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      1 /*
      2  * Copyright (C) 2013 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 GOOGLE 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 GOOGLE 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 CompactHTMLToken_h
     27 #define CompactHTMLToken_h
     28 
     29 #include "core/html/parser/HTMLIdentifier.h"
     30 #include "core/html/parser/HTMLToken.h"
     31 #include "wtf/Vector.h"
     32 #include "wtf/text/TextPosition.h"
     33 #include "wtf/text/WTFString.h"
     34 
     35 namespace WebCore {
     36 
     37 class QualifiedName;
     38 
     39 class CompactHTMLToken {
     40 public:
     41     struct Attribute {
     42         Attribute(const HTMLIdentifier& name, const String& value)
     43             : name(name)
     44             , value(value)
     45         {
     46         }
     47 
     48         HTMLIdentifier name;
     49         String value;
     50     };
     51 
     52     CompactHTMLToken(const HTMLToken*, const TextPosition&);
     53 
     54     bool isSafeToSendToAnotherThread() const;
     55 
     56     HTMLToken::Type type() const { return static_cast<HTMLToken::Type>(m_type); }
     57     const HTMLIdentifier& data() const { return m_data; }
     58     bool selfClosing() const { return m_selfClosing; }
     59     bool isAll8BitData() const { return m_isAll8BitData; }
     60     const Vector<Attribute>& attributes() const { return m_attributes; }
     61     const Attribute* getAttributeItem(const QualifiedName&) const;
     62     const TextPosition& textPosition() const { return m_textPosition; }
     63 
     64     // There is only 1 DOCTYPE token per document, so to avoid increasing the
     65     // size of CompactHTMLToken, we just use the m_attributes vector.
     66     const HTMLIdentifier& publicIdentifier() const { return m_attributes[0].name; }
     67     const String& systemIdentifier() const { return m_attributes[0].value; }
     68     bool doctypeForcesQuirks() const { return m_doctypeForcesQuirks; }
     69 
     70 private:
     71     unsigned m_type : 4;
     72     unsigned m_selfClosing : 1;
     73     unsigned m_isAll8BitData : 1;
     74     unsigned m_doctypeForcesQuirks: 1;
     75 
     76     HTMLIdentifier m_data; // "name", "characters", or "data" depending on m_type
     77     Vector<Attribute> m_attributes;
     78     TextPosition m_textPosition;
     79 };
     80 
     81 typedef Vector<CompactHTMLToken> CompactHTMLTokenStream;
     82 
     83 }
     84 
     85 #endif
     86