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/
26 type direction = [ `Left | `Right ]
27 type reduction_kind = [ `Reduce | `Simpl | `Whd | `Normalize ]
29 type loc = CicAst.location
31 type ('term, 'ident) pattern =
32 ('ident * 'term) list * 'term option
34 type ('term, 'ident) tactic =
35 | Absurd of loc * 'term
36 | Apply of loc * 'term
37 | Auto of loc * int option
39 | Change of loc * 'term * 'term * ('term,'ident) pattern (* what, with what, where *)
40 | Compare of loc * 'term
41 | Constructor of loc * int
42 | Contradiction of loc
44 | DecideEquality of loc
45 | Decompose of loc * 'term
46 | Discriminate of loc * 'term
47 | Elim of loc * 'term * 'term option (* what to elim, which principle to use *)
48 | ElimType of loc * 'term
49 | Exact of loc * 'term
51 | Fold of loc * reduction_kind * 'term
53 | FwdSimpl of loc * 'term
54 | Generalize of loc * 'term * ('term, 'ident) pattern
55 | Goal of loc * int (* change current goal, argument is goal number 1-based *)
56 | Injection of loc * 'term
57 | Intros of loc * int option * 'ident list
58 | LApply of loc * 'term option * 'term
60 | LetIn of loc * 'term * 'ident
61 | Reduce of loc * reduction_kind * ('term, 'ident) pattern
63 | Replace of loc * 'term * 'term (* what, with what *)
64 | Rewrite of loc * direction * 'term * ('term, 'ident) pattern
69 | Transitivity of loc * 'term
79 (** <name, inductive/coinductive, type, constructor list>
80 * true means inductive, false coinductive *)
81 type 'term inductive_type = string * bool * 'term * (string * 'term) list
83 type search_kind = [ `Locate | `Hint | `Match | `Elim ]
85 type print_kind = [ `Env | `Coer ]
89 | WHint of loc * 'term
90 | WMatch of loc * 'term
91 | WInstance of loc * 'term
92 | WLocate of loc * string
93 | WElim of loc * 'term
96 | Print of loc * string
97 | Check of loc * 'term
100 (* | Redo of loc * int option
101 | Undo of loc * int option *)
102 (* | Print of loc * print_kind *)
103 | Search_pat of loc * search_kind * string (* searches with string pattern *)
104 | Search_term of loc * search_kind * 'term (* searches with term pattern *)
107 | Ident_alias of string * string (* identifier, uri *)
108 | Symbol_alias of string * int * string (* name, instance no, description *)
109 | Number_alias of int * string (* instance no, description *)
112 | Inductive of (string * CicAst.term) list * CicAst.term inductive_type list
113 (** parameters, list of loc * mutual inductive types *)
114 | Theorem of thm_flavour * string * CicAst.term * CicAst.term option
115 (** flavour, name, type, body
116 * - name is absent when an unnamed theorem is being proved, tipically in
118 * - body is present when its given along with the command, otherwise it
119 * will be given in proof editing mode using the tactical language
122 (string * CicAst.term) list * string * CicAst.term *
123 (string * CicAst.term) list
125 type ('term,'obj) command =
126 | Set of loc * string * string
129 * Name is needed when theorem was started without providing a name
131 | Coercion of loc * 'term
132 | Alias of loc * alias_spec
133 (** parameters, name, type, fields *)
136 type ('term, 'ident) tactical =
137 | Tactic of loc * ('term, 'ident) tactic
139 | Do of loc * int * ('term, 'ident) tactical
141 | Repeat of loc * ('term, 'ident) tactical
142 | Seq of loc * ('term, 'ident) tactical list (* sequential composition *)
143 | Then of loc * ('term, 'ident) tactical * ('term, 'ident) tactical list
144 | Tries of loc * ('term, 'ident) tactical list
145 (* try a sequence of loc * tacticals until one succeeds, fail otherwise *)
146 | Try of loc * ('term, 'ident) tactical (* try a tactical and mask failures *)
149 type ('term, 'obj, 'ident) code =
150 | Command of loc * ('term,'obj) command
151 | Macro of loc * 'term macro
152 (* Macro are substantially queries, but since we are not the kind of
153 * peolpe that like to push "start" to turn off the computer
154 * we added this command *)
155 | Tactical of loc * ('term, 'ident) tactical
157 type ('term, 'obj, 'ident) comment =
158 | Note of loc * string
159 | Code of loc * ('term, 'obj, 'ident) code
161 type ('term, 'obj, 'ident) statement =
162 | Executable of loc * ('term, 'obj, 'ident) code
163 | Comment of loc * ('term, 'obj, 'ident) comment