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+// file      : xsd/cxx/tree/serialization.txx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#include <string>
+#include <sstream>
+
+#include <xercesc/dom/DOMAttr.hpp>
+#include <xercesc/dom/DOMElement.hpp>
+
+#include <xsd/cxx/xml/string.hxx>        // xml::{string, transcode}
+#include <xsd/cxx/xml/dom/serialization-header.hxx>  // dom::{prefix, clear}
+
+#include <xsd/cxx/tree/elements.hxx>
+#include <xsd/cxx/tree/types.hxx>
+#include <xsd/cxx/tree/list.hxx>
+
+// The only way to make the following serialization operators
+// for fundamental types work is to defined them in the xercesc
+// namespace so that they can be found by ADL. Placing them into
+// the global namespace does not work.
+//
+
+namespace XERCES_CPP_NAMESPACE
+{
+  // Serialization of std::basic_string and C string. Used in other
+  // serializers. Also used to serialize enumerators.
+  //
+  template <typename C>
+  void
+  operator<< (xercesc::DOMElement& e, const C* s)
+  {
+    xsd::cxx::xml::dom::clear<char> (e);
+    e.setTextContent (xsd::cxx::xml::string (s).c_str ());
+  }
+
+  template <typename C>
+  void
+  operator<< (xercesc::DOMAttr& a, const C* s)
+  {
+    a.setValue (xsd::cxx::xml::string (s).c_str ());
+  }
+
+  // We duplicate the code above instead of delegating in order to
+  // allow the xml::string type to take advantage of cached string
+  // sizes.
+  //
+  template <typename C>
+  void
+  operator<< (xercesc::DOMElement& e, const std::basic_string<C>& s)
+  {
+    xsd::cxx::xml::dom::clear<char> (e);
+    e.setTextContent (xsd::cxx::xml::string (s).c_str ());
+  }
+
+  template <typename C>
+  void
+  operator<< (xercesc::DOMAttr& a, const std::basic_string<C>& s)
+  {
+    a.setValue (xsd::cxx::xml::string (s).c_str ());
+  }
+}
+
+namespace xsd
+{
+  namespace cxx
+  {
+    namespace tree
+    {
+      // List serialization operators for std::basic_string and C string.
+      //
+
+      template <typename C>
+      void
+      operator<< (list_stream<C>& ls, const C* s)
+      {
+        ls.os_ << s;
+      }
+
+      template <typename C>
+      void
+      operator<< (list_stream<C>& ls, const std::basic_string<C>& s)
+      {
+        ls.os_ << s;
+      }
+
+      // Insertion operators for type.
+      //
+      inline void
+      operator<< (xercesc::DOMElement& e, const type&)
+      {
+        xml::dom::clear<char> (e);
+      }
+
+      inline void
+      operator<< (xercesc::DOMAttr&, const type&)
+      {
+      }
+
+      template <typename C>
+      inline void
+      operator<< (list_stream<C>&, const type&)
+      {
+      }
+
+      // Insertion operators for simple_type.
+      //
+      template <typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const simple_type<B>&)
+      {
+        xml::dom::clear<char> (e);
+      }
+
+      template <typename B>
+      inline void
+      operator<< (xercesc::DOMAttr&, const simple_type<B>&)
+      {
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>&, const simple_type<B>&)
+      {
+      }
+
+      // Insertion operators for list.
+      //
+      template <typename C, typename T, schema_type::value ST, bool fund>
+      void
+      operator<< (xercesc::DOMElement& e, const list<T, C, ST, fund>& v)
+      {
+        xml::dom::clear<char> (e);
+
+        std::basic_ostringstream<C> os;
+        list_stream<C> ls (os, e);
+
+        ls << v;
+
+        e << os.str ();
+      }
+
+      template <typename C, typename T, schema_type::value ST, bool fund>
+      void
+      operator<< (xercesc::DOMAttr& a, const list<T, C, ST, fund>& v)
+      {
+        std::basic_ostringstream<C> os;
+        list_stream<C> ls (os, *a.getOwnerElement ());
+
+        ls << v;
+
+        a << os.str ();
+      }
+
+      template <typename C, typename T, schema_type::value ST, bool fund>
+      void
+      operator<< (list_stream<C>& ls, const list<T, C, ST, fund>& v)
+      {
+        for (typename list<T, C, ST, fund>::const_iterator
+               b (v.begin ()), e (v.end ()), i (b); i != e; ++i)
+        {
+          if (i != b)
+            ls.os_ << C (' ');
+
+          ls << *i;
+        }
+      }
+
+      // Specializations for double and decimal.
