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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 #ifndef VM_UNICODE_H_ | 5 #ifndef VM_UNICODE_H_ |
6 #define VM_UNICODE_H_ | 6 #define VM_UNICODE_H_ |
7 | 7 |
8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
9 #include "vm/globals.h" | 9 #include "vm/globals.h" |
10 | 10 |
11 namespace dart { | 11 namespace dart { |
12 | 12 |
13 class String; | 13 class String; |
14 | 14 |
15 class Utf8 : AllStatic { | 15 class Utf8 : AllStatic { |
16 public: | 16 public: |
17 static const intptr_t kMaxOneByteChar = 0x7F; | 17 static const intptr_t kMaxOneByteChar = 0x7F; |
18 static const intptr_t kMaxTwoByteChar = 0x7FF; | 18 static const intptr_t kMaxTwoByteChar = 0x7FF; |
19 static const intptr_t kMaxThreeByteChar = 0xFFFF; | 19 static const intptr_t kMaxThreeByteChar = 0xFFFF; |
20 static const intptr_t kMaxFourByteChar = 0x10FFFF; | 20 static const intptr_t kMaxFourByteChar = 0x10FFFF; |
21 | 21 |
22 static intptr_t CodePointCount(const char* str, intptr_t* width); | 22 static intptr_t CodePointCount(const char* str, intptr_t* width); |
23 | 23 |
| 24 static bool IsValid(const char* src); |
| 25 |
24 static intptr_t Length(int32_t ch); | 26 static intptr_t Length(int32_t ch); |
25 static intptr_t Length(const String& str); | 27 static intptr_t Length(const String& str); |
26 | 28 |
27 static intptr_t Encode(int32_t ch, char* dst); | 29 static intptr_t Encode(int32_t ch, char* dst); |
28 static intptr_t Encode(const String& src, char* dst, intptr_t len); | 30 static intptr_t Encode(const String& src, char* dst, intptr_t len); |
29 | 31 |
30 static intptr_t Decode(const char*, int32_t* ch); | 32 static intptr_t Decode(const char*, int32_t* ch); |
31 static bool Decode(const char* src, uint8_t* dst, intptr_t len); | 33 static bool Decode(const char* src, uint8_t* dst, intptr_t len); |
32 static bool Decode(const char* src, uint16_t* dst, intptr_t len); | 34 static bool Decode(const char* src, uint16_t* dst, intptr_t len); |
33 static bool Decode(const char* src, uint32_t* dst, intptr_t len); | 35 static bool Decode(const char* src, uint32_t* dst, intptr_t len); |
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93 // Data for small code points with one mapping | 95 // Data for small code points with one mapping |
94 static const int16_t stage2_[]; | 96 static const int16_t stage2_[]; |
95 | 97 |
96 // Data for large code points or code points with both mappings. | 98 // Data for large code points or code points with both mappings. |
97 static const int32_t stage2_exception_[][2]; | 99 static const int32_t stage2_exception_[][2]; |
98 }; | 100 }; |
99 | 101 |
100 } // namespace dart | 102 } // namespace dart |
101 | 103 |
102 #endif // VM_UNICODE_H_ | 104 #endif // VM_UNICODE_H_ |
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