diff options
Diffstat (limited to 'parsing/pptactic.ml')
| -rw-r--r-- | parsing/pptactic.ml | 607 |
1 files changed, 607 insertions, 0 deletions
diff --git a/parsing/pptactic.ml b/parsing/pptactic.ml new file mode 100644 index 000000000..9dc447f7d --- /dev/null +++ b/parsing/pptactic.ml @@ -0,0 +1,607 @@ +(****************************************************************************) +(* *) +(* The Coq Proof Assistant *) +(* *) +(* Projet Coq *) +(* *) +(* INRIA LRI-CNRS ENS-CNRS *) +(* Rocquencourt Orsay Lyon *) +(* *) +(****************************************************************************) + +(* $Id$ *) + +open Pp +open Names +open Nameops +open Util +open Extend +open Ppconstr +open Tacexpr +open Rawterm +open Genarg + + (* Extensions *) +let prtac_tab = Hashtbl.create 17 + +let declare_extra_tactic_pprule s f g = + Hashtbl.add prtac_tab s (f,g) + +let genarg_pprule = ref Stringmap.empty + +let declare_extra_genarg_pprule (rawwit, f) (wit, g) = + let s = match unquote wit with + | ExtraArgType s -> s + | _ -> error + "Can declare a pretty-printing rule only for extra argument types" + in + let f x = f (out_gen rawwit x) in + let g x = g (out_gen wit x) in + genarg_pprule := Stringmap.add s (f,g) !genarg_pprule + +(* [pr_rawtac] is here to cheat with ML typing system, + gen_tactic_expr is polymorphic but with some occurrences of its + instance raw_tactic_expr in it; then pr_tactic should be + polymorphic but with some calls to instance of itself, what ML does + not accept; pr_rawtac0 denotes this instance of pr_tactic on + raw_tactic_expr *) + +let pr_rawtac = + ref (fun _ -> failwith "Printer for raw tactic expr is not defined" + : raw_tactic_expr -> std_ppcmds) +let pr_rawtac0 = + ref (fun _ -> failwith "Printer for raw tactic expr is not defined" + : raw_tactic_expr -> std_ppcmds) + +let pr_arg pr x = spc () ++ pr x + +let pr_name = function + | Anonymous -> mt () + | Name id -> spc () ++ pr_id id + +let pr_metanum pr = function + | AN (_,x) -> pr x + | MetaNum (_,n) -> str "?" ++ int n + +let pr_or_var pr = function + | ArgArg x -> pr x + | ArgVar (_,s) -> pr_id s + +let pr_opt pr = function + | None -> mt () + | Some x -> spc () ++ pr x + +let pr_or_meta pr = function + | AI x -> pr x + | _ -> failwith "pr_hyp_location: unexpected quotation meta-variable" + +let pr_casted_open_constr = pr_constr + +let pr_quantified_hypothesis = function + | AnonHyp n -> int n + | NamedHyp id -> pr_id id + +let pr_quantified_hypothesis_arg h = spc () ++ pr_quantified_hypothesis h + +let pr_binding prc = function + | NamedHyp id, c -> hov 1 (pr_id id ++ str ":=" ++ cut () ++ prc c) + | AnonHyp n, c -> hov 1 (int n ++ str ":=" ++ cut () ++ prc c) + +let pr_bindings prc = function + | ImplicitBindings l -> + brk (1,1) ++ str "with" ++ brk (1,1) ++ + prlist_with_sep spc prc l + | ExplicitBindings l -> + brk (1,1) ++ str "with" ++ brk (1,1) ++ + prlist_with_sep spc (pr_binding prc) l + | NoBindings -> mt () + +let pr_with_bindings prc (c,bl) = prc c ++ hv 0 (pr_bindings prc bl) + +let rec pr_intro_pattern = function + | IntroOrAndPattern pll -> + str "[" ++ + hv 0 (prlist_with_sep pr_coma (prlist_with_sep spc pr_intro_pattern) pll) + ++ str "]" +(* + | IntroAndPattern pl -> + str "(" ++ hov 0 (prlist_with_sep pr_coma pr_intro_pattern pl) ++ str ")" +*) + | IntroWildcard -> str "_" + | IntroIdentifier id -> pr_id id + +let pr_hyp_location pr_id = function + | InHyp id -> spc () ++ pr_id id + | InHypType id -> spc () ++ str "(Type of " ++ pr_id id ++ str ")" + +let pr_clause pr_id = function + | [] -> mt () + | l -> spc () ++ hov 0 (str "in" ++ prlist (pr_hyp_location pr_id) l) + +let pr_clause_pattern pr_id = function (* To check *) + | (None, []) -> mt () + | (glopt,l) -> + str "in" ++ + prlist + (fun (id,nl) -> spc () ++ prlist_with_sep spc int nl + ++ spc () ++ pr_id id) l ++ + pr_opt (prlist_with_sep spc int) glopt + +let pr_induction_arg prc = function + | ElimOnConstr c -> prc c + | ElimOnIdent (_,id) -> pr_id id + | ElimOnAnonHyp n -> int n + +let pr_match_pattern = function + | Term a -> pr_pattern a + | Subterm (None,a) -> str "[" ++ pr_pattern a ++ str "]" + | Subterm (Some id,a) -> pr_id id ++ str "[" ++ pr_pattern a ++ str "]" + +let pr_match_hyps = function + | NoHypId mp -> str "_:" ++ pr_match_pattern mp + | Hyp ((_,id),mp) -> pr_id id ++ str ":" ++ pr_match_pattern mp + +let pr_match_rule m pr = function + | Pat ([],mp,t) when m -> + str "[" ++ pr_match_pattern mp ++ str "]" + ++ spc () ++ str "->" ++ brk (1,2) ++ pr t + | Pat (rl,mp,t) -> + str "[" ++ prlist_with_sep pr_semicolon pr_match_hyps rl ++ spc () ++ + str "|-" ++ spc () ++ pr_match_pattern mp ++ spc () ++ str "]" ++ + spc () ++ str "->" ++ brk (1,2) ++ pr t + | All t -> str "_" ++ spc () ++ str "->" ++ brk (1,2) ++ pr t + +let pr_funvar = function + | None -> spc () ++ str "()" + | Some id -> spc () ++ pr_id id + +let pr_let_clause k pr = function + | ((_,id),None,t) -> hv 0(str k ++ pr_id id ++ str " =" ++ brk (1,1) ++ pr t) + | ((_,id),Some c,t) -> str "TODO(LETCLAUSE)" + +let pr_let_clauses pr = function + | hd::tl -> + hv 0 + (pr_let_clause "Let " pr hd ++ spc () ++ + prlist_with_sep spc (pr_let_clause "And " pr) tl) + | [] -> anomaly "LetIn must declare at least one binding" + +let pr_rec_clause pr ((_,id),(l,t)) = + pr_id id ++ prlist pr_funvar l ++ str "->" ++ spc () ++ pr t + +let pr_rec_clauses pr l = + prlist_with_sep (fun () -> fnl () ++ str "And ") (pr_rec_clause pr) l + +let pr_hintbases = function + | None -> spc () ++ str "with *" + | Some [] -> mt () + | Some l -> + spc () ++ str "with" ++ hv 0 (prlist (fun s -> spc () ++ str s) l) + +let pr_autoarg_adding = function + | [] -> mt () + | l -> + spc () ++ str "Adding [" ++ + hv 0 (prlist_with_sep spc (fun (_,x) -> pr_qualid x) l) ++ str "]" + +let pr_autoarg_destructing = function + | true -> spc () ++ str "Destructing" + | false -> mt () + +let pr_autoarg_usingTDB = function + | true -> spc () ++ str "Using TDB" + | false -> mt () + +let rec pr_rawgen prtac x = + match Genarg.genarg_tag x with + | BoolArgType -> pr_arg str (if out_gen rawwit_bool