third_party/WebKit/Source/core/html/parser/CompactHTMLToken.h

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