[api] [parsing] Move Egram* to `vernac/`

The extension mechanism is specific to metasyntax and vernacinterp,
thus it makes sense to place them next to each other.

We also fix the META entry for the `grammar` camlp5 plugin.

3 files changed, 0 insertions, 1246 deletions

diff --git a/printing/ppvernac.ml b/printing/ppvernac.ml
deleted file mode 100644
index 7a34e8027..000000000
--- a/printing/ppvernac.ml
+++ /dev/null
@@ -1,1219 +0,0 @@
-(************************************************************************)
-(*         *   The Coq Proof Assistant / The Coq Development Team       *)
-(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
-(* <O___,, *       (see CREDITS file for the list of authors)           *)
-(*   \VV/  **************************************************************)
-(*    //   *    This file is distributed under the terms of the         *)
-(*         *     GNU Lesser General Public License Version 2.1          *)
-(*         *     (see LICENSE file for the text of the license)         *)
-(************************************************************************)
-
-open Pp
-open Names
-
-open CErrors
-open Util
-open CAst
-
-open Extend
-open Libnames
-open Decl_kinds
-open Constrexpr
-open Constrexpr_ops
-open Vernacexpr
-open Declaremods
-open Pputils
-
-  open Ppconstr
-
-  let do_not_tag _ x = x
-  let tag_keyword = do_not_tag ()
-  let tag_vernac  = do_not_tag
-
-  let keyword s = tag_keyword (str s)
-
-  let pr_constr = pr_constr_expr
-  let pr_lconstr = pr_lconstr_expr
-  let pr_spc_lconstr = pr_sep_com spc pr_lconstr_expr
-
-  let pr_uconstraint (l, d, r) =
-    pr_glob_level l ++ spc () ++ Univ.pr_constraint_type d ++ spc () ++
-      pr_glob_level r
-
-  let pr_univ_name_list = function
-    | None -> mt ()
-    | Some l ->
-      str "@{" ++ prlist_with_sep spc pr_lname l ++ str"}"
-
-  let pr_univdecl_instance l extensible =
-    prlist_with_sep spc pr_lident l ++
-    (if extensible then str"+" else mt ())
-
-  let pr_univdecl_constraints l extensible =
-    if List.is_empty l && extensible then mt ()
-    else str"|" ++ spc () ++ prlist_with_sep (fun () -> str",") pr_uconstraint l ++
-           (if extensible then str"+" else mt())
-
-  let pr_universe_decl l =
-    let open Misctypes in
-    match l with
-    | None -> mt ()
-    | Some l ->
-      str"@{" ++ pr_univdecl_instance l.univdecl_instance l.univdecl_extensible_instance ++
-        pr_univdecl_constraints l.univdecl_constraints l.univdecl_extensible_constraints ++ str "}"
-
-  let pr_ident_decl (lid, l) =
-    pr_lident lid ++ pr_universe_decl l
-
-  let string_of_fqid fqid =
-    String.concat "." (List.map Id.to_string fqid)
-
-  let pr_fqid fqid = str (string_of_fqid fqid)
-
-  let pr_lfqid {CAst.loc;v=fqid} =
-    match loc with
-    | None     -> pr_fqid fqid
-    | Some loc -> let (b,_) = Loc.unloc loc in
-                  pr_located pr_fqid @@ Loc.tag ~loc:(Loc.make_loc (b,b + String.length (string_of_fqid fqid))) fqid
-
-  let pr_lname_decl (n, u) =
-    pr_lname n ++ pr_universe_decl u
-
-  let pr_smart_global = Pputils.pr_or_by_notation pr_reference
-
-  let pr_ltac_ref = Libnames.pr_reference
-
-  let pr_module = Libnames.pr_reference
-
-  let pr_import_module = Libnames.pr_reference
-
-  let sep_end = function
-    | VernacBullet _
-    | VernacSubproof _
-    | VernacEndSubproof -> str""
-    | _ -> str"."
-
-  let pr_gen t = Pputils.pr_raw_generic (Global.env ()) t
-
-  let sep = fun _ -> spc()
-  let sep_v2 = fun _ -> str"," ++ spc()
-
-  let pr_at_level = function
-    | NumLevel n -> keyword "at" ++ spc () ++ keyword "level" ++ spc () ++ int n
-    | NextLevel -> keyword "at" ++ spc () ++ keyword "next" ++ spc () ++ keyword "level"
-
-  let pr_constr_as_binder_kind = function
-    | AsIdent -> keyword "as ident"
-    | AsIdentOrPattern -> keyword "as pattern"
-    | AsStrictPattern -> keyword "as strict pattern"
-
-  let pr_strict b = if b then str "strict " else mt ()
-
-  let pr_set_entry_type pr = function
-    | ETName -> str"ident"
-    | ETReference -> str"global"
-    | ETPattern (b,None) -> pr_strict b ++ str"pattern"
-    | ETPattern (b,Some n) -> pr_strict b ++ str"pattern" ++ spc () ++ pr_at_level (NumLevel n)
-    | ETConstr lev -> str"constr" ++ pr lev
-    | ETOther (_,e) -> str e
-    | ETConstrAsBinder (bk,lev) -> pr lev ++ spc () ++ pr_constr_as_binder_kind bk
-    | ETBigint -> str "bigint"
-    | ETBinder true -> str "binder"
-    | ETBinder false -> str "closed binder"
-
-  let pr_at_level_opt = function
-    | None -> mt ()
-    | Some n -> spc () ++ pr_at_level n
-
-  let pr_set_simple_entry_type =
-    pr_set_entry_type pr_at_level_opt
-
-  let pr_comment pr_c = function
-    | CommentConstr c -> pr_c c
-    | CommentString s -> qs s
-    | CommentInt n -> int n
-
-  let pr_in_out_modules = function
-    | SearchInside l -> spc() ++ keyword "inside" ++ spc() ++ prlist_with_sep sep pr_module l
-    | SearchOutside [] -> mt()
-    | SearchOutside l -> spc() ++ keyword "outside" ++ spc() ++ prlist_with_sep sep pr_module l
-
-  let pr_search_about (b,c) =
-    (if b then str "-" else mt()) ++
-      match c with
-        | SearchSubPattern p -> pr_constr_pattern_expr p
-        | SearchString (s,sc) -> qs s ++ pr_opt (fun sc -> str "%" ++ str sc) sc
-
-  let pr_search a gopt b pr_p =
-    pr_opt (fun g -> Goal_select.pr_goal_selector g ++ str ":"++ spc()) gopt
-    ++
-      match a with
-      | SearchHead c -> keyword "SearchHead" ++ spc() ++ pr_p c ++ pr_in_out_modules b
-      | SearchPattern c -> keyword "SearchPattern" ++ spc() ++ pr_p c ++ pr_in_out_modules b
-      | SearchRewrite c -> keyword "SearchRewrite" ++ spc() ++ pr_p c ++ pr_in_out_modules b
-      | SearchAbout sl ->
-	 keyword "Search" ++ spc() ++ prlist_with_sep spc pr_search_about sl ++ pr_in_out_modules b
-
-  let pr_locality local = if local then keyword "Local" else keyword "Global"
-
-  let pr_option_ref_value = function
-    | QualidRefValue id -> pr_reference id
-    | StringRefValue s -> qs s
-
-  let pr_printoption table b =
-    prlist_with_sep spc str table ++
-      pr_opt (prlist_with_sep sep pr_option_ref_value) b
-
-  let pr_set_option a b =
-    let pr_opt_value = function
-      | IntValue None -> assert false
-    (* This should not happen because of the grammar *)
-      | IntValue (Some n) -> spc() ++ int n
-      | StringValue s -> spc() ++ str s
-      | StringOptValue None -> mt()
-      | StringOptValue (Some s) -> spc() ++ str s
-      | BoolValue b -> mt()
-    in pr_printoption a None ++ pr_opt_value b
-
-  let pr_opt_hintbases l = match l with
-    | [] -> mt()
-    | _ as z -> str":" ++ spc() ++ prlist_with_sep sep str z
-
-  let pr_reference_or_constr pr_c = function
-    | HintsReference r -> pr_reference r
-    | HintsConstr c -> pr_c c
-
-  let pr_hint_mode = function
-    | ModeInput -> str"+"
-    | ModeNoHeadEvar -> str"!"
