1 files changed, 70 insertions, 0 deletions
diff --git a/ocaml-binary-annot/ocamlbuild/configuration.ml b/ocaml-binary-annot/ocamlbuild/configuration.ml
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index 0000000000..7a4f2f4fbd
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+++ b/ocaml-binary-annot/ocamlbuild/configuration.ml
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+(***********************************************************************)
+(*                             ocamlbuild                              *)
+(*                                                                     *)
+(*  Nicolas Pouillard, Berke Durak, projet Gallium, INRIA Rocquencourt *)
+(*                                                                     *)
+(*  Copyright 2007 Institut National de Recherche en Informatique et   *)
+(*  en Automatique.  All rights reserved.  This file is distributed    *)
+(*  under the terms of the Q Public License version 1.0.               *)
+(*                                                                     *)
+(***********************************************************************)
+
+
+(* Original author: Nicolas Pouillard *)
+open My_std
+open Log
+open Lexers
+
+type t = Lexers.conf
+
+let acknowledge_config config =
+  List.iter
+    (fun (_, config) -> List.iter Param_tags.acknowledge config.plus_tags)
+    config
+
+let cache = Hashtbl.create 107
+let (configs, add_config) =
+  let configs = ref [] in
+  (fun () -> !configs),
+  (fun config ->
+     acknowledge_config config;
+     configs := config :: !configs;
+     Hashtbl.clear cache)
+
+let parse_string s =
+  let conf = Lexers.conf_lines None 1 (Printf.sprintf "string: %S" s) (Lexing.from_string s) in
+  add_config conf
+
+let parse_file ?dir file =
+  try
+    with_input_file file begin fun ic ->
+      let conf = Lexers.conf_lines dir 1 (Printf.sprintf "file: %S" file) (Lexing.from_channel ic) in
+      add_config conf
+    end
+  with Lexers.Error msg -> raise (Lexers.Error (file ^ ": " ^ msg))
+
+let key_match = Glob.eval
+
+let apply_config s (config : t) init =
+  List.fold_left begin fun tags (key, v) ->
+    if key_match key s then
+      List.fold_right Tags.add v.plus_tags (List.fold_right Tags.remove v.minus_tags tags)
+    else tags
+  end init config
+
+let apply_configs s = List.fold_right (apply_config s) (configs ()) Tags.empty
+
+let tags_of_filename s =
+  try Hashtbl.find cache s
+  with Not_found ->
+    let res = apply_configs s in
+    let () = Hashtbl.replace cache s res in
+    res
+
+let has_tag tag = Tags.mem tag (tags_of_filename "")
+
+let tag_file file tags =
+  if tags <> [] then parse_string (Printf.sprintf "%S: %s" file (String.concat ", " tags));;
+
+let tag_any tags =
+  if tags <> [] then parse_string (Printf.sprintf "true: %s" (String.concat ", " tags));;