ObjFW  Diff

static OFString*
standardize_path(OFArray *components, OFString *currentDirectory,
    OFString *parentDirectory, OFString *joinString)
{
	void *pool = objc_autoreleasePoolPush();
	OFMutableArray *array;
	OFString *ret;
	bool done = false;
	bool done = false, startsWithEmpty, endsWithEmpty;

	array = [[components mutableCopy] autorelease];

	if ((startsWithEmpty = [[array firstObject] isEqual: @""]))
		[array removeObjectAtIndex: 0];
	endsWithEmpty = [[array lastObject] isEqual: @""];

	while (!done) {
		size_t i, length = [array count];

		done = true;

		for (i = 0; i < length; i++) {
			id object = [array objectAtIndex: i];
			id parent;

			if (i > 0)
				parent = [array objectAtIndex: i - 1];
			else
				parent = nil;

			if ([object isEqual: currentDirectory]) {
			if ([object isEqual: currentDirectory] ||
			   [object length] == 0) {
				[array removeObjectAtIndex: i];
				done = false;

				done = false;
				break;
			}

			if ([object isEqual: parentDirectory]) {
				[array removeObjectAtIndex: i];

			if ([object isEqual: parentDirectory] &&
			    parent != nil &&
			    ![parent isEqual: parentDirectory]) {
				if (i > 0)
					[array removeObjectAtIndex: i - 1];
				[array removeObjectsInRange:
				    of_range(i - 1, 2)];

				done = false;

				break;
			}
		}
	}

	if (startsWithEmpty)
		[array insertObject: @""
			    atIndex: 0];
	if (endsWithEmpty)
		[array addObject: @""];

	ret = [[array componentsJoinedByString: joinString] retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}