1 (* Copyright (C) 2005, 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 (** CIC Notation Parse Tree *)
28 type binder_kind = [ `Lambda | `Pi | `Exists | `Forall ]
29 type induction_kind = [ `Inductive | `CoInductive ]
30 type sort_kind = [ `Prop | `Set | `Type | `CProp ]
31 type fold_kind = [ `Left | `Right ]
33 type location = Lexing.position * Lexing.position
34 (* cut and past from CicAst.loc_of_floc *)
35 let loc_of_floc = function
36 | { Lexing.pos_cnum = loc_begin }, { Lexing.pos_cnum = loc_end } ->
41 [ `Loc of location (* source file location *)
42 | `IdRef of string (* ACic pointer *)
54 | AttributedTerm of term_attribute * term
57 | Binder of binder_kind * capture_variable * term (* kind, name, body *)
58 | Case of term * string option * term option * (case_pattern * term) list
59 (* what to match, inductive type, out type, <pattern,action> list *)
60 | LetIn of capture_variable * term * term (* name, body, where *)
61 | LetRec of induction_kind * (capture_variable * term * int) list * term
62 (* (name, body, decreasing argument) list, where *)
63 | Ident of string * subst list option
64 (* literal, substitutions.
65 * Some [] -> user has given an empty explicit substitution list
66 * None -> user has given no explicit substitution list *)
68 | Meta of int * meta_subst list
69 | Num of string * int (* literal, instance *)
71 | Symbol of string * int (* canonical name, instance *)
73 | UserInput (* place holder for user input, used by MatitaConsole, not to be
75 | Uri of string * subst list option (* as Ident, for long names *)
77 (* Syntax pattern extensions *)
80 | Layout of layout_pattern
82 | Variable of pattern_variable
84 (* name, type. First component must be Ident or Variable (FreshVar _) *)
85 and capture_variable = term * term option
87 and meta_subst = term option
88 and subst = string * term
89 and case_pattern = string * capture_variable list
96 | Below of term * term
97 | Above of term * term
100 | Atop of term * term
101 (* | array of term * literal option * literal option
102 |+ column separator, row separator +| *)
104 | Root of term * term (* argument, index *)
106 | Box of box_kind * term list
110 | List0 of term * literal option
111 | List1 of term * literal option
115 | Fold of fold_kind * term * string list * term
116 (* base case pattern, recursive case bound names, recursive case pattern *)
117 | Default of term * term (* "some" case pattern, "none" case pattern *)
119 and pattern_variable =
120 (* level 1 and 2 variables *)
125 (* level 1 variables *)
126 | Ascription of term * string
128 (* level 2 variables *)
131 type argument_pattern =
132 | IdentArg of int * string (* eta-depth, name *)
134 type cic_appl_pattern =
135 | UriPattern of string
136 | VarPattern of string
137 | ApplPattern of cic_appl_pattern list
139 type phrase = (* TODO hackish: replace with TacticAst.statement or similar *)
141 | Notation of term * Gramext.g_assoc option * int option * term
142 (* level 1 pattern, associativity, precedence, level 2 pattern *)
143 | Interpretation of (string * argument_pattern list) * cic_appl_pattern
144 | Render of UriManager.uri