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 ]
28 (* type 'term pattern = Pattern of 'term *)
30 (* everywhere includes goal and hypotheses *)
31 type 'term pattern = [ `Goal | `Everywhere ]
33 (* when an 'ident option is None, the default is to apply the tactic
34 to the current goal *)
36 type ('term, 'ident) tactic =
37 | LocatedTactic of CicAst.location * ('term, 'ident) tactic
43 | Change of 'term * 'term * 'ident option (* what, with what, where *)
44 | Change_pattern of 'term pattern * 'term * 'ident option
45 (* what, with what, where *)
48 | Decompose of 'ident * 'ident list (* where, which principles *)
49 | Discriminate of 'ident
50 | Elim of 'term * 'term option (* what to elim, which principle to use *)
54 | Fold of reduction_kind * 'term
58 | Intros of int option * 'ident list
60 | LetIn of 'term * 'ident
61 (* | Named_intros of 'ident list (* joined with Intros above *) *)
62 (* | Reduce of reduction_kind * 'term pattern * 'ident option (* what, where *) *)
63 | Reduce of reduction_kind * ('term list * 'term pattern) option
64 (* kind, (what, where)
65 * if second argument is None, reduction is applied to the current goal,
66 * otherwise to each occurrence of terms given in list occuring in term
69 | Replace of 'term * 'term (* what, with what *)
70 | Replace_pattern of 'term pattern * 'term
71 | Rewrite of direction * 'term * 'ident option
76 | Transitivity of 'term
87 (** <name, inductive/coinductive, type, constructor list>
88 * true means inductive, false coinductive *)
89 type 'term inductive_type = string * bool * 'term * (string * 'term) list
91 type search_kind = [ `Locate | `Hint | `Match | `Elim ]
93 type print_kind = [ `Env ]
97 | Baseuri of string option (** get/set base uri *)
98 | Basedir of string option (** get/set base dir *)
100 | Search_pat of search_kind * string (* searches with string pattern *)
101 | Search_term of search_kind * 'term (* searches with term pattern *)
103 | Qed of string option
105 * Name is needed when theorem was started without providing a name
108 | Inductive of (string * 'term) list * 'term inductive_type list
109 (** parameters, list of mutual inductive types *)
110 | Theorem of thm_flavour * string option * 'term * 'term option
111 (** flavour, name, type, body
112 * - name is absent when an unnamed theorem is being proved, tipically in
114 * - body is present when its given along with the command, otherwise it
115 * will be given in proof editing mode using the tactical language
120 | Print of print_kind
122 type ('term, 'ident) tactical =
123 | LocatedTactical of CicAst.location * ('term, 'ident) tactical
125 | Tactic of ('term, 'ident) tactic
126 | Command of 'term command
129 | Do of int * ('term, 'ident) tactical
131 | Repeat of ('term, 'ident) tactical
132 | Seq of ('term, 'ident) tactical list (* sequential composition *)
133 | Then of ('term, 'ident) tactical * ('term, 'ident) tactical list
134 | Tries of ('term, 'ident) tactical list
135 (* try a sequence of tacticals until one succeeds, fail otherwise *)
136 | Try of ('term, 'ident) tactical (* try a tactical and mask failures *)