1 /* 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. 3 * Copyright (C) 2010 Google Inc. All Rights Reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef CSSPreloadScanner_h 28 #define CSSPreloadScanner_h 29 30 #include "PlatformString.h" 31 #include <wtf/Vector.h> 32 33 namespace WebCore { 34 35 class Document; 36 class HTMLToken; 37 38 class CSSPreloadScanner { 39 WTF_MAKE_NONCOPYABLE(CSSPreloadScanner); 40 public: 41 CSSPreloadScanner(Document*); 42 43 void reset(); 44 void scan(const HTMLToken&, bool scanningBody); 45 46 private: 47 enum State { 48 Initial, 49 MaybeComment, 50 Comment, 51 MaybeCommentEnd, 52 RuleStart, 53 Rule, 54 AfterRule, 55 RuleValue, 56 AfterRuleValue, 57 DoneParsingImportRules, 58 }; 59 60 inline void tokenize(UChar c); 61 void emitRule(); 62 63 State m_state; 64 Vector<UChar, 16> m_rule; 65 Vector<UChar> m_ruleValue; 66 67 bool m_scanningBody; 68 Document* m_document; 69 }; 70 71 } 72 73 #endif 74