-    | ModeOutput -> str"-"
-
-  let pr_hint_info pr_pat { Typeclasses.hint_priority = pri; hint_pattern = pat } =
-    pr_opt (fun x -> str"|" ++ int x) pri ++
-    pr_opt (fun y -> (if Option.is_empty pri then str"| " else mt()) ++ pr_pat y) pat
-
-  let pr_hints db h pr_c pr_pat =
-    let opth = pr_opt_hintbases db  in
-    let pph =
-      match h with
-        | HintsResolve l ->
-          keyword "Resolve " ++ prlist_with_sep sep
-            (fun (info, _, c) -> pr_reference_or_constr pr_c c ++ pr_hint_info pr_pat info)
-            l
-        | HintsImmediate l ->
-          keyword "Immediate" ++ spc() ++
-            prlist_with_sep sep (fun c -> pr_reference_or_constr pr_c c) l
-        | HintsUnfold l ->
-          keyword "Unfold" ++ spc () ++ prlist_with_sep sep pr_reference l
-        | HintsTransparency (l, b) ->
-          keyword (if b then "Transparent" else "Opaque")
-          ++ spc ()
-          ++ prlist_with_sep sep pr_reference l
-        | HintsMode (m, l) ->
-          keyword "Mode"
-          ++ spc ()
-          ++ pr_reference m ++ spc() ++
-            prlist_with_sep spc pr_hint_mode l
-        | HintsConstructors c ->
-          keyword "Constructors"
-          ++ spc() ++ prlist_with_sep spc pr_reference c
-        | HintsExtern (n,c,tac) ->
-          let pat = match c with None -> mt () | Some pat -> pr_pat pat in
-          keyword "Extern" ++ spc() ++ int n ++ spc() ++ pat ++ str" =>" ++
-            spc() ++ Pputils.pr_raw_generic (Global.env ()) tac
-    in
-    hov 2 (keyword "Hint "++ pph ++ opth)
-
-  let pr_with_declaration pr_c = function
-    | CWith_Definition (id,udecl,c) ->
-      let p = pr_c c in
-      keyword "Definition" ++ spc() ++ pr_lfqid id ++ pr_universe_decl udecl ++ str" := " ++ p
-    | CWith_Module (id,qid) ->
-      keyword "Module" ++ spc() ++ pr_lfqid id ++ str" := " ++
-        pr_ast pr_qualid qid
-
-  let rec pr_module_ast leading_space pr_c = function
-    | { loc ; v = CMident qid } ->
-      if leading_space then
-        spc () ++ pr_located pr_qualid (loc, qid)
-      else
-        pr_located pr_qualid (loc,qid)
-    | { v = CMwith (mty,decl) } ->
-      let m = pr_module_ast leading_space pr_c mty in
-      let p = pr_with_declaration pr_c decl in
-      m ++ spc() ++ keyword "with" ++ spc() ++ p
-    | { v = CMapply (me1, ( { v = CMident _ } as me2 ) ) } ->
-      pr_module_ast leading_space pr_c me1 ++ spc() ++ pr_module_ast false pr_c me2
-    | { v = CMapply (me1,me2) } ->
-      pr_module_ast leading_space pr_c me1 ++ spc() ++
-        hov 1 (str"(" ++ pr_module_ast false pr_c me2 ++ str")")
-
-  let pr_inline = function
-    | DefaultInline -> mt ()
-    | NoInline -> str "[no inline]"
-    | InlineAt i -> str "[inline at level " ++ int i ++ str "]"
-
-  let pr_assumption_inline = function
-    | DefaultInline -> str "Inline"
-    | NoInline -> mt ()
-    | InlineAt i -> str "Inline(" ++ int i ++ str ")"
-
-  let pr_module_ast_inl leading_space pr_c (mast,inl) =
-    pr_module_ast leading_space pr_c mast ++ pr_inline inl
-
-  let pr_of_module_type prc = function
-    | Enforce mty -> str ":" ++ pr_module_ast_inl true prc mty
-    | Check mtys ->
-      prlist_strict (fun m -> str "<:" ++ pr_module_ast_inl true prc m) mtys
-
-  let pr_require_token = function
-    | Some true ->
-      keyword "Export" ++ spc ()
-    | Some false ->
-      keyword "Import" ++ spc ()
-    | None -> mt()
-
-  let pr_module_vardecls pr_c (export,idl,(mty,inl)) =
-    let m = pr_module_ast true pr_c mty in
-    spc() ++
-      hov 1 (str"(" ++ pr_require_token export ++
-               prlist_with_sep spc pr_lident idl ++ str":" ++ m ++ str")")
-
-  let pr_module_binders l pr_c =
-    prlist_strict (pr_module_vardecls pr_c) l
-
-  let pr_type_option pr_c = function
-    | { v = CHole (k, Misctypes.IntroAnonymous, _) } -> mt()
-    | _ as c -> brk(0,2) ++ str" :" ++ pr_c c
-
-  let pr_decl_notation prc ({loc; v=ntn},c,scopt) =
-    fnl () ++ keyword "where " ++ qs ntn ++ str " := "
-    ++ Flags.without_option Flags.beautify prc c ++
-      pr_opt (fun sc -> str ": " ++ str sc) scopt
-
-  let pr_binders_arg =
-    pr_non_empty_arg pr_binders
-
-  let pr_and_type_binders_arg bl =
-    pr_binders_arg bl
-
-  let pr_onescheme (idop,schem) =
-    match schem with
-      | InductionScheme (dep,ind,s) ->
-        (match idop with
-          | Some id -> hov 0 (pr_lident id ++ str" :=") ++ spc()
-          | None -> spc ()
-        ) ++
-          hov 0 ((if dep then keyword "Induction for" else keyword "Minimality for")
-                 ++ spc() ++ pr_smart_global ind) ++ spc() ++
-          hov 0 (keyword "Sort" ++ spc() ++ Termops.pr_sort_family s)
-      | CaseScheme (dep,ind,s) ->
-        (match idop with
-          | Some id -> hov 0 (pr_lident id ++ str" :=") ++ spc()
-          | None -> spc ()
-        ) ++
-          hov 0 ((if dep then keyword "Elimination for" else keyword "Case for")
-                 ++ spc() ++ pr_smart_global ind) ++ spc() ++
-          hov 0 (keyword "Sort" ++ spc() ++ Termops.pr_sort_family s)
-      | EqualityScheme ind ->
-        (match idop with
-          | Some id -> hov 0 (pr_lident id ++ str" :=") ++ spc()
-          | None -> spc()
-        ) ++
-          hov 0 (keyword "Equality for")
-        ++ spc() ++ pr_smart_global ind
-
-  let begin_of_inductive = function
-    | [] -> 0
-    | (_,({loc},_))::_ -> Option.cata (fun loc -> fst (Loc.unloc loc)) 0 loc
-
-  let pr_class_rawexpr = function
-    | FunClass -> keyword "Funclass"
-    | SortClass -> keyword "Sortclass"
-    | RefClass qid -> pr_smart_global qid
-
-  let pr_assumption_token many discharge kind =
-    match discharge, kind with
-      | (NoDischarge,Logical) ->
-        keyword (if many then "Axioms" else "Axiom")
-      | (NoDischarge,Definitional) ->
-        keyword (if many then "Parameters" else "Parameter")
-      | (NoDischarge,Conjectural) -> str"Conjecture"
-      | (DoDischarge,Logical) ->
-        keyword (if many then "Hypotheses" else "Hypothesis")
-      | (DoDischarge,Definitional) ->
-        keyword (if many then "Variables" else "Variable")
-      | (DoDischarge,Conjectural) ->
-        anomaly (Pp.str "Don't know how to beautify a local conjecture.")
