ObjFW  Diff

	 * removed, so return a new string anyway.
	 */
	if (i < 0)
		i = 0;

	return [self substringWithRange: of_range(i, length - i)];
}

- (OFString*)pathExtension
{
	void *pool = objc_autoreleasePoolPush();
	OFString *ret, *fileName;
	size_t pos;

	fileName = [self lastPathComponent];
	pos = [fileName rangeOfString: @"."
			      options: OF_STRING_SEARCH_BACKWARDS].location;
	if (pos == OF_NOT_FOUND || pos == 0)
		return @"";

	ret = [fileName substringWithRange:
	    of_range(pos + 1, [fileName length] - pos - 1)];

	[ret retain];
	objc_autoreleasePoolPop(pool);
	return [ret autorelease];
}

- (OFString*)stringByDeletingLastPathComponent
{
	void *pool;
	const of_unichar_t *characters;
	size_t i, length = [self length];

	[components replaceObjectAtIndex: [components count] - 1
			      withObject: fileName];

	ret = [OFString pathWithComponents: components];

	[ret retain];
	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}

- (OFString*)stringByStandardizingPath
{
	return standardize_path([self pathComponents],
	    OF_PATH_CURRENT_DIRECTORY, OF_PATH_PARENT_DIRECTORY,