/* * Copyright (C) 2013 Google, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef HTMLIdentifier_h #define HTMLIdentifier_h #if ENABLE(THREADED_HTML_PARSER) #include <wtf/text/WTFString.h> namespace WebCore { class QualifiedName; enum CharacterWidth { Likely8Bit, Force8Bit, Force16Bit }; class HTMLIdentifier { public: HTMLIdentifier() : m_index(0) { } template<size_t inlineCapacity> HTMLIdentifier(const Vector<UChar, inlineCapacity>& vector, CharacterWidth width) : m_index(findIndex(vector.data(), vector.size())) { if (m_index != invalidIndex) return; if (width == Likely8Bit) m_string = StringImpl::create8BitIfPossible(vector); else if (width == Force8Bit) m_string = String::make8BitFrom16BitSource(vector); else m_string = String(vector); } // asString should only be used on the main thread. const String& asString() const; // asStringImpl() is safe to call from any thread. const StringImpl* asStringImpl() const; static void init(); bool isSafeToSendToAnotherThread() const { return m_string.isSafeToSendToAnotherThread(); } #ifndef NDEBUG static bool hasIndex(const StringImpl*); #endif private: static const unsigned invalidIndex = -1; static unsigned maxNameLength; static unsigned findIndex(const UChar* characters, unsigned length); static void addNames(QualifiedName** names, unsigned namesCount, unsigned indexOffset); // FIXME: This could be a union. unsigned m_index; String m_string; }; } #endif // ENABLE(THREADED_HTML_PARSER) #endif