 // operation (upper to lower, etc). | 145 // operation (upper to lower, etc). |
146 static inline uint16_t ConvertNonLatin1ToLatin1(uint16_t); | 146 static inline uint16_t ConvertNonLatin1ToLatin1(uint16_t); |
147 }; | 147 }; |
148 | 148 |
149 class Utf8 { | 149 class Utf8 { |
150 public: | 150 public: |
151 static inline uchar Length(uchar chr, int previous); | 151 static inline uchar Length(uchar chr, int previous); |
| 152 static inline unsigned EncodeOneByte(char* out, uint8_t c); |
152 static inline unsigned Encode( | 153 static inline unsigned Encode( |
153 char* out, uchar c, int previous); | 154 char* out, uchar c, int previous); |
154 static uchar CalculateValue(const byte* str, | 155 static uchar CalculateValue(const byte* str, |
155 unsigned length, | 156 unsigned length, |
156 unsigned* cursor); | 157 unsigned* cursor); |
157 static const uchar kBadChar = 0xFFFD; | 158 static const uchar kBadChar = 0xFFFD; |
158 static const unsigned kMaxEncodedSize = 4; | 159 static const unsigned kMaxEncodedSize = 4; |
159 static const unsigned kMaxOneByteChar = 0x7f; | 160 static const unsigned kMaxOneByteChar = 0x7f; |
160 static const unsigned kMaxTwoByteChar = 0x7ff; | 161 static const unsigned kMaxTwoByteChar = 0x7ff; |
161 static const unsigned kMaxThreeByteChar = 0xffff; | 162 static const unsigned kMaxThreeByteChar = 0xffff; |
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268 static const int kMaxWidth = 1; | 269 static const int kMaxWidth = 1; |
269 static int Convert(uchar c, | 270 static int Convert(uchar c, |
270 uchar n, | 271 uchar n, |
271 uchar* result, | 272 uchar* result, |
272 bool* allow_caching_ptr); | 273 bool* allow_caching_ptr); |
273 }; | 274 }; |
274 | 275 |
275 } // namespace unibrow | 276 } // namespace unibrow |
276 | 277 |
277 #endif // V8_UNICODE_H_ | 278 #endif // V8_UNICODE_H_ |
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