x then "true" else "false") + | IntArgType -> pr_arg int (out_gen rawwit_int x) + | IntOrVarArgType -> pr_arg (pr_or_var pr_int) (out_gen rawwit_int_or_var x) + | StringArgType -> spc () ++ str "\"" ++ str (out_gen rawwit_string x) ++ str "\"" + | PreIdentArgType -> pr_arg str (out_gen rawwit_pre_ident x) + | IdentArgType -> pr_arg pr_id (out_gen rawwit_ident x) + | QualidArgType -> pr_arg pr_qualid (snd (out_gen rawwit_qualid x)) + | ConstrArgType -> pr_arg pr_constr (out_gen rawwit_constr x) + | ConstrMayEvalArgType -> + pr_arg (pr_may_eval pr_constr) (out_gen rawwit_constr_may_eval x) + | QuantHypArgType -> + pr_arg pr_quantified_hypothesis (out_gen rawwit_quant_hyp x) + | RedExprArgType -> + pr_arg (pr_red_expr (pr_constr,pr_metanum pr_qualid)) (out_gen rawwit_red_expr x) + | TacticArgType -> pr_arg prtac (out_gen rawwit_tactic x) + | CastedOpenConstrArgType -> + pr_arg pr_casted_open_constr (out_gen rawwit_casted_open_constr x) + | ConstrWithBindingsArgType -> + pr_arg (pr_with_bindings pr_constr) + (out_gen rawwit_constr_with_bindings x) + | List0ArgType _ -> + hov 0 (fold_list0 (fun x a -> pr_rawgen prtac x ++ a) x (mt())) + | List1ArgType _ -> + hov 0 (fold_list1 (fun x a -> pr_rawgen prtac x ++ a) x (mt())) + | OptArgType _ -> hov 0 (fold_opt (pr_rawgen prtac) (mt()) x) + | PairArgType _ -> + hov 0 + (fold_pair + (fun a b -> pr_rawgen prtac a ++ spc () ++ pr_rawgen prtac b) + x) + | ExtraArgType s -> + try fst (Stringmap.find s !genarg_pprule) x + with Not_found -> str " [no printer for " ++ str s ++ str "] " + +let rec pr_raw_tacarg_using_rule pr_gen = function + | Egrammar.TacTerm s :: l, al -> str s ++ pr_raw_tacarg_using_rule pr_gen (l,al) + | Egrammar.TacNonTerm _ :: l, a :: al -> pr_gen a ++ pr_raw_tacarg_using_rule pr_gen (l,al) + | [], [] -> mt () + | _ -> failwith "Inconsistent arguments of extended tactic" + +let pr_raw_extend prt s l = + try + let (s,pl) = fst (Hashtbl.find prtac_tab s) l in + str s ++ pr_raw_tacarg_using_rule (pr_rawgen prt) (pl,l) + with Not_found -> + str "TODO(" ++ str s ++ prlist (pr_rawgen prt) l ++ str ")" + +open Closure + +let pr_evaluable_reference = function + | EvalVarRef id -> pr_id id + | EvalConstRef sp -> pr_global (Nametab.ConstRef sp) + +let pr_inductive ind = pr_global (Nametab.IndRef ind) + +let rec pr_generic prtac x = + match Genarg.genarg_tag x with + | BoolArgType -> pr_arg str (if out_gen wit_bool x then "true" else "false") + | IntArgType -> pr_arg int (out_gen wit_int x) + | IntOrVarArgType -> pr_arg (pr_or_var pr_int) (out_gen wit_int_or_var x) + | StringArgType -> spc () ++ str "\"" ++ str (out_gen wit_string x) ++ str "\"" + | PreIdentArgType -> pr_arg str (out_gen wit_pre_ident x) + | IdentArgType -> pr_arg pr_id (out_gen wit_ident x) + | QualidArgType -> pr_arg pr_global (out_gen wit_qualid x) + | ConstrArgType -> pr_arg Printer.prterm (out_gen wit_constr x) + | ConstrMayEvalArgType -> + pr_arg Printer.prterm (out_gen wit_constr_may_eval x) + | QuantHypArgType -> + pr_arg pr_quantified_hypothesis (out_gen wit_quant_hyp