-(* Copyright (C) 2000, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://cs.unibo.it/helm/.
- *)
-
-module H = Hashtbl
+(*
+ ||M|| This file is part of HELM, an Hypertextual, Electronic
+ ||A|| Library of Mathematics, developed at the Computer Science
+ ||T|| Department, University of Bologna, Italy.
+ ||I||
+ ||T|| HELM is free software; you can redistribute it and/or
+ ||A|| modify it under the terms of the GNU General Public License
+ \ / version 2 or (at your option) any later version.
+ \ / This software is distributed as is, NO WARRANTY.
+ V_______________________________________________________________ *)
+
+module U = NUri
+module H = U.UriHash
+module C = Cps
+module O = Options
+module Y = Entity
module M = Meta
module A = Aut
-type context_node = M.qid option (* context node: None = root *)
+(* qualified identifier: uri, name, qualifiers *)
+type qid = M.uri * M.id * M.id list
-type context = (M.qid, M.term * context_node) H.t (* context: son, parent *)
+type context_node = qid option (* context node: None = root *)
type status = {
- genv: M.environment; (* global environment *)
- path: M.id list; (* current section path *)
- cnt: context; (* context *)
- node: context_node; (* current context node *)
- explicit: bool (* need explicit context root? *)
+ path: M.id list; (* current section path *)
+ node: context_node; (* current context node *)
+ nodes: context_node list; (* context node list *)
+ line: int; (* line number *)
+ cover: string (* initial segment of URI hierarchy *)
}
type resolver = Local of int
| Global of M.pars
- | Unresolved
-let initial_status = {
- genv = []; path = []; cnt = H.create 11; node = None; explicit = true
-}
+let henv_size, hcnt_size = 7000, 4300 (* hash tables initial sizes *)
+
+let henv = H.create henv_size (* optimized global environment *)
+
+let hcnt = H.create hcnt_size (* optimized context *)
+
+(* Internal functions *******************************************************)
+
+let id_of_name (id, _, _) = id
+
+let mk_qid st id path =
+ let uripath = if st.cover = "" then path else st.cover :: path in
+ let str = String.concat "/" uripath in
+ let str = Filename.concat str id in
+ U.uri_of_string ("ld:/" ^ str ^ ".ld"), id, path
+
+let uri_of_qid (uri, _, _) = uri
let complete_qid f st (id, is_local, qs) =
- let f qs = f (id, qs) in
- if is_local then Cps.list_rev_append f st.path ~tail:qs else f qs
-
-let resolve_gref f st lenv gref =
- let rec get_local f i = function
- | [] -> f None
- | (name, _) :: _ when name = gref -> f (Some i)
- | _ :: tl -> get_local f (succ i) tl
- in
- let rec get_global f = function
- | [] -> f None
- | (args, name, _, _) :: _ when name = gref -> f (Some args)
- | _ :: tl -> get_global f tl
- in
- let g = function
- | Some args -> f (Global args)
- | None -> f Unresolved
- in
- let f = function
- | Some i -> f (Local i)
- | None -> get_global g st.genv
- in
- get_local f 0 lenv
+ let f qs = f (mk_qid st id qs) in
+ let f path = C.list_rev_append f path ~tail:qs in
+ let rec skip f = function
+ | phd :: ptl, qshd :: _ when phd = qshd -> f ptl
+ | _ :: ptl, _ :: _ -> skip f (ptl, qs)
+ | _ -> f []
+ in
+ if is_local then f st.path else skip f (st.path, qs)
+
+let relax_qid f st (_, id, path) =
+ let f path = f (mk_qid st id path) in
+ let f = function
+ | _ :: tl -> C.list_rev f tl
+ | [] -> assert false
+ in
+ C.list_rev f path
+
+let relax_opt_qid f st = function
+ | None -> f None
+ | Some qid -> let f qid = f (Some qid) in relax_qid f st qid
+
+let resolve_lref f st l lenv id =
+ let rec aux f i = function
+ | [] -> f None
+ | (name, _) :: _ when name = id -> f (Some (M.LRef (l, i)))
+ | _ :: tl -> aux f (succ i) tl
+ in
+ aux f 0 lenv
+
+let resolve_lref_strict f st l lenv id =
+ let f = function
+ | Some t -> f t
+ | None -> assert false
+ in
+ resolve_lref f st l lenv id
+
+let resolve_gref f st qid =
+ try let args = H.find henv (uri_of_qid qid) in f qid (Some args)
+ with Not_found -> f qid None
+
+let resolve_gref_relaxed f st qid =
+(* this is not tail recursive *)
+ let rec g qid = function
+ | None -> relax_qid (resolve_gref g st) st qid
+ | Some args -> f qid args
+ in
+ resolve_gref g st qid
+
+let get_pars f st = function
+ | None -> f [] None
+ | Some qid as node ->
