test branch

[helm.git] / helm / ocaml / mathql_generator / mQGUtil.ml

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+(* 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/.
+ *)
+
+(*  AUTOR: Ferruccio Guidi <fguidi@cs.unibo.it>
+ *)
+
+(* $Id$ *)
+
+module T = MQGTypes
+
+(* low level functions  *****************************************************)
+
+let string_of_position p = 
+   let ns = "http://www.cs.unibo.it/helm/schemas/schema-helm#" in
+   match p with
+      | T.MainHypothesis -> ns ^ "MainHypothesis"
+      | T.InHypothesis   -> ns ^ "InHypothesis"
+      | T.MainConclusion -> ns ^ "MainConclusion"
+      | T.InConclusion   -> ns ^ "InConclusion"
+      | T.InBody         -> ns ^ "InBody"
+      
+let string_of_sort = function
+   | T.Set   -> "Set"
+   | T.Prop  -> "Prop"
+   | T.Type  -> "Type"
+   | T.CProp -> "CProp"
+
+let string_of_depth = string_of_int
+
+let mathql_of_position = function
+   | T.MainHypothesis -> "$MH"
+   | T.InHypothesis   -> "$IH"
+   | T.MainConclusion -> "$MC"
+   | T.InConclusion   -> "$IC"
+   | T.InBody         -> "$IB"
+      
+let mathql_of_sort = function
+   | T.Set   -> "$SET"
+   | T.Prop  -> "$PROP"
+   | T.Type  -> "$TYPE"
+   | T.CProp -> "$CPROP"
+
+let mathql_of_depth = string_of_int
+
+let mathql_of_uri u = u
+
+let mathql_of_specs out l =
+   let rec iter f = function 
+      | []        -> ()
+      | [s]       -> out "\""; out (f s); out "\""
+      | s :: tail -> out "\""; out (f s); out "\", "; iter f tail
+   in
+   let txt_uri l = out "{"; iter mathql_of_uri l; out "} " in
+   let txt_pos l = out "{"; iter mathql_of_position l; out "} " in
+   let txt_sort l = out "{"; iter mathql_of_sort l; out "} " in
+   let txt_depth l = out "{"; iter mathql_of_depth l; out "} " in
+   let txt_spec = function
+      | T.MustObj  (u, p, d) -> out "mustobj  "; txt_uri u; txt_pos p; txt_depth d; out "\n" 
+      | T.MustSort (s, p, d) -> out "mustsort "; txt_sort s; txt_pos p; txt_depth d; out "\n" 
+      | T.MustRel  (   p, d) -> out "mustrel  "; txt_pos p; txt_depth d; out "\n" 
+      | T.OnlyObj  (u, p, d) -> out "onlyobj  "; txt_uri u; txt_pos p; txt_depth d; out "\n" 
+      | T.OnlySort (s, p, d) -> out "onlysort "; txt_sort s; txt_pos p; txt_depth d; out "\n" 
+      | T.OnlyRel  (   p, d) -> out "onlyrel  "; txt_pos p; txt_depth d; out "\n" 
+      | T.Universe (   p   ) -> out "universe "; txt_pos p; out "\n" 
+   in   
+   List.iter txt_spec l  
+
+let position_of_mathql = function
+   | "$MH" -> T.MainHypothesis 
+   | "$IH" -> T.InHypothesis
+   | "$MC" -> T.MainConclusion
+   | "$IC" -> T.InConclusion
+   | "$IB" -> T.InBody
+   | _     -> raise Parsing.Parse_error 
+
+let sort_of_mathql = function
+   | "$SET"   -> T.Set 
+   | "$PROP"  -> T.Prop
+   | "$TYPE"  -> T.Type
+   | "$CPROP" -> T.CProp
+   | _       -> raise Parsing.Parse_error 
+
+let depth_of_mathql s =
+   try 
+      let d = int_of_string s in
+      if d < 0 then raise (Failure "") else d
+   with Failure _ -> raise Parsing.Parse_error
+
+let uri_of_mathql s = s
+
+(* high level functions  ****************************************************)
+
+let text_of_position = function
+   | `MainHypothesis _ -> "MainHypothesis"
+   | `MainConclusion _ -> "MainConclusion"
+   | `InHypothesis     -> "InHypothesis" 
+   | `InConclusion     -> "InConclusion" 
+   | `InBody           -> "InBody" 
+
+let text_of_depth pos no_depth_text = match pos with
+   | `MainHypothesis (Some d)
+   | `MainConclusion (Some d) -> string_of_int d
+   | _                        -> no_depth_text
+
+let text_of_sort = function
+   | T.Set   -> "Set"
+   | T.Prop  -> "Prop"
+   | T.Type  -> "Type"
+   | T.CProp -> "CProp"
+
+let is_main_position = function
+   | `MainHypothesis _
+   | `MainConclusion _ -> true
+   | _                 -> false
+
+let is_conclusion = function
+   | `MainConclusion _ 
+   | `InConclusion     -> true
+   | _                 -> false
+
+let set_full_position pos depth = match pos with
+   | `MainHypothesis _ -> `MainHypothesis depth
+   | `MainConclusion _ -> `MainConclusion depth
+   | _                 -> pos
+
+let set_main_position pos depth = match pos with
+   | `MainHypothesis _ -> `MainHypothesis depth
+   | `MainConclusion _ -> `MainConclusion depth