ObjFW  Diff

		[ret appendString: component];

		[ret makeImmutable];

		return ret;
	}
}

- (OFString *)stringByAppendingPathExtension: (OFString *)extension
{
	if ([self hasSuffix: @"/"]) {
		void *pool = objc_autoreleasePoolPush();
		OFMutableArray *components;
		OFString *fileName, *ret;

		components =
		    [[self.pathComponents mutableCopy] autorelease];
		fileName = [components.lastObject
		    stringByAppendingFormat: @".%@", extension];
		[components replaceObjectAtIndex: components.count - 1
				      withObject: fileName];

		ret = [[OFString pathWithComponents: components] retain];
		objc_autoreleasePoolPop(pool);
		return [ret autorelease];
	} else
		return [self stringByAppendingFormat: @".%@", extension];
}

- (bool)of_isDirectoryPath
{
	return ([self hasSuffix: @"/"] || [self hasSuffix: @":"] ||
	    [OFFileURLHandler of_directoryExistsAtPath: self]);
}