parse_paper_size (opt (d, o, "paper-size", ""), &paper_width, &paper_length);
xr->left_margin = parse_dimension (opt (d, o, "left-margin", ".5in"));
xr->right_margin = parse_dimension (opt (d, o, "right-margin", ".5in"));
parse_paper_size (opt (d, o, "paper-size", ""), &paper_width, &paper_length);
xr->left_margin = parse_dimension (opt (d, o, "left-margin", ".5in"));
xr->right_margin = parse_dimension (opt (d, o, "right-margin", ".5in"));