x) + | RedExprArgType -> + pr_arg (pr_red_expr (Printer.prterm,pr_evaluable_reference)) (out_gen wit_red_expr x) + | TacticArgType -> pr_arg prtac (out_gen wit_tactic x) + | CastedOpenConstrArgType -> + pr_arg Printer.prterm (snd (out_gen wit_casted_open_constr x)) + | ConstrWithBindingsArgType -> + pr_arg (pr_with_bindings Printer.prterm) + (out_gen wit_constr_with_bindings x) + | List0ArgType _ -> + hov 0 (fold_list0 (fun x a -> pr_generic prtac x ++ a) x (mt())) + | List1ArgType _ -> + hov 0 (fold_list1 (fun x a -> pr_generic prtac x ++ a) x (mt())) + | OptArgType _ -> hov 0 (fold_opt (pr_generic prtac) (mt()) x) + | PairArgType _ -> + hov 0 + (fold_pair + (fun a b -> pr_generic prtac a ++ spc () ++ pr_generic prtac b) + x) + | ExtraArgType s -> + try snd (Stringmap.find s !genarg_pprule) x + with Not_found -> str "[no printer for " ++ str s ++ str "]" + +let rec pr_tacarg_using_rule prt = function + | Egrammar.TacTerm s :: l, al -> str s ++ pr_tacarg_using_rule prt (l,al) + | Egrammar.TacNonTerm _ :: l, a :: al -> pr_generic prt a ++ pr_tacarg_using_rule prt (l,al) + | [], [] -> mt () + | _ -> failwith "Inconsistent arguments of extended tactic" + +let pr_extend prt s l = + try + let (s,pl) = snd (Hashtbl.find prtac_tab s) l in + str s ++ pr_tacarg_using_rule prt (pl,l) + with Not_found -> + str s ++ prlist (pr_generic prt) l + +let make_pr_tac (pr_constr,pr_cst,pr_ind,pr_ident,pr_extend) = + +let pr_bindings = pr_bindings pr_constr in +let pr_with_bindings = pr_with_bindings pr_constr in +let pr_constrarg c = spc () ++ pr_constr c in +let pr_intarg n = spc () ++ int n in + + (* Printing tactics as arguments *) +let rec pr_atom0 = function + | TacIntroPattern [] -> str "Intros" + | TacIntroMove (None,None) -> str "Intro" + | TacAssumption -> str "Assumption" + | TacAnyConstructor None -> str "Constructor" + | TacTrivial (Some []) -> str "Trivial" + | TacAuto (None,Some []) -> str "Auto" + | TacAutoTDB None -> str "AutoTDB" + | TacDestructConcl -> str "DConcl" + | TacReflexivity -> str "Reflexivity" + | TacSymmetry -> str "Symmetry" + | t -> str "(" ++ pr_atom1 t ++ str ")" + + (* Main tactic printer *) +and pr_atom1 = function + | TacExtend (s,l) -> pr_extend !pr_rawtac s l + | TacAlias (s,l,_) -> pr_extend !pr_rawtac s (List.map snd l) + + (* Basic tactics *) + | TacIntroPattern [] as t -> pr_atom0 t + | TacIntroPattern (_::_ as p) -> + hov 1 (str "Intro" ++ spc () ++ prlist_with_sep spc pr_intro_pattern p) + | TacIntrosUntil h -> + hv 1 (str "Intros until" ++ pr_arg pr_quantified_hypothesis h) + | TacIntroMove (None,None) as t -> pr_atom0 t + | TacIntroMove (Some id1,None) -> str "Intro " ++ pr_id id1 + | TacIntroMove (ido1,Some (_,id2)) -> + hov 1 + (str "Intro" ++ pr_opt pr_id ido1 ++ spc () ++ str "after " ++ pr_id id2) + | TacAssumption as t -> pr_atom0 t + | TacExact c -> hov 1 (str "Exact" ++ pr_arg pr_constr c) + | TacApply cb -> hov 1 (str "Apply" ++ spc () ++ pr_with_bindings cb) + | TacElim (cb,None) -> hov 1 (str "Elim" ++ spc () ++ pr_with_bindings cb) + | TacElim (cb,Some