src/char-predicates.h
説明を見る。
00001 // Copyright 2006-2008 the V8 project authors. All rights reserved. 00002 // Redistribution and use in source and binary forms, with or without 00003 // modification, are permitted provided that the following conditions are 00004 // met: 00005 // 00006 // * Redistributions of source code must retain the above copyright 00007 // notice, this list of conditions and the following disclaimer. 00008 // * Redistributions in binary form must reproduce the above 00009 // copyright notice, this list of conditions and the following 00010 // disclaimer in the documentation and/or other materials provided 00011 // with the distribution. 00012 // * Neither the name of Google Inc. nor the names of its 00013 // contributors may be used to endorse or promote products derived 00014 // from this software without specific prior written permission. 00015 // 00016 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00017 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00018 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00019 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00020 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00021 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00022 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00023 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00024 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00026 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 00028 #ifndef V8_CHAR_PREDICATES_H_ 00029 #define V8_CHAR_PREDICATES_H_ 00030 00031 namespace v8 { namespace internal { 00032 00033 // Unicode character predicates as defined by ECMA-262, 3rd, 00034 // used for lexical analysis. 00035 00036 inline bool IsCarriageReturn(uc32 c); 00037 inline bool IsLineFeed(uc32 c); 00038 inline bool IsDecimalDigit(uc32 c); 00039 inline bool IsHexDigit(uc32 c); 00040 00041 struct IdentifierStart { 00042 static inline bool Is(uc32 c) { 00043 switch (c) { 00044 case '$': case '_': case '\\': return true; 00045 default: return unibrow::Letter::Is(c); 00046 } 00047 } 00048 }; 00049 00050 00051 struct IdentifierPart { 00052 static inline bool Is(uc32 c) { 00053 return IdentifierStart::Is(c) 00054 || unibrow::Number::Is(c) 00055 || unibrow::CombiningMark::Is(c) 00056 || unibrow::ConnectorPunctuation::Is(c); 00057 } 00058 }; 00059 00060 } } // namespace v8::internal 00061 00062 #endif // V8_CHAR_PREDICATES_H_
