Refactor HTML Tracing to not depend on external files (style, javascript). Add a...

[tatoo.git] / src / options.ml

diff --git a/src/options.ml b/src/options.ml
index 70c2b4d..b8c5730 100644 (file)
--- a/src/options.ml
+++ b/src/options.ml
@@ -3,26 +3,43 @@ open Arg
 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
 
 let specs = align [
-  "-c", Set count, " write the number of results only";
+  "-c", Set count,
+        " write the number of results only";
   "--count", Set count, " ";
-  "-s", Set stats, " display timing and various statistics";
+  "-s", Set stats,
+        " display timing and various statistics";
   "--stats", Set stats, " ";
-  "-d", String (set_string_option input_file), " specify the input document file [default stdin]";
+  "-d", String (set_string_option input_file),
+        " specify the input document file [default stdin]";
   "--doc", String (set_string_option input_file), " ";
-  "-o", String (set_string_option output_file), " specify the output file [default stdout]";
+  "-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