--- /dev/null
+(* Copyright (C) 2004, 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://helm.cs.unibo.it/
+ *)
+
+(* $Id$ *)
+
+type direction = [ `LeftToRight | `RightToLeft ]
+
+type loc = Stdpp.location
+
+type ('term, 'lazy_term, 'ident) pattern =
+ 'lazy_term option * ('ident * 'term) list * 'term option
+
+type 'lazy_term reduction =
+ [ `Normalize
+ | `Simpl
+ | `Unfold of 'lazy_term option
+ | `Whd ]
+
+type 'ident intros_spec = int option * 'ident option list
+
+type 'term auto_params = 'term list * (string*string) list
+
+type ('term, 'lazy_term, 'reduction, 'ident) tactic =
+ (* Higher order tactics (i.e. tacticals) *)
+ | Do of loc * int * ('term, 'lazy_term, 'reduction, 'ident) tactic
+ | Repeat of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic
+ | Seq of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic list
+ (* sequential composition *)
+ | Then of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic *
+ ('term, 'lazy_term, 'reduction, 'ident) tactic list
+ | First of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic list
+ (* try a sequence of loc * tactic until one succeeds, fail otherwise *)
+ | Try of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic
+ (* try a tactic and mask failures *)
+ | Solve of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic list
+ | Progress of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic
+ (* Real tactics *)
+ | Absurd of loc * 'term
+ | Apply of loc * 'term
+ | ApplyS of loc * 'term * 'term auto_params
+ | Assumption of loc
+ | AutoBatch of loc * 'term auto_params
+ | Cases of loc * 'term * 'ident intros_spec
+ | Change of loc * ('term, 'lazy_term, 'ident) pattern * 'lazy_term
+ | Clear of loc * 'ident list
+ | ClearBody of loc * 'ident
+ | Compose of loc * 'term * 'term option * int * 'ident intros_spec
+ | Constructor of loc * int
+ | Contradiction of loc
+ | Cut of loc * 'ident option * 'term
+ | Decompose of loc * 'ident option list
+ | Demodulate of loc * 'term auto_params
+ | Destruct of loc * 'term list option
+ | Elim of loc * 'term * 'term option * ('term, 'lazy_term, 'ident) pattern *
+ 'ident intros_spec
+ | ElimType of loc * 'term * 'term option * 'ident intros_spec
+ | Exact of loc * 'term
+ | Exists of loc
+ | Fail of loc
+ | Fold of loc * 'reduction * 'lazy_term * ('term, 'lazy_term, 'ident) pattern
+ | Fourier of loc
+ | FwdSimpl of loc * string * 'ident option list
+ | Generalize of loc * ('term, 'lazy_term, 'ident) pattern * 'ident option
+ | IdTac of loc
+ | Intros of loc * 'ident intros_spec
+ | Inversion of loc * 'term
+ | LApply of loc * bool * int option * 'term list * 'term * 'ident option
+ | Left of loc
+ | LetIn of loc * 'term * 'ident
+ | Reduce of loc * 'reduction * ('term, 'lazy_term, 'ident) pattern
+ | Reflexivity of loc
+ | Replace of loc * ('term, 'lazy_term, 'ident) pattern * 'lazy_term
+ | Rewrite of loc * direction * 'term *
+ ('term, 'lazy_term, 'ident) pattern * 'ident option list
+ | Right of loc
+ | Ring of loc
+ | Split of loc
+ | Symmetry of loc
+ | Transitivity of loc * 'term
+ (* Declarative language *)
+ | Assume of loc * 'ident * 'term
+ | Suppose of loc * 'term *'ident * 'term option
+ | By_term_we_proved of loc *'term option * 'term * 'ident option * 'term option
+ | We_need_to_prove of loc * 'term * 'ident option * 'term option
+ | Bydone of loc * 'term option
+ | We_proceed_by_induction_on of loc * 'term * 'term
+ | We_proceed_by_cases_on of loc * 'term * 'term
+ | Byinduction of loc * 'term * 'ident
+ | Thesisbecomes of loc * 'term
+ | Case of loc * string * (string * 'term) list
+ | ExistsElim of loc * 'term option * 'ident * 'term * 'ident * 'lazy_term
+ | AndElim of loc * 'term * 'ident * 'term * 'ident * 'term
+ | RewritingStep of
+ loc * (string option * 'term) option * 'term *
+ [ `Term of 'term | `Auto of 'term auto_params
+ | `Proof | `SolveWith of 'term ] *
+ bool (* last step*)
+
+type search_kind = [ `Locate | `Hint | `Match | `Elim ]
+
+type print_kind = [ `Env | `Coer ]
+
+type presentation_style = Declarative
+ | Procedural of int option
+
+type 'term macro =
+ (* Whelp's stuff *)
+ | WHint of loc * 'term
+ | WMatch of loc * 'term
+ | WInstance of loc * 'term
+ | WLocate of loc * string
+ | WElim of loc * 'term
+ (* real macros *)
+ | Check of loc * 'term
+ | Hint of loc * bool
+ | AutoInteractive of loc * 'term auto_params
+ | Inline of loc * presentation_style * string * string
+ (* URI or base-uri, name prefix *)
+
+(** To be increased each time the command type below changes, used for "safe"
+ * marshalling *)
+let magic = 12
+
+type ('term,'obj) command =
+ | Index of loc * 'term option (* key *) * UriManager.uri (* value *)
+ | Coercion of loc * UriManager.uri * bool (* add_obj *) *
+ int (* arity *) * int (* saturations *)
+ | Default of loc * string * UriManager.uri list
+ | Drop of loc
+ | Include of loc * string
+ | Obj of loc * 'obj
+ | Relation of
+ loc * string * 'term * 'term * 'term option * 'term option * 'term option
+ | Set of loc * string * string
+ | Print of loc * string
+ | Qed of loc
+
+type ('term, 'lazy_term, 'reduction, 'ident) punctuation_tactical =
+ | Dot of loc
+ | Semicolon of loc
+ | Branch of loc
+ | Shift of loc
+ | Pos of loc * int list
+ | Wildcard of loc
+ | Merge of loc
+
+type ('term,'lazy_term,'reduction,'ident) non_punctuation_tactical =
+ | Focus of loc * int list
+ | Unfocus of loc
+ | Skip of loc
+
+type ('term, 'lazy_term, 'reduction, 'obj, 'ident) code =
+ | Command of loc * ('term, 'obj) command
+ | Macro of loc * 'term macro
+ | Tactic of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic option
+ * ('term, 'lazy_term, 'reduction, 'ident) punctuation_tactical
+ | NonPunctuationTactical of loc
+ * ('term, 'lazy_term, 'reduction, 'ident) non_punctuation_tactical
+ * ('term, 'lazy_term, 'reduction, 'ident) punctuation_tactical
+
+type ('term, 'lazy_term, 'reduction, 'obj, 'ident) comment =
+ | Note of loc * string
+ | Code of loc * ('term, 'lazy_term, 'reduction, 'obj, 'ident) code
+
+type ('term, 'lazy_term, 'reduction, 'obj, 'ident) statement =
+ | Executable of loc * ('term, 'lazy_term, 'reduction, 'obj, 'ident) code
+ | Comment of loc * ('term, 'lazy_term, 'reduction, 'obj, 'ident) comment
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