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diff --git a/libxsde/xsde/cxx/parser/map.hxx b/libxsde/xsde/cxx/parser/map.hxx
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+// file      : xsde/cxx/parser/map.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef XSDE_CXX_PARSER_MAP_HXX
+#define XSDE_CXX_PARSER_MAP_HXX
+
+#include <stddef.h> // size_t
+
+#include <xsde/cxx/config.hxx>
+#include <xsde/cxx/hashmap.hxx>
+
+#include <xsde/cxx/parser/elements.hxx>
+
+namespace xsde
+{
+  namespace cxx
+  {
+    namespace parser
+    {
+      // Parser map. Used in the polymorphic document parsing.
+      //
+      class parser_map
+      {
+      public:
+        // The type argument is the type name and namespace from the
+        // xsi:type attribute or substitution group map in the form
+        // "<name> <namespace>" with the space and namespace part
+        // absent if the type does not have a namespace.
+        //
+        virtual parser_base*
+        find (const char* type) const = 0;
+
+        // Reset the parsers this map contains.
+        //
+        virtual void
+        reset () const = 0;
+
+        virtual
+        ~parser_map ();
+      };
+
+      // Default parser map implementation.
+      //
+      class parser_map_impl: public parser_map
+      {
+      public:
+#ifndef XSDE_EXCEPTIONS
+        enum error
+        {
+          error_none,
+          error_no_memory
+        };
+
+        error
+        _error () const;
+#endif
+
+      public:
+        parser_map_impl (size_t buckets);
+
+        void
+        insert (parser_base&);
+
+        virtual parser_base*
+        find (const char* type) const;
+
+        virtual void
+        reset () const;
+
+      private:
+        parser_map_impl (const parser_map_impl&);
+
+        parser_map_impl&
+        operator= (const parser_map_impl&);
+
+      private:
+        hashmap map_;
+      };
+    }
+  }
+}
+
+#include <xsde/cxx/parser/map.ixx>
+
+#endif  // XSDE_CXX_PARSER_MAP_HXX