-
-  let pr_params pr_c (xl,(c,t)) =
-    hov 2 (prlist_with_sep sep pr_lident xl ++ spc() ++
-             (if c then str":>" else str":" ++
-                 spc() ++ pr_c t))
-
-  let rec factorize = function
-    | [] -> []
-    | (c,(idl,t))::l ->
-      match factorize l with
-        | (xl,((c', t') as r))::l'
-            when (c : bool) == c' && Pervasives.(=) t t' ->
-          (** FIXME: we need equality on constr_expr *)
-          (idl@xl,r)::l'
-        | l' -> (idl,(c,t))::l'
-
-  let pr_ne_params_list pr_c l =
-    match factorize l with
-      | [p] -> pr_params pr_c p
-      | l ->
-        prlist_with_sep spc
-          (fun p -> hov 1 (str "(" ++ pr_params pr_c p ++ str ")")) l
-
-(*
-  prlist_with_sep pr_semicolon (pr_params pr_c)
-*)
-
-  let pr_thm_token k = keyword (Kindops.string_of_theorem_kind k)
-
-  let pr_syntax_modifier = function
-    | SetItemLevel (l,n) ->
-      prlist_with_sep sep_v2 str l ++ spc () ++ pr_at_level n
-    | SetItemLevelAsBinder (l,bk,n) ->
-      prlist_with_sep sep_v2 str l ++
-      spc() ++ pr_at_level_opt n ++ spc() ++ pr_constr_as_binder_kind bk
-    | SetLevel n -> pr_at_level (NumLevel n)
-    | SetAssoc LeftA -> keyword "left associativity"
-    | SetAssoc RightA -> keyword "right associativity"
-    | SetAssoc NonA -> keyword "no associativity"
-    | SetEntryType (x,typ) -> str x ++ spc() ++ pr_set_simple_entry_type typ
-    | SetOnlyPrinting -> keyword "only printing"
-    | SetOnlyParsing -> keyword "only parsing"
-    | SetCompatVersion v -> keyword("compat \"" ^ Flags.pr_version v ^ "\"")
-    | SetFormat("text",s) -> keyword "format " ++ pr_ast qs s
-    | SetFormat(k,s) -> keyword "format " ++ qs k ++ spc() ++ pr_ast qs s
-
-  let pr_syntax_modifiers = function
-    | [] -> mt()
-    | l -> spc() ++
-      hov 1 (str"(" ++ prlist_with_sep sep_v2 pr_syntax_modifier l ++ str")")
-
-  let pr_rec_definition ((iddecl,ro,bl,type_,def),ntn) =
-    let pr_pure_lconstr c = Flags.without_option Flags.beautify pr_lconstr c in
-    let annot = pr_guard_annot pr_lconstr_expr bl ro in
-    pr_ident_decl iddecl ++ pr_binders_arg bl ++ annot
-    ++ pr_type_option (fun c -> spc() ++ pr_lconstr_expr c) type_
-    ++ pr_opt (fun def -> str":=" ++ brk(1,2) ++ pr_pure_lconstr def) def
-    ++ prlist (pr_decl_notation pr_constr) ntn
-
-  let pr_statement head (idpl,(bl,c)) =
-    hov 2
-      (head ++ spc() ++ pr_ident_decl idpl ++ spc() ++
-         (match bl with [] -> mt() | _ -> pr_binders bl ++ spc()) ++
-         str":" ++ pr_spc_lconstr c)
-
-(**************************************)
-(* Pretty printer for vernac commands *)
-(**************************************)
-
-  let pr_constrarg c = spc () ++ pr_constr c
-  let pr_lconstrarg c = spc () ++ pr_lconstr c
-  let pr_intarg n = spc () ++ int n
-
-  let pr_oc = function
-    | None -> str" :"
-    | Some true -> str" :>"
-    | Some false -> str" :>>"
-
-  let pr_record_field ((x, pri), ntn) =
-    let prx = match x with
-      | (oc,AssumExpr (id,t)) ->
-        hov 1 (pr_lname id ++
-                 pr_oc oc ++ spc() ++
-                 pr_lconstr_expr t)
-      | (oc,DefExpr(id,b,opt)) -> (match opt with
-          | Some t ->
-            hov 1 (pr_lname id ++
-                     pr_oc oc ++ spc() ++
-                     pr_lconstr_expr t ++ str" :=" ++ pr_lconstr b)
-          | None ->
-            hov 1 (pr_lname id ++ str" :=" ++ spc() ++
-                     pr_lconstr b)) in
-    let prpri = match pri with None -> mt() | Some i -> str "| " ++ int i in
-    prx ++ prpri ++ prlist (pr_decl_notation pr_constr) ntn
-
-  let pr_record_decl b c fs =
-    pr_opt pr_lident c ++ (if c = None then str"{" else str" {") ++
-      hv 0 (prlist_with_sep pr_semicolon pr_record_field fs ++ str"}")
-
-  let pr_printable = function
-    | PrintFullContext ->
-      keyword "Print All"
-    | PrintSectionContext s ->
-      keyword "Print Section" ++ spc() ++ Libnames.pr_reference s
-    | PrintGrammar ent ->
-      keyword "Print Grammar" ++ spc() ++ str ent
-    | PrintLoadPath dir ->
-      keyword "Print LoadPath" ++ pr_opt DirPath.print dir
-    | PrintModules ->
-      keyword "Print Modules"
-    | PrintMLLoadPath ->
-      keyword "Print ML Path"
-    | PrintMLModules ->
-      keyword "Print ML Modules"
-    | PrintDebugGC ->
-      keyword "Print ML GC"
-    | PrintGraph ->
-      keyword "Print Graph"
-    | PrintClasses ->
-      keyword "Print Classes"
-    | PrintTypeClasses ->
-      keyword "Print TypeClasses"
-    | PrintInstances qid ->
-      keyword "Print Instances" ++ spc () ++ pr_smart_global qid
-    | PrintCoercions ->
-      keyword "Print Coercions"
-    | PrintCoercionPaths (s,t) ->
-      keyword "Print Coercion Paths" ++ spc()
-      ++ pr_class_rawexpr s ++ spc()
-      ++ pr_class_rawexpr t
-    | PrintCanonicalConversions ->
-      keyword "Print Canonical Structures"
-    | PrintTables ->
-      keyword "Print Tables"
-    | PrintHintGoal ->
-      keyword "Print Hint"
-    | PrintHint qid ->
-      keyword "Print Hint" ++ spc () ++ pr_smart_global qid
-    | PrintHintDb ->
-      keyword "Print Hint *"
-    | PrintHintDbName s ->
-      keyword "Print HintDb" ++ spc () ++ str s
-    | PrintUniverses (b, fopt) ->
-      let cmd =
-        if b then "Print Sorted Universes"
-        else "Print Universes"
-      in
-      keyword cmd ++ pr_opt str fopt
-    | PrintName (qid,udecl) ->
-      keyword "Print" ++ spc()  ++ pr_smart_global qid ++ pr_univ_name_list udecl
-    | PrintModuleType qid ->
-      keyword "Print Module Type" ++ spc() ++ pr_reference qid
-    | PrintModule qid ->
-      keyword "Print Module" ++ spc() ++ pr_reference qid
-    | PrintInspect n ->
-      keyword "Inspect" ++ spc() ++ int n
-    | PrintScopes ->
-      keyword "Print Scopes"
-    | PrintScope s ->
