ObjFW  Diff

		switch (of_string_utf8_check(UTF8String, UTF8StringLength,
		    &_s->length)) {
		case 1:
			_s->isUTF8 = true;
			break;
		case -1:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		}

		memcpy(_s->cString, UTF8String, UTF8StringLength);
		_s->cString[UTF8StringLength] = 0;
	} @catch (id e) {
		[self release];
		@throw e;

		if (encoding == OF_STRING_ENCODING_UTF_8 ||
		    encoding == OF_STRING_ENCODING_ASCII) {
			switch (of_string_utf8_check(cString, cStringLength,
			    &_s->length)) {
			case 1:
				if (encoding == OF_STRING_ENCODING_ASCII)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: [self class]];

				_s->isUTF8 = true;
				break;
			case -1:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];
			}

			memcpy(_s->cString, cString, cStringLength);
			_s->cString[cStringLength] = 0;

			return self;
		}

				_s->isUTF8 = true;
				bytes = of_string_utf8_encode(
				    (uint8_t)cString[i], buffer);

				if (bytes == 0)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: [self class]];

				_s->cStringLength += bytes - 1;
				_s->cString = [self
				    resizeMemory: _s->cString
					    size: _s->cStringLength + 1];

				memcpy(_s->cString + j, buffer, bytes);

		case OF_STRING_ENCODING_ISO_8859_15:
			table = of_iso_8859_15;
			break;
		case OF_STRING_ENCODING_WINDOWS_1252:
			table = of_windows_1252;
			break;
		default:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		}

		for (i = j = 0; i < cStringLength; i++) {
			char buffer[4];
			of_unichar_t character;
			size_t characterBytes;

			if (!(cString[i] & 0x80)) {
				_s->cString[j++] = cString[i];
				continue;
			}

			character = table[(uint8_t)cString[i]];

			if (character == 0xFFFD)
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];

			_s->isUTF8 = true;
			characterBytes = of_string_utf8_encode(character,
			    buffer);

			if (characterBytes == 0)
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];

			_s->cStringLength += characterBytes - 1;
			_s->cString = [self
			    resizeMemory: _s->cString
				    size: _s->cStringLength + 1];

			memcpy(_s->cString + j, buffer, characterBytes);

		switch (of_string_utf8_check(UTF8String, UTF8StringLength,
		    &_s->length)) {
		case 1:
			_s->isUTF8 = true;
			break;
		case -1:
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		}
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;

				_s->isUTF8 = true;

				memcpy(_s->cString + j, buffer, len);
				j += len;

				break;
			default:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];
			}
		}

		_s->cString[j] = '\0';
		_s->cStringLength = j;

		@try {

			char buffer[4];
			of_unichar_t character =
			    (swap ? OF_BSWAP16(string[i]) : string[i]);
			size_t len;

			/* Missing high surrogate */
			if ((character & 0xFC00) == 0xDC00)
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];

			if ((character & 0xFC00) == 0xD800) {
				of_char16_t nextCharacter;

				if (length <= i + 1)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: [self class]];

				nextCharacter = (swap
				    ? OF_BSWAP16(string[i + 1])
				    : string[i + 1]);

				if ((nextCharacter & 0xFC00) != 0xDC00)
					@throw [OFInvalidEncodingException
					    exceptionWithClass: [self class]];

				character = (((character & 0x3FF) << 10) |
				    (nextCharacter & 0x3FF)) + 0x10000;

				i++;
				_s->length--;
			}

				_s->isUTF8 = true;

				memcpy(_s->cString + j, buffer, len);
				j += len;

				break;
			default:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];
			}
		}

		_s->cString[j] = '\0';
		_s->cStringLength = j;

		@try {

				_s->isUTF8 = true;

				memcpy(_s->cString + j, buffer, len);
				j += len;

				break;
			default:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];
			}
		}

		_s->cString[j] = '\0';
		_s->cStringLength = j;

		@try {

	self = [super init];

	@try {
		char *tmp;
		int cStringLength;

		if (format == nil)
			@throw [OFInvalidArgumentException
			    exceptionWithClass: [self class]
				      selector: _cmd];

		_s = &_storage;

		if ((cStringLength = of_vasprintf(&tmp, [format UTF8String],
		    arguments)) == -1)
			@throw [OFInvalidFormatException
			    exceptionWithClass: [self class]];

		_s->cStringLength = cStringLength;

		@try {
			switch (of_string_utf8_check(tmp, cStringLength,
			    &_s->length)) {
			case 1:
				_s->isUTF8 = true;
				break;
			case -1:
				@throw [OFInvalidEncodingException
				    exceptionWithClass: [self class]];
			}

			_s->cString = [self
			    allocMemoryWithSize: cStringLength + 1];
			memcpy(_s->cString, tmp, cStringLength + 1);
		} @finally {
			free(tmp);

- (size_t)getCString: (char*)cString
	   maxLength: (size_t)maxLength
	    encoding: (of_string_encoding_t)encoding
{
	switch (encoding) {
	case OF_STRING_ENCODING_ASCII:
		if (_s->isUTF8)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		/* intentional fall-through */
	case OF_STRING_ENCODING_UTF_8:
		if (_s->cStringLength + 1 > maxLength)
			@throw [OFOutOfRangeException
			    exceptionWithClass: [self class]];

		memcpy(cString, _s->cString, _s->cStringLength + 1);

		return _s->cStringLength;
	default:
		return [super getCString: cString
			       maxLength: maxLength
				encoding: encoding];
	}
}

