13ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Copyright 2011 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#ifndef V8_CHAR_PREDICATES_INL_H_ 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define V8_CHAR_PREDICATES_INL_H_ 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "char-predicates.h" 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 379ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick// If c is in 'A'-'Z' or 'a'-'z', return its lower-case. 389ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick// Else, return something outside of 'A'-'Z' and 'a'-'z'. 399ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick// Note: it ignores LOCALE. 409ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrickinline int AsciiAlphaToLower(uc32 c) { 419ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick return c | 0x20; 429ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick} 439ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick 449ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockinline bool IsCarriageReturn(uc32 c) { 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return c == 0x000D; 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockinline bool IsLineFeed(uc32 c) { 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return c == 0x000A; 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochinline bool IsInRange(int value, int lower_limit, int higher_limit) { 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ASSERT(lower_limit <= higher_limit); 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return static_cast<unsigned int>(value - lower_limit) <= 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static_cast<unsigned int>(higher_limit - lower_limit); 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockinline bool IsDecimalDigit(uc32 c) { 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ECMA-262, 3rd, 7.8.3 (p 16) 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return IsInRange(c, '0', '9'); 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 66a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockinline bool IsHexDigit(uc32 c) { 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // ECMA-262, 3rd, 7.6 (p 15) 709ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick return IsDecimalDigit(c) || IsInRange(AsciiAlphaToLower(c), 'a', 'f'); 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockinline bool IsRegExpWord(uc16 c) { 759ac36c9faca11611ada13b4054edbaa0738661d0Iain Merrick return IsInRange(AsciiAlphaToLower(c), 'a', 'z') 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block || IsDecimalDigit(c) 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block || (c == '_'); 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockinline bool IsRegExpNewline(uc16 c) { 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block switch (c) { 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // CR LF LS PS 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block case 0x000A: case 0x000D: case 0x2028: case 0x2029: 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return false; 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block default: 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return true; 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#endif // V8_CHAR_PREDICATES_INL_H_ 95