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/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
* 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 HTMLEntityParser_h
#define HTMLEntityParser_h
#include "core/CoreExport.h"
#include "platform/text/SegmentedString.h"
#include "wtf/Allocator.h"
namespace blink {
class DecodedHTMLEntity {
STACK_ALLOCATED();
private:
// HTML entities contain at most four UTF-16 code units.
static const unsigned kMaxLength = 4;
public:
DecodedHTMLEntity() : length(0) { }
bool isEmpty() const { return !length; }
void append(UChar c)
{
RELEASE_ASSERT(length < kMaxLength);
data[length++] = c;
}
void append(UChar32 c)
{
if (U_IS_BMP(c)) {
append(static_cast<UChar>(c));
return;
}
append(U16_LEAD(c));
append(U16_TRAIL(c));
}
unsigned length;
UChar data[kMaxLength];
};
CORE_EXPORT bool consumeHTMLEntity(SegmentedString&, DecodedHTMLEntity& decodedEntity, bool& notEnoughCharacters, UChar additionalAllowedCharacter = '\0');
// Used by the XML parser. Not suitable for use in HTML parsing. Use consumeHTMLEntity instead.
size_t decodeNamedEntityToUCharArray(const char*, UChar result[4]);
} // namespace blink
#endif