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 | `NType of string |`NCProp of string]
33 type fold_kind = [ `Left | `Right ]
35 type location = Stdpp.location
37 let (x, y) = HExtlib.loc_of_floc floc in
38 failwith (Printf.sprintf "Error at characters %d - %d: %s" x y msg)
40 type href = NReference.reference
42 type child_pos = [ `Left | `Right | `Inner ]
45 [ `Loc of location (* source file location *)
46 | `IdRef of string (* ACic pointer *)
48 | `XmlAttrs of (string option * string * string) list
49 (* list of XML attributes: namespace, name, value *)
50 | `Raw of string (* unparsed version *)
59 type case_indtype = string * href option
61 type 'term capture_variable = 'term * 'term option
63 (** To be increased each time the term type below changes, used for "safe"
70 | AttributedTerm of term_attribute * term
73 | Binder of binder_kind * term capture_variable * term (* kind, name, body *)
74 | Case of term * case_indtype option * term option *
75 (case_pattern * term) list
76 (* what to match, inductive type, out type, <pattern,action> list *)
78 | LetIn of term capture_variable * term * term (* name, body, where *)
79 | LetRec of induction_kind * (term capture_variable list * term capture_variable * term * int) list * term
80 (* (params, name, body, decreasing arg) list, where *)
81 | Ident of string * subst list option
82 (* literal, substitutions.
83 * Some [] -> user has given an empty explicit substitution list
84 * None -> user has given no explicit substitution list *)
85 | Implicit of [`Vector | `JustOne | `Tagged of string]
86 | Meta of int * meta_subst list
87 | Num of string * int (* literal, instance *)
89 | Symbol of string * int (* canonical name, instance *)
91 | UserInput (* place holder for user input, used by MatitaConsole, not to be
93 | Uri of string * subst list option (* as Ident, for long names *)
94 | NRef of NReference.reference
98 (* Syntax pattern extensions *)
101 | Layout of layout_pattern
103 | Magic of magic_term
104 | Variable of pattern_variable
106 (* name, type. First component must be Ident or Variable (FreshVar _) *)
108 and meta_subst = term option
109 and subst = string * term
111 Pattern of string * href option * term capture_variable list
114 and box_kind = H | V | HV | HOV
115 and box_spec = box_kind * bool * bool (* kind, spacing, indent *)
120 | Below of term * term
121 | Above of term * term
122 | Frac of term * term
123 | Over of term * term
124 | Atop of term * term
125 | InfRule of term * term * term
126 (* | array of term * literal option * literal option
127 |+ column separator, row separator +| *)
128 | Maction of term list
130 | Root of term * term (* argument, index *)
132 | Box of box_spec * term list
134 | Mstyle of (string * string) list * term list
135 | Mpadded of (string * string) list * term list
139 | List0 of term * literal option (* pattern, separator *)
140 | List1 of term * literal option (* pattern, separator *)
144 | Fold of fold_kind * term * string list * term
145 (* base case pattern, recursive case bound names, recursive case pattern *)
146 | Default of term * term (* "some" case pattern, "none" case pattern *)
148 | If of term * term * term (* test, pattern if true, pattern if false *)
150 and term_level = Self of int | Level of int
152 and pattern_variable =
153 (* level 1 and 2 variables *)
156 | TermVar of string * term_level
158 (* level 1 variables *)
159 | Ascription of term * string
161 (* level 2 variables *)
164 type argument_pattern =
165 | IdentArg of int * string (* eta-depth, name *)
167 type cic_appl_pattern =
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 NCic.def_flavour * string * 'term * 'term option * NCic.def_pragma
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} *)