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[helm.git] / components / syntax_extensions / make_table.ml

diff --git a/components/syntax_extensions/make_table.ml b/components/syntax_extensions/make_table.ml
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+(* Copyright (C) 2004, 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/
+ *)
+
+(* $Id$ *)
+
+open Printf
+
+let debug = false
+let debug_print s = if debug then prerr_endline (Lazy.force s)
+
+  (* source files for tables xml parsing (if unmarshall=false) *)
+let xml_tables = [
+(*
+  `Entities, "/usr/share/gtkmathview/entities-table.xml";
+  `Dictionary, "/usr/share/editex/dictionary-tex.xml"
+*)
+  `Entities, "data/entities-table.xml";
+  `Dictionary, "data/dictionary-tex.xml";
+  `Entities, "data/extra-entities.xml";
+  (** extra-entities.xml should be the last one since it is used to override
+   * previous mappings. Add there overrides as needed. *)
+]
+
+let iter_gen record_tag name_field value_field f fname =
+  let start_element tag attrs =
+    if tag = record_tag then
+      try
+        let name = List.assoc name_field attrs in
+        let value = List.assoc value_field attrs in
+        f name value
+      with Not_found -> ()
+  in
+  let callbacks = {
+    XmlPushParser.default_callbacks with
+      XmlPushParser.start_element = Some start_element
+  } in
+  let xml_parser = XmlPushParser.create_parser callbacks in
+  XmlPushParser.parse xml_parser (`File fname)
+
+let iter_entities_file    = iter_gen "entity" "name" "value"
+let iter_dictionary_file  = iter_gen "entry" "name" "val"
+
+let parse_from_xml () =
+  let macro2utf8 = Hashtbl.create 2000 in
+  let add_macro macro utf8 =
+    debug_print (lazy (sprintf "Adding macro %s = '%s'" macro utf8));
+    Hashtbl.replace macro2utf8 macro utf8
+  in
+  let fill_table () =
+    List.iter
+      (fun (typ, fname) ->
+        match typ with
+        | `Entities -> iter_entities_file add_macro fname
+        | `Dictionary -> iter_dictionary_file add_macro fname)
+      xml_tables
+  in
+  fill_table ();
+  macro2utf8
+
+let main () =
+  let oc = open_out Sys.argv.(1) in
+  let oc_doc = open_out Sys.argv.(2) in
+  output_string oc "(* GENERATED by make_table: DO NOT EDIT! *)\n";
+  output_string oc_doc "(* GENERATED by make_table: DO NOT EDIT! *)\n";
+  output_string oc "let macro2utf8 = Hashtbl.create 2000\n";
+  output_string oc "let utf82macro = Hashtbl.create 2000\n";
+  output_string oc "let data = [\n";
+  let macro2utf8 = parse_from_xml () in
+  Hashtbl.iter
+    (fun macro utf8 ->
+            fprintf oc "  \"%s\", \"%s\";\n" macro (String.escaped utf8);
+            fprintf oc_doc "\\%s %s\n" macro utf8)
+    macro2utf8;
+  output_string oc "  ];;\n";
+  output_string oc "let _ =\n";
+  output_string oc "  List.iter\n";
+  output_string oc "    (fun (macro, utf8) ->\n";
+  output_string oc "      Hashtbl.replace macro2utf8 macro utf8;\n";
+  output_string oc "      Hashtbl.replace utf82macro utf8 macro)\n";
+  output_string oc "    data;;\n";
+  close_out oc;
+  close_out oc_doc
+
+let _ = main ()
+