-      keyword "Print Scope" ++ spc() ++ str s
-    | PrintVisibility s ->
-      keyword "Print Visibility" ++ pr_opt str s
-    | PrintAbout (qid,l,gopt) ->
-       pr_opt (fun g -> Goal_select.pr_goal_selector g ++ str ":"++ spc()) gopt
-       ++ keyword "About" ++ spc()  ++ pr_smart_global qid ++ pr_univ_name_list l
-    | PrintImplicit qid ->
-      keyword "Print Implicit" ++ spc()  ++ pr_smart_global qid
-    (* spiwack: command printing all the axioms and section variables used in a
-       term *)
-    | PrintAssumptions (b, t, qid) ->
-      let cmd = match b, t with
-        | true, true -> "Print All Dependencies"
-        | true, false -> "Print Opaque Dependencies"
-        | false, true -> "Print Transparent Dependencies"
-        | false, false -> "Print Assumptions"
-      in
-      keyword cmd ++ spc() ++ pr_smart_global qid
-    | PrintNamespace dp ->
-      keyword "Print Namespace" ++ DirPath.print dp
-    | PrintStrategy None ->
-      keyword "Print Strategies"
-    | PrintStrategy (Some qid) ->
-      keyword "Print Strategy" ++ pr_smart_global qid
-
-  let pr_using e =
-    let rec aux = function
-      | SsEmpty -> "()"
-      | SsType -> "(Type)"
-      | SsSingl { v=id } -> "("^Id.to_string id^")"
-      | SsCompl e -> "-" ^ aux e^""
-      | SsUnion(e1,e2) -> "("^aux e1 ^" + "^ aux e2^")"
-      | SsSubstr(e1,e2) -> "("^aux e1 ^" - "^ aux e2^")"
-      | SsFwdClose e -> "("^aux e^")*"
-    in Pp.str (aux e)
-
-  let pr_extend s cl =
-    let pr_arg a =
-      try pr_gen a
-      with Failure _ -> str "<error in " ++ str (fst s) ++ str ">" in
-    try
-      let rl = Egramml.get_extend_vernac_rule s in
-      let rec aux rl cl =
-        match rl, cl with
-        | Egramml.GramNonTerminal _ :: rl, arg :: cl -> pr_arg arg :: aux rl cl
-        | Egramml.GramTerminal s :: rl, cl -> str s :: aux rl cl
-        | [], [] -> []
-        | _ -> assert false in
-      hov 1 (pr_sequence identity (aux rl cl))
-    with Not_found ->
-      hov 1 (str "TODO(" ++ str (fst s) ++ spc () ++ prlist_with_sep sep pr_arg cl ++ str ")")
-
-  let pr_vernac_expr v =
-    let return = tag_vernac v in
-    match v with
-      | VernacLoad (f,s) ->
-        return (
-          keyword "Load"
-          ++ if f then
-              (spc() ++ keyword "Verbose" ++ spc())
-            else
-              spc() ++ qs s
-        )
-
-      (* Proof management *)
-      | VernacAbortAll ->
-        return (keyword "Abort All")
-      | VernacRestart ->
-        return (keyword "Restart")
-      | VernacUnfocus ->
-        return (keyword "Unfocus")
-      | VernacUnfocused ->
-        return (keyword "Unfocused")
-      | VernacAbort id ->
-        return (keyword "Abort" ++ pr_opt pr_lident id)
-      | VernacUndo i ->
-        return (
-          if Int.equal i 1 then keyword "Undo" else keyword "Undo" ++ pr_intarg i
-        )
-      | VernacUndoTo i ->
-        return (keyword "Undo" ++ spc() ++ keyword "To" ++ pr_intarg i)
-      | VernacFocus i ->
-        return (keyword "Focus" ++ pr_opt int i)
-      | VernacShow s ->
-        let pr_goal_reference = function
-          | OpenSubgoals -> mt ()
-          | NthGoal n -> spc () ++ int n
-          | GoalId id -> spc () ++ pr_id id
-        in
-        let pr_showable = function
-          | ShowGoal n -> keyword "Show" ++ pr_goal_reference n
-          | ShowProof -> keyword "Show Proof"
-          | ShowScript -> keyword "Show Script"
-          | ShowExistentials -> keyword "Show Existentials"
-          | ShowUniverses -> keyword "Show Universes"
-          | ShowProofNames -> keyword "Show Conjectures"
-          | ShowIntros b -> keyword "Show " ++ (if b then keyword "Intros" else keyword "Intro")
-          | ShowMatch id -> keyword "Show Match " ++ pr_reference id
-        in
-        return (pr_showable s)
-      | VernacCheckGuard ->
-        return (keyword "Guarded")
-
-    (* Resetting *)
-      | VernacResetName id ->
-        return (keyword "Reset" ++ spc() ++ pr_lident id)
-      | VernacResetInitial ->
-        return (keyword "Reset Initial")
-      | VernacBack i ->
-        return (
-          if Int.equal i 1 then keyword "Back" else keyword "Back" ++ pr_intarg i
-        )
-      | VernacBackTo i ->
-        return (keyword "BackTo" ++ pr_intarg i)
-
-    (* State management *)
-      | VernacWriteState s ->
-        return (keyword "Write State" ++ spc () ++ qs s)
-      | VernacRestoreState s ->
-        return  (keyword "Restore State" ++ spc() ++ qs s)
-
-    (* Syntax *)
-      | VernacOpenCloseScope (opening,sc) ->
-        return (
-          keyword (if opening then "Open " else "Close ") ++
-            keyword "Scope" ++ spc() ++ str sc
-        )
-      | VernacDelimiters (sc,Some key) ->
-        return (
-          keyword "Delimit Scope" ++ spc () ++ str sc ++
-            spc() ++ keyword "with" ++ spc () ++ str key
-        )
-      | VernacDelimiters (sc, None) ->
-        return (
-          keyword "Undelimit Scope" ++ spc () ++ str sc
-        )
-      | VernacBindScope (sc,cll) ->
-        return (
-          keyword "Bind Scope" ++ spc () ++ str sc ++
-            spc() ++ keyword "with" ++ spc () ++ prlist_with_sep spc pr_class_rawexpr cll
-        )
-      | VernacInfix (({v=s},mv),q,sn) -> (* A Verifier *)
-        return (
-          hov 0 (hov 0 (keyword "Infix "
-                        ++ qs s ++ str " :=" ++ pr_constrarg q) ++
-                   pr_syntax_modifiers mv ++
-                   (match sn with
-                     | None -> mt()
-                     | Some sc -> spc() ++ str":" ++ spc() ++ str sc))
-        )
-      | VernacNotation (c,({v=s},l),opt) ->
-        return (
-          hov 2 (keyword "Notation" ++ spc() ++ qs s ++
-                   str " :=" ++ Flags.without_option Flags.beautify pr_constrarg c ++ pr_syntax_modifiers l ++
