a->width = parse_page_size (opt (d, o, "width", "79"));
paper_length = parse_page_size (opt (d, o, "length", "66"));
a->auto_width = a->width < 0;
a->auto_length = paper_length < 0;
a->length = paper_length - vertical_margins (a);
a->width = parse_page_size (opt (d, o, "width", "79"));
paper_length = parse_page_size (opt (d, o, "length", "66"));
a->auto_width = a->width < 0;
a->auto_length = paper_length < 0;
a->length = paper_length - vertical_margins (a);