+++ /dev/null
-(* Copyright (C) 2000, 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://cs.unibo.it/helm/.
- *)
-
-(******************************************************************************)
-(* *)
-(* PROJECT HELM *)
-(* *)
-(* Ferruccio Guidi <fguidi@cs.unibo.it> *)
-(* Domenico Lordi <lordi@cs.unibo.it> *)
-(* 30/04/2002 *)
-(* *)
-(* *)
-(******************************************************************************)
-
-exception MQInvalidURI of string
-exception MQConnectionFailed of string
-exception MQInvalidConnection of string
-
-(* Input types **************************************************************)
-(* main type is mquery *)
-
-type mqrvar = string (* name *)
-
-type mqsvar = string (* name *)
-
-type mquptoken =
- | MQString of string (* a constant string *)
- | MQSlash (* a slash: '/' *)
- | MQAnyChr (* Any single character: '?' *)
- | MQAst (* single asterisk: '*' *)
- | MQAstAst (* double asterisk: '**' *)
-
-type mqup = mquptoken list (* uri pattern (helper) *)
-
-type mqfi = int option * int option
-
-type mqtref = string * mqup * string * mqfi (* HELM preamble,
- uri pattern,
- extension,
- fragment identifier *)
-
-type mqpattern = mqtref (* constant pattern *)
-
-type mqfunc =
- | MQName (* NAME *)
-
-type mqstring =
- | MQCons of string (* constant *)
- | MQFunc of mqfunc * mqrvar (* function, rvar *)
- | MQRVar of mqrvar (* rvar *)
- | MQSVar of mqsvar (* svar *)
- | MQMConclusion (* main conclusion *)
- | MQConclusion (* inner conclusion *)
-
-type mqbool =
- | MQTrue
- | MQFalse
- | MQAnd of mqbool * mqbool
- | MQOr of mqbool * mqbool
- | MQNot of mqbool
- | MQIs of mqstring * mqstring (* operands *)
-
-type mqlist =
- | MQSelect of mqrvar * mqlist * mqbool (* rvar, list, boolean *)
- | MQUse of mqlist * mqsvar (* list, Position attribute *)
- | MQPattern of mqpattern (* pattern *)
- | MQUnion of mqlist * mqlist (* *)
- | MQIntersect of mqlist * mqlist (* *)
-
-type mquery =
- | MQList of mqlist
-
-(* Output types *************************************************************)
-(* main type is mqresult *)
-
-(* TODO: usare le uri in questo formato *)
-type mquref = UriManager.uri * mqfi (* uri, fragment identifier *)
-
-type mqrefs = mqtref list (* list of references (helper) *)
-
-type mqresult =
- | MQRefs of mqrefs