ObjFW  Diff

}

- (instancetype)initWithString: (OFString *)string
{
	return (id)[[OFMutableUTF8String alloc] initWithString: string];
}

- (instancetype)initWithCharacters: (const of_unichar_t *)characters
			    length: (size_t)length
{
	return (id)[[OFMutableUTF8String alloc] initWithCharacters: characters
							    length: length];
}

- (instancetype)initWithUTF16String: (const of_char16_t *)string

	if (self == [OFMutableString class])
		return (id)&placeholder;

	return [super alloc];
}

#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
{
	void *pool = objc_autoreleasePoolPush();
	const of_unichar_t *characters = self.characters;
	size_t length = self.length;
	bool isStart = true;

	for (size_t i = 0; i < length; i++) {
		const of_unichar_t *const *table;
		size_t tableSize;
		of_unichar_t c = characters[i];

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

}
#else
static void
convert(OFMutableString *self, char (*startFunction)(char),
    char (*middleFunction)(char))
{
	void *pool = objc_autoreleasePoolPush();
	const of_unichar_t *characters = self.characters;
	size_t length = self.length;
	bool isStart = true;

	for (size_t i = 0; i < length; i++) {
		char (*function)(char) =
		    (isStart ? startFunction : middleFunction);
		of_unichar_t c = characters[i];

		if (c <= 0x7F)
			[self setCharacter: (int)function(c) atIndex: i];

		isStart = of_ascii_isspace(c);
	}

	objc_autoreleasePoolPop(pool);
}
#endif

- (void)setCharacter: (of_unichar_t)character atIndex: (size_t)idx
{
	void *pool = objc_autoreleasePoolPush();
	OFString *string =
	    [OFString stringWithCharacters: &character length: 1];
	[self replaceCharactersInRange: OFMakeRange(idx, 1) withString: string];
	objc_autoreleasePoolPop(pool);
}

- (void)appendString: (OFString *)string
{
	[self insertString: string atIndex: self.length];
}

- (void)appendCharacters: (const of_unichar_t *)characters
		  length: (size_t)length
{
	void *pool = objc_autoreleasePoolPush();
	[self appendString: [OFString stringWithCharacters: characters
						    length: length]];
	objc_autoreleasePoolPop(pool);
}

}

- (void)reverse
{
	size_t i, j, length = self.length;

	for (i = 0, j = length - 1; i < length / 2; i++, j--) {
		of_unichar_t tmp = [self characterAtIndex: j];
		[self setCharacter: [self characterAtIndex: i] atIndex: j];
		[self setCharacter: tmp atIndex: i];
	}
}

#ifdef OF_HAVE_UNICODE_TABLES
- (void)uppercase

- (void)replaceOccurrencesOfString: (OFString *)string
			withString: (OFString *)replacement
			   options: (int)options
			     range: (OFRange)range
{
	void *pool = objc_autoreleasePoolPush(), *pool2;
	const of_unichar_t *characters;
	const of_unichar_t *searchCharacters = string.characters;
	size_t searchLength = string.length;
	size_t replacementLength = replacement.length;

	if (string == nil || replacement == nil)
		@throw [OFInvalidArgumentException exception];

	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > self.length)
		@throw [OFOutOfRangeException exception];

	if (searchLength > range.length) {
		objc_autoreleasePoolPop(pool);
		return;
	}

	pool2 = objc_autoreleasePoolPush();
	characters = self.characters;

	for (size_t i = range.location; i <= range.length - searchLength; i++) {
		if (memcmp(characters + i, searchCharacters,
		    searchLength * sizeof(of_unichar_t)) != 0)
			continue;

		[self replaceCharactersInRange: OFMakeRange(i, searchLength)
				    withString: replacement];

		range.length -= searchLength;
		range.length += replacementLength;

	objc_autoreleasePoolPop(pool);
}

- (void)deleteLeadingWhitespaces
{
	void *pool = objc_autoreleasePoolPush();
	const of_unichar_t *characters = self.characters;
	size_t i, length = self.length;

	for (i = 0; i < length; i++) {
		of_unichar_t c = characters[i];

		if (!of_ascii_isspace(c))
			break;
	}

	objc_autoreleasePoolPop(pool);

	[self deleteCharactersInRange: OFMakeRange(0, i)];
}

- (void)deleteTrailingWhitespaces
{
	void *pool;
	const of_unichar_t *characters, *p;
	size_t length, d;

	length = self.length;

	if (length == 0)
		return;