getskiplinenum
p_first = getskiplinenum(&s);
p_ptrn_lines = getskiplinenum(&s) - p_first + 1;
min = getskiplinenum(&s);
p_first = getskiplinenum(&s);
p_newfirst = getskiplinenum(&s);
p_first = getskiplinenum(&s);
p_ptrn_lines = getskiplinenum(&s);
p_newfirst = getskiplinenum(&s);
p_repl_lines = getskiplinenum(&s);