open Table
open Table_options
open Query_tree

let parse_xpath p =
  Xpath.Parser.parse (Ulexing.from_utf8_string p)

let main () = 
  let () = Table_options.parse () in
  let doc =
    let fd, close_fd = match !Table_options.input_file with
	None | Some "-" | Some "/dev/stdin" ->stdin,ignore 
      | Some input ->
	let fd = open_in input in fd, fun() -> close_in fd
    in
    (*let inc = open_in Sys.argv.(1) in*)
    let doc = Naive_tree.load_xml_file fd in
    close_fd(); 
    doc
  in
  let queries =
    List.map ( fun q ->
      parse_xpath q) 
      !Table_options.queries
  in
  let t1 = Unix.gettimeofday () in
  let query_tree_list =
    List.map (fun query -> compile_xpath query) queries
  in
  let mini_qtree_list = 
    List.map (fun qtree -> Query_tree.minimize_qtree qtree) query_tree_list 
  in
  List.iter ( fun q -> 
    let res = eval_qtree doc [ (Naive_tree.root doc) ] q in
    print_string "<xml_result num=\"1\" >\n";
    print_node_list doc res;
    print_string "</xml_result>\n";
  ) mini_qtree_list ;
  
  let t2 = Unix.gettimeofday () in
  let t = (t2 -. t1) *. 1000. in
  let _ = if !Table_options.count then 
       Format.fprintf Format.std_formatter "there are %i nodes\nit takes %fms\n" !Query_tree.compteur t;
  in
  exit 0


let () = main ()