+      //
+      template <typename C, typename T, bool fund>
+      void
+      operator<< (list_stream<C>& ls,
+                  const list<T, C, schema_type::double_, fund>& v)
+      {
+        for (typename list<T, C, schema_type::double_, fund>::const_iterator
+               b (v.begin ()), e (v.end ()), i (b); i != e; ++i)
+        {
+          if (i != b)
+            ls.os_ << C (' ');
+
+          ls << as_double<T> (*i);
+        }
+      }
+
+      template <typename C, typename T, bool fund>
+      void
+      operator<< (list_stream<C>& ls,
+                  const list<T, C, schema_type::decimal, fund>& v)
+      {
+        for (typename list<T, C, schema_type::decimal, fund>::const_iterator
+               b (v.begin ()), e (v.end ()), i (b); i != e; ++i)
+        {
+          if (i != b)
+            ls.os_ << C (' ');
+
+          ls << as_decimal<T> (*i);
+        }
+      }
+
+
+      // Insertion operators for fundamental_base.
+      //
+      template <typename T, typename C, typename B, schema_type::value ST>
+      void
+      operator<< (xercesc::DOMElement& e,
+                  const fundamental_base<T, C, B, ST>& x)
+      {
+        const T& r (x);
+        e << r;
+      }
+
+      template <typename T, typename C, typename B, schema_type::value ST>
+      void
+      operator<< (xercesc::DOMAttr& a, const fundamental_base<T, C, B, ST>& x)
+      {
+        const T& r (x);
+        a << r;
+      }
+
+      template <typename T, typename C, typename B, schema_type::value ST>
+      void
+      operator<< (list_stream<C>& ls, const fundamental_base<T, C, B, ST>& x)
+      {
+        const T& r (x);
+        ls << r;
+      }
+
+      // Specializations for double.
+      //
+      template <typename T, typename C, typename B>
+      void
+      operator<< (
+        xercesc::DOMElement& e,
+        const fundamental_base<T, C, B, schema_type::double_>& x)
+      {
+        e << as_double<T> (x);
+      }
+
+      template <typename T, typename C, typename B>
+      void
+      operator<< (
+        xercesc::DOMAttr& a,
+        const fundamental_base<T, C, B, schema_type::double_>& x)
+      {
+        a << as_double<T> (x);
+      }
+
+      template <typename T, typename C, typename B>
+      void
+      operator<< (
+        list_stream<C>& ls,
+        const fundamental_base<T, C, B, schema_type::double_>& x)
+      {
+        ls << as_double<T> (x);
+      }
+
+      // Specializations for decimal.
+      //
+      template <typename T, typename C, typename B>
+      void
+      operator<< (
+        xercesc::DOMElement& e,
+        const fundamental_base<T, C, B, schema_type::decimal>& x)
+      {
+        e << as_decimal<T> (x, x._facet_table ());
+      }
+
+      template <typename T, typename C, typename B>
+      void
+      operator<< (
+        xercesc::DOMAttr& a,
+        const fundamental_base<T, C, B, schema_type::decimal>& x)
+      {
+        a << as_decimal<T> (x, x._facet_table ());
+      }
+
+      template <typename T, typename C, typename B>
+      void
+      operator<< (
+        list_stream<C>& ls,
+        const fundamental_base<T, C, B, schema_type::decimal>& x)
+      {
+        ls << as_decimal<T> (x, x._facet_table ());
+      }
+
+      // Insertion operators for built-in types.
