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#ifndef JASON_SPIRIT_VALUE
#define JASON_SPIRIT_VALUE
/* Copyright (c) 2007 John W Wilkinson
This source code can be used for any purpose as long as
this comment is retained. */
// json spirit version 2.01
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <boost/config.hpp>
#include <vector>
#include <string>
#include <cassert>
namespace json_spirit
{
enum Value_type{ obj_type, array_type, str_type, bool_type, int_type, real_type, null_type };
template< class String > struct Pair_impl;
template< class String > // eg std::string or std::wstring
class Value_impl
{
public:
typedef String String_type;
typedef Pair_impl< String > Pair;
typedef std::vector< Pair > Object;
typedef std::vector< Value_impl< String > > Array;
Value_impl(); // creates null value
Value_impl( const typename String::pointer value ); // eg char*
Value_impl( const String& value );
Value_impl( const Object& value );
Value_impl( const Array& value );
Value_impl( bool value );
Value_impl( int value );
Value_impl( double value );
bool operator==( const Value_impl& lhs ) const;
Value_type type() const;
const String& get_str() const;
const Object& get_obj() const;
const Array& get_array() const;
bool get_bool() const;
int get_int() const;
double get_real() const;
Object& get_obj();
Array& get_array();
static const Value_impl null;
private:
Value_type type_;
String str_;
Object obj_;
Array array_;
bool bool_;
int i_;
double d_;
};
template< class String >
struct Pair_impl
{
Pair_impl( const String& name, const Value_impl< String >& value );
bool operator==( const Pair_impl< String >& lhs ) const;
String name_;
Value_impl< String > value_;
};
// typedefs for ASCII, compatible with JSON Spirit v1.02
typedef Value_impl< std::string > Value;
typedef Pair_impl < std::string > Pair;
typedef Value::Object Object;
typedef Value::Array Array;
// typedefs for Unicode, new for JSON Spirit v2.00
#ifndef BOOST_NO_STD_WSTRING
typedef Value_impl< std::wstring > wValue;
typedef Pair_impl < std::wstring > wPair;
typedef wValue::Object wObject;
typedef wValue::Array wArray;
#endif
///////////////////////////////////////////////////////////////////////////////////////////////
//
// implementation
template< class String >
const Value_impl< String > Value_impl< String >::null;
template< class String >
Value_impl< String >::Value_impl()
: type_( null_type )
{
}
template< class String >
Value_impl< String >::Value_impl( const typename String::pointer value )
: type_( str_type )
, str_( value )
{
}
template< class String >
Value_impl< String >::Value_impl( const String& value )
: type_( str_type )
, str_( value )
{
}
template< class String >
Value_impl< String >::Value_impl( const Object& value )
: type_( obj_type )
, obj_( value )
{
}
template< class String >
Value_impl< String >::Value_impl( const Array& value )
: type_( array_type )
, array_( value )
{
}
template< class String >
Value_impl< String >::Value_impl( bool value )
: type_( bool_type )
, bool_( value )
{
}
template< class String >
Value_impl< String >::Value_impl( int value )
: type_( int_type )
, i_( value )
{
}
template< class String >
Value_impl< String >::Value_impl( double value )
: type_( real_type )
, d_( value )
{
}
template< class String >
bool Value_impl< String >::operator==( const Value_impl& lhs ) const
{
if( this == &lhs ) return true;
if( type() != lhs.type() ) return false;
switch( type_ )
{
case str_type: return get_str() == lhs.get_str();
case obj_type: return get_obj() == lhs.get_obj();
case array_type: return get_array() == lhs.get_array();
case bool_type: return get_bool() == lhs.get_bool();
case int_type: return get_int() == lhs.get_int();
case real_type: return get_real() == lhs.get_real();
case null_type: return true;
};
assert( false );
return false;
}
template< class String >
Value_type Value_impl< String >::type() const
{
return type_;
}
template< class String >
const String& Value_impl< String >::get_str() const
{
assert( type() == str_type );
return str_;
}
template< class String >
const typename Value_impl< String >::Object& Value_impl< String >::get_obj() const
{
assert( type() == obj_type );
return obj_;
}
template< class String >
const typename Value_impl< String >::Array& Value_impl< String >::get_array() const
{
assert( type() == array_type );
return array_;
}
template< class String >
bool Value_impl< String >::get_bool() const
{
assert( type() == bool_type );
return bool_;
}
template< class String >
int Value_impl< String >::get_int() const
{
assert( type() == int_type );
return i_;
}
template< class String >
double Value_impl< String >::get_real() const
{
assert( type() == real_type );
return d_;
}
template< class String >
typename Value_impl< String >::Object& Value_impl< String >::get_obj()
{
assert( type() == obj_type );
return obj_;
}
template< class String >
typename Value_impl< String >::Array& Value_impl< String >::get_array()
{
assert( type() == array_type );
return array_;
}
template< class String >
Pair_impl< String >::Pair_impl( const String& name, const Value_impl< String >& value )
: name_( name )
, value_( value )
{
}
template< class String >
bool Pair_impl< String >::operator==( const Pair_impl& lhs ) const
{
if( this == &lhs ) return true;
return ( name_ == lhs.name_ ) && ( value_ == lhs.value_ );
}
// converts a C string, ie. 8 bit char array, to a string object
//
template < class String_t >
String_t to_str( const char* c_str )
{
String_t result;
for( const char* p = c_str; *p != 0; ++p )
{
result += *p;
}
return result;
}
}
#endif
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