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Side by Side Diff: runtime/vm/unicode.h

Issue 744853003: Integrate the Irregexp Regular Expression Engine. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: fix clang and win build Created 6 years ago
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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 #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
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147 } 147 }
148 148
149 // Decodes a surrogate pair into a supplementary code point. 149 // Decodes a surrogate pair into a supplementary code point.
150 static int32_t Decode(int32_t lead, int32_t trail) { 150 static int32_t Decode(int32_t lead, int32_t trail) {
151 return 0x10000 + ((lead & 0x3FF) << 10) + (trail & 0x3FF); 151 return 0x10000 + ((lead & 0x3FF) << 10) + (trail & 0x3FF);
152 } 152 }
153 153
154 // Encodes a single code point. 154 // Encodes a single code point.
155 static void Encode(int32_t codepoint, uint16_t* dst); 155 static void Encode(int32_t codepoint, uint16_t* dst);
156 156
157 private:
158 static const int32_t kMaxCodeUnit = 0xFFFF; 157 static const int32_t kMaxCodeUnit = 0xFFFF;
159 158
159 private:
160 static const int32_t kLeadSurrogateOffset = (0xD800 - (0x10000 >> 10)); 160 static const int32_t kLeadSurrogateOffset = (0xD800 - (0x10000 >> 10));
161 161
162 static const int32_t kSurrogateOffset = (0x10000 - (0xD800 << 10) - 0xDC00); 162 static const int32_t kSurrogateOffset = (0x10000 - (0xD800 << 10) - 0xDC00);
163 }; 163 };
164 164
165 165
166 class CaseMapping : AllStatic { 166 class CaseMapping : AllStatic {
167 public: 167 public:
168 // Maps a code point to uppercase. 168 // Maps a code point to uppercase.
169 static int32_t ToUpper(int32_t code_point) { 169 static int32_t ToUpper(int32_t code_point) {
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222 // Data for small code points with one mapping 222 // Data for small code points with one mapping
223 static const int16_t stage2_[]; 223 static const int16_t stage2_[];
224 224
225 // Data for large code points or code points with both mappings. 225 // Data for large code points or code points with both mappings.
226 static const int32_t stage2_exception_[][2]; 226 static const int32_t stage2_exception_[][2];
227 }; 227 };
228 228
229 } // namespace dart 229 } // namespace dart
230 230
231 #endif // VM_UNICODE_H_ 231 #endif // VM_UNICODE_H_
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