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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 // 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 |
| 145 // operation (upper to lower, etc). |
| 146 static inline uint16_t ConvertNonLatin1ToLatin1(uint16_t); |
144 }; | 147 }; |
145 | 148 |
146 class Utf8 { | 149 class Utf8 { |
147 public: | 150 public: |
148 static inline uchar Length(uchar chr, int previous); | 151 static inline uchar Length(uchar chr, int previous); |
149 static inline unsigned Encode( | 152 static inline unsigned Encode( |
150 char* out, uchar c, int previous); | 153 char* out, uchar c, int previous); |
151 static uchar CalculateValue(const byte* str, | 154 static uchar CalculateValue(const byte* str, |
152 unsigned length, | 155 unsigned length, |
153 unsigned* cursor); | 156 unsigned* cursor); |
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265 static const int kMaxWidth = 1; | 268 static const int kMaxWidth = 1; |
266 static int Convert(uchar c, | 269 static int Convert(uchar c, |
267 uchar n, | 270 uchar n, |
268 uchar* result, | 271 uchar* result, |
269 bool* allow_caching_ptr); | 272 bool* allow_caching_ptr); |
270 }; | 273 }; |
271 | 274 |
272 } // namespace unibrow | 275 } // namespace unibrow |
273 | 276 |
274 #endif // V8_UNICODE_H_ | 277 #endif // V8_UNICODE_H_ |
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