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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 flag_list = (string * string) list
type t = Lexers.conf
let cache = Hashtbl.create 107
let (configs, add_config) =
let configs = ref [] in
(fun () -> !configs),
(fun 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 =
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
let key_match = Glob.eval
let apply_config s (config : t) init =
List.fold_left begin fun (tags, flags as acc) (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),
List.fold_right Flags.add v.plus_flags (List.fold_right Flags.remove v.minus_flags flags))
else acc
end init config
let apply_configs s =
let (tags, flags) =
List.fold_right (apply_config s) (configs ()) (Tags.empty, [])
in (tags, Flags.to_spec flags)
let tags_and_flags_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 tags_of_filename x = fst (tags_and_flags_of_filename x)
let flags_of_filename x = snd (tags_and_flags_of_filename x)
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));;
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