Incomplete work for using Boost.Polygon to compute medial axis

xs/src/boost/test/utils/xml_printer.hpp

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+//  (C) Copyright Gennadiy Rozental 2004-2008.
+//  Distributed under the Boost Software License, Version 1.0.
+//  (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/test for the library home page.
+//
+//  File        : $RCSfile$
+//
+//  Version     : $Revision: 57992 $
+//
+//  Description : common code used by any agent serving as XML printer
+// ***************************************************************************
+
+#ifndef BOOST_TEST_XML_PRINTER_HPP_071894GER
+#define BOOST_TEST_XML_PRINTER_HPP_071894GER
+
+// Boost.Test
+#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
+#include <boost/test/utils/fixed_mapping.hpp>
+#include <boost/test/utils/custom_manip.hpp>
+#include <boost/test/utils/foreach.hpp>
+#include <boost/test/utils/basic_cstring/io.hpp>
+
+// Boost
+#include <boost/config.hpp>
+
+// STL
+#include <iostream>
+
+#include <boost/test/detail/suppress_warnings.hpp>
+
+//____________________________________________________________________________//
+
+namespace boost {
+
+namespace unit_test {
+
+// ************************************************************************** //
+// **************               xml print helpers              ************** //
+// ************************************************************************** //
+
+inline void
+print_escaped( std::ostream& where_to, const_string value )
+{
+    static fixed_mapping<char,char const*> char_type(
+        '<' , "lt",
+        '>' , "gt",
+        '&' , "amp",
+        '\'', "apos" ,
+        '"' , "quot",
+
+        0
+    );
+
+    BOOST_TEST_FOREACH( char, c, value ) {
+        char const* ref = char_type[c];
+
+        if( ref )
+            where_to << '&' << ref << ';';
+        else
+            where_to << c;
+    }
+}
+
+//____________________________________________________________________________//
+
+inline void
+print_escaped( std::ostream& where_to, std::string const& value )
+{
+    print_escaped( where_to, const_string( value ) );
+}
+
+//____________________________________________________________________________//
+
+template<typename T>
+inline void
+print_escaped( std::ostream& where_to, T const& value )
+{
+    where_to << value;
+}
+
+//____________________________________________________________________________//
+
+typedef custom_manip<struct attr_value_t> attr_value;
+
+template<typename T>
+inline std::ostream&
+operator<<( custom_printer<attr_value> const& p, T const& value )
+{
+    *p << "=\"";
+    print_escaped( *p, value );
+    *p << '"';
+
+    return *p;
+}
+
+//____________________________________________________________________________//
+
+typedef custom_manip<struct cdata_t> cdata;
+
+inline std::ostream&
+operator<<( custom_printer<cdata> const& p, const_string value )
+{
+    return *p << BOOST_TEST_L( "<![CDATA[" ) << value << BOOST_TEST_L( "]]>" );
+}
+
+//____________________________________________________________________________//
+
+} // namespace unit_test
+
+} // namespace boost
+
+//____________________________________________________________________________//
+
+#include <boost/test/detail/enable_warnings.hpp>
+
+#endif // BOOST_TEST_XML_PRINTER_HPP_071894GER