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+// file : examples/cxx/tree/custom/double/double-custom.cxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+// Include xml-schema.hxx instead of double-custom.hxx here.
+//
+#include "xml-schema.hxx"
+
+#include <limits>
+#include <locale>
+#include <sstream>
+
+#include <xsd/cxx/ro-string.hxx>
+#include <xsd/cxx/zc-istream.hxx>
+
+using namespace std;
+
+// Parsing.
+//
+namespace xsd
+{
+ namespace cxx
+ {
+ namespace tree
+ {
+ double traits<double, char, schema_type::double_>::
+ create (const std::string& s,
+ const xercesc::DOMElement*,
+ flags,
+ type*)
+ {
+ // This type cannot have whitespaces in its values. As result we
+ // don't need to waste time collapsing whitespaces. All we need to
+ // do is trim the string representation which can be done without
+ // copying.
+ //
+ ro_string<char> tmp (s);
+ trim (tmp);
+
+ zc_istream<char> is (tmp);
+ is.imbue (locale::classic ());
+
+ double t;
+ is >> t;
+
+ return t;
+ }
+ }
+ }
+}
+
+// Serialization.
+//
+namespace XERCES_CPP_NAMESPACE
+{
+ void
+ operator<< (xercesc::DOMElement& e, const xml_schema::as_double& d)
+ {
+ ostringstream os;
+ os.imbue (locale::classic ());
+
+ os.precision (2);
+ os << fixed << d.x;
+
+ e << os.str ();
+ }
+
+ void
+ operator<< (xercesc::DOMAttr& a, const xml_schema::as_double& d)
+ {
+ ostringstream os;
+ os.imbue (locale::classic ());
+
+ os.precision (2);
+ os << fixed << d.x;
+
+ a << os.str ();
+ }
+}
+
+namespace xsd
+{
+ namespace cxx
+ {
+ namespace tree
+ {
+ void
+ operator<< (xml_schema::list_stream& ls,
+ const xml_schema::as_double& d)
+ {
+ ls.os_.imbue (locale::classic ());
+ ls.os_.precision (2);
+ ls.os_ << fixed << d.x;
+ }
+ }
+ }
+}