let count = ref false
let input_file : string option ref = ref None
let output_file : string option ref = ref None
-let query = ref ""
+let queries = ref []
let stats = ref false
+let compose = ref false
+let parallel = ref false
let set_string_option r s = r := Some s
"--doc", String (set_string_option input_file), " ";
"-o", String (set_string_option output_file), " specify the output file [default stdout]";
"--out", String (set_string_option output_file), " ";
+ "-C", Set compose, " compose queries: each query is applied to the results of the previous one [default run all queries
+from the root node]";
+ "--compose", Set compose, " ";
+ "-p", Set parallel, " run all queries in parallel [default run all queries sequentially]";
+ "--parallel", Set parallel, " ";
]
-let usage_msg = Printf.sprintf "usage: %s [options] query" Sys.argv.(0)
+let usage_msg = Printf.sprintf "usage: %s [options] query [query ... query]" Sys.argv.(0)
let usage () = usage specs usage_msg
let parse () =
- parse specs (fun q -> query := q) usage_msg
+ parse specs (fun q -> queries := q :: !queries ) usage_msg;
+ match !queries with
+ [] -> raise (Arg.Bad "missing query")
+ | l -> queries := List.rev l