text: #ifndef JSON_SPIRIT_WRITER_TEMPLATE
  #define JSON_SPIRIT_WRITER_TEMPLATE
  
  //          Copyright John W. Wilkinson 2007 - 2009.
  // Distributed under the MIT License, see accompanying file LICENSE.txt
  
  // json spirit version 4.03
  
  #include "json_spirit_value.h"
  
  #include <cassert>
  #include <sstream>
  #include <iomanip>
  
  namespace json_spirit
  {
      inline char to_hex_char( unsigned int c )
      {
          assert( c <= 0xF );
  
          const char ch = static_cast< char >( c );
  
          if( ch < 10 ) return '0' + ch;
  
          return 'A' - 10 + ch;
      }
  
      template< class String_type >
      String_type non_printable_to_string( unsigned int c )
      {
          typedef typename String_type::value_type Char_type;
  
          String_type result( 6, '\\' );
  
          result[1] = 'u';
  
          result[ 5 ] = to_hex_char( c & 0x000F ); c >>= 4;
          result[ 4 ] = to_hex_char( c & 0x000F ); c >>= 4;
          result[ 3 ] = to_hex_char( c & 0x000F ); c >>= 4;
          result[ 2 ] = to_hex_char( c & 0x000F );
  
          return result;
      }
  
      template< typename Char_type, class String_type >
      bool add_esc_char( Char_type c, String_type& s )
      {
          switch( c )
          {
              case '"':  s += to_str< String_type >( "\\\"" ); return true;
              case '\\': s += to_str< String_type >( "\\\\" ); return true;
              case '\b': s += to_str< String_type >( "\\b"  ); return true;
              case '\f': s += to_str< String_type >( "\\f"  ); return true;
              case '\n': s += to_str< String_type >( "\\n"  ); return true;
              case '\r': s += to_str< String_type >( "\\r"  ); return true;
              case '\t': s += to_str< String_type >( "\\t"  ); return true;
          }
  
          return false;
      }
  
      template< class String_type >
      String_type add_esc_chars( const String_type& s )
      {
          typedef typename String_type::const_iterator Iter_type;
          typedef typename String_type::value_type     Char_type;
  
          String_type result;
  
          const Iter_type end( s.end() );
  
          for( Iter_type i = s.begin(); i != end; ++i )
          {
              const Char_type c( *i );
  
              if( add_esc_char( c, result ) ) continue;
  
              const wint_t unsigned_c( ( c >= 0 ) ? c : 256 + c );
  
              if( iswprint( unsigned_c ) )
              {
                  result += c;
              }
              else
              {
                  result += non_printable_to_string< String_type >( unsigned_c );
              }
          }
  
          return result;
      }
  
      // this class generates the JSON text,
      // it keeps track of the indentation level etc.
      //
      template< class Value_type, class Ostream_type >
      class Generator
      {
          typedef typename Value_type::Config_type Config_type;
          typedef typename Config_type::String_type String_type;
          typedef typename Config_type::Object_type Object_type;
          typedef typename Config_type::Array_type Array_type;
          typedef typename String_type::value_type Char_type;
          typedef typename Object_type::value_type Obj_member_type;
  
      public:
  
          Generator( const Value_type& value, Ostream_type& os, bool pretty )
          :   os_( os )
          ,   indentation_level_( 0 )
          ,   pretty_( pretty )
          {
              output( value );
          }
  
      private:
  
          void output( const Value_type& value )
          {
              switch( value.type() )
              {
                  case obj_type:   output( value.get_obj() );   break;
                  case array_type: output( value.get_array() ); break;
                  case str_type:   output( value.get_str() );   break;
                  case bool_type:  output( value.get_bool() );  break;
                  case int_type:   output_int( value );         break;
  
                  /// reikicoin: Added std::fixed and changed precision from 16 to 8
                  case real_type:  os_ << std::showpoint << std::fixed << std::setprecision(8)
                                       << value.get_real();     break;
  
                  case null_type:  os_ << "null";               break;
                  default: assert( false );
              }
          }
  
          void output( const Object_type& obj )
          {
              output_array_or_obj( obj, '{', '}' );
          }
  
          void output( const Array_type& arr )
          {
              output_array_or_obj( arr, '[', ']' );
          }
  
          void output( const Obj_member_type& member )
          {
              output( Config_type::get_name( member ) ); space(); 
              os_ << ':'; space(); 
              output( Config_type::get_value( member ) );
          }
  
          void output_int( const Value_type& value )
          {
              if( value.is_uint64() )
              {
                  os_ << value.get_uint64();
              }
              else
              {
                 os_ << value.get_int64();
              }
          }
  
          void output( const String_type& s )
          {
              os_ << '"' << add_esc_chars( s ) << '"';
          }
  
          void output( bool b )
          {
              os_ << to_str< String_type >( b ? "true" : "false" );
          }
  
          template< class T >
          void output_array_or_obj( const T& t, Char_type start_char, Char_type end_char )
          {
              os_ << start_char; new_line();
  
              ++indentation_level_;
              
              for( typename T::const_iterator i = t.begin(); i != t.end(); ++i )
              {
                  indent(); output( *i );
  
                  typename T::const_iterator next = i;
  
                  if( ++next != t.end())
                  {
                      os_ << ',';
                  }
  
                  new_line();
              }
  
              --indentation_level_;
  
              indent(); os_ << end_char;
          }
          
          void indent()
          {
              if( !pretty_ ) return;
  
              for( int i = 0; i < indentation_level_; ++i )
              { 
                  os_ << "    ";
              }
          }
  
          void space()
          {
              if( pretty_ ) os_ << ' ';
          }
  
          void new_line()
          {
              if( pretty_ ) os_ << '\n';
          }
  
          Generator& operator=( const Generator& ); // to prevent "assignment operator could not be generated" warning
  
          Ostream_type& os_;
          int indentation_level_;
          bool pretty_;
      };
  
      template< class Value_type, class Ostream_type >
      void write_stream( const Value_type& value, Ostream_type& os, bool pretty )
      {
          Generator< Value_type, Ostream_type >( value, os, pretty );
      }
  
      template< class Value_type >
      typename Value_type::String_type write_string( const Value_type& value, bool pretty )
      {
          typedef typename Value_type::String_type::value_type Char_type;
  
          std::basic_ostringstream< Char_type > os;
  
          write_stream( value, os, pretty );
  
          return os.str();
      }
  }
  
  #endif
  