1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #ifndef V8_CHAR_PREDICATES_INL_H_ 29 #define V8_CHAR_PREDICATES_INL_H_ 30 31 #include "char-predicates.h" 32 33 namespace v8 { 34 namespace internal { 35 36 37 inline bool IsCarriageReturn(uc32 c) { 38 return c == 0x000D; 39 } 40 41 42 inline bool IsLineFeed(uc32 c) { 43 return c == 0x000A; 44 } 45 46 47 static inline bool IsInRange(int value, int lower_limit, int higher_limit) { 48 ASSERT(lower_limit <= higher_limit); 49 return static_cast<unsigned int>(value - lower_limit) <= 50 static_cast<unsigned int>(higher_limit - lower_limit); 51 } 52 53 54 inline bool IsDecimalDigit(uc32 c) { 55 // ECMA-262, 3rd, 7.8.3 (p 16) 56 return IsInRange(c, '0', '9'); 57 } 58 59 60 inline bool IsHexDigit(uc32 c) { 61 // ECMA-262, 3rd, 7.6 (p 15) 62 return IsDecimalDigit(c) || IsInRange(c | 0x20, 'a', 'f'); 63 } 64 65 66 inline bool IsRegExpWord(uc16 c) { 67 return IsInRange(c | 0x20, 'a', 'z') 68 || IsDecimalDigit(c) 69 || (c == '_'); 70 } 71 72 73 inline bool IsRegExpNewline(uc16 c) { 74 switch (c) { 75 // CR LF LS PS 76 case 0x000A: case 0x000D: case 0x2028: case 0x2029: 77 return false; 78 default: 79 return true; 80 } 81 } 82 83 84 } } // namespace v8::internal 85 86 #endif // V8_CHAR_PREDICATES_INL_H_ 87