-                   (match opt with
-                     | None -> mt()
-                     | Some sc -> str" :" ++ spc() ++ str sc))
-        )
-      | VernacSyntaxExtension (_, (s, l)) ->
-        return (
-          keyword "Reserved Notation" ++ spc() ++ pr_ast qs s ++
-            pr_syntax_modifiers l
-        )
-      | VernacNotationAddFormat(s,k,v) ->
-        return (
-          keyword "Format Notation " ++ qs s ++ spc () ++ qs k ++ spc() ++ qs v
-        )
-
-      (* Gallina *)
-      | VernacDefinition ((discharge,kind),id,b) -> (* A verifier... *)
-        let pr_def_token dk =
-          keyword (
-            if Name.is_anonymous (fst id).v
-            then "Goal"
-            else Kindops.string_of_definition_object_kind dk)
-        in
-        let pr_reduce = function
-          | None -> mt()
-          | Some r ->
-            keyword "Eval" ++ spc() ++
-              pr_red_expr (pr_constr, pr_lconstr, pr_smart_global, pr_constr) keyword r ++
-              keyword " in" ++ spc()
-        in
-        let pr_def_body = function
-          | DefineBody (bl,red,body,d) ->
-            let ty = match d with
-              | None -> mt()
-              | Some ty -> spc() ++ str":" ++ pr_spc_lconstr ty
-            in
-            (pr_binders_arg bl,ty,Some (pr_reduce red ++ pr_lconstr body))
-          | ProveBody (bl,t) ->
-            let typ u = if (fst id).v = Anonymous then (assert (bl = []); u) else (str" :" ++ u) in
-            (pr_binders_arg bl, typ (pr_spc_lconstr t), None) in
-        let (binds,typ,c) = pr_def_body b in
-        return (
-          hov 2 (
-            pr_def_token kind ++ spc()
-            ++ pr_lname_decl id ++ binds ++ typ
-            ++ (match c with
-              | None -> mt()
-              | Some cc -> str" :=" ++ spc() ++ cc))
-        )
-
-      | VernacStartTheoremProof (ki,l) ->
-        return (
-          hov 1 (pr_statement (pr_thm_token ki) (List.hd l) ++
-                   prlist (pr_statement (spc () ++ keyword "with")) (List.tl l))
-        )
-
-      | VernacEndProof Admitted ->
-        return (keyword "Admitted")
-
-      | VernacEndProof (Proved (opac,o)) -> return (
-        let open Proof_global in
-        match o with
-          | None -> (match opac with
-              | Transparent -> keyword "Defined"
-              | Opaque      -> keyword "Qed")
-          | Some id -> (if opac <> Transparent then keyword "Save" else keyword "Defined") ++ spc() ++ pr_lident id
-      )
-      | VernacExactProof c ->
-        return (hov 2 (keyword "Proof" ++ pr_lconstrarg c))
-      | VernacAssumption ((discharge,kind),t,l) ->
-        let n = List.length (List.flatten (List.map fst (List.map snd l))) in
-        let pr_params (c, (xl, t)) =
-          hov 2 (prlist_with_sep sep pr_ident_decl xl ++ spc() ++
-            (if c then str":>" else str":" ++ spc() ++ pr_lconstr_expr t)) in
-        let assumptions = prlist_with_sep spc (fun p -> hov 1 (str "(" ++ pr_params p ++ str ")")) l in
-        return (hov 2 (pr_assumption_token (n > 1) discharge kind ++
-                       pr_non_empty_arg pr_assumption_inline t ++ spc() ++ assumptions))
-      | VernacInductive (cum, p,f,l) ->
-        let pr_constructor (coe,(id,c)) =
-          hov 2 (pr_lident id ++ str" " ++
-                   (if coe then str":>" else str":") ++
-                   Flags.without_option Flags.beautify pr_spc_lconstr c)
-        in
-        let pr_constructor_list b l = match l with
-          | Constructors [] -> mt()
-          | Constructors l ->
-            let fst_sep = match l with [_] -> "   " | _ -> " | " in
-            pr_com_at (begin_of_inductive l) ++
-              fnl() ++ str fst_sep ++
-              prlist_with_sep (fun _ -> fnl() ++ str" | ") pr_constructor l
-          | RecordDecl (c,fs) ->
-            pr_record_decl b c fs
-        in
-        let pr_oneind key (((coe,iddecl),indpar,s,k,lc),ntn) =
-          hov 0 (
-            str key ++ spc() ++
-              (if coe then str"> " else str"") ++ pr_ident_decl iddecl ++
-              pr_and_type_binders_arg indpar ++
-              pr_opt (fun s -> str":" ++ spc() ++ pr_lconstr_expr s) s ++
-              str" :=") ++ pr_constructor_list k lc ++
-            prlist (pr_decl_notation pr_constr) ntn
-        in
-        let key =
-          let (_,_,_,k,_),_ = List.hd l in
-          let kind =
-            match k with Record -> "Record" | Structure -> "Structure"
-                       | Inductive_kw -> "Inductive" | CoInductive -> "CoInductive"
-                       | Class _ -> "Class" | Variant -> "Variant"
-          in
-          if p then
-            let cm =
-              match cum with
-              | Some VernacCumulative -> "Cumulative"
-              | Some VernacNonCumulative -> "NonCumulative"
-              | None -> ""
-            in
-            cm ^ " " ^ kind
-          else kind
-        in
-        return (
-          hov 1 (pr_oneind key (List.hd l)) ++
-          (prlist (fun ind -> fnl() ++ hov 1 (pr_oneind "with" ind)) (List.tl l))
-        )
-
-      | VernacFixpoint (local, recs) ->
-        let local = match local with
-          | DoDischarge -> "Let "
-          | NoDischarge -> ""
-        in
-        return (
-          hov 0 (str local ++ keyword "Fixpoint" ++ spc () ++
-                   prlist_with_sep (fun _ -> fnl () ++ keyword "with"
-                     ++ spc ()) pr_rec_definition recs)
-        )
-
-      | VernacCoFixpoint (local, corecs) ->
-        let local = match local with
-          | DoDischarge -> keyword "Let" ++ spc ()
-          | NoDischarge -> str ""
-        in
-        let pr_onecorec ((iddecl,bl,c,def),ntn) =
-          pr_ident_decl iddecl ++ spc() ++ pr_binders bl ++ spc() ++ str":" ++
-            spc() ++ pr_lconstr_expr c ++