+ try let pars = H.find hcnt (uri_of_qid qid) in f pars None
+ with Not_found -> f [] (Some node)
+let get_pars_relaxed f st =
+(* this is not tail recursive *)
+ let rec g pars = function
+ | None -> f pars
+ | Some node -> relax_opt_qid (get_pars g st) st node
+ in
+ get_pars g st st.node
+
+(* this is not tail recursive on the GRef branch *)
let rec xlate_term f st lenv = function
- | A.Sort sort -> f (M.Sort sort)
+ | A.Sort sort ->
+ f (M.Sort sort)
| A.Appl (v, t) ->
let f vv tt = f (M.Appl (vv, tt)) in
let f vv = xlate_term (f vv) st lenv t in
xlate_term f st lenv v
| A.Abst (name, w, t) ->
- let add name w lenv =
- let f name = (name, w) :: lenv in
- complete_qid f st (name, true, [])
- in
+ let add name w lenv = (name, w) :: lenv in
let f ww tt = f (M.Abst (name, ww, tt)) in
let f ww = xlate_term (f ww) st (add name ww lenv) t in
xlate_term f st lenv w
| A.GRef (name, args) ->
- let f name = function
- | Local i -> f (M.LRef i)
- | Global defs ->
- let map1 f = xlate_term f st lenv in
- let map2 f (name, _) = f (M.GRef (name, [])) in
- let f tail =
- let f args = f (M.GRef (name, args)) in
- let f defs = Cps.list_rev_map_append f map2 defs ~tail in
- Cps.list_sub_strict f defs args
- in
- Cps.list_map f map1 args
- | Unresolved -> assert false
+ let l = List.length lenv in
+ let g qid defs =
+ let map1 f = xlate_term f st lenv in
+ let map2 f (id, _) = resolve_lref_strict f st l lenv id in
+ let f tail =
+ let f args = f (M.GRef (l, uri_of_qid qid, args)) in
+ let f defs = C.list_rev_map_append f map2 defs ~tail in
+ C.list_sub_strict f defs args
+ in
+ C.list_map f map1 args
+ in
+ let g qid = resolve_gref_relaxed g st qid in
+ let f = function
+ | Some t -> f t
+ | None -> complete_qid g st name
in
- let f name = resolve_gref (f name) st lenv name in
- complete_qid f st name
+ resolve_lref f st l lenv (id_of_name name)
-let xlate_item f st = function
- | A.Section (Some name) ->
- f {st with path = name :: st.path}
+let xlate_entity err f st = function
+ | A.Section (Some (_, name)) ->
+ err {st with path = name :: st.path; nodes = st.node :: st.nodes}
| A.Section None ->
- begin match st.path with
- | [] -> assert false
- | _ :: tl -> f {st with path = tl}
+ begin match st.path, st.nodes with
+ | _ :: ptl, nhd :: ntl ->
+ err {st with path = ptl; node = nhd; nodes = ntl}
+ | _ -> assert false
end
| A.Context None ->
- f {st with node = None}
+ err {st with node = None}
| A.Context (Some name) ->
- let f name = f {st with node = Some name} in
- complete_qid f st name
+ let f name = err {st with node = Some name} in
+ complete_qid f st name
| A.Block (name, w) ->
- let f name ww = H.add st.cnt name (ww, st.node); f st in
- let f name = xlate_term (f name) st [] w in
- complete_qid f st (name, true, [])
- | A.Decl (name, w) -> f st
- | A.Def (name, w, trans, v) -> f st
-
-let meta_of_aut f book =
- let f st = f st.genv in
- Cps.list_fold_left f xlate_item initial_status book
+ let f qid =
+ let f pars =
+ let f ww =
+ H.add hcnt (uri_of_qid qid) ((name, ww) :: pars);
+ err {st with node = Some qid}
+ in
+ xlate_term f st pars w
+ in
+ get_pars_relaxed f st
+ in
+ complete_qid f st (name, true, [])
+ | A.Decl (name, w) ->
+ let f pars =
+ let f qid =
+ let f ww =
+ H.add henv (uri_of_qid qid) pars;
+ let a = [Y.Mark st.line] in
+ let entry = pars, ww, None in
+ let entity = a, uri_of_qid qid, Y.Abst entry in
+ f {st with line = succ st.line} entity
+ in
+ xlate_term f st pars w
+ in
+ complete_qid f st (name, true, [])
+ in
+ get_pars_relaxed f st
+ | A.Def (name, w, trans, v) ->
+ let f pars =
+ let f qid =
+ let f ww vv =
+ H.add henv (uri_of_qid qid) pars;
+ let a = Y.Mark st.line :: if trans then [] else [Y.Priv] in
+ let entry = pars, ww, Some vv in
+ let entity = a, uri_of_qid qid, Y.Abbr entry in
+ f {st with line = succ st.line} entity
+ in
+ let f ww = xlate_term (f ww) st pars v in
+ xlate_term f st pars w
+ in
+ complete_qid f st (name, true, [])
+ in
+ get_pars_relaxed f st
+
+(* Interface functions ******************************************************)
+
+let initial_status () =
+ H.clear henv; H.clear hcnt; {
+ path = []; node = None; nodes = []; line = 1; cover = !O.cover
+}
+
+let refresh_status st = {st with
+ cover = !O.cover
+}
+
+let meta_of_aut = xlate_entity