/* | |
* Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. | |
* Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com> | |
* | |
* 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 COMPUTER, 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 COMPUTER, 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 TextCodec_h | |
#define TextCodec_h | |
#include <memory> | |
#include <wtf/Noncopyable.h> | |
#include <wtf/PassOwnPtr.h> | |
#include <wtf/Vector.h> | |
#include <wtf/unicode/Unicode.h> | |
#include "PlatformString.h" | |
namespace WebCore { | |
class TextEncoding; | |
// Specifies what will happen when a character is encountered that is | |
// not encodable in the character set. | |
enum UnencodableHandling { | |
// Substitutes the replacement character "?". | |
QuestionMarksForUnencodables, | |
// Encodes the character as an XML entity. For example, U+06DE | |
// would be "۞" (0x6DE = 1758 in octal). | |
EntitiesForUnencodables, | |
// Encodes the character as en entity as above, but escaped | |
// non-alphanumeric characters. This is used in URLs. | |
// For example, U+6DE would be "%26%231758%3B". | |
URLEncodedEntitiesForUnencodables, | |
}; | |
typedef char UnencodableReplacementArray[32]; | |
class TextCodec : public Noncopyable { | |
public: | |
virtual ~TextCodec(); | |
String decode(const char* str, size_t length, bool flush = false) | |
{ | |
bool ignored; | |
return decode(str, length, flush, false, ignored); | |
} | |
virtual String decode(const char*, size_t length, bool flush, bool stopOnError, bool& sawError) = 0; | |
virtual CString encode(const UChar*, size_t length, UnencodableHandling) = 0; | |
// Fills a null-terminated string representation of the given | |
// unencodable character into the given replacement buffer. | |
// The length of the string (not including the null) will be returned. | |
static int getUnencodableReplacement(unsigned codePoint, UnencodableHandling, UnencodableReplacementArray); | |
}; | |
typedef void (*EncodingNameRegistrar)(const char* alias, const char* name); | |
typedef PassOwnPtr<TextCodec> (*NewTextCodecFunction)(const TextEncoding&, const void* additionalData); | |
typedef void (*TextCodecRegistrar)(const char* name, NewTextCodecFunction, const void* additionalData); | |
} // namespace WebCore | |
#endif // TextCodec_h |