-            pr_opt (fun def -> str":=" ++ brk(1,2) ++ pr_lconstr def) def ++
-            prlist (pr_decl_notation pr_constr) ntn
-        in
-        return (
-          hov 0 (local ++ keyword "CoFixpoint" ++ spc() ++
-                   prlist_with_sep (fun _ -> fnl() ++ keyword "with" ++ spc ()) pr_onecorec corecs)
-        )
-      | VernacScheme l ->
-        return (
-          hov 2 (keyword "Scheme" ++ spc() ++
-                   prlist_with_sep (fun _ -> fnl() ++ keyword "with" ++ spc ()) pr_onescheme l)
-        )
-      | VernacCombinedScheme (id, l) ->
-        return (
-          hov 2 (keyword "Combined Scheme" ++ spc() ++
-                   pr_lident id ++ spc() ++ keyword "from" ++ spc() ++
-                   prlist_with_sep (fun _ -> fnl() ++ str", ") pr_lident l)
-        )
-      | VernacUniverse v ->
-        return (
-          hov 2 (keyword "Universe" ++ spc () ++
-                   prlist_with_sep (fun _ -> str",") pr_lident v)
-        )
-      | VernacConstraint v ->
-        return (
-          hov 2 (keyword "Constraint" ++ spc () ++
-                   prlist_with_sep (fun _ -> str",") pr_uconstraint v)
-        )
-
-      (* Gallina extensions *)
-      | VernacBeginSection id ->
-        return (hov 2 (keyword "Section" ++ spc () ++ pr_lident id))
-      | VernacEndSegment id ->
-        return (hov 2 (keyword "End" ++ spc() ++ pr_lident id))
-      | VernacNameSectionHypSet (id,set) ->
-        return (hov 2 (keyword "Package" ++ spc() ++ pr_lident id ++ spc()++
-        str ":="++spc()++pr_using set))
-      | VernacRequire (from, exp, l) ->
-        let from = match from with
-        | None -> mt ()
-        | Some r -> keyword "From" ++ spc () ++ pr_module r ++ spc ()
-        in
-        return (
-          hov 2
-            (from ++ keyword "Require" ++ spc() ++ pr_require_token exp ++
-               prlist_with_sep sep pr_module l)
-        )
-      | VernacImport (f,l) ->
-        return (
-          (if f then keyword "Export" else keyword "Import") ++ spc() ++
-            prlist_with_sep sep pr_import_module l
-        )
-      | VernacCanonical q ->
-        return (
-          keyword "Canonical Structure" ++ spc() ++ pr_smart_global q
-        )
-      | VernacCoercion (id,c1,c2) ->
-        return (
-          hov 1 (
-            keyword "Coercion" ++ spc() ++
-              pr_smart_global id ++ spc() ++ str":" ++ spc() ++ pr_class_rawexpr c1 ++
-              spc() ++ str">->" ++ spc() ++ pr_class_rawexpr c2)
-        )
-      | VernacIdentityCoercion (id,c1,c2) ->
-        return (
-          hov 1 (
-            keyword "Identity Coercion" ++ spc() ++ pr_lident id ++
-              spc() ++ str":" ++ spc() ++ pr_class_rawexpr c1 ++ spc() ++ str">->" ++
-              spc() ++ pr_class_rawexpr c2)
-        )
-
-      | VernacInstance (abst, sup, (instid, bk, cl), props, info) ->
-        return (
-          hov 1 (
-            (if abst then keyword "Declare" ++ spc () else mt ()) ++
-            keyword "Instance" ++
-            (match instid with
-             | {loc; v = Name id}, l -> spc () ++ pr_ident_decl (CAst.(make ?loc id),l) ++ spc ()
-             | { v = Anonymous }, _ -> mt ()) ++
-            pr_and_type_binders_arg sup ++
-              str":" ++ spc () ++
-              (match bk with Implicit -> str "! " | Explicit -> mt ()) ++
-              pr_constr cl ++ pr_hint_info pr_constr_pattern_expr info ++
-              (match props with
-                | Some (true, { v = CRecord l}) -> spc () ++ str":=" ++ spc () ++ str"{" ++ pr_record_body l ++ str "}"
-                | Some (true,_) -> assert false
-                | Some (false,p) -> spc () ++ str":=" ++ spc () ++ pr_constr p
-                | None -> mt()))
-        )
-
-      | VernacContext l ->
-        return (
-          hov 1 (
-            keyword "Context" ++ pr_and_type_binders_arg l)
-        )
-
-      | VernacDeclareInstances insts ->
-         let pr_inst (id, info) =
-           pr_reference id ++ pr_hint_info pr_constr_pattern_expr info
-         in
-         return (
-          hov 1 (keyword "Existing" ++ spc () ++
-                   keyword(String.plural (List.length insts) "Instance") ++
-                 spc () ++ prlist_with_sep (fun () -> str", ") pr_inst insts)
-        )
-
-      | VernacDeclareClass id ->
-        return (
-          hov 1 (keyword "Existing" ++ spc () ++ keyword "Class" ++ spc () ++ pr_reference id)
-        )
-
-      (* Modules and Module Types *)
-      | VernacDefineModule (export,m,bl,tys,bd) ->
-        let b = pr_module_binders bl pr_lconstr in
-        return (
-          hov 2 (keyword "Module" ++ spc() ++ pr_require_token export ++
-                   pr_lident m ++ b ++
-                   pr_of_module_type pr_lconstr tys ++
-                   (if List.is_empty bd then mt () else str ":= ") ++
-                   prlist_with_sep (fun () -> str " <+")
-                   (pr_module_ast_inl true pr_lconstr) bd)
-        )
-      | VernacDeclareModule (export,id,bl,m1) ->
-        let b = pr_module_binders bl pr_lconstr in
-        return (
-          hov 2 (keyword "Declare Module" ++ spc() ++ pr_require_token export ++
-                   pr_lident id ++ b ++ str " :" ++
-                   pr_module_ast_inl true pr_lconstr m1)
-        )
-      | VernacDeclareModuleType (id,bl,tyl,m) ->
-        let b = pr_module_binders bl pr_lconstr in
-        let pr_mt = pr_module_ast_inl true pr_lconstr in
-        return (
-          hov 2 (keyword "Module Type " ++ pr_lident id ++ b ++
-                   prlist_strict (fun m -> str " <:" ++ pr_mt m) tyl ++
-                   (if List.is_empty m then mt () else str ":= ") ++
-                   prlist_with_sep (fun () -> str " <+ ") pr_mt m)
-        )
-      | VernacInclude (mexprs) ->