- (const char*)cStringWithEncoding: (of_string_encoding_t)encoding
{
	switch (encoding) {
	case OF_STRING_ENCODING_ASCII:
		if (_s->isUTF8)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];
		/* intentional fall-through */
	case OF_STRING_ENCODING_UTF_8:
		return _s->cString;
	default:
		return [super cStringWithEncoding: encoding];
	}
}

	size_t otherCStringLength, minimumCStringLength;
	int compare;

	if (object == self)
		return OF_ORDERED_SAME;

	if (![object isKindOfClass: [OFString class]])
		@throw [OFInvalidArgumentException
		    exceptionWithClass: [self class]
			      selector: _cmd];

	otherString = (OFString*)object;
	otherCStringLength = [otherString UTF8StringLength];
	minimumCStringLength = (_s->cStringLength > otherCStringLength
	    ? otherCStringLength : _s->cStringLength);

	if ((compare = memcmp(_s->cString, [otherString UTF8String],

	size_t i, j, otherCStringLength, minimumCStringLength;
	int compare;

	if (otherString == self)
		return OF_ORDERED_SAME;

	if (![otherString isKindOfClass: [OFString class]])
		@throw [OFInvalidArgumentException
		    exceptionWithClass: [self class]
			      selector: _cmd];

	otherCString = [otherString UTF8String];
	otherCStringLength = [otherString UTF8StringLength];

	if (!_s->isUTF8) {
		minimumCStringLength = (_s->cStringLength > otherCStringLength
		    ? otherCStringLength : _s->cStringLength);

		l1 = of_string_utf8_decode(_s->cString + i,
		    _s->cStringLength - i, &c1);
		l2 = of_string_utf8_decode(otherCString + j,
		    otherCStringLength - j, &c2);

		if (l1 == 0 || l2 == 0 || c1 > 0x10FFFF || c2 > 0x10FFFF)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		if (c1 >> 8 < OF_UNICODE_CASEFOLDING_TABLE_SIZE) {
			of_unichar_t tc =
			    of_unicode_casefolding_table[c1 >> 8][c1 & 0xFF];

			if (tc)
				c1 = tc;

	for (i = 0; i < _s->cStringLength; i++) {
		of_unichar_t c;
		size_t length;

		if ((length = of_string_utf8_decode(_s->cString + i,
		    _s->cStringLength - i, &c)) == 0)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		OF_HASH_ADD(hash, (c & 0xFF0000) >> 16);
		OF_HASH_ADD(hash, (c & 0x00FF00) >>  8);
		OF_HASH_ADD(hash,  c & 0x0000FF);

		i += length - 1;
	}

}

- (of_unichar_t)characterAtIndex: (size_t)index
{
	of_unichar_t character;

	if (index >= _s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (!_s->isUTF8)
		return _s->cString[index];

	index = of_string_utf8_get_position(_s->cString, index,
	    _s->cStringLength);

	if (!of_string_utf8_decode(_s->cString + index,
	    _s->cStringLength - index, &character))
		@throw [OFInvalidEncodingException
		    exceptionWithClass: [self class]];

	return character;
}

- (void)getCharacters: (of_unichar_t*)buffer
	      inRange: (of_range_t)range
{
	/* TODO: Could be slightly optimized */
	void *pool = objc_autoreleasePoolPush();
	const of_unichar_t *characters = [self characters];

	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > _s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	memcpy(buffer, characters + range.location,
	    range.length * sizeof(of_unichar_t));

	objc_autoreleasePoolPop(pool);
}

- (of_range_t)rangeOfString: (OFString*)string
		    options: (int)options
		      range: (of_range_t)range
{
	const char *cString = [string UTF8String];
	size_t i, cStringLength = [string UTF8StringLength];
	size_t rangeLocation, rangeLength;

	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > _s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (_s->isUTF8) {
		rangeLocation = of_string_utf8_get_position(
		    _s->cString, range.location, _s->cStringLength);
		rangeLength = of_string_utf8_get_position(
		    _s->cString + rangeLocation, range.length,
		    _s->cStringLength - rangeLocation);

- (OFString*)substringWithRange: (of_range_t)range
{
	size_t start = range.location;
	size_t end = range.location + range.length;

	if (range.length > SIZE_MAX - range.location || end > _s->length)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (_s->isUTF8) {
		start = of_string_utf8_get_position(_s->cString, start,
		    _s->cStringLength);
		end = of_string_utf8_get_position(_s->cString, end,
		    _s->cStringLength);
	}

		of_unichar_t c;
		size_t cLen;

		cLen = of_string_utf8_decode(_s->cString + i,
		    _s->cStringLength - i, &c);

		if (cLen == 0 || c > 0x10FFFF)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		ret[j++] = c;
		i += cLen;
	}

	return ret;
}

		of_unichar_t c;
		size_t cLen;

		cLen = of_string_utf8_decode(_s->cString + i,
		    _s->cStringLength - i, &c);

		if (cLen == 0 || c > 0x10FFFF)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		if (byteOrder != OF_BYTE_ORDER_NATIVE)
			ret[j++] = OF_BSWAP32(c);
		else
			ret[j++] = c;

		i += cLen;