ObjFW  Diff

	if (freeWhenDone)
		free(UTF8String);

	return self;
}

#ifdef OF_HAVE_UNICODE_TABLES
- (void)of_convertWithWordStartTable: (const of_unichar_t *const [])startTable
		     wordMiddleTable: (const of_unichar_t *const [])middleTable
		  wordStartTableSize: (size_t)startTableSize
		 wordMiddleTableSize: (size_t)middleTableSize
{
	of_unichar_t *unicodeString;
	size_t unicodeLen, newCStringLength;
	size_t i, j;
	char *newCString;
	bool isStart = true;

	if (!_s->isUTF8) {
		uint8_t t;
		const of_unichar_t *const *table;

		assert(startTableSize >= 1 && middleTableSize >= 1);

		_s->hashed = false;

		for (i = 0; i < _s->cStringLength; i++) {
			if (isStart)

				_s->cString[i] = t;
		}

		return;
	}

	unicodeLen = self.length;
	unicodeString = of_alloc(unicodeLen, sizeof(of_unichar_t));

	i = j = 0;
	newCStringLength = 0;

	while (i < _s->cStringLength) {
		const of_unichar_t *const *table;
		size_t tableSize;
		of_unichar_t c;
		ssize_t cLen;

		if (isStart) {
			table = startTable;
			tableSize = middleTableSize;
		} else {
			table = middleTable;

			free(unicodeString);
			@throw [OFInvalidEncodingException exception];
		}

		isStart = of_ascii_isspace(c);

		if (c >> 8 < tableSize) {
			of_unichar_t tc = table[c >> 8][c & 0xFF];

			if (tc)
				c = tc;
		}
		unicodeString[j++] = c;

		if (c < 0x80)

	/*
	 * Even though cStringLength can change, length cannot, therefore no
	 * need to change it.
	 */
}
#endif

- (void)setCharacter: (of_unichar_t)character atIndex: (size_t)idx
{
	char buffer[4];
	of_unichar_t c;
	size_t lenNew;
	ssize_t lenOld;

	if (_s->isUTF8)
		idx = of_string_utf8_get_position(_s->cString, idx,
		    _s->cStringLength);

	_s->cStringLength += UTF8StringLength;
	_s->length += length;

	_s->cString[_s->cStringLength] = 0;
}

- (void)appendCString: (const char *)cString
	     encoding: (of_string_encoding_t)encoding
{
	[self appendCString: cString
		   encoding: encoding
		     length: strlen(cString)];
}

- (void)appendCString: (const char *)cString
	     encoding: (of_string_encoding_t)encoding
	       length: (size_t)cStringLength
{
	if (encoding == OF_STRING_ENCODING_UTF_8)
		[self appendUTF8String: cString length: cStringLength];
	else {
		void *pool = objc_autoreleasePoolPush();

		[self appendString:
		    [OFString stringWithCString: cString
				       encoding: encoding

	    [string isKindOfClass: [OFMutableUTF8String class]]) {
		if (((OFMutableUTF8String *)string)->_s->isUTF8)
			_s->isUTF8 = true;
	} else
		_s->isUTF8 = true;
}

- (void)appendCharacters: (const of_unichar_t *)characters
		  length: (size_t)length
{
	char *tmp = of_alloc((length * 4) + 1, 1);

	@try {
		size_t j = 0;
		bool isUTF8 = false;

	    [string isKindOfClass: [OFMutableUTF8String class]]) {
		if (((OFMutableUTF8String *)string)->_s->isUTF8)
			_s->isUTF8 = true;
	} else
		_s->isUTF8 = true;
}

- (void)deleteCharactersInRange: (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 exception];

	@try {
		_s->cString = of_realloc(_s->cString, _s->cStringLength + 1, 1);
	} @catch (OFOutOfMemoryException *e) {
		/* We don't really care, as we only made it smaller */
	}
}

- (void)replaceCharactersInRange: (of_range_t)range
		      withString: (OFString *)replacement
{
	size_t start = range.location;
	size_t end = range.location + range.length;
	size_t newCStringLength, newLength;

	if (replacement == nil)

	} else
		_s->isUTF8 = true;
}

- (void)replaceOccurrencesOfString: (OFString *)string
			withString: (OFString *)replacement
			   options: (int)options
			     range: (of_range_t)range
{
	const char *searchString = string.UTF8String;
	const char *replacementString = replacement.UTF8String;
	size_t searchLength = string.UTF8StringLength;
	size_t replacementLength = replacement.UTF8StringLength;
	size_t last, newCStringLength, newLength;
	char *newCString;