-        let pr_m = pr_module_ast_inl false pr_lconstr in
-        return (
-          hov 2 (keyword "Include" ++ spc() ++
-                   prlist_with_sep (fun () -> str " <+ ") pr_m mexprs)
-        )
-      (* Solving *)
-      | VernacSolveExistential (i,c) ->
-        return (keyword "Existential" ++ spc () ++ int i ++ pr_lconstrarg c)
-
-      (* Auxiliary file and library management *)
-      | VernacAddLoadPath (fl,s,d) ->
-        return (
-          hov 2
-            (keyword "Add" ++
-               (if fl then spc () ++ keyword "Rec" ++ spc () else spc()) ++
-               keyword "LoadPath" ++ spc() ++ qs s ++
-               (match d with
-                 | None -> mt()
-                 | Some dir -> spc() ++ keyword "as" ++ spc() ++ DirPath.print dir))
-        )
-      | VernacRemoveLoadPath s ->
-        return (keyword "Remove LoadPath" ++ qs s)
-      | VernacAddMLPath (fl,s) ->
-        return (
-          keyword "Add"
-          ++ (if fl then spc () ++ keyword "Rec" ++ spc () else spc())
-          ++ keyword "ML Path"
-          ++ qs s
-        )
-      | VernacDeclareMLModule (l) ->
-        return (
-          hov 2 (keyword "Declare ML Module" ++ spc() ++ prlist_with_sep sep qs l)
-        )
-      | VernacChdir s ->
-        return (keyword "Cd" ++ pr_opt qs s)
-
-      (* Commands *)
-      | VernacCreateHintDb (dbname,b) ->
-        return (
-          hov 1 (keyword "Create HintDb" ++ spc () ++
-                   str dbname ++ (if b then str" discriminated" else mt ()))
-        )
-      | VernacRemoveHints (dbnames, ids) ->
-        return (
-          hov 1 (keyword "Remove Hints" ++ spc () ++
-                   prlist_with_sep spc (fun r -> pr_id (coerce_reference_to_id r)) ids ++
-                   pr_opt_hintbases dbnames)
-        )
-      | VernacHints (dbnames,h) ->
-        return (pr_hints dbnames h pr_constr pr_constr_pattern_expr)
-      | VernacSyntacticDefinition (id,(ids,c),compat) ->
-        return (
-          hov 2
-            (keyword "Notation" ++ spc () ++ pr_lident id ++ spc () ++
-               prlist_with_sep spc pr_id ids ++ str":=" ++ pr_constrarg c ++
-               pr_syntax_modifiers
-               (match compat with
-                | None -> []
-                | Some Flags.Current -> [SetOnlyParsing]
-                | Some v -> [SetCompatVersion v]))
-        )
-      | VernacArguments (q, args, more_implicits, nargs, mods) ->
-        return (
-          hov 2 (
-            keyword "Arguments" ++ spc() ++
-              pr_smart_global q ++
-              let pr_s = function None -> str"" | Some {v=s} -> str "%" ++ str s in
-              let pr_if b x = if b then x else str "" in
-              let pr_br imp x = match imp with
-                | Vernacexpr.Implicit -> str "[" ++ x ++ str "]"
-                | Vernacexpr.MaximallyImplicit -> str "{" ++ x ++ str "}"
-                | Vernacexpr.NotImplicit -> x in
-              let rec print_arguments n l =
-                match n, l with
-                  | Some 0, l -> spc () ++ str"/" ++ print_arguments None l
-                  | _, [] -> mt()
-                  | n, { name = id; recarg_like = k;
-                         notation_scope = s;
-                         implicit_status = imp } :: tl ->
-                    spc() ++ pr_br imp (pr_if k (str"!") ++ Name.print id ++ pr_s s) ++
-                      print_arguments (Option.map pred n) tl
-              in
-              let rec print_implicits = function
-                | [] -> mt ()
-                | (name, impl) :: rest ->
-                   spc() ++ pr_br impl (Name.print name) ++ print_implicits rest
-              in
-              print_arguments nargs args ++
-                if not (List.is_empty more_implicits) then
-                  prlist (fun l -> str"," ++ print_implicits l) more_implicits
-                else (mt ()) ++
-                (if not (List.is_empty mods) then str" : " else str"") ++
-                  prlist_with_sep (fun () -> str", " ++ spc()) (function
-                    | `ReductionDontExposeCase -> keyword "simpl nomatch"
-                    | `ReductionNeverUnfold -> keyword "simpl never"
-                    | `DefaultImplicits -> keyword "default implicits"
-                    | `Rename -> keyword "rename"
-                    | `Assert -> keyword "assert"
-                    | `ExtraScopes -> keyword "extra scopes"
-                    | `ClearImplicits -> keyword "clear implicits"
-                    | `ClearScopes -> keyword "clear scopes")
-                  mods)
-        )
-      | VernacReserve bl ->
-        let n = List.length (List.flatten (List.map fst bl)) in
-        return (
-          hov 2 (tag_keyword (str"Implicit Type" ++ str (if n > 1 then "s " else " "))
-                 ++ pr_ne_params_list pr_lconstr_expr (List.map (fun sb -> false,sb) bl))
-        )
-      | VernacGeneralizable g ->
-        return (
-          hov 1 (tag_keyword (
-            str"Generalizable Variable" ++
-              match g with
-                | None -> str "s none"
-                | Some [] -> str "s all"
-                | Some idl ->
-                  str (if List.length idl > 1 then "s " else " ") ++
-                    prlist_with_sep spc pr_lident idl)
-          ))
-      | VernacSetOpacity(k,l) when Conv_oracle.is_transparent k ->
-        return (
-          hov 1 (keyword "Transparent" ++
-                   spc() ++ prlist_with_sep sep pr_smart_global l)
-        )
-      | VernacSetOpacity(Conv_oracle.Opaque,l) ->
-        return (
-          hov 1 (keyword "Opaque" ++
-                   spc() ++ prlist_with_sep sep pr_smart_global l)
-        )
-      | VernacSetOpacity _ ->
-        return (
-          CErrors.anomaly (keyword "VernacSetOpacity used to set something else.")
