ObjFW  Diff

			size_t pos;
			of_options_parser_option_t *option;

			_lastOption = '-';
			_index++;

			if ((pos = [argument rangeOfString: @"="].location) !=
			    OF_NOT_FOUND) {
			    OF_NOT_FOUND)
				of_range_t range = of_range(pos + 1,
				    argument.length - pos - 1);
				_argument = [[argument
				    substringWithRange: range] copy];
			} else
				    substringFromIndex: pos + 1] copy];
			else
				pos = argument.length;

			_lastLongOption = [[argument substringWithRange:
			    of_range(2, pos - 2)] copy];

			objc_autoreleasePoolPop(pool);

				return _lastOption;
			}

			if (_index >= _arguments.count)
				return ':';

			argument = [_arguments objectAtIndex: _index];
			argument = [argument substringWithRange:
			argument = [argument substringFromIndex: _subIndex];
			    of_range(_subIndex, argument.length - _subIndex)];

			_argument = [argument copy];

			if (iter->isSpecifiedPtr != NULL)
				*iter->isSpecifiedPtr = true;
			if (iter->argumentPtr != NULL)
				*iter->argumentPtr =