+      //
+
+      namespace bits
+      {
+        template <typename C, typename T>
+        void
+        insert (xercesc::DOMElement& e, const T& x)
+        {
+          std::basic_ostringstream<C> os;
+          os << x;
+          e << os.str ();
+        }
+
+        template <typename C, typename T>
+        void
+        insert (xercesc::DOMAttr& a, const T& x)
+        {
+          std::basic_ostringstream<C> os;
+          os << x;
+          a << os.str ();
+        }
+      }
+
+
+      // string
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const string<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const string<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const string<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // normalized_string
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const normalized_string<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const normalized_string<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const normalized_string<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // token
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const token<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const token<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const token<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // nmtoken
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const nmtoken<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const nmtoken<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const nmtoken<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // nmtokens
+      //
+      template <typename C, typename B, typename nmtoken>
+      inline void
+      operator<< (xercesc::DOMElement& e, const nmtokens<C, B, nmtoken>& v)
+      {
+        const list<nmtoken, C>& r (v);
+        e << r;
+      }
+
+      template <typename C, typename B, typename nmtoken>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const nmtokens<C, B, nmtoken>& v)
+      {
+        const list<nmtoken, C>& r (v);
+        a << r;
+      }
+
+      template <typename C, typename B, typename nmtoken>
+      inline void
+      operator<< (list_stream<C>& ls, const nmtokens<C, B, nmtoken>& v)
+      {
+        const list<nmtoken, C>& r (v);
+        ls << r;
+      }
+
+
+      // name
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const name<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const name<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const name<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // ncname
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const ncname<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const ncname<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const ncname<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // language
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const language<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const language<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const language<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // id
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const id<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const id<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const id<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // idref
+      //
+      template <typename T, typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const idref<T, C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename T, typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const idref<T, C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename T, typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const idref<T, C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // idrefs
+      //
+      template <typename C, typename B, typename idref>
+      inline void
+      operator<< (xercesc::DOMElement& e, const idrefs<C, B, idref>& v)
+      {
+        const list<idref, C>& r (v);
+        e << r;
+      }
+
+      template <typename C, typename B, typename idref>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const idrefs<C, B, idref>& v)
+      {
+        const list<idref, C>& r (v);
+        a << r;
+      }
+
+      template <typename C, typename B, typename idref>
+      inline void
+      operator<< (list_stream<C>& ls, const idrefs<C, B, idref>& v)
+      {
+        const list<idref, C>& r (v);
+        ls << r;
+      }
+
+
+      // uri
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const uri<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const uri<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const uri<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // qname
+      //
+      template <typename C, typename B, typename uri, typename ncname>
+      void
+      operator<< (xercesc::DOMElement& e, const qname<C, B, uri, ncname>& x)
+      {
+        std::basic_ostringstream<C> os;
+
+        if (x.qualified ())
+        {
+          std::basic_string<C> p (xml::dom::prefix (x.namespace_ (), e));
+
+          if (!p.empty ())
+            os << p << C (':');
+        }
+
+        os << x.name ();
+        e << os.str ();
+      }
+
+      template <typename C, typename B, typename uri, typename ncname>
+      void
+      operator<< (xercesc::DOMAttr& a, const qname<C, B, uri, ncname>& x)
+      {
+        std::basic_ostringstream<C> os;
+
+        if (x.qualified ())
+        {
+          std::basic_string<C> p (
+            xml::dom::prefix (x.namespace_ (), *a.getOwnerElement ()));
+
+          if (!p.empty ())
+            os << p << C (':');
+        }
+
+        os << x.name ();
+        a << os.str ();
+      }
+
+      template <typename C, typename B, typename uri, typename ncname>
+      void
+      operator<< (list_stream<C>& ls, const qname<C, B, uri, ncname>& x)
+      {
+        if (x.qualified ())
+        {
+          std::basic_string<C> p (
+            xml::dom::prefix (x.namespace_ (), ls.parent_));
+
+          if (!p.empty ())
+            ls.os_ << p << C (':');
+        }
+
+        ls.os_ << x.name ();
+      }
+
+
+      // base64_binary
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const base64_binary<C, B>& x)
+      {
+        e << x.encode ();
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const base64_binary<C, B>& x)
+      {
+        a << x.encode ();
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const base64_binary<C, B>& x)
+      {
+        ls.os_ << x.encode ();
+      }
+
+
+      // hex_binary
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const hex_binary<C, B>& x)
+      {
+        e << x.encode ();
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const hex_binary<C, B>& x)
+      {
+        a << x.encode ();
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const hex_binary<C, B>& x)
+      {
+        ls.os_ << x.encode ();
+      }
+
+
+      // entity
+      //
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMElement& e, const entity<C, B>& x)
+      {
+        bits::insert<C> (e, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const entity<C, B>& x)
+      {
+        bits::insert<C> (a, x);
+      }
+
+      template <typename C, typename B>
+      inline void
+      operator<< (list_stream<C>& ls, const entity<C, B>& x)
+      {
+        ls.os_ << x;
+      }
+
+
+      // entities
+      //
+      template <typename C, typename B, typename entity>
+      inline void
+      operator<< (xercesc::DOMElement& e, const entities<C, B, entity>& v)
+      {
+        const list<entity, C>& r (v);
+        e << r;
+      }
+
+      template <typename C, typename B, typename entity>
+      inline void
+      operator<< (xercesc::DOMAttr& a, const entities<C, B, entity>& v)
+      {
+        const list<entity, C>& r (v);
+        a << r;
+      }
+
+      template <typename C, typename B, typename entity>
+      inline void
+      operator<< (list_stream<C>& ls, const entities<C, B, entity>& v)
+      {
+        const list<entity, C>& r (v);
+        ls << r;
+      }
+    }
+  }
+}