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authorGravatar Stephane Glondu <steph@glondu.net>2012-09-20 09:41:14 +0200
committerGravatar Stephane Glondu <steph@glondu.net>2012-09-20 09:41:14 +0200
commit8917ab003a9b7f2abf8e399b5e7ad013b31a2e0e (patch)
treeddabcfad1c52bf730690b1be7c900f25dcdf0ec3 /AAC_print.ml
parent9216cffaaa1ef137ef5bdb5b290a930cc6198850 (diff)
Imported Upstream version 0.3upstream/0.3
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-(***************************************************************************)
-(* This is part of aac_tactics, it is distributed under the terms of the *)
-(* GNU Lesser General Public License version 3 *)
-(* (see file LICENSE for more details) *)
-(* *)
-(* Copyright 2009-2010: Thomas Braibant, Damien Pous. *)
-(***************************************************************************)
-
-(* A very basic way to interact with the envs, to choose a possible
- solution *)
-open Pp
-open AAC_matcher
-type named_env = (Names.name * Terms.t) list
-
-
-
-(** {pp_env} prints a substitution mapping names to terms, using the
-provided printer *)
-let pp_env pt : named_env -> Pp.std_ppcmds = fun env ->
- List.fold_left
- (fun acc (v,t) ->
- begin match v with
- | Names.Name s -> str (Printf.sprintf "%s: " (Names.string_of_id s))
- | Names.Anonymous -> str ("_")
- end
- ++ pt t ++ str "; " ++ acc
- )
- (str "")
- env
-
-(** {pp_envm} prints a collection of possible environments, and number
-them. This number must remain compatible with the parameters given to
-{!aac_rewrite} *)
-let pp_envm pt : named_env AAC_search_monad.m -> Pp.std_ppcmds = fun m ->
- let _,s =
- AAC_search_monad.fold
- (fun env (n,acc) ->
- n+1, h 0 (str (Printf.sprintf "%i:\t[" n) ++pp_env pt env ++ str "]") ++ fnl () :: acc
- ) m (0,[])
- in
- List.fold_left (fun acc s -> s ++ acc) (str "") (s)
-
-let trivial_substitution envm =
- match AAC_search_monad.choose envm with
- | None -> true (* assert false *)
- | Some l -> l=[]
-
-(** {pp_all} prints a collection of possible contexts and related
-possibles substitutions, giving a number to each. This number must
-remain compatible with the parameters of {!aac_rewrite} *)
-let pp_all pt : (int * Terms.t * named_env AAC_search_monad.m) AAC_search_monad.m -> Pp.std_ppcmds = fun m ->
- let _,s = AAC_search_monad.fold
- (fun (size,context,envm) (n,acc) ->
- let s = str (Printf.sprintf "occurence %i: transitivity through " n) in
- let s = s ++ pt context ++ str "\n" in
- let s = if trivial_substitution envm then s else
- s ++ str (Printf.sprintf "%i possible(s) substitution(s)" (AAC_search_monad.count envm) )
- ++ fnl () ++ pp_envm pt envm
- in
- n+1, s::acc
- ) m (0,[]) in
- List.fold_left (fun acc s -> s ++ str "\n" ++ acc) (str "") (s)
-
-(** The main printing function. {!print} uses the debruijn_env the
-rename the variables, and rebuilds raw Coq terms (for the context, and
-the terms in the environment). In order to do so, it requires the
-information gathered by the {!AAC_theory.Trans} module.*)
-let print rlt ir m (context : Term.rel_context) goal =
- if AAC_search_monad.count m = 0
- then
- (
- Tacticals.tclFAIL 0 (Pp.str "No subterm modulo AC") goal
- )
- else
- let _ = Pp.msgnl (Pp.str "All solutions:") in
- let m = AAC_search_monad.(>>) m
- (fun (i,t,envm) ->
- let envm = AAC_search_monad.(>>) envm ( fun env ->
- let l = AAC_matcher.Subst.to_list env in
- let l = List.sort (fun (n,_) (n',_) -> Pervasives.compare n n') l in
- let l =
- List.map (fun (v,t) ->
- let (name,body,types) = Term.lookup_rel v context in
- (name,t)
- ) l
- in
- AAC_search_monad.return l
- )
- in
- AAC_search_monad.return (i,t,envm)
- )
- in
- let m = AAC_search_monad.sort (fun (x,_,_) (y,_,_) -> x - y) m in
- let _ = Pp.msgnl
- (pp_all
- (fun t -> Printer.pr_constr (AAC_theory.Trans.raw_constr_of_t ir rlt context t) ) m
- )
- in
- Tacticals.tclIDTAC goal
-