-        )
-      | VernacSetStrategy l ->
-        let pr_lev = function
-          | Conv_oracle.Opaque -> keyword "opaque"
-          | Conv_oracle.Expand -> keyword "expand"
-          | l when Conv_oracle.is_transparent l -> keyword "transparent"
-          | Conv_oracle.Level n -> int n
-        in
-        let pr_line (l,q) =
-          hov 2 (pr_lev l ++ spc() ++
-                   str"[" ++ prlist_with_sep sep pr_smart_global q ++ str"]")
-        in
-        return (
-          hov 1 (keyword "Strategy" ++ spc() ++
-                   hv 0 (prlist_with_sep sep pr_line l))
-        )
-      | VernacUnsetOption (export, na) ->
-        let export = if export then keyword "Export" ++ spc () else mt () in
-        return (
-          hov 1 (export ++ keyword "Unset" ++ spc() ++ pr_printoption na None)
-        )
-      | VernacSetOption (export, na,v) ->
-        let export = if export then keyword "Export" ++ spc () else mt () in
-        return (
-          hov 2 (export ++ keyword "Set" ++ spc() ++ pr_set_option na v)
-        )
-      | VernacAddOption (na,l) ->
-        return (
-          hov 2 (keyword "Add" ++ spc() ++ pr_printoption na (Some l))
-        )
-      | VernacRemoveOption (na,l) ->
-        return (
-          hov 2 (keyword "Remove" ++ spc() ++ pr_printoption na (Some l))
-        )
-      | VernacMemOption (na,l) ->
-        return (
-          hov 2 (keyword "Test" ++ spc() ++ pr_printoption na (Some l))
-        )
-      | VernacPrintOption na ->
-        return (
-          hov 2 (keyword "Test" ++ spc() ++ pr_printoption na None)
-        )
-      | VernacCheckMayEval (r,io,c) ->
-        let pr_mayeval r c = match r with
-          | Some r0 ->
-            hov 2 (keyword "Eval" ++ spc() ++
-                     pr_red_expr (pr_constr,pr_lconstr,pr_smart_global, pr_constr) keyword r0 ++
-                     spc() ++ keyword "in" ++ spc () ++ pr_lconstr c)
-          | None -> hov 2 (keyword "Check" ++ spc() ++ pr_lconstr c)
-        in
-        let pr_i = match io with None -> mt ()
-                               | Some i -> Goal_select.pr_goal_selector i ++ str ": " in
-        return (pr_i ++ pr_mayeval r c)
-      | VernacGlobalCheck c ->
-        return (hov 2 (keyword "Type" ++ pr_constrarg c))
-      | VernacDeclareReduction (s,r) ->
-        return (
-          keyword "Declare Reduction" ++ spc () ++ str s ++ str " := " ++
-            pr_red_expr (pr_constr,pr_lconstr,pr_smart_global, pr_constr) keyword r
-        )
-      | VernacPrint p ->
-        return (pr_printable p)
-      | VernacSearch (sea,g,sea_r) ->
-        return (pr_search sea g sea_r pr_constr_pattern_expr)
-      | VernacLocate loc ->
-        let pr_locate =function
-          | LocateAny qid -> pr_smart_global qid
-          | LocateTerm qid -> keyword "Term" ++ spc() ++ pr_smart_global qid
-          | LocateFile f -> keyword "File" ++ spc() ++ qs f
-          | LocateLibrary qid -> keyword "Library" ++ spc () ++ pr_module qid
-          | LocateModule qid -> keyword "Module" ++ spc () ++ pr_module qid
-          | LocateOther (s, qid) -> keyword s ++ spc () ++ pr_ltac_ref qid
-        in
-        return (keyword "Locate" ++ spc() ++ pr_locate loc)
-      | VernacRegister (id, RegisterInline) ->
-        return (
-          hov 2
-            (keyword "Register Inline" ++ spc() ++ pr_lident id)
-        )
-      | VernacComments l ->
-        return (
-          hov 2
-            (keyword "Comments" ++ spc()
-             ++ prlist_with_sep sep (pr_comment pr_constr) l)
-        )
-
-      (* For extension *)
-      | VernacExtend (s,c) ->
-        return (pr_extend s c)
-      | VernacProof (None, None) ->
-        return (keyword "Proof")
-      | VernacProof (None, Some e) ->
-        return (keyword "Proof " ++ spc () ++
-            keyword "using" ++ spc() ++ pr_using e)
-      | VernacProof (Some te, None) ->
-        return (keyword "Proof with" ++ spc() ++ Pputils.pr_raw_generic (Global.env ()) te)
-      | VernacProof (Some te, Some e) ->
-        return (
-          keyword "Proof" ++ spc () ++
-            keyword "using" ++ spc() ++ pr_using e ++ spc() ++
-            keyword "with" ++ spc() ++ Pputils.pr_raw_generic (Global.env ()) te
-        )
-      | VernacProofMode s ->
-        return (keyword "Proof Mode" ++ str s)
-      | VernacBullet b ->
-        (* XXX: Redundant with Proof_bullet.print *)
-        return (let open Proof_bullet in begin match b with
-          | Dash n -> str (String.make n '-')
-          | Star n -> str (String.make n '*')
-          | Plus n -> str (String.make n '+')
-        end)
-      | VernacSubproof None ->
-        return (str "{")
-      | VernacSubproof (Some i) ->
-        return (Goal_select.pr_goal_selector i ++ str ":" ++ spc () ++ str "{")
-      | VernacEndSubproof ->
-        return (str "}")
-
-let pr_vernac_flag =
-  function
-  | VernacPolymorphic true -> keyword "Polymorphic"
-  | VernacPolymorphic false -> keyword "Monomorphic"
-  | VernacProgram -> keyword "Program"
-  | VernacLocal local -> pr_locality local
-
-  let rec pr_vernac_control v =
-    let return = tag_vernac v in
-    match v with
-    | VernacExpr (f, v') ->
-      List.fold_right
-        (fun f a -> pr_vernac_flag f ++ spc() ++ a)
-        f
-        (pr_vernac_expr v' ++ sep_end v')
-    | VernacTime (_,{v}) ->
-      return (keyword "Time" ++ spc() ++ pr_vernac_control v)
-    | VernacRedirect (s, {v}) ->
-      return (keyword "Redirect" ++ spc() ++ qs s ++ spc() ++ pr_vernac_control v)
-    | VernacTimeout(n,v) ->
-      return (keyword "Timeout " ++ int n ++ spc() ++ pr_vernac_control v)
-    | VernacFail v ->
-      return (keyword "Fail" ++ spc() ++ pr_vernac_control v)
-
-    let pr_vernac v =
-      try pr_vernac_control v
-      with e -> CErrors.print e
diff --git a/printing/ppvernac.mli b/printing/ppvernac.mli
deleted file mode 100644
index 4aa24bf5d..000000000
--- a/printing/ppvernac.mli
+++ /dev/null
@@ -1,26 +0,0 @@
-(************************************************************************)
-(*         *   The Coq Proof Assistant / The Coq Development Team       *)
-(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
-(* <O___,, *       (see CREDITS file for the list of authors)           *)
-(*   \VV/  **************************************************************)
-(*    //   *    This file is distributed under the terms of the         *)
-(*         *     GNU Lesser General Public License Version 2.1          *)
-(*         *     (see LICENSE file for the text of the license)         *)
-(************************************************************************)
-
-(** This module implements pretty-printers for vernac_expr syntactic
-    objects and their subcomponents. *)
-
-val pr_set_entry_type : ('a -> Pp.t) -> 'a Extend.constr_entry_key_gen -> Pp.t
-
-(** Prints a fixpoint body *)
-val pr_rec_definition : (Vernacexpr.fixpoint_expr * Vernacexpr.decl_notation list) -> Pp.t
-
-(** Prints a vernac expression without dot *)
-val pr_vernac_expr : Vernacexpr.vernac_expr -> Pp.t
-
-(** Prints a "proof using X" clause. *)
-val pr_using : Vernacexpr.section_subset_expr -> Pp.t
-
-(** Prints a vernac expression and closes it with a dot. *)
-val pr_vernac : Vernacexpr.vernac_control -> Pp.t
diff --git a/printing/printing.mllib b/printing/printing.mllib
index 86b68d8fb..b69d8a9ef 100644
--- a/printing/printing.mllib
+++ b/printing/printing.mllib
@@ -4,4 +4,3 @@ Ppconstr
 Printer
 Printmod
 Prettyp
-Ppvernac