1 (* Copyright (C) 2004, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
28 type direction = [ `LeftToRight | `RightToLeft ]
30 type loc = Token.flocation
32 type ('term, 'lazy_term, 'ident) pattern =
33 'lazy_term option * ('ident * 'term) list * 'term option
35 type ('term, 'ident) type_spec =
37 | Type of UriManager.uri * int
39 type 'lazy_term reduction =
43 | `Unfold of 'lazy_term option
46 type ('term, 'lazy_term, 'reduction, 'ident) tactic =
47 | Absurd of loc * 'term
48 | Apply of loc * 'term
49 | ApplyS of loc * 'term * (string * string) list
51 | Auto of loc * (string * string) list
52 | Change of loc * ('term, 'lazy_term, 'ident) pattern * 'lazy_term
53 | Clear of loc * 'ident list
54 | ClearBody of loc * 'ident
55 | Constructor of loc * int
56 | Contradiction of loc
57 | Cut of loc * 'ident option * 'term
58 | Decompose of loc * ('term, 'ident) type_spec list * 'ident option * 'ident list
60 | Destruct of loc * 'term
61 | Elim of loc * 'term * 'term option * int option * 'ident list
62 | ElimType of loc * 'term * 'term option * int option * 'ident list
63 | Exact of loc * 'term
66 | Fold of loc * 'reduction * 'lazy_term * ('term, 'lazy_term, 'ident) pattern
68 | FwdSimpl of loc * string * 'ident list
69 | Generalize of loc * ('term, 'lazy_term, 'ident) pattern * 'ident option
70 | Goal of loc * int (* change current goal, argument is goal number 1-based *)
72 | Intros of loc * int option * 'ident list
73 | Inversion of loc * 'term
74 | LApply of loc * bool * int option * 'term list * 'term * 'ident option
76 | LetIn of loc * 'term * 'ident
77 | Reduce of loc * 'reduction * ('term, 'lazy_term, 'ident) pattern
79 | Replace of loc * ('term, 'lazy_term, 'ident) pattern * 'lazy_term
80 | Rewrite of loc * direction * 'term *
81 ('term, 'lazy_term, 'ident) pattern
87 | Transitivity of loc * 'term
88 (* Costruttori Aggiunti *)
89 | Assume of loc * 'ident * 'term
90 | Suppose of loc * 'term *'ident * 'term option
91 | By_term_we_proved of loc *'term option * 'term * 'ident option * 'term option
92 | We_need_to_prove of loc * 'term * 'ident option * 'term option
93 | Bydone of loc * 'term option
94 | We_proceed_by_induction_on of loc * 'term * 'term
95 | Byinduction of loc * 'term * 'ident
96 | Thesisbecomes of loc * 'term
97 | Case of loc * string * (string * 'term) list
98 | ExistsElim of loc * 'term * 'ident * 'term * 'ident * 'term
99 | AndElim of loc * 'term * 'ident * 'term * 'ident * 'term
101 loc * (string option * 'term) option * 'term *
102 [ `Term of 'term | `Auto of (string * string) list ] *
105 type search_kind = [ `Locate | `Hint | `Match | `Elim ]
107 type print_kind = [ `Env | `Coer ]
109 type style = Declarative
114 | WHint of loc * 'term
115 | WMatch of loc * 'term
116 | WInstance of loc * 'term
117 | WLocate of loc * string
118 | WElim of loc * 'term
120 | Check of loc * 'term
122 | Inline of loc * style * string * string (* URI or base-uri, name prefix *)
124 (** To be increased each time the command type below changes, used for "safe"
128 type ('term,'obj) command =
129 | Index of loc * 'term option (* key *) * UriManager.uri (* value *)
130 | Coercion of loc * UriManager.uri * bool (* add_obj *) * int (* arity *)
131 | Default of loc * string * UriManager.uri list
133 | Include of loc * string
136 loc * string * 'term * 'term * 'term option * 'term option * 'term option
137 | Set of loc * string * string
138 | Print of loc * string
141 type ('term, 'lazy_term, 'reduction, 'ident) tactical =
142 | Tactic of loc * ('term, 'lazy_term, 'reduction, 'ident) tactic
143 | Do of loc * int * ('term, 'lazy_term, 'reduction, 'ident) tactical
144 | Repeat of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical
145 | Seq of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical list
146 (* sequential composition *)
147 | Then of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical *
148 ('term, 'lazy_term, 'reduction, 'ident) tactical list
149 | First of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical list
150 (* try a sequence of loc * tactical until one succeeds, fail otherwise *)
151 | Try of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical
152 (* try a tactical and mask failures *)
153 | Solve of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical list
154 | Progress of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical
160 | Pos of loc * int list
163 | Focus of loc * int list
169 | Dot _ | Semicolon _ | Branch _ | Shift _ | Merge _ | Pos _ -> true
172 type ('term, 'lazy_term, 'reduction, 'obj, 'ident) code =
173 | Command of loc * ('term, 'obj) command
174 | Macro of loc * 'term macro
175 | Tactical of loc * ('term, 'lazy_term, 'reduction, 'ident) tactical
176 * ('term, 'lazy_term, 'reduction, 'ident) tactical option(* punctuation *)
178 type ('term, 'lazy_term, 'reduction, 'obj, 'ident) comment =
179 | Note of loc * string
180 | Code of loc * ('term, 'lazy_term, 'reduction, 'obj, 'ident) code
182 type ('term, 'lazy_term, 'reduction, 'obj, 'ident) statement =
183 | Executable of loc * ('term, 'lazy_term, 'reduction, 'obj, 'ident) code
184 | Comment of loc * ('term, 'lazy_term, 'reduction, 'obj, 'ident) comment