1 (* Copyright (C) 2004-2005, 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 exception Value_not_found of string
31 | TermValue of CicNotationPt.term
32 | StringValue of string
34 | OptValue of value option
35 | ListValue of value list
41 | OptType of value_type
42 | ListType of value_type
44 type declaration = string * value_type
45 type binding = string * (value_type * value)
48 (** {2 Environment lookup} *)
50 val lookup_value: t -> string -> value
51 val lookup_num: t -> string -> string
52 val lookup_string: t -> string -> string
53 val lookup_term: t -> string -> CicNotationPt.term
55 (** {2 Bindings mangling} *)
57 val opt_binding_some: binding -> binding (* v -> Some v *)
58 val opt_binding_none: binding -> binding (* v -> None *)
60 val opt_binding_of_name: declaration -> binding (* None binding *)
61 val list_binding_of_name: declaration -> binding (* [] binding *)
63 val opt_declaration: declaration -> declaration (* t -> OptType t *)
64 val list_declaration: declaration -> declaration (* t -> ListType t *)