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/
28 (** CIC Notation Parse Tree *)
30 type binder_kind = [ `Lambda | `Pi | `Exists | `Forall ]
31 type induction_kind = [ `Inductive | `CoInductive ]
32 type sort_kind = [ `Prop | `Set | `Type of CicUniv.universe | `CProp of
33 CicUniv.universe | `NType of string |`NCProp of string]
34 type fold_kind = [ `Left | `Right ]
36 type location = Stdpp.location
38 let (x, y) = HExtlib.loc_of_floc floc in
39 failwith (Printf.sprintf "Error at characters %d - %d: %s" x y msg)
41 type href = UriManager.uri
43 type child_pos = [ `Left | `Right | `Inner ]
46 [ `Loc of location (* source file location *)
47 | `IdRef of string (* ACic pointer *)
49 | `XmlAttrs of (string option * string * string) list
50 (* list of XML attributes: namespace, name, value *)
51 | `Raw of string (* unparsed version *)
60 type case_indtype = string * href option
62 type 'term capture_variable = 'term * 'term option
64 (** To be increased each time the term type below changes, used for "safe"
71 | AttributedTerm of term_attribute * term
74 | Binder of binder_kind * term capture_variable * term (* kind, name, body *)
75 | Case of term * case_indtype option * term option *
76 (case_pattern * term) list
77 (* what to match, inductive type, out type, <pattern,action> list *)
79 | LetIn of term capture_variable * term * term (* name, body, where *)
80 | LetRec of induction_kind * (term capture_variable list * term capture_variable * term * int) list * term
81 (* (params, name, body, decreasing arg) list, where *)
82 | Ident of string * subst list option
83 (* literal, substitutions.
84 * Some [] -> user has given an empty explicit substitution list
85 * None -> user has given no explicit substitution list *)
86 | Implicit of [`Vector | `JustOne | `Tagged of string]
87 | Meta of int * meta_subst list
88 | Num of string * int (* literal, instance *)
90 | Symbol of string * int (* canonical name, instance *)
92 | UserInput (* place holder for user input, used by MatitaConsole, not to be
94 | Uri of string * subst list option (* as Ident, for long names *)
95 | NRef of NReference.reference
97 (* Syntax pattern extensions *)
100 | Layout of layout_pattern
102 | Magic of magic_term
103 | Variable of pattern_variable
105 (* name, type. First component must be Ident or Variable (FreshVar _) *)
107 and meta_subst = term option
108 and subst = string * term
110 Pattern of string * href option * term capture_variable list
113 and box_kind = H | V | HV | HOV
114 and box_spec = box_kind * bool * bool (* kind, spacing, indent *)
119 | Below of term * term
120 | Above of term * term
121 | Frac of term * term
122 | Over of term * term
123 | Atop of term * term
124 | InfRule of term * term * term
125 (* | array of term * literal option * literal option
126 |+ column separator, row separator +| *)
127 | Maction of term list
129 | Root of term * term (* argument, index *)
131 | Box of box_spec * term list
133 | Mstyle of (string * string) list * term list
134 | Mpadded of (string * string) list * term list
138 | List0 of term * literal option (* pattern, separator *)
139 | List1 of term * literal option (* pattern, separator *)
143 | Fold of fold_kind * term * string list * term
144 (* base case pattern, recursive case bound names, recursive case pattern *)
145 | Default of term * term (* "some" case pattern, "none" case pattern *)
147 | If of term * term * term (* test, pattern if true, pattern if false *)
149 and term_level = Self of int | Level of int
151 and pattern_variable =
152 (* level 1 and 2 variables *)
155 | TermVar of string * term_level
157 (* level 1 variables *)
158 | Ascription of term * string
160 (* level 2 variables *)
163 type argument_pattern =
164 | IdentArg of int * string (* eta-depth, name *)
166 type cic_appl_pattern =
167 | UriPattern of UriManager.uri
168 | NRefPattern of NReference.reference
169 | VarPattern of string
171 | ApplPattern of cic_appl_pattern list
173 (** <name, inductive/coinductive, type, constructor list>
174 * true means inductive, false coinductive *)
175 type 'term inductive_type = string * bool * 'term * (string * 'term) list
178 | Inductive of 'term capture_variable list * 'term inductive_type list
179 (** parameters, list of loc * mutual inductive types *)
180 | Theorem of Cic.object_flavour * string * 'term * 'term option
181 (** flavour, name, type, body
182 * - name is absent when an unnamed theorem is being proved, tipically in
184 * - body is present when its given along with the command, otherwise it
185 * will be given in proof editing mode using the tactical language,
186 * unless the flavour is an Axiom
188 | Record of 'term capture_variable list * string * 'term * (string * 'term * bool * int) list
189 (** left parameters, name, type, fields *)
191 (** {2 Standard precedences} *)