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| 1 /* | |
| 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef HTMLEntitySearch_h | |
| 27 #define HTMLEntitySearch_h | |
| 28 | |
| 29 #include "wtf/text/WTFString.h" | |
| 30 | |
| 31 namespace blink { | |
| 32 | |
| 33 struct HTMLEntityTableEntry; | |
| 34 | |
| 35 class HTMLEntitySearch { | |
| 36 public: | |
| 37 HTMLEntitySearch(); | |
| 38 | |
| 39 void advance(UChar); | |
| 40 | |
| 41 bool isEntityPrefix() const { return !!m_first; } | |
| 42 int currentLength() const { return m_currentLength; } | |
| 43 | |
| 44 const HTMLEntityTableEntry* mostRecentMatch() const { return m_mostRecentMat
ch; } | |
| 45 | |
| 46 private: | |
| 47 enum CompareResult { | |
| 48 Before, | |
| 49 Prefix, | |
| 50 After, | |
| 51 }; | |
| 52 | |
| 53 CompareResult compare(const HTMLEntityTableEntry*, UChar) const; | |
| 54 const HTMLEntityTableEntry* findFirst(UChar) const; | |
| 55 const HTMLEntityTableEntry* findLast(UChar) const; | |
| 56 | |
| 57 void fail() | |
| 58 { | |
| 59 m_first = 0; | |
| 60 m_last = 0; | |
| 61 } | |
| 62 | |
| 63 int m_currentLength; | |
| 64 | |
| 65 const HTMLEntityTableEntry* m_mostRecentMatch; | |
| 66 const HTMLEntityTableEntry* m_first; | |
| 67 const HTMLEntityTableEntry* m_last; | |
| 68 }; | |
| 69 | |
| 70 } | |
| 71 | |
| 72 #endif | |
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