fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 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_H_ |
| 29 | #define V8_CHAR_PREDICATES_H_ |
| 30 | |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 31 | #include "unicode.h" |
| 32 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 33 | namespace v8 { |
| 34 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 35 | |
| 36 | // Unicode character predicates as defined by ECMA-262, 3rd, |
| 37 | // used for lexical analysis. |
| 38 | |
| 39 | inline bool IsCarriageReturn(uc32 c); |
| 40 | inline bool IsLineFeed(uc32 c); |
| 41 | inline bool IsDecimalDigit(uc32 c); |
| 42 | inline bool IsHexDigit(uc32 c); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 43 | inline bool IsOctalDigit(uc32 c); |
| 44 | inline bool IsBinaryDigit(uc32 c); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 45 | inline bool IsRegExpWord(uc32 c); |
| 46 | inline bool IsRegExpNewline(uc32 c); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 47 | |
| 48 | struct IdentifierStart { |
| 49 | static inline bool Is(uc32 c) { |
| 50 | switch (c) { |
| 51 | case '$': case '_': case '\\': return true; |
| 52 | default: return unibrow::Letter::Is(c); |
| 53 | } |
| 54 | } |
| 55 | }; |
| 56 | |
| 57 | |
| 58 | struct IdentifierPart { |
| 59 | static inline bool Is(uc32 c) { |
| 60 | return IdentifierStart::Is(c) |
| 61 | || unibrow::Number::Is(c) |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 62 | || c == 0x200C // U+200C is Zero-Width Non-Joiner. |
| 63 | || c == 0x200D // U+200D is Zero-Width Joiner. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 64 | || unibrow::CombiningMark::Is(c) |
| 65 | || unibrow::ConnectorPunctuation::Is(c); |
| 66 | } |
| 67 | }; |
| 68 | |
| 69 | } } // namespace v8::internal |
| 70 | |
| 71 | #endif // V8_CHAR_PREDICATES_H_ |