Initial revision

[helm.git] / helm / interface / cicParser3.ml

diff --git a/helm/interface/cicParser3.ml b/helm/interface/cicParser3.ml
index d0c31b0f0361c0ed0fa9344e6cd1f9f7800cd9bd..54b417fa1b591808f38ff49a2e87f40f11c52db9 100644 (file)
--- a/helm/interface/cicParser3.ml
+++ b/helm/interface/cicParser3.ml
@@ -1,3 +1,28 @@
+(* 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                                 *)
@@ -476,6 +501,29 @@ class eltype_lambda =
   end
 ;;
 
+class eltype_letin =
+  object (self)
+
+    inherit cic_term
+
+    method to_cic_term =
+     let n = self#node in
+      let sons = n#sub_nodes
+      and id = string_of_xml_attr (n#attribute "id") in
+       match sons with
+          [s ; t] when
+            s#node_type = Pxp_document.T_element "term" &&
+            t#node_type = Pxp_document.T_element "letintarget" ->
+             let name = cic_attr_of_xml_attr (t#attribute "binder")
+             and source = s#extension#to_cic_term
+             and target = t#extension#to_cic_term in
+              let res = Cic.ALetIn (id,ref None,name,source,target) in
+               register_id id res ;
+               res
+        | _  -> raise (IllFormedXml 12)
+  end
+;;
+
 (* The definition of domspec, an hashtable that maps each node type to the *)
 (* object that must be linked to it. Used by markup.                       *)
 
@@ -493,6 +541,7 @@ let domspec =
       "CAST",          (new D.element_impl (new eltype_cast)) ;
       "PROD",          (new D.element_impl (new eltype_prod)) ;
       "LAMBDA",        (new D.element_impl (new eltype_lambda)) ;
+      "LETIN",         (new D.element_impl (new eltype_letin)) ;
       "APPLY",         (new D.element_impl (new eltype_apply)) ;
       "CONST",         (new D.element_impl (new eltype_const)) ;
       "ABST",          (new D.element_impl (new eltype_abst)) ;