+++ /dev/null
-(* Copyright (C) 2005, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-(** CIC Notation Parse Tree *)
-
-type binder_kind = [ `Lambda | `Pi | `Exists | `Forall ]
-type induction_kind = [ `Inductive | `CoInductive ]
-type sort_kind = [ `Prop | `Set | `Type of CicUniv.universe | `CProp ]
-type fold_kind = [ `Left | `Right ]
-
-type location = Token.flocation
-let fail floc msg =
- let (x, y) = HExtlib.loc_of_floc floc in
- failwith (Printf.sprintf "Error at characters %d - %d: %s" x y msg)
-
-type href = UriManager.uri
-
-type child_pos = [ `Left | `Right | `Inner ]
-
-type term_attribute =
- [ `Loc of location (* source file location *)
- | `IdRef of string (* ACic pointer *)
- | `Level of int * Gramext.g_assoc (* precedence, associativity *)
- | `ChildPos of child_pos (* position of l1 pattern variables *)
- | `XmlAttrs of (string option * string * string) list
- (* list of XML attributes: namespace, name, value *)
- | `Raw of string (* unparsed version *)
- ]
-
-type literal =
- [ `Symbol of string
- | `Keyword of string
- | `Number of string
- ]
-
-type case_indtype = string * href option
-
-(** To be increased each time the term type below changes, used for "safe"
- * marshalling *)
-let magic = 1
-
-type term =
- (* CIC AST *)
-
- | AttributedTerm of term_attribute * term
-
- | Appl of term list
- | Binder of binder_kind * capture_variable * term (* kind, name, body *)
- | Case of term * case_indtype option * term option *
- (case_pattern * term) list
- (* what to match, inductive type, out type, <pattern,action> list *)
- | Cast of term * term
- | LetIn of capture_variable * term * term (* name, body, where *)
- | LetRec of induction_kind * (capture_variable * term * int) list * term
- (* (name, body, decreasing argument) list, where *)
- | Ident of string * subst list option
- (* literal, substitutions.
- * Some [] -> user has given an empty explicit substitution list
- * None -> user has given no explicit substitution list *)
- | Implicit
- | Meta of int * meta_subst list
- | Num of string * int (* literal, instance *)
- | Sort of sort_kind
- | Symbol of string * int (* canonical name, instance *)
-
- | UserInput (* place holder for user input, used by MatitaConsole, not to be
- used elsewhere *)
- | Uri of string * subst list option (* as Ident, for long names *)
-
- (* Syntax pattern extensions *)
-
- | Literal of literal
- | Layout of layout_pattern
-
- | Magic of magic_term
- | Variable of pattern_variable
-
- (* name, type. First component must be Ident or Variable (FreshVar _) *)
-and capture_variable = term * term option
-
-and meta_subst = term option
-and subst = string * term
-and case_pattern = string * href option * capture_variable list
-
-and box_kind = H | V | HV | HOV
-and box_spec = box_kind * bool * bool (* kind, spacing, indent *)
-
-and layout_pattern =
- | Sub of term * term
- | Sup of term * term
- | Below of term * term
- | Above of term * term
- | Frac of term * term
- | Over of term * term
- | Atop of term * term
-(* | array of term * literal option * literal option
- |+ column separator, row separator +| *)
- | Sqrt of term
- | Root of term * term (* argument, index *)
- | Break
- | Box of box_spec * term list
- | Group of term list
-
-and magic_term =
- (* level 1 magics *)
- | List0 of term * literal option (* pattern, separator *)
- | List1 of term * literal option (* pattern, separator *)
- | Opt of term
-
- (* level 2 magics *)
- | Fold of fold_kind * term * string list * term
- (* base case pattern, recursive case bound names, recursive case pattern *)
- | Default of term * term (* "some" case pattern, "none" case pattern *)
- | Fail
- | If of term * term * term (* test, pattern if true, pattern if false *)
-
-and pattern_variable =
- (* level 1 and 2 variables *)
- | NumVar of string
- | IdentVar of string
- | TermVar of string
-
- (* level 1 variables *)
- | Ascription of term * string
-
- (* level 2 variables *)
- | FreshVar of string
-
-type argument_pattern =
- | IdentArg of int * string (* eta-depth, name *)
-
-type cic_appl_pattern =
- | UriPattern of UriManager.uri
- | VarPattern of string
- | ImplicitPattern
- | ApplPattern of cic_appl_pattern list
-
-(** {2 Standard precedences} *)
-
-let let_in_prec = 10
-let binder_prec = 20
-let apply_prec = 70
-let simple_prec = 90
-
-let let_in_assoc = Gramext.NonA
-let binder_assoc = Gramext.RightA
-let apply_assoc = Gramext.LeftA
-let simple_assoc = Gramext.NonA
-
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