cb') -> + hov 1 (str "Elim" ++ pr_arg pr_with_bindings cb ++ + spc () ++ str "using" ++ pr_arg pr_with_bindings cb') + | TacElimType c -> hov 1 (str "ElimType" ++ pr_arg pr_constr c) + | TacCase cb -> hov 1 (str "Case" ++ spc () ++ pr_with_bindings cb) + | TacCaseType c -> hov 1 (str "CaseType" ++ pr_arg pr_constr c) + | TacFix (ido,n) -> hov 1 (str "Fix" ++ pr_opt pr_id ido ++ pr_intarg n) + | TacMutualFix (id,n,l) -> + hov 1 (str "Cofix" ++ spc () ++ pr_id id ++ pr_intarg n ++ spc () ++ + hov 0 (str "with" ++ brk (1,1) ++ + prlist_with_sep spc + (fun (id,n,c) -> + spc () ++ pr_id id ++ pr_intarg n ++ pr_arg pr_constr c) + l)) + | TacCofix ido -> hov 1 (str "Cofix" ++ pr_opt pr_id ido) + | TacMutualCofix (id,l) -> + hov 1 (str "Cofix" ++ spc () ++ pr_id id ++ spc () ++ + hov 0 (str "with" ++ brk (1,1) ++ + prlist (fun (id,c) -> spc () ++ pr_id id ++ pr_arg pr_constr c) + l)) + | TacCut c -> hov 1 (str "Cut" ++ pr_arg pr_constr c) + | TacTrueCut (None,c) -> + hov 1 (str "Assert" ++ pr_arg pr_constr c) + | TacTrueCut (Some id,c) -> + hov 1 (str "Assert" ++ spc () ++ pr_id id ++ str ":" ++ pr_constr c) + | TacForward (false,na,c) -> + hov 1 (str "Assert" ++ pr_name na ++ str ":=" ++ pr_constr c) + | TacForward (true,na,c) -> + hov 1 (str "Pose" ++ pr_name na ++ str ":=" ++ pr_constr c) + | TacGeneralize l -> + hov 0 (str "Generalize" ++ brk (1,1) ++ prlist_with_sep spc pr_constr l) + | TacGeneralizeDep c -> + hov 1 (str "Generalize" ++ spc () ++ str "Dependent" ++ spc () ++ + pr_constr c) + | TacLetTac (id,c,cl) -> + hov 1 (str "LetTac" ++ spc () ++ pr_id id ++ str ":=" ++ + pr_constr c ++ pr_clause_pattern pr_ident cl) + | TacInstantiate (n,c) -> + hov 1 (str "Instantiate" ++ pr_arg int n ++ pr_arg pr_constr c) + + (* Derived basic tactics *) + | TacOldInduction h -> + hov 1 (str "Induction" ++ pr_arg pr_quantified_hypothesis h) + | TacNewInduction h -> + hov 1 (str "NewInduction" ++ spc () ++ pr_induction_arg pr_constr h) + | TacOldDestruct h -> + hov 1 (str "Destruct" ++ pr_arg pr_quantified_hypothesis h) + | TacNewDestruct h -> + hov 1 (str "NewDestruct" ++ spc () ++ pr_induction_arg pr_constr h) + | TacDoubleInduction (h1,h2) -> + hov 1 + (str "Double Induction" ++ + pr_arg pr_quantified_hypothesis h1 ++ + pr_arg pr_quantified_hypothesis h2) + | TacDecomposeAnd c -> + hov 1 (str "Decompose Record" ++ pr_arg pr_constr c) + | TacDecomposeOr c -> + hov 1 (str "Decompose Sum" ++ pr_arg pr_constr c) + | TacDecompose (l,c) -> + hov 1 (str "Decompose" ++ spc () ++ + hov 0 (str "[" ++ prlist_with_sep spc (pr_metanum pr_ind) l + ++ str "]")) + | TacSpecialize (n,c) -> + hov 1 (str "Specialize" ++ pr_opt int n ++ pr_with_bindings c) + | TacLApply c -> + hov 1 (str "LApply" ++ pr_constr c) + + (* Automation tactics *) + | TacTrivial (Some []) as x -> pr_atom0 x + | TacTrivial db -> hov 0 (str "Trivial" ++ pr_hintbases db) + | TacAuto (None,Some []) as x -> pr_atom0 x + | TacAuto (n,db) -> hov 0 (str "Auto" ++ pr_opt int n ++ pr_hintbases db) + | TacAutoTDB None as x -> pr_atom0 x + | TacAutoTDB (Some