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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(** This module provides the "Dump Tree" command that allows dumping the
current state of the proof stree in XML format *)
(** Contributed by Cezary Kaliszyk, Radboud University Nijmegen *)
(*i camlp4deps: "parsing/grammar.cma" i*)
open Tacexpr;;
open Decl_mode;;
open Printer;;
open Pp;;
open Environ;;
open Format;;
open Proof_type;;
open Evd;;
open Termops;;
open Ppconstr;;
open Names;;
exception Different
let xmlstream s =
(* In XML we want to print the whole stream so we can force the evaluation *)
Stream.of_list (List.map xmlescape (Stream.npeek max_int s))
;;
let thin_sign osign sign =
Sign.fold_named_context
(fun (id,c,ty as d) sign ->
try
if Sign.lookup_named id osign = (id,c,ty) then sign
else raise Different
with Not_found | Different -> Environ.push_named_context_val d sign)
sign ~init:Environ.empty_named_context_val
;;
let pr_tactic_xml = function
| TacArg (Tacexp t) -> str "<tactic cmd=\"" ++ xmlstream (Pptactic.pr_glob_tactic (Global.env()) t) ++ str "\"/>"
| t -> str "<tactic cmd=\"" ++ xmlstream (Pptactic.pr_tactic (Global.env()) t) ++ str "\"/>"
;;
let pr_proof_instr_xml instr =
Ppdecl_proof.pr_proof_instr (Global.env()) instr
;;
let pr_rule_xml pr = function
| Prim r -> str "<rule text=\"" ++ xmlstream (pr_prim_rule r) ++ str "\"/>"
| Nested(cmpd, subtree) ->
hov 2 (str "<cmpdrule>" ++ fnl () ++
begin match cmpd with
Tactic (texp, _) -> pr_tactic_xml texp
| Proof_instr (_,instr) -> pr_proof_instr_xml instr
end ++ fnl ()
++ pr subtree
) ++ fnl () ++ str "</cmpdrule>"
| Daimon -> str "<daimon/>"
| Decl_proof _ -> str "<proof/>"
(* | Change_evars -> str "<chgevars/>"*)
;;
let pr_var_decl_xml env (id,c,typ) =
let ptyp = print_constr_env env typ in
match c with
| None ->
(str "<hyp id=\"" ++ xmlstream (pr_id id) ++ str "\" type=\"" ++ xmlstream ptyp ++ str "\"/>")
| Some c ->
(* Force evaluation *)
let pb = print_constr_env env c in
(str "<hyp id=\"" ++ xmlstream (pr_id id) ++ str "\" type=\"" ++ xmlstream ptyp ++ str "\" body=\"" ++
xmlstream pb ++ str "\"/>")
;;
let pr_rel_decl_xml env (na,c,typ) =
let pbody = match c with
| None -> mt ()
| Some c ->
(* Force evaluation *)
let pb = print_constr_env env c in
(str" body=\"" ++ xmlstream pb ++ str "\"") in
let ptyp = print_constr_env env typ in
let pid =
match na with
| Anonymous -> mt ()
| Name id -> str " id=\"" ++ pr_id id ++ str "\""
in
(str "<hyp" ++ pid ++ str " type=\"" ++ xmlstream ptyp ++ str "\"" ++ pbody ++ str "/>")
;;
let pr_context_xml env =
let sign_env =
fold_named_context
(fun env d pp -> pp ++ pr_var_decl_xml env d)
env ~init:(mt ())
in
let db_env =
fold_rel_context
(fun env d pp -> pp ++ pr_rel_decl_xml env d)
env ~init:(mt ())
in
(sign_env ++ db_env)
;;
let pr_subgoal_metas_xml metas env=
let pr_one (meta, typ) =
fnl () ++ str "<meta index=\"" ++ int meta ++ str " type=\"" ++ xmlstream (pr_ltype_env_at_top env typ) ++
str "\"/>"
in
List.fold_left (++) (mt ()) (List.map pr_one metas)
;;
let pr_goal_xml g =
let env = try evar_unfiltered_env g with _ -> empty_env in
if g.evar_extra = None then
(hov 2 (str "<goal>" ++ fnl () ++ str "<concl type=\"" ++
xmlstream (pr_ltype_env_at_top env g.evar_concl) ++
str "\"/>" ++
(pr_context_xml env)) ++
fnl () ++ str "</goal>")
else
(hov 2 (str "<goal type=\"declarative\">" ++
(pr_context_xml env)) ++
fnl () ++ str "</goal>")
;;
let rec print_proof_xml sigma osign pf =
let hyps = Environ.named_context_of_val pf.goal.evar_hyps in
let hyps' = thin_sign osign hyps in
match pf.ref with
| None -> hov 2 (str "<tree>" ++ fnl () ++ (pr_goal_xml {pf.goal with evar_hyps=hyps'})) ++ fnl () ++ str "</tree>"
| Some(r,spfl) ->
hov 2 (str "<tree>" ++ fnl () ++
(pr_goal_xml {pf.goal with evar_hyps=hyps'}) ++ fnl () ++ (pr_rule_xml (print_proof_xml sigma osign) r) ++
(List.fold_left (fun x y -> x ++ fnl () ++ y) (mt ()) (List.map (print_proof_xml sigma hyps) spfl))) ++ fnl () ++ str "</tree>"
;;
let print_proof_xml () =
let pp = print_proof_xml Evd.empty Sign.empty_named_context
(Tacmach.proof_of_pftreestate (Refiner.top_of_tree (Pfedit.get_pftreestate ())))
in
msgnl pp
;;
VERNAC COMMAND EXTEND DumpTree
[ "Dump" "Tree" ] -> [ print_proof_xml () ]
END
|
