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

/*
 * Copyright (C) 2010 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 APPLE 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 APPLE 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 HTMLEntityTable_h
#define HTMLEntityTable_h

#include "wtf/Allocator.h"
#include "wtf/text/WTFString.h"

namespace blink {

// Member order to optimize packing. There will be thousands of these objects.
struct HTMLEntityTableEntry {
    DISALLOW_NEW();
    LChar lastCharacter() const;

    UChar32 firstValue;
    UChar secondValue; // UChar since double char sequences only use BMP chars.
    short entityOffset;
    short length;
};

class HTMLEntityTable {
    STATIC_ONLY(HTMLEntityTable);
public:
    static const HTMLEntityTableEntry* firstEntry();
    static const HTMLEntityTableEntry* lastEntry();

    static const HTMLEntityTableEntry* firstEntryStartingWith(UChar);
    static const HTMLEntityTableEntry* lastEntryStartingWith(UChar);

    static const LChar* entityString(const HTMLEntityTableEntry&);
};

} // namespace blink

#endif