n) -> hov 0 (str "AutoTDB" ++ spc () ++ int n) + | TacDestructHyp (true,(_,id)) -> hov 0 (str "CDHyp" ++ spc () ++ pr_id id) + | TacDestructHyp (false,(_,id)) -> hov 0 (str "DHyp" ++ spc () ++ pr_id id) + | TacDestructConcl as x -> pr_atom0 x + | TacSuperAuto (n,l,b1,b2) -> + hov 0 (str "SuperAuto" ++ pr_opt int n ++ pr_autoarg_adding l ++ + pr_autoarg_destructing b1 ++ pr_autoarg_usingTDB b2) + | TacDAuto (n,p) -> + hov 0 (str "Auto" ++ pr_opt int n ++ str "Decomp" ++ pr_opt int p) + + (* Context management *) + | TacClear l -> + hov 0 + (str "Clear" ++ brk (1,1) ++ prlist_with_sep spc (pr_metanum pr_id) l) + | TacClearBody l -> + hov 0 + (str "Clear" ++ brk (1,1) ++ prlist_with_sep spc (pr_metanum pr_id) l) + | TacMove (b,(_,id1),(_,id2)) -> + (* Rem: only b = true is available for users *) + assert b; + hov 1 + (str "Move" ++ brk (1,1) ++ pr_id id1 ++ spc () ++ + str "after" ++ brk (1,1) ++ pr_id id2) + | TacRename ((_,id1),(_,id2)) -> + hov 1 + (str "Rename" ++ brk (1,1) ++ pr_id id1 ++ spc () ++ + str "into" ++ brk (1,1) ++ pr_id id2) + + (* Constructors *) + | TacLeft l -> hov 1 (str "Left" ++ pr_bindings l) + | TacRight l -> hov 1 (str "Right" ++ pr_bindings l) + | TacSplit l -> hov 1 (str "Split" ++ pr_bindings l) + | TacAnyConstructor (Some t) -> + hov 1 (str "Constructor" ++ pr_arg !pr_rawtac0 t) + | TacAnyConstructor None as t -> pr_atom0 t + | TacConstructor (n,l) -> + hov 1 (str "Constructor" ++ pr_or_meta pr_intarg n ++ pr_bindings l) + + (* Conversion *) + | TacReduce (r,h) -> + hov 1 (pr_red_expr (pr_constr,pr_cst) r ++ pr_clause pr_ident h) + | TacChange (c,h) -> + hov 1 (str "Change" ++ brk (1,1) ++ pr_constr c ++ pr_clause pr_ident h) + + (* Equivalence relations *) + | (TacReflexivity | TacSymmetry) as x -> pr_atom0 x + | TacTransitivity c -> str "Transitivity" ++ pr_arg pr_constr c + +and pr_tactic_seq_body tl = + hv 0 (str "[ " ++ + prlist_with_sep (fun () -> spc () ++ str "| ") prtac tl ++ str " ]") + + (* Strictly closed atomic tactic expressions *) +and pr0 = function + | TacFirst tl -> str "First" ++ spc () ++ pr_tactic_seq_body tl + | TacSolve tl -> str "Solve" ++ spc () ++ pr_tactic_seq_body tl + | TacId -> str "Idtac" + | TacFail 0 -> str "Fail" + | TacAtom (_,t) -> pr_atom0 t + | TacArg c -> pr_tacarg c + | t -> str "(" ++ prtac t ++ str ")" + + (* Semi-closed atomic tactic expressions *) +and pr1 = function + | TacAtom (_,t) -> pr_atom1 t + | TacFail n -> str "Fail " ++ int n + | t -> pr0 t + + (* Orelse tactic expressions (printed as if parsed associating on the right + though the semantics is purely associative) *) +and pr2 = function + | TacOrelse (t1,t2) -> + hov 1 (pr1 t1 ++ str " Orelse" ++ brk (1,1) ++ pr3 t2) + | t -> pr1 t + + (* Non closed prefix tactic expressions *) +and pr3 = function + | TacTry t -> hov 1 (str "Try" ++ spc () ++ pr3 t) + | TacDo (n,t) -> hov 1 (str "Do " ++ int n ++ spc () ++ pr3 t) + | TacRepeat t -> hov 1 (str "Repeat" ++ spc () ++ pr3 t) + | TacProgress t -> hov 1 (str "Progress" ++ spc () ++ pr3 t) + | TacInfo t -> hov 1 (str "Info" ++ spc () ++ pr3 t) + | t -> pr2 t + +and pr4 = function + | t -> pr3 t + + (* THEN and THENS tactic expressions (printed as if parsed + associating on the left though the semantics is purely associative) *) +and pr5 = function + | TacThens (t,tl) -> + hov 1 (pr5 t ++ str ";" ++ spc () ++ pr_tactic_seq_body tl) + | TacThen (t1,t2) -> + hov 1 (pr5 t1 ++ str ";" ++ spc () ++ pr4 t2) + | t -> pr4 t + + (* Ltac tactic expressions *) +and pr6 = function + |(TacAtom _ + | TacThen _ + | TacThens _ + | TacFirst _ + | TacSolve _ + | TacTry _ + | TacOrelse _ + | TacDo _ + | TacRepeat _ + | TacProgress _ + | TacId + | TacFail _ + | TacInfo _) as t -> pr5 t + + | TacAbstract (t,None) -> str "Abstract " ++ pr6 t + | TacAbstract (t,Some s) -> + hov 0 + (str "Abstract " ++ pr6 t ++ spc () ++ str "using" ++ spc () ++ pr_id s) + | TacLetRecIn (l,t) -> + hv 0 + (str "Rec " ++ pr_rec_clauses prtac l ++ + spc () ++ str "In" ++ fnl () ++ prtac t) + | TacLetIn (llc,u) -> + v 0 + (hv 0 (pr_let_clauses pr_tacarg0 llc ++ spc () ++ str "In") ++ fnl () ++ prtac u) + | TacLetCut llc -> + pr_let_clauses pr_tacarg0 + (List.map (fun (id,c,t) -> ((dummy_loc,id),Some c,t)) llc) + ++ fnl () + | TacMatch (t,lrul) -> + hov 0 (str "Match" ++ spc () ++ pr_may_eval Ppconstr.pr_constr t ++ spc() + ++ str "With" + ++ prlist + (fun r -> fnl () ++ str "|" ++ spc () ++ pr_match_rule true prtac r) + lrul) + | TacMatchContext (lr,lrul) -> + hov 0 ( + str (if lr then "Match Reverse Context With" else "Match Context With") + ++ prlist + (fun r -> fnl () ++ str "|" ++ spc () ++ pr_match_rule false prtac r) + lrul) + | TacFun (lvar,body) -> + hov 0 (str "Fun" ++ + prlist pr_funvar lvar ++ spc () ++ str "->" ++ spc () ++ prtac body) + | TacFunRec t -> + hov 0 (str "Rec " ++ pr_rec_clause prtac t) + + | TacArg c -> pr_tacarg c + +and pr_tacarg0 = function + | TacDynamic (_,t) -> str ("<dynamic ["^(Dyn.tag t)^"]>") + | MetaNumArg (_,n) -> str ("?" ^ string_of_int n ) + | MetaIdArg (_,s) -> str ("$" ^ s) + | TacVoid -> str "()" + | Reference (RQualid (_,qid)) -> pr_qualid qid + | Reference (RIdent (_,id)) -> pr_id id + | ConstrMayEval (ConstrTerm c) -> str "'" ++ pr_constr c + | ConstrMayEval c -> pr_may_eval pr_constr c + | Integer n -> int n +(* + | Tac of + 'c * (Coqast.t,qualid or_metanum, identifier or_metaid) gen_tactic_expr +*) + | (TacCall _ | Tacexp _) as t -> str "(" ++ pr_tacarg1 t ++ str ")" + +and pr_tacarg1 = function + | TacCall (_,f,l) -> + hov 0 (pr_tacarg0 f ++ spc () ++ prlist_with_sep spc pr_tacarg0 l) + | Tacexp t -> !pr_rawtac t + | t -> pr_tacarg0 t + +and pr_tacarg x = pr_tacarg1 x + +and prtac x = pr6 x + +in (prtac,pr0,pr_match_rule) + +let (pr_raw_tactic,pr_raw_tactic0,pr_match_rule) = + make_pr_tac + (Ppconstr.pr_constr, + pr_metanum pr_qualid, + pr_qualid, + pr_or_meta (fun (loc,id) -> pr_id id), + pr_raw_extend) + +let _ = pr_rawtac := pr_raw_tactic +let _ = pr_rawtac0 := pr_raw_tactic0 + +let (pr_tactic,_,_) = + make_pr_tac + (Printer.prterm, + pr_evaluable_reference, + pr_inductive, + pr_id, + pr_extend) |